Entries |
Document | Title | Date |
20080196405 | Internal Combustion Engine Control Method - The invention relates to a method for controlling an internal combustion engine ( | 08-21-2008 |
20080209905 | Center Housing of a Turbine for a Turbocharger and Method of Manufacturing the Same - A turbine of a turbocharger comprises a floating insert which defines a nozzle for passing a fluid and which is supported axially slidable with respect to a housing by a sliding support means. Said floating insert is axially supported by said guiding means formed by a portion of a center housing. | 09-04-2008 |
20080250786 | METHOD FOR MANUALLY CONTROLLING A TURBOCHARGER - A method and a system for manually controlling a turbocharger is disclosed. The method includes steps for selecting a minimum boost pressure and a maximum boost pressure. The method also includes steps for selecting a pre-configured boost mode, including a predefined boost pressure minimum and a predefined boost pressure maximum. | 10-16-2008 |
20080271449 | TURBOCHARGER WITH SLIDING PISTON, HAVING OVERLAPPING FIXED AND MOVING VANES - A turbocharger having a sliding piston for regulating exhaust gas flow into the turbine wheel includes a set of fixed vanes mounted on a fixed first wall of the turbine nozzle and projecting axially toward an opposite second wall of the nozzle, and a set of moving vanes mounted on the end of the piston and projecting in an opposite axial direction toward the first wall of the nozzle. The two sets of vanes are circumferentially staggered relative to each other and overlap each other, the degree of overlap depending on the piston's axial position. The turbine wheel can be a splittered turbine wheel having long blades alternating with shorter blades. | 11-06-2008 |
20080271450 | Exhaust gas recirculation system - A power system including an exhaust producing engine, an exhaust system and an exhaust gas recirculation (EGR) system is provided. The EGR system may include an EGR flowpath and an air intake system. The EGR system may also include an EGR valve configured to regulate the flow of exhaust gases through the EGR flowpath. The power system may also include a monitoring system configured to monitor operating parameters of at least two components of the EGR system. The power system may also include a controller configured to determine, based on the monitored operating parameters, a maximum flowrate value for each of the components. Each of the maximum flowrate values may represent the maximum EGR flowrate for that component. The controller may be configured to control the EGR valve, based on the maximum flowrate values, to result in an EGR flowrate no greater than the lowest of the maximum flowrate values. | 11-06-2008 |
20080276614 | Turbocharger Shaft Over-Speed Compensation - A method for controlling engine operation, the engine having a turbocharger coupled between an intake and exhaust manifold of the engine via a turbocharger shaft, the method comprising dynamically determining turbocharger shaft speed based at least on intake and exhaust manifold conditions using a torque balance across the turbocharger; and adjusting turbocharger boosting to adjust turbocharger shaft speed in response to said dynamically determined turbocharger shaft speed. | 11-13-2008 |
20080282698 | Method of Controlling a Turbocharger Having a Variable-Geometry Mechanism and a Waste Gate - A method for controlling a variable-geometry turbine ( | 11-20-2008 |
20080295513 | Adaptive Learning System and Method of Vane Position for a Variable Geometry Turbocharger - A method of operation for an engine system having a variable geometry turbocharger with a vane, the vane having a variable position is provided. The method includes adjusting a vane of the variable geometry turbocharger through a range of operation by stepping through a plurality of vane positions and holding at each of the plurality of positions, the range spanning from a substantially minimum position to a substantially maximum position of the variable geometry turbocharger, and adjusting operation of the engine based on a response to the vane adjustment. | 12-04-2008 |
20080295514 | Exhaust Gas Recirculation Apparatus of an Internal Combustion Engine and Control Method Thereof - An exhaust gas recirculation apparatus of an internal combustion engine includes a turbocharger provided with a turbine in an exhaust passage and a compressor in an intake passage, a low pressure EGR passage which connects the exhaust passage downstream of the turbine with the intake passage upstream of the compressor, a high pressure EGR passage which connects the exhaust passage upstream of the turbine with the intake passage downstream of the compressor; an exhaust gas control catalyst provided in the exhaust passage downstream of the turbine and upstream of the low pressure EGR passage; and EGR gas amount changing means for simultaneously changing amounts of EGR gas flowing through the low pressure EGR passage and the high pressure EGR passage such that a temperature of the exhaust gas control catalyst is within a target range. | 12-04-2008 |
20080314042 | Stationary combustion engine - A method of operating a stationary internal combustion machine ( | 12-25-2008 |
20090000296 | Turbocharger having divided housing with integral valve - A turbocharger is provided having a turbine wheel and a housing configured to at least partially enclose the turbine wheel. The housing may have a first turbine volute including a first inlet and a second turbine volute having a second inlet. The first and second volutes may be configured to communicate a first and second fluid flow with the turbine wheel. The housing may also have a wall member axially separating the first and second turbine volutes. In addition, the housing may have a valve configured to selectively allow fluid in the first inlet to communicate with fluid in the second inlet. | 01-01-2009 |
20090007564 | Method and Apparatus for Controlling an Internal Combustion Engine - A control device for an internal combustion engine, which comprise a turbocharger, of which turbo flow rate is made variable, and an intake valve provided with a variable valve mechanism and in which mirror cycle is performed, the control device comprising: device, which calculates an intake air quantity per unit time and an intake air quantity per cycle on the basis of torque required to the internal combustion engine; device, which controls the turbocharger so that with the intake air quantity per unit time, supercharging pressure is further increased in that range, in which a ratio of supercharging pressure and exhaust pressure is equal to or less than a predetermined value; and device, which controls the variable valve mechanism on the basis of the supercharging pressure and the intake air quantity per cycle. | 01-08-2009 |
20090013688 | CONTROL METHOD FOR A TURBOCHARGER SUPERCHARGED INTERNAL COMBUSTION ENGINE - A control method for an internal combustion engine supercharged by means of a turbocharger provided with a turbine and with a compressor; the control method contemplates the steps of: establishing at least one operating limit curve on a Reduced Mass Flow Rate/Compression Ratio map; establishing at least one intervention curve of a wastegate valve which adjusts a bypass pipe of the turbine on a Reduced Mass Flow Rate/Compression Ratio map; establishing at least one intervention curve of a Poff valve which adjusts a bypass pipe of the compressor on a Reduced Mass Flow Rate/Compression Ratio map; using the operating limit curve to limit the pressure target downstream of the compressor used by the engine control; controlling the opening of the wastegate valve if the intervention curve of the wastegate valve is exceeded; and controlling the opening of the Poff valve if the intervention curve of the Poff valve is exceeded. | 01-15-2009 |
20090019848 | Method for controlling boost pressure in an internal combustion engine for motor vehicles - The invention relates to a method for controlling boost pressure in an internal combustion engine, comprising a boost pressure control device by means of which the boost pressure in an internal combustion engine is controlled, the boost pressure control device having a bypass unit, preferably in the exhaust gas flow of the internal combustion engine, and the bypass unit having an actuating device which enables the bypass unit when a predetermined actuating device setpoint value is reached. According to the invention, an adapted value is established as the correction value (pwgad) as a function of preset and/or detected internal combustion engine parameters (rlsol, nmot), by means of which the setpoint value for the actuating device, which is specified as a function of the operating point, for a predetermined control deviation is adapted between a boost pressure actual value and a boost pressure setpoint value. | 01-22-2009 |
20090038308 | EXHAUST GAS RECIRCULATION APPARATUS FOR INTERNAL COMBUSTION ENGINE AND METHOD OF CONTROLLING EXHAUST GAS RECIRCULATION APPARATUS - A variable-geometry turbocharger and a low-pressure EGR passage are provided. The variable-geometry turbocharger includes a turbine provided in an exhaust passage, and a compressor provided in an intake passage. In the variable-geometry turbocharger, the cross sectional area of a path through which exhaust gas passes is adjusted by adjusting the opening degree of a nozzle vane. The low-pressure EGR passage connects the area of the exhaust passage downstream of the turbine to the area of the intake passage upstream of the compressor. The EGR gas is recirculated to the intake passage through the low-pressure EGR passage. The EGR gas is directed to flow through the low-pressure EGR passage when a vehicle is decelerating or when fuel supply to the internal combustion engine is cut off. The pressure in the intake passage is adjusted toward a target pressure by adjusting the opening degree of the nozzle vane when the EGR gas flows through the low-pressure EGR passage. | 02-12-2009 |
20090064678 | MULTIPLE-TURBOCHARGER SYSTEM, AND EXHAUST GAS FLOW CONTROL VALVE THEREFOR - A multiple-turbocharger system for an internal combustion engine includes a first turbocharger comprising a first compressor driven by a first turbine, the first turbine operable to be driven by exhaust gas from the engine; a second turbocharger comprising a second compressor driven by a second turbine, the second turbine operable to be driven by exhaust gas from the engine; a first conduit arranged for supplying exhaust gas from the engine to the first turbine, and a second conduit arranged for supplying exhaust gas from the engine to the second turbine; and a valve coupled with the second conduit and switchable between an open condition allowing exhaust gas flow from the second conduit to the second turbine, and a closed condition substantially preventing exhaust gas flow from the second conduit to the second turbine but allowing a leakage flow to the second turbine sufficient to keep the second turbine rotating. | 03-12-2009 |
20090064679 | Variable geometry turbine - A variable geometry turbine comprises a turbine wheel supported in a housing for rotation about a turbine axis with an annular inlet passageway defined between a radial face of a movable nozzle ring and a facing wall of the housing. The nozzle ring is movable along the turbine axis to vary the width of the inlet passageway. A substantially annular rib is provided either on the face of the nozzle ring (such that the minimum width of the inlet passageway is defined between the rib and a the facing wall of the housing) or on the facing wall of the housing (such that the minimum width of the inlet passageway is defined between the rib and the nozzle ring). | 03-12-2009 |
20090077965 | Approach for Identifying and Responding to an Unresponsive Wastegate in a Twin Turbocharged Engine - As one example, an engine system for a vehicle is provided, comprising an internal combustion engine including an air intake system and an exhaust system; a first turbocharger including a first compressor arranged along a first branch of the air intake system, a first turbine arranged along a first branch of the exhaust system, and a first turbine bypass passage include a first wastegate; a second turbocharger including a second compressor arranged along a second branch of the air intake system, a second turbine arranged along a second branch of the exhaust system, and a second turbine bypass passage including a second wastegate; a first exhaust gas sensor arranged along the first branch of the exhaust system downstream of the first turbine and first wastegate; a second exhaust gas sensor arranged along the second branch of the exhaust system downstream of the second turbine and the second wastegate; and a control system configured to command both the first wastegate and the second wastegate to a closed position or an opened position and to indicate one of said wastegates as unresponsive to said command in response to a temperature difference between the first and second branches indicated by the first and second exhaust gas sensors. | 03-26-2009 |
20090077966 | SLIDING PISTON CARTRIDGE AND TURBOCHARGER INCORPORATING SAME - A sliding piston cartridge ( | 03-26-2009 |
20090090106 | SYSTEM AND METHOD FOR MODEL BASED BOOST CONTROL OF TURBO-CHARGED ENGINES - A system and method for controlling boost pressure in various turbo-charged engine configurations as well as variable geometry turbine (VGT) arrangements includes an electronic controller programmed to receive a predetermined desired boost pressure P | 04-09-2009 |
20090090107 | Method for Controlling a Turbocharger Using a Physical Model of the Turbocharger Speed - A method for controlling a turbocharger using a physical model of the turbocharger speed is disclosed with an application for controlling an internal-combustion engine. A setpoint pressure corresponding to a fluid pressure in the engine intake manifold is converted to a desired speed value. A physical relation connecting the turbocharger speed to a pressure ratio of the fluid flowing into and out of the turbine is then defined. A desired pressure ratio for the fluid flowing into and out of the turbine is deduced therefrom. A turbine actuator control law is estimated by mapping the turbine, from a measurement of the fluid flow rate flowing into the turbine and from the desired ratio of the pressures in the turbine. Finally, the control law is applied to the turbine actuator so that the pressure in the intake manifold is equal to the setpoint pressure. | 04-09-2009 |
20090094978 | SUPERCHARGER FOR AN ENGINE - An engine system with a turbocharger is provided. The system may include an exhaust manifold having plural independent exhaust passages, each of the exhaust passages being connected to an exhaust port of a corresponding engine cylinder. The system may further include a collective part formed by gathering said independent exhaust passages in said exhaust manifold or on a downstream side of said exhaust manifold. The system may further include an exhaust turbocharger connected to a downstream side of said collective part. The system may further include a variable exhaust valve for changing each passage cross-sectional area of said independent exhaust passage at an upstream side of said collective part. The system may further include a controller for controlling said variable exhaust valve, wherein said controller is configured to perform independent exhaust throttle control for reducing a passage cross-sectional area of at least one of said independent exhaust passages. | 04-16-2009 |
20090094979 | Turbocharger with adjustable turbine geometry and a vane carrier ring - In an exhaust gas turbocharger for an internal combustion engine, which comprises a housing with an exhaust gas-conducting section with an inflow passage for directing exhaust gas to a turbine wheel arranged in the exhaust gas-conducting section including a carrier ring with an adjustable guide apparatus having guide vanes arranged on one side of the carrier ring for controlling the flow velocity of the exhaust gas flow to the turbine wheel, the carrier ring has at least one compensating opening extending therethrough so as to provide for pressure compensation between the inflow duct and a rear chamber which is arranged on a side of the carrier ring opposite the guide vanes. | 04-16-2009 |
20090100834 | Pressure Balanced Swing Valve for Engine System - As one example, an apparatus configured to regulate flow in an exhaust passage of an internal combustion engine system is provided. The apparatus comprise a housing disposed within the exhaust passage defining a first region and a second region, where the first region includes a first stopper and a first valve plate, where first stopper completely surrounds first region, and the first valve plate seats on the first stopper to seal first region, and where the second region includes a second stopper and second valve plate, where second stopper completely surrounds the second region, and the second valve plate seats on the second stopper to seal second region, and where the first stopper; a translating mechanism coupled between first and second plates, the mechanism coupling the first and second plates through a set of gears in the housing, such that forces acting to close first plate are translated through mechanism to act to open the second plate, and vice versa; and an actuator to move the translating mechanism, where such movement causes both the first and second plates to rotate concurrently. | 04-23-2009 |
20090133399 | Turbocharger system implementing real time speed limiting - A turbocharger system for use with an engine having a braking mode of operation is disclosed. The turbocharger system may have a turbocharger with variable geometry, and a sensor situated to generate a signal indicative of a turbocharger speed. The turbocharger system may also have a controller in communication with the turbocharger and the sensor. The controller may be configured to vary the geometry of the turbocharger during the engine's braking mode of operation to increase a backpressure of the engine. The controller may also be configured to vary the geometry of the turbocharger to reduce the backpressure when the signal indicates a speed of the turbocharger within an amount of a desired speed. | 05-28-2009 |
20090139229 | Exhaust manifold - In an exhaust manifold for an internal combustion engine including a central part with tow exhaust gas flow ducts extending from the central part in opposite directions for collecting exhaust gas from first and respectively second cylinder groups of the engine, the center part includes a first control valve for controlling the exhaust gas flow from the first and the second cylinder groups to first and second turbine inlet flow passages, a second control valve for controlling the exhaust gas pressure and a third control valve for controlling the exhaust gas recirculation rate. | 06-04-2009 |
20090145125 | Exhaust gas waste gate system with charge pressure control - In one aspect, an internal combustion engine may include at least one turbocharger having an exhaust gas inlet and a turbine. An exhaust gas channel may be connected to the exhaust gas inlet of the turbocharger. In the exhaust gas system a valve may be provided that has a valve member. The valve may regulate exhaust gas directed to the turbine. The valve position may be controlled in response to a characteristic indicative of charge pressure of combustion air. In another aspect, a method may be provided for regulating the pressure of charged air delivered by a turbocharger of an internal combustion engine. The method may include regulating the exhaust gas that is directed to the turbine of the turbocharger in response to a characteristic indicative of a charge pressure of charged combustion air. In another aspect, a valve for regulating exhaust gas directed to the turbine may be provided. | 06-11-2009 |
20090151350 | Variable Flow Turbocharger - There is provided a variable flow turbocharger comprising a turbine chamber ( | 06-18-2009 |
20090151351 | METHOD FOR DETERMINING NECESSITY OF MULTIPLE VANE CLEANING PROCEDURES - A method of operating an internal combustion engine with a variable geometry turbocharger whereby the turbocharger is cleaned of accumulated soot on a time based periodic basis. | 06-18-2009 |
20090151352 | Turbocharger with dual wastegate - A turbocharger wastegate valve assembly comprises a first bypass port communicating with a first portion of an exhaust inlet and a first valve member adapted for engaging and sealing a first valve seat surrounding the first bypass port. The valve assembly further comprises a second bypass port communicating with a second portion of an exhaust inlet and a second valve member adapted for engaging and sealing a second valve seat surrounding the second port. A shaft supports each valve member for rotation about a shaft axis to lift both the first and second valve members from sealing engagement with the first and second valve seats respectively. The first valve seat is inclined relative to the second valve seat and the shaft has freedom of movement in the axial direction. | 06-18-2009 |
20090158731 | Actuator for Automobiles - An actuator for automobiles has a housing in which a communication channel for ventilation is formed, the communication channel allowing the inside and the outside of the housing to communicate with each other. Only one communication channel is formed, and the communication channel has an ascending portion that increases in height toward the inside of the housing. The ascending portion is formed so that a vertically lowermost point of the end (a second opening) of the ascending portion on the inner side of the housing is positioned higher than an uppermost point of the end (a first opening) of the ascending portion on the outer side of the housing. With such a configuration, condensation in the housing is minimized, and the risk of malfunction due to entrance of water is minimized. | 06-25-2009 |
20090158732 | CHARGING DEVICE - The present invention relates to a charging device ( | 06-25-2009 |
20090178406 | APPARATUS, SYSTEM, AND METHOD FOR UTILIZING A DIESEL AFTERTREATMENT DEVICE BETWEEN THE HIGH PRESSURE AND LOW PRESSURE TURBINE STAGES OF A TWO-STAGE TURBOCHARGING SYSTEM - An apparatus, system, and method are disclosed for utilizing a diesel aftertreatment device between the high pressure and low pressure turbine stages of a two-stage turbocharging system. A diesel aftertreatment device is connected in series between the high pressure turbine and the low pressure turbine such that the diesel aftertreatment device receives inflow from the high pressure turbine and provides outflow to the low pressure turbine. A bypass mechanism is provided such that at low engine speeds or loads, engine exhaust flows through the high pressure turbine as well as the diesel aftertreatment device, but at high engine speeds or loads, the high pressure turbine and diesel aftertreatment device are bypassed, thereby allowing the engine to operate more efficiently while still effectively removing pollutants from the engine exhaust. | 07-16-2009 |
20090178407 | ENHANCED ENGINE AIR BREATHING SYSTEM WITH AFTER TREATMENT DEVICE BEFORE THE TURBOCHARGER - A turbocharger arrangement providing a turbocharger, at least one treatment device, and at least one boost device. The turbocharger has a turbine and a compressor that are moveably coupled to one another. The turbine has an upstream path and a downstream path. The compressor has an upstream path and a downstream path. The at least one treatment device is in fluid communication with the upstream path of the turbine. The at least one additional boost device is operably engaged with the turbocharger to assist the flow of a gaseous fluid through the at least one treatment device and the turbocharger. | 07-16-2009 |
20090183507 | TURBOCHARGER WASTE GATE CONTROL - A method for improving turbocharger waste-gate control is presented. The method can reduce turbocharger flow oscillation, at least during some conditions. | 07-23-2009 |
20090188252 | METHOD AND APPARATUS FOR INCREASING THE EXHAUST GAS TEMPERATURE OF AN INTERNAL COMBUSTION ENGINE - The invention relates to a method and an apparatus for temporarily increasing the temperature in the exhaust gas of an internal combustion engine, comprising at least two associated turbochargers with a respective compressor in a fresh air feed to the internal combustion engine and a respective turbine in an exhaust gas line of the internal combustion engine, wherein a bypass is assigned to at least one compressor and/or one turbine, and comprising at least one exhaust gas retreatment system connected downstream of the turbines in the exhaust gas direction. In this case, the volumetric flow of fresh air and/or of exhaust gas directed past at least one compressor and/or one turbine through the bypasses is increased via regulating elements in the bypasses, which leads to a reduction in the charge pressure and hence to a reduction in the efficiency of the internal combustion engine and to an increase in the exhaust gas temperature. | 07-30-2009 |
20090193806 | VARIABLE TURBOCHARGER AND CONTROL METHOD FOR THE SAME - A variable turbocharger including a turbine housing, a first scroll fluidly communicating with a turbine, a second scroll formed along an outside of the first scroll, wherein the first scroll and the second scroll are disposed within the turbine housing for exhaust gas to exhaust through the turbine, a partitioning unit for selectively separating the first scroll and the second scroll, and a a flux control valve disposed at the exhaust gas inflow portion and selectively coupled to the partitioning unit for blocking the exhaust gas from flowing into the second scroll. The variable turbocharger may prevent turbo lag at a low speed and be highly efficient at a high speed. | 08-06-2009 |
20090205332 | Pneumatic Actuating Drive Having Integrated Electropneumatic Position Control - An electropneumatic actuator system for operating assemblies of an internal combustion engine includes a housing, in which an actuator is movably accommodated, which in turn is configured to be hollow and includes an aeration channel and a deaeration channel. A control slide valve is assigned to the actuator which is operated by a magnetic coil and which aerates, deaerates or closes a pressure chamber of the housing as a function of the relative position of the actuator. | 08-20-2009 |
20090211245 | Multi-stage turbocharger system - A turbocharger system comprises a first relatively small high-pressure (HP) turbocharger ( | 08-27-2009 |
20090211246 | Multi-stage turbocharger system - A turbocharger system comprises a first relatively small high-pressure (HP) turbocharger ( | 08-27-2009 |
20090211247 | Multi-stage turbocharger system - A turbocharger system comprises a first relatively small high-pressure (HP) turbocharger ( | 08-27-2009 |
20090217661 | Wastegate control system based on variable valve actuation - A hydraulically operated wastegate valve control system for a turbocharged internal combustion engine is disclosed. The control system includes a hydraulically operated wastegate valve configured to permit exhaust to bypass a turbine section. A first sensor is configured to sense an actuation of at least one of an intake valve and an exhaust valve by a variable valve actuation mechanism, and a second sensor is configured to detect a turbocharger speed. A controller is configured to deliver a control signal based on a predetermined relationship between the actuation of at least one of the intake and exhaust valves by the variable valve actuation mechanism and the turbocharger speed, and an operator is configured to receive the control signal and control actuation of the hydraulically operated wastegate valve based on the control signal. | 09-03-2009 |
20090217662 | INTERNAL COMBUSTION ENGINE WITH TWO-STAGE TURBO CHARGING SYSTEM - An internal combustion engine is provided with an exhaust gas pipe for taking exhaust gases from the engine's combustion chamber and an intake pipe for supplying air to the combustion chamber. The engine includes a turbo charging system with a high-pressure turbine that interacts with a high-pressure compressor and a low-pressure turbine that interacts with a low-pressure compressor, for recovery of energy from the engine's exhaust gas flow and pressurizing of the engine's intake air. The high-pressure turbine is connected to the low-pressure turbine via a duct. An exhaust gas pressure regulator is located in the duct between the high-pressure turbine and the low-pressure turbine. | 09-03-2009 |
20090217663 | METHOD AND DEVICE FOR CONTROLLING SUPERCHARGING AIR OF AN INTERNAL COMBUSTION ENGINE - A control method including regulating air pressure prevailing in an engine intake manifold around a setpoint value. The regulating includes a slow regulation loop, a fast regulating loop, and a limitation of pressure upstream of a turbine of a supercharger. The supercharging pressure limitation is implemented when the pressure upstream of the turbine exceeds a predetermined threshold value. | 09-03-2009 |
20090249783 | Locomotive Engine Exhaust Gas Recirculation System and Method - A system, in certain embodiments, includes a low pressure exhaust gas recirculation (EGR) system configure to route exhaust gas upstream of a compressor coupled to an intake of an engine in a low temperature environment. The system also includes a high pressure EGR system configure to route exhaust gas downstream of the compressor and upstream of the intake at a high altitude and/or in a low pressure environment. The system, in some embodiments, also may include a flow control configured to change flow of the exhaust gas of the low pressure and high pressure EGR systems based on operating limits and environmental conditions including temperature and pressure. | 10-08-2009 |
20090249784 | VARIABLE TURBINE GEOMETRY OF AN EXHAUST GAS TURBOCHARGER OF A MOTOR VEHICLE - The invention relates to a variable turbine geometry ( | 10-08-2009 |
20090249785 | VARIABLE-NOZZLE ASSEMBLY FOR A TURBOCHARGER - A variable-nozzle turbocharger includes a turbine housing and a center housing, and a generally annular nozzle ring and an array of vanes rotatably mounted to the nozzle ring such that the vanes are rotatably adjustable for regulating exhaust gas flow to the turbine wheel. An elastically deformable member is disposed between a radially inwardly facing surface of the nozzle ring and a radially outwardly facing surface of the center housing, the elastically deformable member having a radially inner surface contacting the radially outwardly facing surface of the center housing and having a radially outer surface contacting the radially inwardly facing surface of the nozzle ring so as to radially center the nozzle ring relative to the center housing. | 10-08-2009 |
20090255250 | SWITCH VALVE FOR EXHAUST GAS TURBOCHARGER SYSTEM - A switch valve for an exhaust gas-driven turbocharger system comprises a valve body defining an inlet passage, an outlet passage, and a generally annular volute in fluid communication with the outlet passage via a plurality of openings extending generally radially inwardly from the volute. A valve seat is disposed adjacent the outlet passage. A movable valve member is slidable between an open position spaced from the valve seat and a closed position engaged with the valve seat. The volute is bounded on a radially outer side by an outer wall extending about the circumference of the volute. The inlet passage enters into the volute at a first circumferential location. At a second circumferential location diametrically opposite from the first circumferential location, the volute has a dam presenting a substantial impediment to circumferential flow. | 10-15-2009 |
20090255251 | EXHAUST GAS RECIRCULATION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE - An exhaust gas recirculation system for an internal combustion engine. The system includes an exhaust gas recirculation valve disposed in an exhaust gas recirculation channel. A first exhaust gas cooler is disposed in the exhaust gas recirculation channel. A turbine is disposed in the exhaust gas recirculation channel downstream of the first exhaust gas cooler relative to a flow direction of an exhaust gas. A control valve is disposed in at least one of a region of an exhaust gas manifold and an exhaust gas channel. | 10-15-2009 |
20090266073 | Bearing health monitor - A turbocharger monitor including a sensor adapted and positioned with respect to a turbocharger housing to sense passing compressor blades, generating both rotor rotation information and rotor displacement information. A controller is configured to receive the generated information from the blade sensor, and to establish rotor rotation speed and an indicator of bearing condition. | 10-29-2009 |
20090272112 | TURBOCHARGER WITH VARIABLE NOZZLE HAVING VANE SEALING SURFACES - A variable nozzle for a turbocharger includes a plurality of vanes rotatably mounted on a nozzle ring and disposed in a nozzle flow path defined between the nozzle ring and an opposite nozzle wall. Either or both of the faces of the nozzle ring and nozzle wall include(s) at least one step that defines sealing surfaces positioned to be substantially abutted by airfoil surfaces of the vanes in the closed position of the vanes and to be spaced from the airfoil surfaces in positions other than the closed position. This substantial abutment between the airfoil surfaces and the sealing surfaces serves to substantially prevent exhaust gas from leaking past the ends of the airfoil portions. At the same time, clearances between the nozzle ring face and the end faces of the airfoil portions can be sufficiently large to prevent binding of the vanes under all operating conditions. | 11-05-2009 |
20090277171 | Exhaust gas turbocharger turbine - In an exhaust gas turbocharger turbine for an internal combustion engine having a housing including a turbine wheel rotatably supported in the housing, wherein the housing has an exhaust gas flow guide section including an exhaust gas flow control arrangement with a guide vane structure for directing exhaust gas onto the turbine rotor, an adjustment mechanism with an axially movable control slide is provided which is movable by an operating fork which is slidably supported on a guide element and engages the control slide at opposite sides so as to prevent cogging of the movable control slide during movement into, and out of, the exhaust gas flow guide section. | 11-12-2009 |
20090288413 | EXHAUST GAS RECIRCULATION CONTROL SYSTEMS AND METHODS - An exhaust gas recirculation control system comprises a pressure condition evaluation module and a protection module. The pressure condition evaluation module evaluates at least one of vane movement of a turbocharger and engine pressure. The protection module selectively controls an exhaust gas recirculation valve based on the at least one of the vane movement of the turbocharger and the engine pressure. | 11-26-2009 |
20090293476 | Fuel control system for limiting turbocharger speed - A method is provided for operating a turbocharger. The method includes sensing a parameter indicative of a speed of a turbocharger and a parameter indicative of an engine speed. The method also includes determining a first desired engine speed based on the speed of the turbocharger, the engine speed, and a maximum desired speed of the turbocharger. The method further includes regulating a flow of fuel to an engine based on the first desired engine speed. | 12-03-2009 |
20090293477 | TRANSIENT COMPRESSOR SURGE RESPONSE FOR A TURBOCHARGED ENGINE - A method for responding to an existing or incipient surge condition of a turbocharger coupled to an engine of a motor vehicle is provided. The method comprises receiving a signal responsive to an operating condition of the turbocharger and adjusting one or more operating parameters of the motor vehicle when a power of the signal, integrated over a pre-selected range of non-zero frequencies, exceeds a pre-selected threshold. Other embodiments provide related systems for responding to an existing or incipient surge condition of a turbocharger. | 12-03-2009 |
20090301080 | Bypass valve for internal combustion engines - A bypass valve for internal combustion engines for connecting the pressure side to the intake side of a supercharging device. The bypass valve includes an electromagnetic actuator and a valve housing in which a closing component is movably accommodated. The closing component has a valve body, acted upon by pressure and movable in a flow channel, and a switchable sealing element. | 12-10-2009 |
20090301081 | AMBIENT-AIR PULSED VALVE FOR INTERNAL COMBUSTION ENGINES EQUIPPED WITH A TURBOCHARGER - The invention relates to an air control valve for internal combustion engines comprising a turbocharger, the air control valve being placed inside a bypass channel between a pressure side and an intake side of a boost pressure pump of the turbocharger, a housing which comprises an electromagnetic drive unit and a valve unit movable in said housing, said valve unit essentially comprising a valve rod and a valve closing body attached thereto and having a circular sealing element, wherein means are provided that keep the moving valve unit in a closed position when no current is supplied to said valve unit, wherein at least one pressure compensation opening is provided at the moving valve unit, wherein the valve closing body has a cylindrical lateral surface which cooperates with means in such a manner that a housing interior is sealed towards the pressure side or the intake side. | 12-10-2009 |
20090301082 | TURBOCHARGER HAVING PISTON-TYPE VARIABLE NOZZLE WITH INTEGRATED ACTUATION SYSTEM - A turbocharger ( | 12-10-2009 |
20090301083 | VNT FLOW CALIBRATION ADJUSTMENT - An exemplary variable geometry turbine includes a turbine wheel; a variable geometry assembly that includes a rotatable control ring that has a slot and a plurality of vanes where each vane has a post pivotably controlled by rotation of the control ring and where adjacent vanes define nozzles to direct exhaust gas to the turbine wheel; a crankshaft that has a pin for receipt by the slot of the control ring where rotation of the crankshaft rotates the control ring; and a center housing that includes a rotatable stop fixed to the crankshaft and having a close stop surface, a secure component and a translatable shaft where the translatable shaft comprises an engagement mechanism to engage the rotatable stop; where translation of the shaft causes rotation of the crankshaft and where the close stop surface establishes a contact with the secure component to limit rotation of the crankshaft and to establish a closed limit for the vanes. Various other exemplary methods, devices, systems, etc., are also disclosed. | 12-10-2009 |
20090301084 | Air Control System for Charge Control of Engine and Method Thereof - An air control system for charge control of an engine and a method thereof. An air cut-off valve is installed between an air tank supplying compressed air and a wastegate control valve adjusting an opening degree of a wastegate valve. The air cut-off valve is configured to cut off a channel when an idle validation switch signal is inputted into an engine control unit. | 12-10-2009 |
20090308070 | EGR SYSTEM WITH DEDICATED EGR CYLINDERS - Improved exhaust gas recirculation system and methods that use one or more of the engine's cylinders as dedicated EGR cylinders. All of the exhaust from the dedicated EGR cylinders is recirculated back to the engine intake. Thus, the EGR rate is constant, but the EGR mass flow may be controlled by adjusting the air-fuel ratio of the dedicated EGR cylinders or by using various variable valve timing techniques. | 12-17-2009 |
20090308071 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROLLING THE SAME - A control apparatus for an internal combustion engine includes an exhaust gas recirculation unit; an intercooler that is provided in the intake passage, at a position downstream of a position to which the exhaust gas is recirculated back; a bypass passage through which an intake air flow bypasses the intercooler. When it is determined that the pH of the condensed water obtained from the exhaust gas is at the level at which the intercooler corrodes in the state where the exhaust gas is recirculated back by the exhaust gas recirculation unit, the control apparatus executes a control for cutting off an intake air flow toward the intercooler to direct the intake air flow only to the bypass passage. Thus, it is possible to ensure reliability of the intercooler. | 12-17-2009 |
20090320466 | Supercharged internal combustion engine - A supercharged internal combustion engine system wherein the supercharger assembly includes an ejector pump driven by high-pressure air for pumping intake air into engine combustion chamber. Included are means for sensing engine power demand and controlling the supercharging action. A compressor and an air tank for providing high-pressure air for driving the ejector pump are also disclosed. During periods of natural aspiration the ejector pump can be by-passed to reduce flow impedance. The ejector pump can use a driving nozzle with a fixed throat or a variable throat, or a lobed nozzle. Effective supercharging is achieved even at low engine speeds. One of the objects of the invention is to obtain more power from small displacement ICE and thus providing automotive vehicles with sufficient acceleration in addition to good fuel economy. | 12-31-2009 |
20100000213 | EXHAUST GAS CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROLLING THE SAME - An exhaust gas control system for an internal combustion engine includes a turbocharger that includes a compressor arranged in an intake passage, and a turbine arranged in an exhaust passage; a low-pressure EGR unit that recirculates a portion of exhaust gas back to the internal combustion engine through a low-pressure EGR passage that provides communication between the exhaust passage, at a portion downstream of the turbine, and the intake passage, at a portion upstream of the compressor; a low-pressure EGR valve that is provided in the low-pressure EGR passage, and that changes the flow passage area of the low-pressure EGR passage; and a valve control unit that executes an opening/closing control over the low-pressure EGR valve. When it is determined that the internal combustion engine is under a predetermined low-temperature environment, the low-pressure EGR valve is kept closed while the internal combustion engine is in the fuel-supply cutoff operation mode. | 01-07-2010 |
20100011762 | INTERNAL COMBUSTION ENGINE AND CONTROL METHOD THEREOF - In a V-type six cylinder engine, cylinder groups are provided in which a plurality of cylinders are arranged divided into left and right first and second banks. An intake pipe, a first exhaust pipe, and a second exhaust pipe are connected to the cylinder groups of the banks. A first upstream three-way catalyst and a first control valve are provided in one exhaust pipe while a second upstream three-way catalyst and a second control valve are provided in the other exhaust pipe. The exhaust pipes are communicated together upstream of the upstream three-way catalysts and the control valves by a communicating pipe. A third control valve that adjusts the flowrate of exhaust gas is provided in the communicating pipe. | 01-21-2010 |
20100011763 | CONTROL DEVICE FOR MULTI-STAGE TURBOCHARGERS - A control device for multi-stage turbochargers is provided that is capable of improving fuel consumption in transient and stationary states of an engine equipped with multi-stage turbochargers. A control device | 01-21-2010 |
20100011764 | THERMATICALLY OPERATED BYPASS VALVE FOR PASSIVE WARMUP CONTROL OF AFTERTREATMENT DEVICE - In order for automobile exhaust catalysts to function they must be at operational temperatures. When an engine starts from cold the vehicle, including the exhaust system and any after-treatment device located therein, is at ambient temperature. Since 60% to 80% of the total emissions emitted occur at engine cold start and idle up to 120 seconds, it is imperative that the catalyst function as fast as possible. This invention provides a passive thermatically controlled bypass valve to enable the exhaust flow to bypass the enthalpy loss incurred by driving the turbine wheel of a turbocharger, and thus more rapidly deliver heat to the catalyst or after-treatment. | 01-21-2010 |
20100024414 | Turbocharger having balance valve, wastegate, and common actuator - A turbocharger for a use with a combustion engine is provided. The turbocharger may have a turbine housing with a first volute, a second volute, and a common outlet. The turbocharger may also have a turbine wheel disposed between the common outlet and the first and second volutes. The turbocharger may further have a first valve configured to selectively fluidly communicate the first volute with the second volute upstream of the turbine wheel, a second valve configured to selectively fluidly communicate the second volute with the common outlet to bypass the turbine wheel, and a common actuator configured to move the first and second valves. | 02-04-2010 |
20100024415 | VARIABLE TURBO SUPERCHARGER AND METHOD OF DRIVING THE SAME - A hydraulic servo drive device for driving a slide mechanism of a variable geometry turbocharger includes a servo piston connected to a driveshaft of the slide mechanism and a pilot spool that is accommodated in a center hole of the servo piston and slides by pilot pressure. A first hydraulic chamber and a second hydraulic chamber to and from which pressure oil flows are provided in a housing. The servo piston separately includes a pressure port for introducing pressure oil from an outside, a first piston port for intercommunicating the center hole and the first hydraulic chamber, a second piston port for intercommunicating the center hole and the second hydraulic chamber, and a return port for exiting pressure oil. | 02-04-2010 |
20100037605 | VARIABLE GEOMETRY TURBINE - A variable geometry turbine has a gas inlet chamber and a gas flow inlet passage downstream of the inlet chamber and upstream of said turbine wheel. The inlet passage is defined between a moveable first wall and a second wall and an actuator is operable to control displacement of the first wall in order to vary the size of the gas flow inlet passage. A piston member defining the first wall or being connected to it is received in a piston chamber and serves to move the first wall as a result of displacement of the piston member in the piston chamber. A bypass passage defined in the housing and extends between the piston chamber and a location in the turbine upstream of the inlet passage for delivering gas to the piston chamber. The bypass passage is disposed such that gas introduced through the bypass passage pressurises the chamber and applies a force to displace the piston member in a direction that causes the first wall to move towards the second wall. The gas, which may be the exhaust gas from an engine, thus serves to assist the operation of the actuator. | 02-18-2010 |
20100037606 | MULTISTEP TURBOCHARGER ARRANGEMENT - The invention relates to a multistep turbocharger arrangement ( | 02-18-2010 |
20100037607 | METHOD AND DEVICE FOR THE REGENERATION OF A PARTICLE FILTER ARRANGED IN THE EXHAUST GAS TRACT OF AN INTERNAL COMBUSTION ENGINE - A method and to a device for the regeneration of a particle filter arranged in the exhaust gas tract of an internal combustion engine with at least one NO oxidation catalyst for the oxidation of NO, especially to NO | 02-18-2010 |
20100043428 | Engine With Exhaust Temperature Control and Method of Controlling Engine Exhaust Gas Temperature and Engine Intake Temperature - An engine ( | 02-25-2010 |
20100043429 | Charge-cooled valve - A valve for use with a turbocharger is disclosed. The valve may have a valve element movable to selectively direct a flow of fluid. They valve may also have a control portion connected to move the valve element, and a cooling portion configured to receive a pressurized cooling medium from the turbocharger. | 02-25-2010 |
20100050630 | Turbocharged Engine Using an Air Bypass Valve - A system to cool exhaust gas entering a catalytic converter in a turbocharged engine is disclosed. An air bypass valve is controlled to vent pressurized air to the atmosphere to overrev a turbocharger when exhaust gas exceeds a predetermined temperature. The rotation of the turbocharger increases to maintain a desired boost pressure. When this occurs, the turbocharger absorbs more energy from the exhaust gas to maintain the desired boost pressure. Thus, the exhaust gas entering the catalytic converter is cooled. | 03-04-2010 |
20100058757 | REGULATING METHOD FOR A TURBOCHARGER OF AN INTERNAL COMBUSTION ENGINE, AND TURBOCHARGER - The invention relates to a regulating method for a turbocharger ( | 03-11-2010 |
20100064684 | VARIABLE TURBO SUPERCHARGER AND METHOD OF RETURNING OIL FROM HYDRAULIC DRIVE - Provided are a variable geometry turbocharger in which a drain pipe from a hydraulic servo drive device can be omitted and in which a member for transmitting power of the hydraulic servo drive device can be efficiently lubricated, and a method of returning oil from the hydraulic servo drive device. The variable geometry turbocharger includes a slide mechanism for changing an opening degree of a nozzle, the hydraulic servo drive device for driving the slide mechanism by hydraulic pressure, and drain flow paths for delivering oil exhausted from the hydraulic servo drive device into an oil return chamber adjacent to a turbocharger body. | 03-18-2010 |
20100064685 | INTERNAL COMBUSTION ENGINE COMPRISING AN EXHAUST GAS RECIRCULATION SYSTEM - An internal combustion engine includes a plurality of cylinders, an air intake line and an exhaust line collecting exhaust gas. The engine also includes an EGR line for rerouting a part of the exhaust gas from the exhaust line towards the air intake line and at least a first turbocharger comprising a first turbine driven by the exhaust gas flowing towards the atmosphere, linked to a first compressor located on the air intake line. The engine further includes a variable geometry EGR turbine located on the EGR line, driven by the EGR gas flowing in the EGR line. Thus, thanks to the pressure reduction occurring in the turbine, the EGR gas temperature is lowered, and less cooling power from the engine cooling system is required to cool down the EGR. | 03-18-2010 |
20100071364 | STOICHIOMETRIC COMPRESSION IGNITION ENGINE WITH INCREASED POWER OUTPUT - A stoichiometric compression ignition engine has a turbocharger coupled to it so that the exhaust from the engine feeds the turbine and the compressor provides combustion air past a throttle and intercooler to the engine intake manifold. An exhaust after treatment device is positioned before the exhaust of the engine. A power turbine is connected in parallel relation to the turbocharger turbine and is controlled by a valve to operate the power turbine whenever either the turbocharger compressor boost or the turbocharger turbine back pressure exceed given limits. The power turbine is connected by a power transmission device to either couple to the engine output or to an electrical generator. An EGR loop may be driven by a pump also connected to the power turbine to lower in cylinder pressures. | 03-25-2010 |
20100077745 | Wastegate Control System and Method - A wastegate control system and a method for the wastegate control system is disclosed. The wastegate control system includes an ambient pressure sensor, a throttle angle sensor, an ignition timing sensor, a knock sensor, an intake charge temperature sensor and an intake charge humidity sensor. A wastegate is controlled according to information received from these sensors. | 04-01-2010 |
20100083654 | TURBOCHARGER - The invention relates to a turbocharger ( | 04-08-2010 |
20100089055 | Tamperproof and Calibration Device, Especially for a Turbocharger with a Variable Nozzle Device - A tamperproof and calibration device comprises an adjusting member for adjusting the position of a first element in respect to a second element in a direction which is different from another direction in which a fixing member acts for fixation of the first element with respect to the second element. The tamperproof and calibration device is applicable to a turbocharger comprising a variable nozzle device coupled with an actuated member to be actuated by an actuator, wherein the tamperproof and calibration device connects the actuated member with the actuator for calibration of the relative position of the actuated member of the variable nozzle device with respect to a predetermined position of the actuator. | 04-15-2010 |
20100095670 | METHOD AND DEVICE FOR REGULATING OR CONTROLLING A COMPRESSOR OF AN EXHAUST-GAS TURBOCHARGER - The invention relates to a method for regulating or controlling the compressor ( | 04-22-2010 |
20100095671 | CYLINDER HEAD OF INTERNAL-COMBUSTION ENGINE - One ends of an exhaust path | 04-22-2010 |
20100095672 | TWO-STAGE SUPERCHARGING EXHAUST TURBOCHARGER - A light and compact two-stage supercharging exhaust turbocharger is provided which is capable of reducing the weight and the number of components, of reducing the number of assembling processes using a bolt, and of reducing the number of separating processes in a narrow engine room in such a manner that an exhaust manifold portion, in which an exhaust manifold and a high-pressure turbine housing of a high-pressure-stage supercharger are formed into a single body by casting, is integrally formed with a low-pressure-stage connection portion mounted with an exhaust gas control valve. In a two-stage supercharging exhaust turbocharger including: a high-pressure-stage supercharger having a high-pressure turbine driven by exhaust gas discharged from an exhaust manifold of an engine; a low-pressure-stage supercharger having a low-pressure turbine driven by the exhaust gas used to drive the high-pressure-stage supercharger, the high-pressure-stage supercharger and the low-pressure-stage supercharger being arranged in series in an exhaust gas passageway; and an exhaust gas control valve configured to selectively change flow rates of the exhaust gas passageways of the high-pressure-stage supercharger and the low-pressure-stage supercharger, wherein an exhaust manifold incorporating casing is configured by integrally forming the exhaust manifold, a high-pressure turbine housing of the high-pressure-stage supercharger, and a valve casing accommodating the exhaust gas control valve. | 04-22-2010 |
20100101225 | VALVE CONTROL DEVICE - The present invention relates to a valve control device ( | 04-29-2010 |
20100101226 | CONTROLLING EXHAUST GAS RECIRCULATION IN A TUROCHARGED COMPRESSION-IGNITION ENGINE SYSTEM - One embodiment of the invention may include a method of controlling exhaust gas recirculation (EGR) in a turbocharged compression-ignition engine system including a high pressure (HP) EGR path and a low pressure (LP) EGR path. The method may include determining a target total EGR fraction for compliance with exhaust emissions criteria, and determining a target HP/LP EGR ratio to optimize other engine system criteria within the constraints of the determined target total EGR fraction. The determining of the target HP/LP EGR ratio may include using at least engine speed and load as input to a base model to output a base EGR value, using at least one other engine system parameter as input to at least one adjustment model to output at least one EGR adjustment value, and adjusting the base EGR value with the at least one EGR adjustment value to generate at least one adjusted EGR value. | 04-29-2010 |
20100107629 | Exhaust system having turbo-assisted high-pressure EGR - An exhaust system for a use with an engine is provided. The exhaust system may have an exhaust manifold configured to direct exhaust from the engine, and a main turbocharger connected to receive exhaust from the exhaust manifold. The exhaust system may also have a recirculation turbocharger having a compressor connected to receive exhaust from the exhaust manifold in parallel with the main turbocharger, and a turbine connected to receive exhaust from the main turbocharger to drive the compressor. The exhaust system may further have a control valve located downstream of the recirculation turbocharger to regulate exhaust flow through the compressor. | 05-06-2010 |
20100107630 | Exhaust temperature and pressure modeling systems and methods - An exhaust control system for a vehicle comprises an exhaust system modeling module and an actuator control module. The exhaust system modeling module estimates an input gas temperature, an output gas temperature, a mass temperature, and a pressure for an exhaust system component of an exhaust system implemented in the vehicle. Exhaust gas flows through the exhaust system component. The actuator control module selectively adjusts an engine operating parameter based on at least one of the input gas temperature, the output gas temperature, the mass temperature, and the pressure. | 05-06-2010 |
20100115944 | BOOST ASSIST DEVICE ENERGY CONSERVATION USING WINDMILLING - One embodiment includes windmilling a boost assist device by passing intake air through the boost assist device during operating modes where the device is not required to be operated (i.e., is not being actively powered). The windmilling effect will cause the boost assist device to rotate due to the windmilling effects of the air. This windmilling effect normally may not achieve full boost assist device operating speeds, but it will normally be sufficient to allow the boost assist device to avoid the high energy usage initial speed up phase of operation when the boost assist device is called upon to be actively powered. In one embodiment of the invention the windmilling conserves energy used to drive the boost assist device. | 05-13-2010 |
20100115945 | EXHAUST GAS RECIRCULATION SYSTEM AND EXHAUST GAS RECIRCULATION METHOD FOR INTERNAL COMBUSTION ENGINE - First, an amount of external EGR gas is adjusted so that an amount, by which an amount of internal EGR gas is adjusted, falls within a predetermined range (S | 05-13-2010 |
20100122530 | INTERNAL COMBUSTION ENGINE WITH EXHAUST GAS RECIRCULATION - An internal combustion engine has a turbocharger system and an exhaust gas recirculation (EGR) path. The turbocharger system comprises an inlet, an outlet and at least one turbocharger. The exhaust gas recirculation path recirculates a flow of exhaust gas to the air intake path. An EGR turbocharger has a turbine with an inlet in fluid communication with a first location in the exhaust gas path and an outlet in fluid communication with a second location in the exhaust gas path. The first and second locations being disposed such that, in use, the pressure difference of the gas between the inlet and outlet of the EGR turbine is less than the pressure difference of the gas between the inlet and outlet of the turbocharger system. The expansion ratio across the EGR turbine is therefore less than that across the turbocharger system and the EGR turbocharger is able to operate with greater efficiency. | 05-20-2010 |
20100126168 | TURBOCHARGER WITH VARIABLE TURBINE NOZZLE ACTUATED BY HYDRAULIC AND MECHANICAL SPRING FORCES - A turbocharger having a variable turbine nozzle that includes an array of vanes whose setting angle is adjustable by rotation of a crank shaft coupled with a unison ring that pivots the vanes. The crank shaft is rotated by an actuation system made up of a piston contained in a bore formed in the center housing, and a hydraulic system for supplying pressurized hydraulic fluid to the bore selectively on one side or an opposite side of the piston for causing the piston to move in one direction or the other. The piston is connected to the crank shaft by a mechanical linkage that converts reciprocating movement of the piston to rotational movement of the crank shaft. A spring is arranged between the piston and a surface of the bore and continuously exerts a spring force on the piston toward the fully open position of the piston. | 05-27-2010 |
20100126169 | Internal combustion engine with two-stage register supercharging - In an internal combustion engine with two-stage register charging, comprising an exhaust gas line including a flow control valve with a first outlet tube section leading to a low pressure turbine via a high pressure turbine and a second outlet tube section leading directly to the low pressure turbine, the flow control valve includes a flap for controlling the exhaust gas flow from the internal combustion engine so as to either block the exhaust gas flow or direct the exhaust gas to the low pressure turbine selectively through the high pressure turbine or directly to the low pressure turbine or simultaneously via both paths. | 05-27-2010 |
20100139267 | SECONDARY AIR SYSTEM FOR A COMBUSTION ENGINE BREATHING SYSTEM - One embodiment of the invention includes a method comprising: in a combustion engine breathing system having an air intake side and a combustion exhaust side, injecting air from the air intake side into the combustion gas exhaust side. | 06-10-2010 |
20100139268 | Internal Combustion Engine with Two Chargers and Method for Operating Same - The invention relates to an internal combustion engine with at least one cylinder which has at least two exhaust valves which are connected to exhaust gas lines in which there are the turbines of the exhaust gas turbochargers which have compressors for the charging air of internal combustion engines. It is provided that downstream from the compressors there is a merge ( | 06-10-2010 |
20100139269 | TURBOCHARGED INTERNAL COMBUSTION ENGINE AND METHOD - A turbochargeable internal combustion engine contains a motor which has an exhaust manifold on the exhaust gas side, a turbocharger which has at least two turbocharger stages and, on the exhaust gas side, has an exhaust gas inlet and an exhaust gas outlet. The engine further has a primary catalytic converter, which is arranged on the exhaust gas side between the exhaust manifold of the engine block and the exhaust gas inlet of the turbocharger. | 06-10-2010 |
20100146965 | Engine system having multi-stage turbocharging and exhaust gas recirculation - An engine system is disclosed. The engine system includes an engine, an intake system for providing intake air to the engine and an exhaust system receiving exhaust gas from the engine. The engine system also includes a first exhaust turbine arranged downstream of the engine and a second and third exhaust turbines coupled in parallel and arranged downstream of the first exhaust turbine. A first valve is associated with the second and third exhaust turbines, the first valve configured to at least partially restrict exhaust gas to one of the second and third exhaust turbines and increase exhaust gas to the other turbine. The engine system also includes an exhaust gas recirculation system configured to redirect at least a portion of exhaust gas from the exhaust system to the intake system. | 06-17-2010 |
20100146966 | DIAGNOSTIC METHOD AND DEVICE FOR DIAGNOSING AN INTAKE SYSTEM OF AN INTERNAL COMBUSTION ENGINE - An internal combustion engine has an intake system ( | 06-17-2010 |
20100170244 | ROBUST MULTIPLE INPUT MULTIPLE OUTPUT CONTROL IN A HIGH VARIABILITY SYSTEM - One embodiment is a method including interpreting a static decoupling gain set for a gas flow handling system having a plurality of inputs and a plurality of outputs. The static decoupling gain set includes gain value sets, where each gain value set decouples the plurality of inputs from the plurality of outputs at a frequency of interest and specified system operating condition of the gas flow handling system. The method further includes calculating an error term based on at least one of the inputs and a current value corresponding to one of the outputs. The method further includes providing an adjusted controller gain in response to a current system operating condition and the static decoupling gain set, and determining actuator responses based on the adjusted controller gain and the at least one error term. | 07-08-2010 |
20100175375 | Waste gate actuator for an exhaust gas turbocharger - A waste gate actuator for an exhaust gas turbocharger, including an actuator housing and an actuator cover, an element for actuating the waste gate valve and electronic components for controlling the element to actuate the waste gate valve being arranged in the waste gate actuator. Provided is a simple and inexpensive revolution counting system on the turbocharger which allows the number of revolutions of the rotating parts (turbine wheel, compressor wheel, turboshaft to be detected without substantial constructional alterations to the design of existing turbochargers. A sensor for detecting the variations in a magnetic field that are produced by the rotation of the rotating parts is arranged in or on the actuator housing or in or on the actuator cover. | 07-15-2010 |
20100175376 | TURBOCHARGER SYSTEM WITH TURBINE BYPASS VALVE ACTUATED BY MULTIPLE-RATE FLUID PRESSURE ACTUATOR - A fluid pressure actuator for a turbocharger system's turbine bypass valve comprises a piston slidable in a cylinder so as to define a chamber containing a compression spring assembly operable to exert a spring force on the piston. The cylinder can be selectively subjected to a vacuum or pressure for exerting a fluid pressure force on the piston in a direction opposite from the spring force. The spring assembly comprises a first spring arranged to be compressed by the piston throughout a first range of motion of the piston in a compression direction, and at least a second spring arranged to be compressed by the piston throughout a second range of motion that is smaller than and co-terminal with the first range of motion but to be uncompressed during an initial part of the first range of motion of the piston in the compression direction. | 07-15-2010 |
20100175377 | COOLING AN ELECTRICALLY CONTROLLED TURBOCHARGER - An electrically controlled turbocharger has a motor mounted on a shaft in a motor housing between a turbine and compressor. Oil is sprayed onto the motor stator to cool the stator. Flingers on the shaft fling oil back onto the stator. | 07-15-2010 |
20100180591 | SUPERCHARGED DIESEL ENGINES - A diesel engine comprises a plurality of cylinders ( | 07-22-2010 |
20100180592 | Turbocharger - A bearing housing of a rotor shaft support assembly of a turbocharger core mounts to and closes a forward end of a cavity that both receives and discharges exhaust gases of an internal combustion engine. A turbine rotor operatively coupled to a rotor shaft and a compressor rotor of an associated turbocharger rotor assembly rotates within a turbine rotor shroud portion of an associated turbine nozzle cartridge assembly, wherein the rotor shaft is rotationally supported by at least one bearing within the bearing housing. The turbine nozzle cartridge assembly provides for directing exhaust gases from the cavity through a peripheral inlet leading to a plurality of vanes between forward and aft walls, through the turbine rotor shroud portion, and then through a nozzle exhaust portion incorporating an external sealing surface on an aft portion thereof that cooperates with a sealing element where the exhaust gases are discharged from the cavity. | 07-22-2010 |
20100186406 | CONTROL DEVICE OF AN INTERNAL COMBUSTION ENGINE - An internal combustion engine control device includes: an internal combustion engine in which a cylinder includes a turbo-side exhaust valve that opens and closes an exhaust port that communicates with a turbo-side exhaust passageway that leads to a turbine's inlet opening of a turbosupercharger, and with a bypass-side exhaust valve that opens and closes an exhaust port that communicates with a bypass-side exhaust passageway that bypasses the turbine; a bypass control valve provided on the bypass-side exhaust passageway; an exhaust-side valve-operating device that opens and closes the turbo-side exhaust valve and the bypass-side exhaust valve in accordance with cam profiles that are provided, only one for each of the turbo-side exhaust valve and the bypass-side exhaust valve; and a control portion that controls degree of opening of the bypass control valve according to an operation status of the engine. | 07-29-2010 |
20100192569 | EXHAUST GAS SYSTEM AND METHOD FOR RECOVERING ENERGY - A system and method for recovering energy from gases of an internal combustion engine in conjunction with exhaust gas recirculation is described and illustrated, and in some embodiments includes an exhaust gas recirculation valve and an exhaust gas recirculation heat exchanger, with a working medium which undergoes a cyclic process being evaporated in the exhaust gas recirculation heat exchanger by hot exhaust gases, and with resulting steam being converted into mechanical or electrical energy which is available as additional energy. To improve heat recovery with little technical expenditure, an exhaust gas control valve can interact with the exhaust gas recirculation heat exchanger, and can control the mass flow of exhaust gases flowing through the exhaust gas recirculation heat exchanger constantly in all operating phases of the internal combustion engine, approximately in the vicinity of the performance limit of energy recovery. | 08-05-2010 |
20100199665 | Method for operating an internal combustion engine - The invention relates to a method for operating an internal combustion engine ( | 08-12-2010 |
20100212315 | CONTROL SYSTEM AND CONTROL METHOD FOR VEHICLE - A catalyst warm-up control is carried out in a state with a first exhaust valve closed and a second exhaust valve opened. After completion of the catalyst warm-up, if there is an acceleration request, exhaust gas temperature is acquired. If the exhaust gas temperature is equal to or lower than a predetermined value, the second exhaust valve is opened to an intermediate lift to thereby prevent an abrupt drop in exhaust gas temperature. If the exhaust gas temperature is higher than the predetermined value, the second exhaust valve is fully closed to thereby introduce the whole amount of exhaust gas to a turbine. A vehicle control device that achieves both prevention of catalyst deactivation and acceleration performance enhancement can be thus provided. | 08-26-2010 |
20100229550 | Internal combustion engine comprising an exhaust gas turbocharger - In an internal combustion engine comprising an exhaust gas turbocharger, including a turbine with at least two inlet passages arranged in the exhaust gas tract of the internal combustion engine, via which exhaust gas from the internal combustion engine can be supplied to a turbine wheel of the turbine, and a valve arrangement being arranged in to the exhaust gas tract to the turbocharger to control the supply of exhaust gas to the inlet passages of the turbine, a valve and turbine inlet passage configuration is selectable providing for a maximum braking power with low thermal load. | 09-16-2010 |
20100236237 | INTERNAL COMBUSTION ENGINE - A method for operating an internal combustion engine with compression ignition or with spark ignition as a function of an operating point. A specific residual exhaust-gas quantity in the combustion space is set for compression ignition. The internal combustion engine is operated as a function of the operating point by an outlet cam, by which a first outlet opening phase and a second outlet opening phase take place. The second outlet opening phase commences during an inlet opening phase. At a first operating point in a compression-ignition mode, a residual exhaust-gas quantity in a combustion space is dimensioned as a function of a valve interference set between the inlet and the outlet valve during a charge exchange. At a second operating point in the compression-ignition mode the residual exhaust-gas quantity in the combustion space is dimensioned as a function of a duration of the second outlet opening phase. | 09-23-2010 |
20100236238 | INTERNAL COMBUSTION ENGINE - An internal combustion engine with a plurality of cylinders, which are each assigned an inlet valve, an outlet valve and a combustion space, with an inlet camshaft connected to a camshaft adjuster, with an outlet camshaft connected to a camshaft adjuster, with a switchable inlet-valve drive which has a plurality of inlet cams for actuating the respective inlet valve, with a switchable outlet-valve drive which has a plurality of outlet cams for actuating the respective outlet valve, and with an exhaust-gas system. The internal combustion engine is operated with compression ignition or with spark ignition as a function of the operating point. For this purpose, for the compression ignition, a specific residual exhaust-gas quantity is set in the combustion space. Furthermore, the internal combustion engine is operated as a function of the operating point by means of an outlet cam. | 09-23-2010 |
20100242470 | MODEL-BASED CONTROL OF AIRPATH PRESSURE LIMITS BY MODULATING A TURBO CHARGER BY-PASS VALVE AND A VARIABLE-GEOMETRY TURBINE - Simultaneous or independent control of a by-pass valve and a variable-geometry forced induction component on a combustion engine is based on operational parameters measured by various sensors provided as inputs to a control module. Sudden loss of power due to low turbine efficiencies is prevented during transitions between operating conditions of engine speed and load. Excessive peak cylinder pressures are also prevented by controlling engine boost pressure to a permitted limit at high engine speed and load. | 09-30-2010 |
20100242471 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - A control apparatus for an internal combustion engine, which can generate exhaust pressure pulsation at an early period while suppressing the degradation of volumetric efficiency, when a request to enhance the exhaust pressure pulsation is made in the internal combustion engine which includes a variable valve mechanism that makes variable a valve overlap period, and a variable nozzle type turbocharger. | 09-30-2010 |
20100251709 | Flow-optimized bypass for turbo engines - A charging device (supercharger) for internal combustion engines, having at least one turbine part. A mass stream of exhaust gas flows into this via an inflow region, from which a bypass duct branches off for bypassing the at least one turbine part. The bypass duct opens out into a turbine outlet duct at an outlet location in back of the turbine part. The bypass duct is opened or closed either by a first control element situated in the inflow region at the inlet of the bypass duct or by a second control element at the outlet of the bypass duct leading into the turbine outlet duct. | 10-07-2010 |
20100263370 | MULTI-STAGE TURBOCHARGER REGULATION APPARATUS - A multi-stage turbocharger regulation apparatus includes a casing which has a housing chamber, a driving membrane and at least one floating membrane. The housing chamber has at least one blocking portion. The linkage bar runs through the bottom surface of the casing into the housing chamber to couple with a spring. The driving membrane pushes the linkage bar and also pushes the spring between the driving membrane and the bottom surface of the casing. The floating membrane has at least one opening. The driving membrane is pushed by the elastic force of the spring to block the opening. The floating membrane is compressed by a control gas to drive the driving membrane to push the spring and the linkage bar, or force the driving membrane to separate from the floating membrane to push the linkage bar and the spring. Thereby the wastegate can be opened or closed. | 10-21-2010 |
20100263371 | TURBINE INTAKE PRESSURE RELEASE STRUCTURE - A turbine intake pressure release structure to control pressure release between a throttle and a first turbine boosted pressure outlet includes a pressure release valve which has a first pressure orifice, a second pressure orifice and a housing chamber, at least one controller which has a pressure detection end and a driven portion and a switch duct which has a first end opening, a second end opening and a third end opening. The first end opening is connected to a third turbine boosted pressure outlet. The second end opening leads to the atmosphere. The third end opening is connected to the second pressure orifice. The driven portion runs through the switch duct to close the second end opening through the driven portion drive a membrane to a first position or closes the first end opening through the driven portion to drive the membrane to a second position. | 10-21-2010 |
20100263372 | TWO-STAGE SUPERCHARGING SYSTEM WITH EXHAUST GAS PURIFICATION DEVICE FOR INTERNAL-COMBUSTION ENGINE AND METHOD FOR CONTROLLING SAME - The present invention relates to a two-stage supercharging system for an internal-combustion engine ( | 10-21-2010 |
20100287932 | INTERNAL-COMBUSTION-ENGINE CONTROL APPARATUS - An electrically assisted turbocharger is provided; in the case where an internal combustion engine rotates at low rotation speed, the output thereof is secured by adjusting the flow rate in a recirculation path while supercharging with electrically assisting torque, and in the case where the internal combustion engine rotates at high rotation speed, electrically assisting torque compensates the inertia of at least a turbine wheel, a compressor impeller, and a motor; as a result, not only unnecessary consumption of electric energy is avoided, but also desired supercharging can be performed by the electrically assisted turbocharger. | 11-18-2010 |
20100293942 | PASSIVELY CONTROLLED TURBOCHARGER - A flow control device for a turbocharger, the flow control device comprising a variably restricting flow restrictor for restricting flow in a turbocharger inlet by a variable amount, the flow control device being arranged such that the flow restrictor position varies flow restriction in response to force acting on a surface of the flow restrictor caused by a pressure pulse in a flow direction, the flow restrictor being biased in a direction opposed to the flow direction. | 11-25-2010 |
20100293943 | EXHAUST POWER TURBINE DRIVEN EGR PUMP FOR DIESEL ENGINES - A power plant includes an engine configured to receive charge air and produce exhaust. A first turbo machine is configured to be driven by the exhaust and drive a compressor that receives air. The compressor is configured to produce the charge air. A second turbo machine is configured to receive a portion of the exhaust and rotationally drive a pump in response thereto. High temperature and low temperature EGR heat exchangers are arranged in the exhaust gas recirculation passage serially relative to one another upstream from the pump. A heat exchanger arranged in the exhaust gas recirculation passage upstream from the pump. A water separator is arranged in the exhaust gas recirculation passage fluidly between the heat exchanger and the pump. An EGR catalyst is arranged in the exhaust gas recirculation passage upstream from the heat exchanger. | 11-25-2010 |
20100300087 | SYSTEM AND METHOD FOR MODE TRANSITION FOR A TWO-STAGE SERIES SEQUENTIAL TURBOCHARGER - A method of controlling a series turbocharger for an engine and a control system for the same includes a boost determination module determining a first predicted boost pressure for a first position of a variable geometry turbine when a high pressure turbine bypass valve is in an open position. The boost determination module determines a second boost pressure for a second position of the variable geometry when the high pressure turbine bypass valve is in the open position. A desired boost module determines a desired boost. A comparison module determines when the desired boost signal is between the first predicted boost pressure and the second predicted boost pressure. A bypass valve control module closes the high pressure turbine bypass valve when the desired boost signal is between the first predicted boost pressure and the second predicted boost pressure. | 12-02-2010 |
20100300088 | METHOD OF CONTROLLING A TURBOCHARGER - Another embodiment of the invention includes a method of controlling a turbocharger to achieve at least one of: produce air in excess of that required to operate a combustion engine at a specific power demand; control the flow of gas through the turbine; or control the turbine speed independent of boost pressure required to avoid specific speeds. | 12-02-2010 |
20100300089 | METHOD FOR REDUCING DIESEL ENGINE EMISSIONS, AND DIESEL ENGINE - A method for controlling emissions during low-load diesel engine operation is provided. The engine includes at least one piston movable in a cylinder between a top dead center and a bottom dead center position, a fuel injector for injecting fuel into the cylinder, and a variable geometry turbine through which exhaust from the engine is adapted to flow. According to the method, the engine is operated at low load, NOx emissions are measured at an exhaust of the engine, and a variable geometry turbine inlet opening size is controlled responsive to NOx emissions measurements so that NOx emission levels are controlled. | 12-02-2010 |
20100300090 | Method for controlling an engine braking device of an internal combustion engine and internal combustion engine for a motor vehicle - In an internal combustion engine comprising an exhaust gas turbocharger, which includes a compressor with a compressor wheel arranged in an inlet tract of the internal combustion engine and a turbine with a turbine wheel coupled rotationally to the compressor wheel and arranged in an at least two-path exhaust gas tract of which is connected to an exhaust gas guide section of the turbine including at least a first spiral channel coupled to the first exhaust path and a second spiral channel coupled to a second exhaust gas path, two guide vane elements are arranged upstream of the turbine wheel and downstream of respective spiral channels which are formed corresponding to a first degree of asymmetry A | 12-02-2010 |
20100313561 | TURBOCHARGED ENGINE FOR VEHICLE - Two turbochargers are arranged vertically near a one side of a crank-shaft direction at a one-side face of an engine body so that the large-size turbocharger is located above the small-sized turbocharger, and an exhaust-gas purification device is arranged an open space made on the other side of the crank-shaft direction so that its exhaust inlet is located above and its outlet is located below. Accordingly, the turbochargers and the exhaust-gas purification device can be arranged compactly and the layout of some devices around the engine can be facilitated. | 12-16-2010 |
20110000208 | Multi-stage turbocharger system - A turbocharger system comprises a first relatively small turbocharger and a second relatively large turbocharger connected in series and an exhaust gas flow control valve. The exhaust control valve has an inlet port communicating with the exhaust gas flow upstream of the first turbine a first outlet port communicating with the exhaust flow downstream of said first turbine but upstream of said second turbine, and a second outlet port communicating with the exhaust flow downstream of said second turbine. The valve is operable to selectively permit or block flow through the first and second outlet ports. | 01-06-2011 |
20110000209 | TURBOCHARGER COMPRISING AN ACTUATOR FOR OPENING AND CLOSING A WASTEGATE DUCT - A turbocharger has a wastegate duct that can be opened and closed by way of an actuator. The actuator encompasses a closing element that can be pivoted into the wastegate duct to close the same. This allows the required closing force, and hence also the size of the required actuator, to be reduced. | 01-06-2011 |
20110005222 | EXHAUST-BYPASS VALVE OF TURBOCHARGER - An exhaust-bypass valve capable of reducing wear of a rotating shaft to prevent controllability from deteriorating is provided. An exhaust-bypass valve ( | 01-13-2011 |
20110011082 | Emissions Control System Having External Turbocharger Wastegate and Integrated Oxidation Catalyst - A method and system for reducing undesired exhaust emissions during cold start of a turbocharger-equipped internal combustion engine. A bypass line in the engine compartment has a bypass valve that permits exhaust to be bypassed around the turbocharger's turbine during cold start. An oxidation catalyst is closely coupled to the bypass valve. | 01-20-2011 |
20110011083 | SELF REGULATING WASTE GATE - A self-regulating wastegate valve actuator for dynamically regulating a wastegate valve in a turbocharged internal combustion engine. The wastegate valve actuator regulates and maintains a desired pressure differential across a throttle valve with minimal controlling elements by controlling a wastegate valve in response to the pressure differential generated across the throttle valve. | 01-20-2011 |
20110016862 | SYSTEM AND METHOD FOR CONTROLLING A TWO-STAGE SERIES SEQUENTIAL TURBOCHARGER USING BYPASS VALVE LEAKAGE CONTROL - A method of controlling a turbocharger for an engine and a control system for the same includes a variable nozzle turbine control module operating a variable nozzle turbine of a high pressure turbocharger closed loop in a first load-engine speed region. The system also includes a high pressure turbine bypass valve control module operating a high pressure turbine bypass valve in a closed position in a first load-engine speed region. The variable nozzle turbine control module operates a variable nozzle turbine closed loop in a second load-engine speed region between the first load-speed region and a third load speed region. The high pressure turbine bypass valve module operates the high pressure turbine bypass valve in a transient region in the second load-engine speed region. The variable nozzle turbine control module operates the variable nozzle turbine open loop. The high pressure turbine bypass valve control module operates a high pressure turbine bypass valve in an open position in a third load-engine speed region. | 01-27-2011 |
20110030369 | PNEUMATIC ACTUATOR - A pneumatic actuator comprises a containment jacket ( | 02-10-2011 |
20110056199 | SYSTEM AND METHOD FOR OPERATING A TURBOCHARGED ENGINE - A method includes substantially eliminating surge of a compressor and reducing specific fuel consumption and exhaust emissions of an engine by adjusting exhaust flow through an exhaust gas recirculation system, by adjusting airflow through a compressor recirculation valve, by adjusting fuel injection timing, or by adjusting a combination thereof in response to variance in a plurality of parameters. The parameters include quantity of exhaust emissions, a maximum in-cylinder pressure of the engine, an area ratio of an exhaust gas recirculation mixer of the exhaust gas recirculation system, estimated or sensed compressor surge, engine load, altitude of operation, or combinations of the parameters thereof. | 03-10-2011 |
20110067395 | METHOD OF CONTROLLING AN ENGINE DURING TRANSIENT OPERATING CONDITIONS - A method of controlling an engine having a mechanically driven supercharger supplying a flow of air to the engine includes defining a steady state operating condition in which the engine normally operates within efficiently. An engine parameter is monitored to determine if the engine is operating within the steady state operating condition, or outside the steady state operating condition in a transient operating condition. If the engine is operating outside the steady state operating condition in the transient operating condition, the flow of air from the supercharger is adjusted to maintain a fuel/air mixture to within a pre-determined ratio prior to increasing a fuel injection rate to the engine to minimize soot emissions from the engine during operation of the engine in the transient operating condition. | 03-24-2011 |
20110067396 | PRESSURE ESTIMATION SYSTEMS AND METHODS - An intake control system comprises an estimation module and a turbocharger control module. The estimation module receives one of a first pressure within an intake manifold measured by a manifold pressure sensor and a second pressure measured by a pressure sensor at a location between a compressed air charge cooler and a throttle valve. The estimation module estimates the other one of the first and second pressures based on the received one of the first and second pressures. The turbocharger control module controls output of a turbocharger based on the estimate of the other one of the first and second pressures. | 03-24-2011 |
20110067397 | Internal combustion engine with an exhaust gas turbocharger - In an internal combustion engine for a motor vehicle having an exhaust gas turbo-charger comprising a compressor arranged in an intake tract of the internal combustion engine and a turbine arranged in an exhaust gas tract of the internal combustion engine, with a turbine wheel disposed the turbine housing, an adjustment device is provided by means of which a spiral inlet cross section of a spiral turbine inlet channel and a nozzle cross section of the spiral inlet channel to the turbine wheel are jointly adjustable by a common adjustment device. The invention further relates to an exhaust gas turbocharger, a motor vehicle having an internal combustion engine and a method for operating an internal combustion engine having an exhaust gas turbocharger. | 03-24-2011 |
20110079008 | Strategy For Control Of Recirculated Exhaust Gas To Null Turbocharger Boost Error - A method for coordinating control of exhaust gas recirculation ( | 04-07-2011 |
20110088388 | METHOD FOR CONTROLLING WITH ADAPTIVITY A WASTEGATE IN A TURBOCHARGED INTERNAL COMBUSTION ENGINE - A method for controlling the wastegate in a turbocharged internal combustion engine including the steps of: determining, during a design phase, a control law which provides an objective opening of a controlling actuator of the wastegate according to the supercharging pressure; determining an objective supercharging pressure; measuring an actual supercharging pressure; determining a first open loop contribution of an objective position of a controlling actuator of the wastegate by means of the control law and according to the objective supercharging pressure; determining a second closed loop contribution of the objective position of the controlling actuator of the wastegate; and calculating the objective position of the controlling actuator of the wastegate by adding the two contributions. | 04-21-2011 |
20110088389 | METHOD FOR CONTROLLING A WASTEGATE IN A TURBOCHARGED INTERNAL COMBUSTION ENGINE - A method for controlling the wastegate in a turbocharged internal combustion engine including the steps of: determining, during a design phase, a control law which provides an objective opening of a controlling actuator of the wastegate according to the supercharging pressure; determining an objective supercharging pressure; measuring an actual supercharging pressure; determining a first open loop contribution of an objective position of a controlling actuator of the wastegate by means of the control law and according to the objective supercharging pressure; determining a second closed loop contribution of the objective position of the controlling actuator of the wastegate; and calculating the objective position of the controlling actuator of the wastegate by adding the two contributions. | 04-21-2011 |
20110088390 | METHOD FOR ZONE CONTROLLING A WASTEGATE IN A TURBOCHARGED INTERNAL COMBUSTION ENGINE - A method for controlling the wastegate in a turbocharged internal combustion engine including the steps of: determining, during a design phase, a control law which provides an objective opening of a controlling actuator of the wastegate according to the supercharging pressure; determining an objective supercharging pressure; measuring an actual supercharging pressure; determining a first open loop contribution of an objective position of a controlling actuator of the wastegate by means of the control law and according to the objective supercharging pressure; determining a second closed loop contribution of the objective position of the controlling actuator of the wastegate; and calculating the objective position of the controlling actuator of the wastegate by adding the two contributions. | 04-21-2011 |
20110088391 | Exhaust gas turbocharger for an internal combustion engine of a motor vehicle - In an exhaust gas turbocharger for an internal combustion engine of a motor vehicle with a turbine comprising a turbine housing with at least a first and a second spiral channel, each being coupled to an exhaust gas line of an exhaust gas tract of the internal combustion engine for conducting exhaust gas to a turbine wheel arranged within the turbine housing and driving a compressor wheel of a compressor of the exhaust gas turbocharger, an area ratio Q | 04-21-2011 |
20110094220 | Turbo-charger surge detection - A method of turbo-charger surge detection may include the steps of measuring a rate of air flow through a turbo-charger compressor, measuring a temperature of the air flow, calculating a standard mass flow rate of the air flow at the rate and the temperature, measuring a pressure ratio across the turbo-charger compressor, calculating a surge mass flow rate at a surge line of the compressor at the pressure ratio, comparing the standard mass flow rate to the surge mass flow rate, and reducing an EGR flow or reducing the pressure ratio by opening a vane of the compressor if the standard mass flow rate is lower than the surge mass flow rate. | 04-28-2011 |
20110094221 | TURBOCHARGER CONTROL SYSTEMS AND METHODS FOR IMPROVED TRANSIENT PERFORMANCE - A turbocharger control system for a high-pressure turbocharger and a low-pressure turbocharger includes a turbo mode determination module and a transition control module. The turbo mode determination module determines a transition from a dual turbo mode to a single turbo mode. The high-pressure turbocharger is active in the dual turbo mode and idle in the single turbo mode. The transition control module determines a turbine efficiency of the high-pressure turbocharger and controls the high-pressure turbocharger during the transition based on a predetermined maximum turbine efficiency equation. | 04-28-2011 |
20110094222 | Turbine regulating valve system - A regulated two-stage turbocharger system is described. The turbocharger system includes high-pressure and low-pressure turbocharger units in communication with one another. The turbocharger system includes a valve system having valve members that are independently controllable so as to selectively control the gas flow into the turbine portions of the high-pressure turbocharger and the low-pressure turbocharger units. The valve members are asymmetric, e.g., they possess differing areas (e.g., perimeters, diameters and/or the like) with respect to one another. | 04-28-2011 |
20110099997 | METHOD OF STATIONARY REGENERATION OF AN ENGINE EXHAUST PARTICULATE FILTER - A method of controlling an engine exhaust temperature and an exhaust mass flow rate for stationary regeneration of an engine exhaust gas particulate filter of an engine. The method implements a feed forward control that sets an EGR valve position and an injection timing associated with the engine, and a sets an engine speed. The method implements a feed back control that sets a turbo waste gate position and an intake throttle position associated with the engine. | 05-05-2011 |
20110099998 | TURBINE ASSEMBLY FOR A TURBOCHARGER, HAVING TWO ASYMMETRIC VOLUTES THAT ARE SEQUENTIALLY ACTIVATED, AND ASSOCIATED METHOD - A turbine assembly for an exhaust gas turbocharger has separate first and second volutes that are sequentially activated via a valve that receives exhaust gases from an engine. In a first position of the valve, only the first volute receives exhaust gas; in a second position, both volutes receive exhaust gases. In a third position, a bypass passage is also opened so that some exhaust gas bypasses the turbine wheel. Unlike conventional twin-scroll turbines, each volute receives exhaust gases from all engine cylinders, and the first volute feeds gas into the B-width portion of the wheel, while the second volute feeds gas into the wheel after the contour portion. | 05-05-2011 |
20110099999 | METHOD FOR CALIBRATING PNEUMATIC ACTUATORS AND CALIBRATED ACTUATOR OBTAINABLE WITH THIS METHOD - A method for calibrating pneumatic actuators comprising a containment structure ( | 05-05-2011 |
20110100000 | VARIABLE GEOMETRY TURBINE - A variable geometry turbine comprises a turbine wheel supported in a housing for rotation about a turbine axis. The housing defines an annular inlet passage around an inducer portion of the turbine wheel and an outlet passage including a tubular wall disposed around an exducer portion of the turbine wheel; the inlet passage is defined between first and second radial inlet surfaces, one of the inlet surfaces being defined by a moveable wall member and the other of the inlet surfaces being defined by a facing wall of said housing. The moveable wall member is moveable relative to the facing wall of the housing along the turbine axis to vary the size of the inlet passageway. The moveable wall member is displaceably mounted within an annular cavity defined between the tubular wall and a surrounding wall of the housing. | 05-05-2011 |
20110113773 | DUAL-LOOP CONTROL SYSTEMS AND METHODS FOR A SEQUENTIAL TURBOCHARGER - A system for a sequential turbocharger includes a loop control module, a set-point module, and a loop operation module. The loop control module generates a loop control mode signal based on an engine speed signal and an engine load signal. The loop control mode signal indicates one of a single-loop control mode and a dual-loop control mode. The set-point selection module determines at least one of a boost pressure set-point value and an exhaust pressure set-point value based on the loop control mode signal, the engine speed signal, and an engine torque signal. The loop operation module operates at least one of a variable geometry turbine and a bypass valve of the sequential turbocharger during the single-loop control mode based on the boost pressure set-point value, and during the dual-loop control mode based on the boost pressure set-point value and the exhaust pressure set-point value. | 05-19-2011 |
20110120123 | LOW PRESSURE TURBINE WASTE GATE FOR DIESEL ENGINE HAVING TWO STAGE TURBOCHARGER - A diesel engine, having a two stage turbine for driving a two stage intake air compressor, includes a second stage bypass path arranged around the second stage turbine. The second stage bypass path includes a second stage control valve to open or close the second stage bypass path. Also, a first stage bypass path around the first stage turbine can be used along with the second stage bypass path. An engine control is configured to open or close the first and/or the second stage bypass paths during an operator command for vehicle acceleration. When the engine includes a DOC and a DPF, the engine control can open the second stage bypass path in order to increase passive regeneration of the DPF. | 05-26-2011 |
20110131975 | Hybrid High-Pressure Low-Pressure EGR System - An example system for inducting air into an engine includes a compressor and a turbine mechanically coupled to the compressor and driven by expanding engine exhaust. The system also includes a first conduit network configured to route some engine exhaust from a take-off point downstream of the turbine to a mixing point upstream of the compressor, and, a second conduit network configured to route some engine exhaust from a take-off point upstream of the turbine to a mixing point downstream of the compressor. The first and second conduit networks in the system have a shared conduit and a control valve configured to adjust an amount of engine exhaust flowing through the first conduit network and to adjust an amount of engine exhaust flowing through the second conduit network. The system also includes a flow sensor coupled in the shared conduit. | 06-09-2011 |
20110131976 | Exhaust gas turbocharger for an internal combustion engine - In an exhaust gas turbocharger for an internal combustion engine having a housing comprising an exhaust gas guide segment, an air guide segment, and a bearing segment, and a rotor assembly comprising a turbine wheel having a plurality of blades, a compressor wheel, and a shaft rotationally fixing the turbine wheel ( | 06-09-2011 |
20110131977 | LEVER PLATE IN VGS TYPE TURBOCHARGER AND METHOD OF MANUFACTURING THE SAME - An object of the present invention is to provide a novel method of manufacturing a lever plate that is made of a material having a relatively small thickness but nonetheless has an engaging protrusion having an adequate thickness and an adequate height. | 06-09-2011 |
20110131978 | EXHAUST GAS PURIFYING APPARATUS FOR SUPERCHARGER-EQUIPPED INTERNAL COMBUSTION ENGINE - An exhaust gas purifying apparatus for a supercharger-equipped internal combustion engine, which can favorably combine the realization of the prevention of an excessive back pressure rise and the securement of an exhaust gas emission performance, is provided. A turbocharger which includes, in an exhaust passage, a turbine driven by the exhaust energy of an internal combustion engine is provided. In the exhaust passage, a first front stage catalyst and a second front stage catalyst are provided in series in order from the upstream side. A first exhaust bypass passage which bypasses the turbine and a second exhaust bypass passage which bypasses the turbine and the first front stage catalyst are provided. A first waste gate valve and a second waste gate valve are provided which play roles in opening and closing the first exhaust bypass passage and the second exhaust bypass passage, respectively. | 06-09-2011 |
20110138804 | METHOD FOR OPERATING AN ENGINE TO ADJUST TURBOCHARGER PERFORMANCE CHARACTERISTICS - A method to operate an electronically controlled internal combustion engine having an electronic central unit with memory a turbocharger and exhaust gas recirculation valve to determine performance characteristics of said variable geometric turbocharger. | 06-16-2011 |
20110138805 | CONJUGATE CURVE PROFILES FOR VANE ARMS, MAIN-ARMS, AND UNISON RINGS - A turbocharger assembly comprises a variable-vane assembly. The variable-vane assembly includes a unison ring with vane arms and/or a main-arm which adjust the setting angle of vanes. Vane arm-engaging elements and main-arm-engaging elements in the unison ring engage ends of the vane arms and the main-arm, respectively. Each vane arm-engaging element comprises an inner contact surface that engages an outer contact surface of the respective vane arm. The main-arm-engaging element comprises an inner actuation surface that engages an outer actuation surface of the main-arm. The inner contact surface and the outer contact surface and/or the inner actuation surface and the outer actuation surface may comprise conjugate curve profiles, such as involute curve profiles based on the involute of a circle. Use of conjugate curve profiles may result in rolling movement between the unison ring and vane arms and/or main arm, which may reduce friction occurring during pivoting of the vanes. | 06-16-2011 |
20110146267 | Methods and Systems for Emission System Control - Methods and systems are provided for operating an engine including an emission control system, the emission control system comprising a catalyst downstream of a turbine of a boosting device and a reductant injector upstream of the turbine. In one example, the method comprises injecting reductant into exhaust upstream of the turbine, mixing the injected reductant with exhaust gas via the turbine, and delivering the mixed reductant to the catalyst. | 06-23-2011 |
20110146268 | Methods and Systems for Emission System Control - Methods and systems are provided for controlling an engine in a vehicle, the engine having a turbocharger, and a particulate filter upstream of a turbocharger turbine. In one example, the method comprises, under selected boosted operating conditions, injecting a reductant upstream of the filter during an exhaust stroke to generate an exothermic reaction at the filter. | 06-23-2011 |
20110146269 | Methods and Systems for Emission System Control - Methods and systems are provided for operating an engine including an SCR catalyst downstream of an exhaust turbine and a particulate filter upstream of the turbine. In one example, the method comprises, adjusting a turbine wastegate to adjust a catalyst temperature to a desired catalyst temperature. | 06-23-2011 |
20110154819 | SYSTEM FOR RECOVERING ENGINE EXHAUST ENERGY - A system for recovering engine exhaust energy is provided. The system includes an exhaust system including a first exhaust branch and a second exhaust branch. The system includes a first and a second group of exhaust valves associated with a plurality of engine cylinders. The system also includes an energy recovering assembly. The system further includes a control mechanism configured to control at least one of the first and second groups of exhaust valves according to a determined timing strategy based on at least one engine operating parameter. | 06-30-2011 |
20110167815 | METHOD AND SYSTEM FOR TURBOCHARGING AN ENGINE - A method for improving operation of a turbocharged engine is presented. In one embodiment, the method may reduce engine emissions and improve engine efficiency during an engine start. | 07-14-2011 |
20110167816 | APPARATUS FOR DETERMINING AN ABNORMALITY OF A CONTROL VALVE OF AN INTERNAL COMBUSTION ENGINE - The present invention is applied to an internal combustion engine comprising a first supercharger | 07-14-2011 |
20110167817 | TURBOCHARGER COMPRISING A VARIABLE NOZZLE DEVICE - A turbocharger comprises a variable nozzle device and an exhaust housing being mechanically and/or thermally decoupled from the variable nozzle device. Additional optional advantageous features are provided, including various axial and radial clearances and various sealing elements. | 07-14-2011 |
20110173972 | Internal Combustion Engine Cylinder Head With Integral Exhaust Ducting And Turbocharger Housing - An internal combustion engine cylinder head is based upon a one-piece structure including a number of exhaust runners, an exhaust collector, and a turbocharger exhaust turbine housing, all formed as one-piece. | 07-21-2011 |
20110173973 | TURBINE INLET FLOW MODULATOR - A turbine ( | 07-21-2011 |
20110173974 | VARIABLE FLOW WASTEGATE - A wastegate for a turbocharger wherein the valve is provided with a horn to provide a more progressive, optimally near linear, curve of turbocharger boost-to-valve opening than possible with the typical flat wastegate valve. The addition of a three-dimensional horn in the flow path is a far more cost-effective solution to acquire linear flow than an approach involving very finite, accurate control of the valve position. | 07-21-2011 |
20110192161 | Engine - An engine ( | 08-11-2011 |
20110197580 | SYSTEM AND METHOD FOR ESTIMATING AIRFLOW RESTRICTION OF AN ENGINE AIR FILTER - A control system for an engine that includes a turbocharger includes a restriction estimation module and an engine protection module. The restriction estimation module estimates restriction of airflow through an air filter of the engine based on a comparison between measured and modeled temperatures at an outlet of a compressor of the turbocharger. The engine protection module, based on the estimated airflow restriction, at least one of controls turbocharger boost, controls turbocharger airflow, controls a fueling rate of the engine, and generates a warning signal for a driver of a vehicle. | 08-18-2011 |
20110197581 | ACTUATOR - An actuator includes a transmission element configured to transmit a mechanical regulating signal, a guide element and a transmission element mounted on the guide element. The guide element has an inner surface facing the transmission element. The transmission element has an outer surface facing the guide element, wherein the guide element includes at least one radial groove. | 08-18-2011 |
20110219768 | Air Cleaner, and Engine Control System - An air cleaner includes a case in which an inner cylindrical filter and an outer cylindrical filter are housed, the case having a case body that defines an opening end surface closed by a cover member. The case includes an air inlet provided to an outer circumference of the case body for supplying outside air and an exhaust outlet provided to a bottom of the case body at a downstream side in an air-flowing direction for discharging the air supplied through the air inlet and filtered through the inner cylindrical filter and the outer cylindrical filter. A mass flow rate sensor is provided in the exhaust outlet to measure the flow rate of the air. A flow straightening grid is provided at the upstream side of the mass flow rate sensor to straighten the flow of the air. | 09-15-2011 |
20110225967 | TURBOCHARGER CONTROL - Various systems and methods for controlling a turbocharger of an engine via a wastegate are described. In one example, the wastegate is adjusted according to a difference between the boost pressure and the atmospheric pressure. In this manner, the interdependency between controlling the boost pressure and using the boost pressure to actuate the wastegate in a boost-based wastegate configuration may be reduced. | 09-22-2011 |
20110225968 | INTERNAL COMBUSTION ENGINE CONTROL APPARATUS - An object of this invention is to prevent a diaphragm of an actuator from being damaged by a high temperature, and improve a heat resistance property of the actuator. A valve actuator includes a communication hole that allows communication between a high pressure chamber and a low pressure chamber that are separated by a diaphragm, and a normally closed reed valve that opens and closes the communication hole. When a temperature of the valve actuator is less than a pressure release temperature, an ECU changes a differential pressure between the high pressure chamber and low pressure chamber by means of a pressure regulating valve, to control the valve actuator. This control is executed within a range of differential pressures at which the reed valve does not open. If the temperature exceeds the pressure release temperature, a differential pressure at which the reed valve opens is realized by the pressure regulating valve. Thus, pressure is released from the high pressure chamber to the low pressure chamber at a high temperature, and the diaphragm can be protected. | 09-22-2011 |
20110239644 | CLOSELY-COUPLED EXHAUST AFTERTREATMENT DEVICE FOR A TURBOCHARGED INTERNAL COMBUSTION ENGINE - An exhaust aftertreatment system for an internal combustion engine includes an exhaust manifold that is configured for fluid communication with an exhaust port to receive an exhaust gas flow. It also includes a primary turbocharger having a turbine inlet configured for fluid communication with the exhaust manifold to receive the exhaust gas flow and pass it to an outlet. It also includes an exhaust bypass valve that is operable for movement between an open position and a closed position, the exhaust bypass valve having an inlet that is configured for fluid communication with the exhaust manifold in the open position to receive the exhaust gas flow and pass it to an outlet. Still further, it includes an exhaust aftertreatment device configured for thermal communication with the exhaust manifold, the device having an inlet configured for fluid communication with the turbine and bypass outlets to receive the exhaust gas flows therefrom. | 10-06-2011 |
20110239645 | CONTROL APPARATUS FOR TURBOCHARGED DIESEL ENGINE - Disclosed is a control apparatus for a turbocharged diesel engine. The control apparatus comprises an engine start controller ( | 10-06-2011 |
20110247326 | Waste Exhaust Energy Recovery from an Engine - An aspect encompasses an engine system wherein a turbocharger is coupled to an internal combustion engine to receive exhaust from the engine and to provide compressed air for combustion to the engine. The turbocharger is driven to generate the compressed air by the exhaust from the engine. An expander/generator is coupled to the turbocharger to receive at least a portion of the compressed air and generate electricity by expanding the compressed air. | 10-13-2011 |
20110252786 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - There is provided a control device for an internal combustion engine capable of suppressing trouble such that the gas having an EGR ratio higher than necessary is sucked with the opening of an intake air bypass passage. A supercharger having a compressor is provided in an intake air passage of an internal combustion engine. An EGR passage and an EGR valve are provided. The intake air bypass passage connects the upstream side of the compressor in the intake air passage to the downstream side of the compressor in the intake air passage. The intake air bypass passage is provided with an air bypass valve (ABV). The EGR valve is closed simultaneously with the operation of the ABV. | 10-20-2011 |
20110252787 | GAS SEALING ARRANGEMENT FOR A VARIABLE GEOMETRY TURBOCHARGER - A piston ring for sealing gas flow past a sliding cylinder is provided at the interface of the turbine and bearing housings, and is axially close to the turbine inlet. A V-band or similar connection joins the turbine and bearing housings but it is axially further away from the turbine inlet. The piston ring is provided with a spacer element between it and the bearing housing that is at least partially thermally decoupled from the bearing housing. | 10-20-2011 |
20110252788 | Bypass Fluid System For Exhaust Aftertreatment - An exhaust treatment system for a vehicle includes an intake conduit adapted to receive pressurized intake air provided from a turbocharger compressor and supply the pressurized intake air to an internal combustion engine. An uninterrupted bypass conduit bypasses the internal combustion engine and includes upstream and downstream ends. The upstream end branches from the intake conduit. An exhaust conduit includes an upstream end adapted to receive exhaust from the internal combustion engine. An upstream end of a mixing tube is fixed to and in fluid communication with a downstream end of the exhaust conduit and the downstream end of the bypass conduit at a tubular joint, wherein the exhaust and the pressurized intake air are mixed within the mixing tube. An exhaust treatment device is in fluid communication with a downstream end of the mixing tube. | 10-20-2011 |
20110265472 | Nested Valve and Method of Control - A valve in an engine exhaust system is disclosed. The valve can improve engine operation and reduce engine component degradation during cold engine starting. The valve may also be configured to provide different levels of restriction to exhaust gases flowing to a turbocharger turbine. | 11-03-2011 |
20110271672 | Compressed-Air-Assisted Turbocharger System for Internal Combustion Engine - A turbocharger system for an internal combustion engine that powers a vehicle having a pressure vessel storing pressurized air. The turbocharger system comprises a turbocharger and a valve system. The system is configured such that the air intake system of the internal combustion engine can be supplied with air at super-atmospheric pressure either from the compressor of the turbocharger or from the pressure vessel. When the pressure vessel is supplying the intake system, compressed air from the compressor is recirculated back to the air inlet of the compressor so as to help prevent a surge condition in the compressor. | 11-10-2011 |
20110271673 | EXHAUST SYSTEM FOR A COMBUSTION ENGINE - An exhaust system for interaction with a combustion engine, includes a manifold ( | 11-10-2011 |
20110283695 | METHOD FOR MAXIMIZING TRANSIENT VARIABLE GEOMETRY TURBINE RESPONSE IN AN INTERNAL COMBUSTION ENGINE - A method of operating a variable geometry turbine (VTG) during transient operations for maximum response by determining the VTG area at the balance condition of the pressure ratio and efficiency curves for the variable geometry turbine to achieve maximum power. The method includes measurements of turbine inlet pressure, turbine outlet pressure, turbine rpm, and other parameters used to measure turbine mass flow. | 11-24-2011 |
20110283696 | PARALLEL SEQUENTIAL TURBOCHARGER ARCHITECTURE USING ENGINE CYLINDER VARIABLE VALVE LIFT SYSTEM - A valve and cylinder head assembly, configured to fit a bank of cylinders of an internal combustion engine, can include a first exhaust valve for each corresponding cylinder of the bank of cylinders; a second exhaust valve for each corresponding cylinder of the bank of cylinders; a first exhaust port for each corresponding cylinder of the bank of cylinders, the first exhaust port configured to direct flow of exhaust to a first manifold in fluid communication with a first turbocharger; and a second exhaust port for each corresponding cylinder of the bank of cylinders, the second exhaust port configured to direct flow of exhaust to a second manifold in fluid communication with a second turbocharger; where the shape of the first exhaust ports differs from the shape of the second exhaust ports; where each of the first exhaust valves controls flow of exhaust to a respective one of the first exhaust ports; and where each of the second exhaust valves controls flow of exhaust to a respective one of the second exhaust ports. Various other devices, assemblies, controllers, etc., are also disclosed. | 11-24-2011 |
20110289914 | UPSTREAM EGR RESTRICTION - A power system comprising an engine that produces exhaust and includes an exhaust gas recirculation (EGR) system. The EGR system includes an EGR conduit routing an exhaust flow back to the engine, a restriction valve disposed in the EGR conduit, and a control valve disposed in the EGR conduit in series with the restriction valve. | 12-01-2011 |
20110296829 | VARIABLE GEOMETRY EXHAUST TURBOCHARGER - A variable geometry exhaust turbocharger, wherein bolts which fasten a variable nozzle mechanism do not loosen. A variable geometry exhaust turbocharger is provided with a turbine housing ( | 12-08-2011 |
20110296830 | MULTISTAGE SUPERCHARGING SYSTEM CONTROL APPARATUS - In the case where a low-pressure-side supercharging pressure acquired value corresponding to the pressure of inlet gas at the outlet of a low-pressure compressor operated in a twin supercharging mode is less than a target supercharging pressure in a single supercharging mode, changeover from the twin supercharging mode to the single supercharging mode is prohibited. Meanwhile, in the case where the low-pressure-side supercharging pressure acquired value is equal to or greater than the target supercharging pressure, the changeover from the twin supercharging mode to the single supercharging mode is permitted. Alternatively, in the case where a supercharging pressure during operation in the single supercharging mode is less than a target value of the pressure of supply gas at the outlet of the low-pressure compressor in the twin supercharging mode, changeover from the single supercharging mode to the twin supercharging mode is prohibited. Meanwhile, in the case where the supercharging pressure is equal to or greater than the target value, the changeover from the single supercharging mode to the twin supercharging mode is permitted. | 12-08-2011 |
20110296831 | Approach for Identifying and Responding to an Unresponsive Wastegate in a Twin Turbocharged Engine - An engine system for a vehicle is provided, comprising an internal combustion engine including an exhaust system; a first turbine including a first wastegate and arranged along a first branch of the exhaust system, a second turbine including a second wastegate and arranged along a second branch of the exhaust system a first exhaust gas sensor arranged along the first branch of the exhaust system downstream of the first turbine and first wastegate; a second exhaust gas sensor arranged along the second branch of the exhaust system downstream of the second turbine and the second wastegate; and a control system configured to command the first and second wastegates to a closed or open position and to indicate one of said wastegates as unresponsive to said command in response to a temperature difference between the first and second branches indicated by the first and second exhaust gas sensors. | 12-08-2011 |
20110302917 | TWIN SCROLL TURBOCHARGER WITH EGR TAKEOFFS - Systems and methods for operating a twin scroll turbocharged engine with a junction configured to selectively control exhaust gas delivery to an exhaust gas recirculation system and a twin scroll turbine are provided. | 12-15-2011 |
20110314807 | TURBOCHARGER CONTROL - Various systems and methods for controlling a turbocharger of an engine via a wastegate are described. In one example, actuation of the wastegate is limited when outside a range, the limits of the range varying with boost pressure, turbine inlet pressure, turbine outlet pressure, and atmospheric pressure. In this manner, a tracking error may be reduced when controlling the boost pressure and using the boost pressure to actuate the wastegate in a boost-based wastegate configuration. | 12-29-2011 |
20110314808 | VANES FOR DIRECTING EXHAUST TO A TURBINE WHEEL - A vane for a turbine assembly of a turbocharger includes an airfoil that has a pair of flow surfaces disposed between a hub end and a shroud end and a leading edge and a trailing edge where the airfoil further includes a non-zero sweep angle, a non-zero lean angle, a non-zero twist angle or any two or more combinations thereof. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed. | 12-29-2011 |
20120000196 | TURBO-CHARGING APPARATUS FOR VEHICLE ENGINE - The disclosure provides a turbo-charging apparatus for a vehicle engine, which includes a first and second turbocharger, an inter-turbine passage connecting a discharging port of a first turbocharger turbine with an introducing port of a second turbocharger turbine, a bypass passage connecting an introducing passage of the first turbocharger turbine with the inter-turbine passage, and a control valve for opening and closing the bypass passage. The inter-turbine passage extends substantially straight from the discharging port of the first turbocharger turbine toward the second turbocharger when viewed from a direction parallel to turbine shafts of the first and second turbochargers, which are arranged substantially parallel to each other, so that the inter-turbine passage connects with an outer circumferential part of the second turbocharger turbine so as to extend in a direction tangent to an outer circumference direction of the second turbocharger turbine. | 01-05-2012 |
20120017585 | CONTROL DEVICE OF PREMIX COMBUSTION ENGINE - A control device of a premix combustion engine includes a hybrid turbocharger including a turbocharger having a compressor and a turbine, and a motor generator coupled with the compressor. A control unit controls the motor generator based on the operating conditions regarding a generator or the premix combustion engine and includes: an airflow rate computing unit for computing the necessary airflow rate required for the premix combustion engine, and an arithmetic unit for computing the power output or the rotation speed regarding the hybrid turbocharger to obtain the necessary airflow rate required for the premix combustion engine. Feedback control regarding the power output or the rotation speed as to the hybrid turbocharger is performed based on the computed results obtained by the arithmetic unit. | 01-26-2012 |
20120017586 | VARIABLE TURBOCHARGER AND CONTROL METHOD FOR THE SAME - A variable turbocharger including a turbine housing, a first scroll fluidly communicating with a turbine, a second scroll formed along an outside of the first scroll, wherein the first scroll and the second scroll are disposed within the turbine housing for exhaust gas to exhaust through the turbine, a partitioning unit for selectively separating the first scroll and the second scroll, and a a flux control valve disposed at the exhaust gas inflow portion and selectively coupled to the partitioning unit for blocking the exhaust gas from flowing into the second scroll. The variable turbocharger may prevent turbo lag at a low speed and be highly efficient at a high speed. | 01-26-2012 |
20120017587 | CONTROL SYSTEM OF INTERNAL COMBUSTION ENGINE - A control system of an internal combustion engine which arranges in an engine exhaust passage an exhaust turbine of an exhaust driven type supercharger, arranges in the exhaust passage downstream of the exhaust turbine an exhaust purification catalyst connects the exhaust passage between the exhaust purification catalyst and the exhaust turbine with the exhaust passage upstream of the exhaust turbine by a bypass passage, arranges in the bypass passage a storing agent which stores a specific ingredient in the exhaust, and is provided with an exhaust gas flow switching device which selectively switches the exhaust gas flow between a flow which flows through the exhaust turbine into the exhaust purification catalyst and a flow which flows through the bypass passage into the exhaust purification catalyst. | 01-26-2012 |
20120023932 | SYSTEM AND METHOD FOR CALCULATING A VEHICLE EXHAUST MANIFOLD PRESSURE - A vehicle includes an engine, an air intake assembly having a variable geometry turbine (VGT) controllable using a turbine mass flow map, an exhaust manifold, and a controller. The controller calculates a pressure ratio between the inlet and outlet sides of the VGT, and first and second exhaust manifold pressures using respective first and second models. Each of the models extracts information from the map. The controller executes a control action using the first pressure when the ratio exceeds a threshold, using the second pressure otherwise. The controller itself is also disclosed herein, as is a method for controlling an engine operation aboard the vehicle. The method includes using the host machine to calculate the exhaust pressure ratio, to calculate the first and second pressures using the respective first and second models, and to execute a control action using the first or second exhaust pressure depending on the ratio. | 02-02-2012 |
20120031092 | Internal combustion engine and method for operating an internal combustion engine - In an internal combustion engine with a high pressure exhaust gas turbocharger and a low pressure exhaust gas turbocharger connected in series, a bypass line including a blow-off valve extending around the high pressure and connected to the turbine of the low pressure exhaust gas turbocharger so that the exhaust gas can be conducted into a first inlet flow passage of the low pressure turbine in radial direction of the turbine wheel, the low pressure exhaust gas turbocharger comprises a second inlet flow by means of which the exhaust gas from the high pressure is directed onto the turbine wheel of the low pressure exhaust gas turbocharger in an axial or semi-axial flow direction. | 02-09-2012 |
20120036847 | METHOD FOR IMPROVING THE LIGHT-OFF OR REGENERATION BEHAVIOR OF AN AFTERTREATMENT DEVICE IN A VEHICLE SYSTEM - The process of active DPF regeneration requires that the DPF be brought to regeneration temperatures in excess of 550° C. to 600° C. for a period of time sufficient to accomplish soot burnoff in the DPF. Similarly, during cold start up it is desirable to bring the catalyst to light off temperature as soon as possible. The large thermal inertia of one or more turbochargers delays the exhaust gas at the DPF from reaching critical temperature quickly. The incorporation of a low thermal inertia, insulated, turbocharger bypass duct avoids thermal energy loss from exhaust gas to the turbine housing and shortens the time for the DPF to reach critical temperature for active DPF regeneration, or in the case of a catalytic converter, shortens time for catalyst to reach light off temperature. | 02-16-2012 |
20120055152 | METHOD FOR CONTROLLING A TURBOCHARGER SYSTEM OF AN INTERNAL COMBUSTION ENGINE, AND TURBOCHARGER SYSTEM - The disclosure relates to a method for controlling a turbocharger system of an internal combustion engine. The method comprises controlling a first bypass valve of a high pressure exhaust gas turbine and a second bypass valve of a low pressure gas turbine on the basis of a turbine model, the first and second bypass valves continuously variable. In this way, turbocharger system efficiency may be maximized. | 03-08-2012 |
20120055153 | ENGINE EXHAUST GAS ENERGY RECOVERY DEVICE - Providing an exhaust gas energy recovery device by which the optimal engine operating condition can be continuously maintained in a manner that the flow rate of the engine exhaust gas fed to the power turbine is regulated so that the scavenging air pressure becomes optimal in order that the engine performance (the fuel consumption rate) corresponding to the engine load and the engine speed becomes optima. The engine exhaust gas energy recovery device provided the engine load detecting sensor, the engine speed detecting sensor and the scavenging air pressure detecting sensor, the device regulating the flow rate of the exhaust gas streaming into the exhaust gas turbocharger via controlling the flow rate of the exhaust gas streaming into the power turbine of the exhaust gas energy recovery device, so that the scavenging air pressure is maintained at an arbitrarily ordered level and the engine is operated under a condition that the fuel consumption rate is minimal. | 03-08-2012 |
20120055154 | TURBOCHARGER - The invention relates to a turbocharger ( | 03-08-2012 |
20120060492 | METHOD AND SYSTEM ADJUSTING AN EXHAUST HEAT RECOVERY VALVE - A method for adjusting an exhaust heat recovery valve is presented. In one embodiment, the method may control an amount of boost provided by a turbocharger to an engine. | 03-15-2012 |
20120060493 | HYBRID COMBUSTION ENERGY CONVERSION ENGINES - A hybrid internal combustion engine having a cylinder, a piston disposed within the cylinder, said piston constructed and arranged to reciprocate within said cylinder, and a combustion chamber defined by the cylinder and the top of the piston. The hybrid internal combustion engine also includes an exhaust manifold and a heat exchanger is disposed within the exhaust manifold. A pump disposed between the heat exchanger and a fluid reservoir is provided to deliver fluid to from the reservoir to heat exchanger, whereby the fluid in the heat exchanger is heated and turned into high pressure gas (HPG) when the combustion gases are exhausted from the combustion chamber via the exhaust manifold. The resulting HPG may then be introduced into the combustion chamber to provide a HPG power stroke. | 03-15-2012 |
20120060494 | EXHAUST GAS CONTROL APPARATUS FOR ENGINE - A flow rate control valve and a waste-gate valve are operatively linked to a common cam plate, which is driven by an actuator. The cam plate has a first driving portion for rotating the flow rate control valve in a synchronized manner with rotation of the cam plate. The cam plate has a second driving portion for rotating the waste-gate valve in accordance with the rotation of the cam plate, wherein an operational pattern for the waste-gate valve is different from that for the flow rate control valve. As above, two valves are operated by one actuator so as to move independently from each other. | 03-15-2012 |
20120060495 | TURBOCHARGER - The invention relates to a turbocharger ( | 03-15-2012 |
20120073287 | TURBOCHARGER HAVING ANTI-SURGE VALVE - A turbocharger having an anti-surge valve may include a compressor that may be disposed at an intake line to compress intake air, and the anti-surge valve that selectively fluid-connects the downstream and the upstream of the compressor to circulate the intake air from the downstream to the upstream of the intake line, wherein a passage communicating with the downstream of the intake line may be formed in the anti-surge valve and the intake air flowing through the passage may be supplied to an edge portion outside a rotation center of a blade of the compressor. | 03-29-2012 |
20120079823 | System for Correcting Turbo Lag - A system for correcting turbo lag may include an engine provided with a plurality of cylinders, an intake manifold for supplying air to the plurality of cylinders, and an exhaust manifold for exhausting exhaust gas generated in the plurality of cylinders, an intake passage connected to the intake manifold so as to supply fresh air to the intake manifold, an exhaust passage connected to the exhaust manifold so as to exhaust the exhaust gas gathered in the exhaust manifold, a turbo charger provided with a turbine mounted at the exhaust manifold or the exhaust passage and rotated by the exhaust gas and a first compressor mounted at the intake passage and connected to the turbine so as to rotate with the turbine and compress the air of the intake passage, a bypass passage branching off at a first point of the intake passage and joining the intake passage at a second point of the intake passage downstream of the first point, a second compressor mounted at the bypass passage and compressing the air passing through the bypass passage, and driving means generating power for operating the second compressor and selectively supplying the power to the second compressor through a power delivery device, wherein the power delivery device comprises a plurality of pulleys, at least one of belts and shafts connecting each pulley to the second compressor, the driving means, or other pulley, and a tensioner maintaining tension of the belt. | 04-05-2012 |
20120079824 | SYSTEM FOR CORRECTING TURBO LAG - A system for correcting turbo lag may include an engine provided with a plurality of cylinders, an intake manifold for supplying air to the plurality of cylinders, and an exhaust manifold for exhausting exhaust gas generated in the plurality of cylinders, an intake passage connected to the intake manifold so as to supply fresh air to the intake manifold, an exhaust passage connected to the exhaust manifold so as to exhaust the exhaust gas gathered in the exhaust manifold, a turbo charger provided with a turbine mounted at the exhaust manifold or the exhaust passage and rotated by the exhaust gas and a first compressor mounted at the intake passage and connected to the turbine so as to rotate with the turbine and compress the air of the intake passage, a bypass passage branching off at a first point of the intake passage and joining the intake passage at a second point of the intake passage downstream of the first point, a second compressor mounted at the bypass passage and compressing the air passing through the bypass passage, and driving means generating power for operating the second compressor and selectively supplying the power to the second compressor through a power delivery device. | 04-05-2012 |
20120096854 | ENGINE EXHAUST TREATMENT SYSTEM AND METHOD FOR TREATING EXHAUST GAS FROM AN ENGINE - An engine exhaust treatment system includes an upstream turbocharger fluidly coupled with an engine and disposed downstream from the engine along a flow path of exhaust gas generated by the engine, a downstream turbocharger fluidly coupled with the upstream turbocharger and disposed downstream from the upstream turbocharger along the flow path, and an after-treatment receptacle fluidly coupled with and disposed between the upstream and downstream turbochargers along the flow path. The after-treatment receptacle is configured to receive a first filter medium that removes at least one of particulates or a gas constituent from the exhaust gas generated by the engine. In an embodiment, the exhaust gas can flow through the upstream turbocharger prior to flowing through the after-treatment receptacle and can flow through the after-treatment receptacle prior to flowing through the downstream turbocharger along the flow path. | 04-26-2012 |
20120102946 | AFTER-TREATMENT COOLING WITH COMBUSTION FEEDBACK - A method of operating an engine having a turbo charger includes sensing a temperature of a flow of exhaust gas from the engine, determining if the temperature of the exhaust gas is greater than an upper temperature threshold, sensing a cylinder pressure within the cylinders of the engine with a pressure sensor, determining if the cylinder pressure is greater than an upper pressure limit, sensing a boost provided by the turbo charger, determining if the boost is greater than a maximum boost limit, and adjusting the operation of the engine when the temperature of the exhaust gas entering the turbo charger is greater than an upper temperature threshold and the cylinder pressure is less than the upper pressure limit to reduce the temperature of the exhaust gas entering the turbo charger to a temperature below the upper temperature threshold. | 05-03-2012 |
20120110996 | METHOD AND SYSTEM FOR CONTROLLING ENGINE EXHAUST - An engine having one of a plurality of exhaust valves in each cylinder that may be deactivated is disclosed. In one example, one exhaust valve of each cylinder is deactivated in response to engine speed. The engine may have improved engine torque at low engine speeds and reduced time to torque (e.g., turbo lag). | 05-10-2012 |
20120124993 | ELECTRIC WASTE GATE ACTUATOR FOR TURBOCHARGER - Provided is an electric waste gate actuator for a turbocharger, in which the inside of a housing is divided into an upper portion and a lower portion to thereby prevent foreign particles generated in a decelerator from being introduced into a driving motor. The electric waste gate actuator for a turbocharger includes: a housing having an installation space inside; a decelerator installed in an upper portion of the installation space; a lever coupled to an upper end of the decelerator and installed outside the installation space; a driving motor installed in a lower portion of the installation space; a blocking plate dividing the installation space into the upper portion, where the decelerator is installed, and the lower portion, where the driving motor is installed, and preventing foreign particles generated in the decelerator from being introduced into the lower portion of the installation space; and a sensor unit installed under the blocking plate to measure a rotation angle of the decelerator. | 05-24-2012 |
20120137675 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE WITH SUPERCHARGER - In an internal combustion engine with a variable nozzle vane turbocharger, when the flow rate (VN passage flow rate) of exhaust gas passing through nozzle vanes has reached a spatial resonance region in an exhaust gas passage space between a turbine housing and a catalyst during acceleration, the flow rate is increased so that the spatial resonance region can be quickly passed. When the flow rate (VN passage flow rate) of exhaust gas passing through the nozzle vanes has reached the spatial resonance region during deceleration, the flow rate is decreased so that the spatial resonance region can be quickly passed. Such a control can reduce a period of time during which the frequency of pressure pulsation occurring at the rear ends of the nozzle vanes is amplified in the spatial resonance region, whereby noise caused by the pressure pulsation can be reduced. | 06-07-2012 |
20120137676 | ENGINE-EXHAUST-GAS ENERGY RECOVERY APPARATUS, SHIP EQUIPPED WITH THE SAME, AND POWER PLANT EQUIPPED WITH THE SAME - Provided is an engine-exhaust-gas energy recovery apparatus including a hybrid turbocharger having a turbine unit that is supplied with exhaust gas discharged from an engine, a compressor unit that pressure-feeds scavenging-air pressure to the engine, and a generator/motor unit that generates electricity when the turbine unit is driven; a bypass channel that allows the exhaust gas supplied toward the hybrid turbocharger to bypass the hybrid turbocharger; an engine-load detecting part; an engine-rotation-speed detecting part; a scavenging-air-pressure detecting part; and a control device having a database for calculating a scavenging-air pressure, at which the fuel consumption rate of the engine becomes lower than or equal to a predetermined value, from the detection values of the respective detecting parts. The control device controls an exhaust-gas bypass control valve so as to control the scavenging-air pressure of the engine. | 06-07-2012 |
20120159948 | INTERNAL COMBUSTION ENGINE WITH SUPERCHARGER - An internal combustion engine with a supercharger comprises an internal combustion engine including a plurality of cylinders; an intake passage that supplies gas to the internal combustion engine; a turbocharger-type supercharger including a turbine portion having a plurality of exhaust gas introduction passages; and an exhaust passage including a plurality of connecting passages that connect the plurality of cylinders and the plurality of exhaust gas introduction passages, wherein exhaust gas discharged from the internal combustion engine flows through the exhaust passage. The internal combustion engine comprises a bridge passage that connects two or more of the plurality of connecting passages to each other; a branch passage connected to the bridge passage; and a first opening and closing device provided into the bridge passage to open and close the bridge passage. | 06-28-2012 |
20120174578 | SUPERCHARGED INTERNAL COMBUSTION ENGINE AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE - A supercharged internal combustion engine is provided. The engine comprises a cylinder, an intake line in an intake system, for supplying charge air to the cylinder, an exhaust line for discharging exhaust gases, an exhaust-gas turbocharger including a turbine arranged in the exhaust line and a compressor arranged in the intake line, an exhaust-gas recirculation arrangement including a recirculation line which branches off from the exhaust line downstream of the turbine and opens into the intake line upstream of the compressor, and a sensor for detecting the concentration C | 07-12-2012 |
20120180476 | INTERNAL COMBUSTION ENGINE WITH EXHAUST-GAS TURBOCHARGING - The present disclosure relates to a supercharged internal combustion engine having at least one liquid-cooled cylinder head with at least two cylinders, each cylinder having at least one exhaust gas outlet opening with an exhaust line attached to each outlet. The exhaust lines from each outlet merge to form an integrated exhaust manifold within the cylinder head and an overall exhaust line directing exhaust gas outside of the cylinder head, and the at least one liquid-cooled turbine having a turbine housing arranged in said overall exhaust line. Further, a bypass line, separate from the exhaust lines forming the integrated exhaust manifold, branches off upstream of the turbine conducting blown-off exhaust gas past the turbine and outside of the turbine housing. | 07-19-2012 |
20120198837 | TURBOCHARGER CONTROL STRATEGY TO INCREASE EXHAUST MANIFOLD PRESSURE - A system for controlling an exhaust driven turbocharging system includes a turbocharger having an exhaust inlet, a discharge outlet, a compressor air inlet, and a compressor outlet, a compressor bypass valve having a control port, an inlet port, a discharge port, and a valve for opening and closing the discharge port, and an engine having an air inlet and an exhaust outlet, and may include a wastegate. In the system the compressor outlet of the turbocharger is connected to the air inlet of the engine and is connected to the inlet port of the compressor bypass valve. By controlling the compressor bypass valve and the wastegate higher turbine inlet pressures can be generated for use in other areas of the system. This is achieved by opening the compressor bypass valve in an unconventional area of the internal combustion engine's range where it would normally remain closed. | 08-09-2012 |
20120210709 | Wastegate Plug - A mono-block arm and plug for closing a wastegate opening includes a shaft portion and a plug portion extending from the shaft portion where the plug portion includes a feature configured to change shape responsive to application of force to close a wastegate opening to enhance sealing of the wastegate opening. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed. | 08-23-2012 |
20120210710 | METHOD FOR OPERATING A TURBOCHARGER ARRANGEMENT AND CONTROL UNIT FOR A TURBOCHARGER ARRANGEMENT - A method for operating a turbocharger arrangement of an internal combustion engine, the turbocharger arrangement comprising a low-pressure and a high-pressure turbocharging stage arranged sequentially, the low-pressure turbo-charging stage comprising a low-pressure turbine with a sensorless low-pressure turbine bypass valve, is provided. The method comprises evaluating at least one sensor signal of the turbocharger arrangement for detecting a failure mode of the sensorless low-pressure turbine bypass valve. In this way, the low-pressure turbine bypass valve may be monitored for degradation without utilizing a position sensor. | 08-23-2012 |
20120210711 | METHOD FOR OPERATING A TURBOCHARGER ARRANGEMENT AND CONTROL UNIT FOR A TURBOCHARGER ARRANGEMENT - A method for operating a turbocharger arrangement of an internal combustion engine, the turbocharger arrangement comprising a low-pressure and a high-pressure turbocharging stage arranged sequentially, the high-pressure turbocharging stage comprising a high-pressure compressor with a sensorless compressor bypass valve, comprises evaluating at least one sensor signal of the turbocharger arrangement for detecting a failure mode of the compressor bypass valve. | 08-23-2012 |
20120216528 | VEHICULAR ENGINE HAVING TURBOCHARGER AND VEHICLE INCLUDING SAME - An engine comprises an intake manifold, first and second cylinder banks, a turbocharger, a flow passage, and first and second cylinder banks The first and second cylinder banks are each in fluid communication with a respective output of the intake manifold. The turbocharger is associated with the second cylinder bank and includes a compressor input port and a compressor output port. The flow passage is in fluid communication with each of the compressor output port and an input of the intake manifold. | 08-30-2012 |
20120216529 | ENGINE EXHAUST AFTERTREATMENT SYSTEM - An internal combustion engine including a two-stage turbocharger configuration is described. Located between the turbines of the two-stage turbocharger may be an oxidation catalyst and a passive NOx adsorber or an oxidation catalyst and an SCR device. An exhaust path extending from an engine body of the internal combustion engine to the second turbine of the two-stage turbocharger configuration may also include one or more hydrocarbon sources or one or more ammonia sources. A bypass valve arrangement may permit decreased flow through the first stage of the two-stage turbocharger arrangement as well as one or more of the elements positioned between the turbines of the two-stage turbocharger. | 08-30-2012 |
20120222417 | METHOD FOR DETERMINING A POSITION SET POINT OF A BY-PASS ACTUATOR, INTENDED FOR A TURBOSUPERCHARGER - A method for a turbosupercharger of a heat engine including a turbine, a compressor, and a by-pass actuator that can be used to control an air flow that does not pass through the turbine. The method includes determining a position set point of the by-pass actuator as a function of a compression ratio set point, a compression ratio measurement, a measurement of the rate of flow through the compressor, a measurement of the pressure downstream from the turbine, a measurement of the pressure downstream from the compressor, a measurement of the temperature upstream from the turbine, and a measurement of the temperature upstream from the compressor. The method can be used to control a supercharging device with a single or dual turbocharger. | 09-06-2012 |
20120222418 | INTERNAL COMBUSTION ENGINE SYSTEM - An internal combustion engine system includes: a turbine disposed in an exhaust passage; a bypass passage provided in the exhaust passage and bypassing the turbine; a wastegate valve that opens and closes the bypass passage; and an air-fuel ratio sensor provided downstream of a discharge port of the bypass passage. The air-fuel ratio sensor is provided at such a position that the proportion of the amount of exhaust gas that directly strikes the air-fuel ratio sensor to the amount of exhaust gas discharged from the bypass passage changes depending on the opening degree of the wastegate valve. When the engine is in a cold-start state, the proportion of the amount of exhaust gas that directly strikes the air-fuel ratio sensor after being discharged from the bypass passage to the amount of exhaust gas discharged from the bypass passage is made smaller than when the engine is in a warm-start state. | 09-06-2012 |
20120234002 | Wastegates and Wastegate Components - A turbine housing includes a wastegate chamber with a wastegate opening; and a wastegate disposed in the wastegate chamber where the wastegate includes a plug configured to plug the wastegate opening and where the plug includes a surface; a shaft configured for receipt by a bore in a wall of the wastegate chamber; and a rotatable arm extending from the shaft where the arm has a surface configured for contacting the surface of the plug for a closed orientation of the plug with respect to the wastegate opening to transmit force from the arm more centrally to the plug. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed. | 09-20-2012 |
20120240572 | INTERNAL COMBUSTION ENGINE EQUIPPED WITH WASTEGATE TURBINES, AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE - Embodiments for a turbocharged engine including two turbochargers are provided. In one example, a turbocharger engine includes two turbochargers arranged in parallel, each coupled to a separate exhaust manifold. Bypass of exhaust around both turbochargers may be provided via a single wastegate. | 09-27-2012 |
20120240573 | SUPERCHARGED INTERNAL COMBUSTION ENGINE, AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE - A supercharged internal combustion engine having at least two exhaust-gas turbochargers is provided. The engine includes a first exhaust manifold and a second exhaust manifold which are permanently connected to one another upstream of the two turbines of the turbochargers via at least one connecting duct which cannot be closed off. In this way, overflow of exhaust from the one exhaust manifold may be transferred to the other exhaust manifold. | 09-27-2012 |
20120240574 | INTERNAL COMBUSTION ENGINE EQUIPPED WITH TWO EXHAUST-GAS TURBOCHARGERS, AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE - Embodiments for controlling exhaust flow are provided. Example embodiments include a cylinder head having two integrated exhaust manifolds, wherein each exhaust manifold is coupled to a turbine of a turbocharger. After passing over the turbines, the exhaust gas may exit through a shared balcony-like projection arranged between the exhaust manifolds. | 09-27-2012 |
20120255297 | TURBINE FOR AN EXHAUST TURBOCHARGER, EXHAUST TURBOCHARGER, MOTOR VEHICLE AND METHOD FOR OPERATING AN EXHAUST TURBOCHARGER - A turbine for an exhaust turbocharger, in particular for a motor vehicle, has a turbine flap which controls an exhaust volume flowing through the turbine. A wastegate valve directs exhaust past the turbine and a wastegate flap controls an exhaust volume flowing through the wastegate valve. We also provide for an exhaust turbocharger, a motor vehicle having such an exhaust turbocharger, and for a method for operating such an exhaust turbocharger. | 10-11-2012 |
20120272644 | APPARATUS AND METHOD TO CONTROL TURBOCHARGER WASTE GATE DURING ENGINE BRAKING - The present invention relates to a methods and apparatus for controlling the actuation of the waste gate of a turbocharger. The waste gate may be opened in response to a pneumatically operated waste gate actuator connected to the intake manifold by a waste gate actuator passage. A waste gate cut-off valve may be disposed in the waste gate actuator passage and may block the waste gate actuator passage in response to an engine braking operation of the engine. Alternatively, a snubber may be disposed in the waste gate actuator passage. | 11-01-2012 |
20120279216 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE WITH SUPERCHARGER - Disclosed is a control apparatus that is used for an internal combustion engine with a supercharger and capable of inhibiting a decrease in the temperature of an exhaust gas purification device under a low-temperature operating condition where the temperature of the exhaust gas purification device decreases. The control apparatus includes a turbocharger having a turbine that operates by exhaust energy and is installed in an exhaust passage; and the control apparatus includes a WGV that opens and closes an exhaust bypass passage, which bypasses the turbine. The degree of opening of the WGV is controlled depending on whether a high turbine temperature condition where the temperature of exhaust gas at a downstream location is higher when it passes through the turbine than when it passes through the exhaust bypass passage, is established when a low-temperature operating condition is established to decrease the temperature of an exhaust purification catalyst. | 11-08-2012 |
20120285163 | EXHAUST BYPASS SYSTEM FOR TURBOCHARGED ENGINE WITH DEDICATED EXHAUST GAS RECIRCULATION - A turbocharger assembly for an internal combustion engine includes a bypass valve for controlling a flow of exhaust gas from a second group of exhaust ports of a cylinder head assembly. When disposed in an open position, the bypass valve allows exhaust gas from the second group of exhaust ports to combine with exhaust gas from a first group of exhaust ports to spin a turbine of the turbocharger assembly. When disposed in a closed position, the bypass valve forces the exhaust gas from the second group of exhaust ports through an Exhaust Gas Recirculation (EGR) passage to an intake manifold to establish a dedicated EGR system. | 11-15-2012 |
20120285164 | TURBOCHARGED ENGINE WITH SEPARATE EXHAUST MANIFOLDS AND METHOD FOR OPERATING SUCH AN ENGINE - Systems and methods for a turbocharged internal combustion engine are provided herein. One example system includes a cylinder head with at least two cylinders, at least two exhaust openings per cylinder, at least one of which is engageable. The system further includes a first exhaust manifold integrated in the cylinder head and connecting the engageable openings with a first turbocharger turbine, and a second, separate exhaust manifold integrated in the cylinder head and connecting the non-engageable openings with a second turbocharger turbine in parallel with the first turbine. | 11-15-2012 |
20120291431 | FORCED INDUCTION AND EXHAUST SYSTEM - In one exemplary embodiment of an exhaust system, the system includes an exhaust manifold in fluid communication with an internal combustion engine and a forced induction device in fluid communication with the exhaust manifold, the forced induction device including a housing. The system further includes a flow control device to control fluid communication between the forced induction device and a catalyst substrate and to control fluid communication between the exhaust manifold and the catalyst substrate. | 11-22-2012 |
20120312010 | WASTE GATE VALVE DEVICE - A waste gate valve device in which a waste gate valve | 12-13-2012 |
20120317974 | METHOD AND SYSTEM FOR DETERMINING CONDITIONS OF AN AIR FILTER - A method for operating a turbocharger wastegate is disclosed. In one example, the wastegate is operated to provide a state of an engine air intake system air filter. The approach can provide a status the air intake filter via a sensor that has an alternative primary purpose thereby potentially reducing system cost. | 12-20-2012 |
20120317975 | TURBOCHARGER - Turbocharger provided with a bypass valve device comprising a valve element having a shaft movably connected to a valve element support, with a spindle between the valve element support and an adjusting lever extending transversely to the spindle, and an adjusting lever actuating element pivotably connected to the adjusting lever; an annular spring element is provided in at least one of a first position between the valve element and the valve element support and a second position between the adjusting lever and the adjusting lever actuating element, the spring element comprising at least one annular spring steel disc with a bead being configured and dimensioned so as to minimize play between the valve element and its support or between the adjusting lever and its actuating element. | 12-20-2012 |
20130000298 | Exhaust gas recirculation valve for internal combustion engine - An exhaust gas recirculation valve is configured as a butterfly valve and includes a body with a generally uniform diameter bore therethrough. A generally circular plate is mounted within the bore and is rotatable between a first open position and a second closed position. The generally circular plate is dimensioned to provide a enlarged gap between an outer edge of the generally circular plate and the bore when at the second closed position. | 01-03-2013 |
20130014502 | SUPERCHARGING APPARATUS FOR VEHICLEAANM Sato; OsamuAACI Takahama-cityAACO JPAAGP Sato; Osamu Takahama-city JP - A turbocharger of a supercharging apparatus includes a turbine impeller, which is rotatable by exhaust gas discharged from an internal combustion engine of a vehicle. An electric heater is placed in an exhaust passage, which extends from an exhaust outlet of the internal combustion engine to the turbine impeller. The electric heater generates a heat when the electric heater is energized. | 01-17-2013 |
20130042608 | SLIDING VANE GEOMETRY TURBINES - Various systems and methods are described for a variable geometry turbine. In one example, a turbine nozzle comprises a central axis and a nozzle vane. The nozzle vane includes a stationary vane and a sliding vane. The sliding vane is positioned to slide in a direction substantially tangent to an inner circumference of the turbine nozzle and in contact with the stationary vane. | 02-21-2013 |
20130042609 | UNIT FOR ESTIMATING THE ROTATIONAL SPEED OF A TURBOCHARGER AND SYSTEM AND METHOD FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE WITH A TURBOCHARGER - A unit for estimating a rotational speed of a turbocharger is provided. The unit includes a microprocessor comprising input ports configured for receiving measurement signals from an exhaust gas flow control system of an internal combustion engine and an output port for outputting a signal indicative of the rotational speed of the turbocharger. The input ports are adapted to receive a first set of measurement signals and a second set of measurement signals. A microprocessor is configured to calculate an estimated rotational speed of the turbocharger using a turbocharger model, based on the first set of measurement signals and the second set of measurement signals. The second set of measurement signals include signals indicative of a pressure difference across a turbine of the turbocharger. | 02-21-2013 |
20130055711 | METHOD AND SYSTEM FOR A TURBOCHARGED ENGINE - Methods and systems are provided for operating a turbocharged engine. An engine system comprises a turbocharger, a bypass path, and a turbo-compound unit. The turbocharger may include a turbine mechanically coupled to a compressor. The turbo-compound unit may include a turbine mechanically coupled to a load, such as a generator. The turbo-compound unit may be coupled in a bypass path around the turbocharger turbine. In this manner, thermodynamic energy flowing through the bypass path may be harvested to increase the engine-operating efficiency. Further, gas flow through the bypass path may be adjusted to potentially improve the transient response of the turbocharger. | 03-07-2013 |
20130055712 | GAS ENGINE - A gas engine includes a generator coupled to an output shaft thereof, an intake passage to which a low-concentration methane gas (VAM gas) derived from mine venting is supplied, and a gas mixing unit mixing a high-concentration methane gas (CMM gas) to the low-concentration methane gas midway along the intake passage, so that a gas mixture of the low-concentration methane gas and the high-concentration methane gas is supplied to and burnt in a combustion chamber. A turbocharger is provided in the intake passage upstream of the gas mixing unit, and in the intake passage upstream of the turbocharger, is provided a mixture ratio adjusting unit adjusting a mixture ratio of the low-concentration methane gas and the air. The temperature or flow rate of intake gas flowing into the turbocharger is kept in a constant range by an intake controller. | 03-07-2013 |
20130067914 | METHODS AND SYSTEMS FOR DIAGNOSING A TURBOCHARGER - Various methods and systems are provided for a turbocharger. In one example, a method includes determining a first pressure at a first location within a turbocharger and determining a second pressure at a second location within the turbocharger. The method further includes indicating degradation of the turbocharger based on the first pressure and the second pressure. | 03-21-2013 |
20130067915 | METHODS AND SYSTEMS FOR DIAGNOSING A TURBOCHARGER - Various methods and systems are provided for a turbocharger. In one example, a method includes receiving a signal indicative of a monitored pressure of a pressurized oil supply of a turbocharger or other turbomachine. The method further includes determining whether a high frequency component of the signal meets one or more designated criteria, and, if the high frequency component of the pressure meets the one or more designated criteria, generating a first control signal. | 03-21-2013 |
20130074492 | SYSTEM FOR CONTROLLING AN AIR HANDLING SYSTEM INCLUDING A DUAL-STAGE VARIABLE GEOMETRY TURBOCHARGER - A system is provided for controlling an air handling system for an internal combustion engine. A dual-stage turbocharger includes a high-pressure compressor and variable geometry turbine combination fluidly coupled to a low-pressure compressor and variable geometry turbine combination. A control circuit includes a memory having instructions stored therein that are executable by the control circuit to determine a target low-pressure compressor ratio, a target high-pressure compressor ratio, a target high-pressure compressor inlet temperature and a target high-pressure compressor inlet pressure as a function of a target outlet pressure of the high-pressure compressor and a temperature, a pressure and a target flow rate of air entering the air inlet of the low-pressure compressor, and to control the geometries of the low-pressure and high-pressure turbines as a function of the target low-pressure compressor ratio the target high-pressure compressor ratio respectively. | 03-28-2013 |
20130081391 | COMPRESSOR BYPASS - A power system includes a natural gas engine, a first turbine receiving an exhaust from the engine, and a second turbine having an inlet fluidly connected to an outlet of the first turbine. The power system also includes a compressor driven by the first turbine. The compressor has an outlet fluidly connected to the engine. The power system further includes a bypass system directing a fluid from the outlet of the compressor to the inlet of the second turbine. | 04-04-2013 |
20130098032 | METHOD AND SYSTEM FOR REDUCING TURBOCHARGER NOISE DURING COLD START - An approach for controlling a turbocharger bypass valve is disclosed. In one example, the turbocharger bypass valve is opened during engine cold start conditions to reduce turbocharger speed. The approach may reduce noise produced by the turbocharger during engine start and warm-up. | 04-25-2013 |
20130098033 | INTAKE CONTROLLER AND METHOD OF INTAKE CONTROLLING FOR INTERNAL COMBUSTION ENGINE - In an intake controller for an internal combustion engine, an opening controlling unit performs, when a light load operation is performed during a manual forced regeneration process of a diesel particulate filter which reduces an amount of particulate matter included in exhaust gas exhausted from the internal combustion engine, control to form a bypass passage by setting an open-close valve to a fully closed state and a variable turbo nozzle to a fully closed state and which performs, when an amount of the injected fuel detected by a fuel injection amount detecting unit becomes zero, control to set the open-close valve from the fully closed state to a fully opened state and the variable turbo nozzle from the fully closed state to a fully opened state. | 04-25-2013 |
20130104539 | TURBINE FOR AND EXHAUST GAS TURBOCHARGER | 05-02-2013 |
20130111899 | ENGINE ASSEMBLY INCLUDING EXHAUST PORT SEPARATION FOR TURBINE FEED - An engine assembly may include an engine structure, first and second exhaust gas conduits, a turbine and a flow control mechanism. The engine structure may define a first cylinder and first and second exhaust ports in communication with the first cylinder. The first exhaust gas conduit may be in fluid communication with the first exhaust port. The second exhaust gas conduit may be in fluid communication with the second exhaust port. The turbine may be in fluid communication with the first exhaust gas conduit. The flow control mechanism may prevent the exhaust gas from the first cylinder from flowing through the second exhaust gas conduit during a first mode and may allow the exhaust gas to flow through both the first and second exhaust gas conduits during a second mode. | 05-09-2013 |
20130111900 | METHOD FOR DETERMINING AND COMPENSATING ENGINE BLOW-THROUGH AIR - A method for determining cylinder blow-through air via engine volumetric efficiency is disclosed. In one example, the method provides a way to adjust cylinder blow-through to promote and control a reaction in an exhaust after treatment device. The approach may simplify cylinder blow-through calculations and improve engine emissions via providing improved control of constituents reaching an exhaust after treatment device. | 05-09-2013 |
20130118161 | Device for Actuating a Flap - A device for actuating a flap, in particular a wastegate flap in an exhaust gas turbocharger for an internal combustion engine, includes a control rod, which can be moved by an actuator substantially in an axial direction and is guided in a fist gate via a first pin at the side thereof facing away from the actuator. A carriage is articulated on the first pin and is guided in the first gate via a second pin on the side facing away from the first pin, wherein a pivot lever is articulated on the second pin and, on the side facing away from the second pin, the pivot lever is rotatably mounted in a machine housing, preferably a turbine housing, and the flap is arranged on the pivot lever on the side facing away from the second pin. By way of the articulated design, a non-linear adjustment of the flap is possible. | 05-16-2013 |
20130118162 | Methods and Systems for Emission System Control - Methods and systems are provided for operating an engine including an emission control system, the emission control system comprising a catalyst downstream of a turbine of a boosting device and a reductant injector upstream of the turbine. In one example, the method comprises injecting reductant into exhaust upstream of the turbine, mixing the injected reductant with exhaust gas via the turbine, and delivering the mixed reductant to the catalyst. | 05-16-2013 |
20130125542 | EXHAUST HEATING APPARATUS FOR INTERNAL COMBUSTION ENGINE AND CONTROL METHOD FOR THE SAME - An exhaust heating apparatus ( | 05-23-2013 |
20130139502 | WASHER FOR REDUCING NOISE AND SYSTEM FOR REDUCING NOISE OF WASTEGATE VALVE APPARATUS BY USING THE SAME - A system for reducing noise of a wastegate valve apparatus including a bypass passage, a wastegate valve, an actuator and a link unit delivering the power of the actuator to the wastegate valve, may have a first link connected to the actuator, a third link connected to the wastegate valve, a second link provided with a rod disposed between the first link and the third link, wherein the second link includes a rod end ball bearing having a penetration hole into which a bolt member is inserted and a ball coupled to the penetration hole, and a joint connecting the rod and the third link, and a first washer disposed between the rod end ball bearing and the first link, wherein the first washer includes a support body, and an elastic member disposed between the first link and the support body. | 06-06-2013 |
20130139503 | ACTUATING DRIVE, EXHAUST GAS RECIRCULATING VALVE, TURBOCHARGER - An actuating drive for an adjustable actuating element may include an actuator for producing drive forces. A toggle lever may be connected to the actuating element by a first toggle lever joint. A force transmission may connect the actuator to the toggle lever. An output-side output element may be mounted pivotably on a supporting housing section of the actuating drive. The toggle lever may be connected to the output element by a second toggle lever joint. A transverse support may be oriented transversely to a linear movement direction and configured to support at least one of the toggle lever and the actuating element on a guiding housing section of the actuating device. | 06-06-2013 |
20130152580 | Method for Regulating Stable Operation of an Exhaust-Gas Turbocharger of an Internal Combustion Engine, and a Corresponding Apparatus - A method and apparatus is provided for regulating stable operation of an exhaust-gas turbocharger of an internal combustion engine having a fresh-gas supply device, a switchover valve, a control device, a compressor for generating compressed air and an air-processing unit with a discharge valve. The compressor is operated in a suction intake mode in which the compressor is connected to an air inlet, and based on monitored operating parameters, the switchover valve switches the compressor from the suction intake mode into a pressure-charged in which the compressor is connected to an exhaust-gas turbocharger compressor. Based on monitored operating parameters when in the pressure-charged mode, the switchover valve switches the compressor from the pressure-charged mode into the suction intake mode. | 06-20-2013 |
20130167527 | Exhaust Pulse Energy Divider - An exhaust gas turbocharger housing ( | 07-04-2013 |
20130174545 | CONTROL SYSTEMS AND METHODS FOR SUPER TURBO-CHARGED ENGINES - A method of controlling airflow of an engine system is provided. The method includes determining a supercharger operating mode and a turbocharger operating mode based on engine load; selectively generating a control signal to a turbocharger based on the turbocharger operating mode; and selectively generating a control signal to a supercharger bypass valve based on the supercharger operating mode. | 07-11-2013 |
20130180240 | WASTE HEAT RECOVERY DEVICE BYPASS ARRANGEMENT - A waste heat recovery device bypass arrangement includes a conduit having s first end and a second end adapted to connect upstream and downstream, respectively, of a waste heat recovery device, a valve in the conduit, the valve being control-table to open and close, and a controller arranged to control the valve to open in response to a first signal and close in response to a second signal. | 07-18-2013 |
20130186085 | EXHAUST-GAS TURBOCHARGER WITH A BYPASS VALVE - An exhaust-gas turbocharger is embodied with a bypass valve which is disposed in a bypass duct of a turbine between an exhaust-gas pressure line and an outlet cross section of the turbine of the exhaust-gas turbocharger and which is connected to an actuating device for controlling the throughput of exhaust-gas through the bypass duct. Through the bypass valve, a partial flow of the exhaust-gas can be guided past the turbine on demand. The bypass valve has a valve head and a valve stem. The bypass valve is axially movably held with the valve stem. The valve head, in a closed state of the bypass valve, can be placed against a valve seat in order to close the bypass duct in a gas-tight and pressure-tight manner. The side of the valve head that is connected to the valve stem faces the exhaust-gas pressure line. | 07-25-2013 |
20130186086 | ARRANGEMENT FOR INJECTING A REDUCTANT INTO AN EXHAUST LINE OF AN INTERNAL COMBUSTION ENGINE - An arrangement for injecting a reducing agent into an exhaust line of a combustion engine ( | 07-25-2013 |
20130199175 | WASTEGATE VALVE - In a wastegate valve which is provided in the bypass path bypassing the turbine of the turbocharger in the exhaust gas path and which opens and closes the bypass path, the wastegate valve is provided with a valve seat which is formed in a plane perpendicular to or tilted with an inclination angle with respect to an axial direction of the bypass path, and a valving element which is pivotable around a pivot point which has a relationship of 0°<β<90° with respect to the plane including the valve seat where β is an inclination angle, the valving element being moved away from or closer to the valve seat by pivotation of the valving element to open or close the valve. | 08-08-2013 |
20130199176 | EXHAUST GAS THROTTLE VALVE - A method for driving exhaust gas recirculation comprising the steps of restricting exhaust gas flow into the turbine inlet to create backpressure in the exhaust system under low engine operating conditions, and providing an unrestricted exhaust gas flow to the turbine under normal engine operating conditions. Restriction of exhaust gas flow is accomplished through the use of an exhaust gas throttle valve disposed upstream of the turbine inlet. The valves can be adjustable knife edge flap valves or D-shaped valves situated in each passageway of a divided exhaust manifold, which are closed to varying degrees to generate desired levels of backpressure while allowing exhaust gas to pass though open regions of the partially obstructed flow pathway to reach the engine turbocharger. This allows the turbine to continue to spin, while at the same time exhaust gas back pressure upstream of the turbocharger is used to drive exhaust gas recirculation. | 08-08-2013 |
20130213035 | ENGINE - An engine is equipped with a supercharger (exhaust turbocharger) which is rotationally driven by means of exhaust gas and in which an expansion ratio is settable greater than a compression ratio. The engine includes: an operation state determination unit that determines an operation state of the engine; a plurality of exhaust valves provided at a single cylinder; a variable exhaust valve timing mechanism that is capable of changing opening timing of at least one exhaust valve among the exhaust valves; and a controller that, when it is determined by the operation state determination unit that the engine is operated with low load and is acceleration time, transmits a command to the variable exhaust valve timing mechanism and advances the opening timing of the at least one exhaust valve relative to the opening timing of another exhaust valve. Thereby, supercharging response and the expansion ratio are maintained. | 08-22-2013 |
20130232970 | Linear Actuator for a Variable-Geometry Member of a Turbocharger, and a Turbocharger Incorporating Same - A linear actuator for a variable-geometry member of a turbocharger includes a piston/rod assembly that can axially translate and also pivot to a limited extent. A permanent magnet is mounted in a fixed position within the actuator. A non-magnetized flux carrier is mounted in the piston/rod assembly, and its movement alters the magnetic field of the magnet. A Halls effects sensor detects the magnetic field and the signals produced by the sensor are used for determining axial position of the piston/rod assembly. | 09-12-2013 |
20130232971 | TURBOCHARGER COMPRESSOR INLET FLOW CONTROL - Systems and methods for controlling compressor inlet flow in a turbocharger of an engine are described. In one example, a method for controlling a compressor inlet flow of an engine turbocharger system comprises: directing air from a high pressure source to an inlet upstream of a compressor wheel via a conduit coupled to the inlet and the high pressure source, where the conduit is obliquely coupled to the inlet. | 09-12-2013 |
20130247560 | Turbocharger Cartridge and Engine Cylinder Head Assembly - An turbocharger cartridge and engine cylinder head assembly includes a turbocharger cartridge that includes some but not all of the components of a turbocharger, while the engine cylinder head provides the components of the turbocharger that are not included in the cartridge. The cartridge includes a center housing rotating assembly having a shaft that joins a turbine wheel to a compressor wheel, the shaft passing through bearings housed in the center housing. The engine cylinder head defines a receptacle that receives the cartridge. The head also defines a diffuser and volute for the compressor, and a turbine volute. The cartridge defines a turbine nozzle and turbine contour, and further includes a wastegate unit as a part of the cartridge. | 09-26-2013 |
20130247561 | TURBOCHARGER SYSTEM HAVING A SHARED BYPASS CONDUIT AND WASTEGATE - A turbocharger system is provided. The turbocharger system may include a first turbocharger including a first turbine in fluidic communication with a first cylinder, a second turbocharger including a second turbine in fluidic communication with a second cylinder, and a shared bypass conduit having a wastegate coupled thereto, the shared bypass conduit is in fluidic communication with an inlet of the first turbine and an inlet of the second turbine. | 09-26-2013 |
20130247562 | METHODS AND SYSTEMS FOR AN ENGINE - Various methods and systems are provided for an engine system for a vehicle. In one example, the engine system includes a turbocharger including a turbine, the turbocharger configured to be driven via exhaust gas from an engine during a turbocharger mode and via the exhaust gas from the engine and mechanical output from the engine during a supercharger mode. The engine system further includes a bypass control element to decrease an amount of energy extracted from exhaust flow through the turbine in a regeneration mode of operation and to increase an amount of energy extracted from exhaust flow through the turbine during a non-regeneration mode of operation, and an aftertreatment system disposed downstream of the turbocharger and including a particulate filter. | 09-26-2013 |
20130247563 | CHARGING DEVICE - A charging device may include an actuating device for actuating a control device. The actuating device may be coupled to the control device via an actuating rod. The actuating rod may be coupled to the control device via a guide piece rotatably mounted at two points in an outer actuator lever. | 09-26-2013 |
20130247564 | INTERNAL COMBUSTION ENGINE AND A METHOD OF OPERATION OF AN INTERNAL COMBUSTION ENGINE - An internal combustion engine and a method of operation are described involving: supplying intake gas from an intake manifold ( | 09-26-2013 |
20130255250 | TOLERANCE-CORRECTED ACTUATOR AND ASSOCIATED PRODUCTION METHOD - An approach for producing a tolerance-corrected actuator for a supercharging device may include connecting a connecting element to a regulating rod of a regulating component assembly, bringing a tolerance-corrected actuator into a predefined position in response to a defined signal and adjusting a predetermined overall length of the regulating component assembly by shifting the connecting element relative to the regulating rod. | 10-03-2013 |
20130263589 | TURBOCHARGER WASTE GATE - A method for operating turbocharger waste gate is disclosed. In one example, the method operates the waste gate synchronous with engine operation. The approach may reduce turbocharger lag and improve turbocharger efficiency. | 10-10-2013 |
20130276443 | SYSTEM AND METHOD FOR CONTROLLING AN EXHAUST-BRAKING ENGINE MANEUVER - A method for controlling an exhaust-braking engine maneuver includes driving a compressor by a turbine so that the compressor receives and compresses an intake stream of fluid to produce a stream of compressed fluid. The method also includes receiving a stream of engine working fluid that includes the stream of compressed fluid, and discharging, to an exhaust system, an exhaust stream comprising the stream of engine working fluid. A stream of scavenged exhaust fluid comprising at least a portion of the exhaust stream is received, and work is extracted from the stream of scavenged exhaust fluid by the turbine to drive the compressor. The variable turbine nozzle and an intake throttle valve are modulated so as to satisfy one or more turbine control criterion and one or more compressor control criterion. | 10-24-2013 |
20130283781 | TURBOCHARGED POWER UNIT AND METHOD OF OPERATING UNDER HIGH LOAD CONDITIONS - A first stage turbocharger configured to receive an ambient intake air stream. A compressor of the first stage turbocharger coupled to a first intercooler. The first intercooler coupled to a turboexpander stage. The turbine of the turboexpander discharging an expanded air stream to an intake manifold of an engine. The expanded airstream having a temperature of less than the ambient intake air stream, thereby reducing enabling operation of the engine under high load conditions while maintaining reduced emissions. | 10-31-2013 |
20130291538 | REGULATING FLAP ARRANGEMENT - A regulating flap arrangement ( | 11-07-2013 |
20130291539 | EXHAUST-GAS TURBOCHARGER HAVING A COMPRESSOR HOUSING WITH AN INTEGRATED WASTEGATE ACTUATOR - An exhaust gas turbocharger has a compressor housing formed with a fresh-air inlet duct. An electric wastegate actuator is integrated into the compressor housing. The electric wastegate actuator is thermally coupled to the fresh-air inlet duct. | 11-07-2013 |
20130305710 | Wastegate Control System And Method - A wastegate control system and a method for the wastegate control system is disclosed. The wastegate control system includes an ambient pressure sensor, a throttle angle sensor, an ignition timing sensor, a knock sensor, an intake charge temperature sensor and an intake charge humidity sensor. A wastegate is controlled according to information received from these sensors. | 11-21-2013 |
20130305711 | BLEED VALVE OF AN EXHAUST GAS TURBOCHARGER - In an exhaust gas charger bleed valve with a valve disk by which the flow cross-section of a bypass duct, via which exhaust gas flow volume bypassing an impeller of the exhaust gas turbocharger is adjustable, the valve includes a valve disk with the exhaust gas turbocharger is adjustable, the valve includes a valve disk with a front end valve face which is formed so as to be asymmetric with respect to the valve disk attachment to a lever arm on which the valve disk is mounted. | 11-21-2013 |
20130305712 | ACTUATING DEVICE FOR AN EXHAUST GAS TURBOCHARGER - In an actuating device for an exhaust gas turbocharger for adjusting the charging pressure of the exhaust gas turbocharger, including a valve element which is coupled with an actuating element of the actuating device via at least one intermediate element and which is adjustable via the actuating element between a first position in which a duct of the exhaust gas turbocharger through which exhaust gas may flow is at least partially opened and another position in which the duct is at least partially blocked, the intermediate element which comprises a first end region and a second end region is coupled with the valve element and the actuating element, the intermediate element at its second end region being rotatable about a third axis of rotation relative to the valve element and is coupled with it and at its first end region is rotatable about a second axis of rotation which extends essentially perpendicular to the third axis of rotation relative to the actuating element with which it is also coupled. | 11-21-2013 |
20130305713 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE WITH TURBO-SUPERCHARGER - A control device for an internal combustion engine with a turbo-supercharger including a variable valve mechanism at least at either one of an intake side and an exhaust side includes a scavenging amount setting means for determining an upper limit value of a scavenging amount moving from an intake passage to an exhaust passage across the interior of a cylinder during a valve overlap period to satisfy a performance requirement for the internal combustion engine, and a variable valve control means for controlling the duration of the valve overlap period according to the scavenging amount. | 11-21-2013 |
20130312406 | METHOD AND DEVICE FOR CONTROLLING AN ELECTRICAL ACTUATOR FOR A WASTEGATE VALVE ARRANGEMENT OF AN EXHAUST GAS TURBOCHARGER - A method for controlling an electrical actuator for a wastegate valve arrangement of an exhaust gas turbocharger in an internal combustion engine is provided. A wastegate is situated in a bypass channel of the exhaust gas turbocharger. The method includes closing or opening the wastegate by the actuator for adjusting the exhaust gas flow routed past the exhaust gas turbocharger via the bypass channel. The wastegate is exposed to a predetermined closing force while it is in a closed state so as to regulate the closing force to a desired value for the closing force as a function of an actual value for the closing force. Computer-readable mediums embodying a computer program product having a program to perform the method are also provided. | 11-28-2013 |
20130327038 | TURBINE FOR AN EXHAUST GAS TURBOCHARGER - In a turbine for an exhaust gas turbocharger of an internal combustion engine having a housing part with accommodation space including a turbine wheel and at least one spiral channel via which exhaust gas of the internal combustion engine may flow. The spiral channel has an outlet cross-section via which the turbine wheel accommodated in the accommodation space may be acted on by the exhaust gas, and has at least one blocking member, which is connected to an adjusting part so as to be movable hereby in the peripheral direction of the accommodation space for adjusting the outlet cross-section (A | 12-12-2013 |
20130327039 | MULTI-STAGE TURBO WITH CONTINUOUS FEEDBACK CONTROL - A turbocharger control system for an internal combustion engine having first and second turbochargers connected in series includes first and second pressure sensors, and a controller. The first and second pressure sensors are disposed in an air intake of the engine, and are configured to sense boost pressure of the first and second turbochargers, respectively. The controller is configured to receive pressure signals from the first and second pressure sensors, and to control operation of at least one of the first and second turbochargers to maintain a desired boost pressure ratio. | 12-12-2013 |
20130327040 | Checking An Exhaust Gas Flap - A method is disclosed for checking a valve on an exhaust gas turbocharger of an internal combustion engine, wherein an exhaust gas flow exits the internal combustion engine, a first portion of said flow flowing through a turbine of the exhaust gas turbocharger into an exhaust gas system and a second portion flowing through the valve into the exhaust gas system, wherein said method includes the steps of varying a fuel-to-air ratio in a fresh gas supplied to the internal combustion engine, determining a residual oxygen content in the exhaust gas system, and determining that the valve is defective if a variation of the residual oxygen content occurs in a manner different than a predetermined manner of the variation of the fuel-to-air ratio in the fresh gas. A device for checking the valve can be integrated into an integrated engine control unit of the internal combustion engine. | 12-12-2013 |
20130333379 | ACTUATING DEVICE FOR AN EXHAUST FLAP - An actuating device includes an exhaust flap of a supercharging pressure control of turbocharged internal combustion engines. The exhaust flap is arranged pivotably in an exhaust pipe, in particular in the housing of a turbine of an exhaust-gas turbocharger, and controls in dependence on the compressor-side supercharging pressure the opening cross section of a bypass line which circumvents the turbine. The exhaust flap is arranged on an actuator arm which is fastened on a shaft mounted rotatably in the exhaust pipe and adjustable from outside the exhaust pipe via an adjustment lever and a control rod which is articulated thereto and via a linear control motor. In order to avoid vibration-induced buzzing noise in the actuating device, a friction damper is connected into the force flow between the shaft and the control rod, in particular for system damping in the region of the exhaust flap. | 12-19-2013 |
20130340425 | TURBOCHARGER WITH FLEXIBLE INSTALLATION - One embodiment is an apparatus including a bearing housing mechanically coupled to a compressor housing on a first side and to a turbine housing on a second side. The compressor housing has a compressor outlet and the turbine housing has a fluid outlet. A first flow path fluidly connects the compressor outlet to a first circumferential channel formed between the bearing housing and the compressor housing. A fifth flow path fluidly connects the fluid outlet to a second circumferential channel formed between the bearing housing and the turbine housing. A third fluid flow path fluidly connects the first circumferential channel to the second circumferential channel. The apparatus further includes a fluid conduit that fluidly connects the fluid outlet to an actuator. | 12-26-2013 |
20130340426 | EXHAUST-GAS TURBOCHARGER HAVING A WATER-COOLED TURBINE HOUSING WITH AN INTEGRATED ELECTRIC WASTEGATE ACTUATOR - An exhaust-gas turbocharger includes a turbine housing and a wastegate which is disposed in the turbine housing. The turbine housing is water-cooled. An electric wastegate actuator is an integrated constituent part of the turbine housing. | 12-26-2013 |
20140020379 | Solenoid Valve - A solenoid valve includes a housing defining an interior cavity and at least a first and second port coupled to the housing and having associated passages configured to be in fluid communication with the interior cavity. The solenoid valve further includes a valve seat disposed about an opening between the first and second ports and interior cavity. The valve seat is integrally formed with the housing, such that the housing and valve seat are a single unitary structure. The solenoid valve further includes a bobbin supporting a coil and an armature and seal movably disposed within the bobbin and relative to the coil. The armature and seal are moveable between an open position and a closed position relative to the valve seat, wherein, in the closed position, the seal sealingly engages with the valve seat. | 01-23-2014 |
20140026559 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE WITH SUPERCHARGER - Disclosed is a control device that is for an internal combustion engine with a supercharger and capable of handling an operation resumption request during an internal combustion engine stop period in a situation where waste-gate valve control is exercised in consideration of pumping loss at the time of internal combustion engine stop. The internal combustion engine includes a turbocharger and a waste-gate valve. When the operation resumption request is generated while the internal combustion engine is stopped due to automatic stop control, the waste-gate valve fully opens as far as the engine speed is not lower than a predetermined revolution speed. Further, self-recovery control is exercised over the internal combustion engine (or more specifically, a fuel injection and ignition operation is resumed). Meanwhile, in a case where the engine speed is lower than the predetermined revolution speed when the operation resumption request is generated, the waste-gate valve fully closes. Subsequently, stop control, which has already been initiated, is continuously exercised to bring the internal combustion engine to a complete stop. The waste-gate valve reverts to an open position in preparation for the restart of the internal combustion engine. | 01-30-2014 |
20140026560 | RELIEF VALVE - A relief valve for turbines of exhaust turbochargers. Hot exhaust gas flows against this type of relief valves and the relief valves heat up significantly. Sensitive components such as the springs or the membrane can be damaged as a result. The relief valves are normally designed so that the membrane and a radiation panel are adjacent to a first chamber. Air is continuously guided through the first chamber in order to specifically cool the membrane and protect the membrane from excessive heating. | 01-30-2014 |
20140026561 | POWER SYSTEM WITH TURBINE BYPASS AND METHOD OF OPERATING A POWER SYSTEM - A power system includes an engine including an exhaust line, a turbine in the exhaust line, a bypass line connected to the exhaust line upstream of the turbine and comprising a controllable bypass valve, and a controller arranged to control opening of the bypass valve to bypass the turbine when for example, the engine is operated such that power is transmitted from the crankshaft to the turbine shaft, and/or at least one of an engine load, an engine speed, and an exhaust line pressure are below predetermined levels. A method of operating a power system is also disclosed. | 01-30-2014 |
20140041380 | MULTI-STAGED WASTEGATE - Embodiments for controlling boost pressure are provided. In one example, a method of controlling a turbocharger of an engine via a multi-staged wastegate comprises during a first condition, actuating a first stage of the wastegate based on boost pressure generated by the turbocharger, and actuating a second stage of the wastegate based on a temperature of a catalyst downstream of the turbocharger. In this way, catalyst heating and boost control may be provided by a common wastegate. | 02-13-2014 |
20140041381 | METHOD FOR DISCHARGING CONDENSATE FROM A TURBOCHARGER ARRANGEMENT - Methods and systems are provided for discharging condensate from a turbocharger arrangement of an internal combustion engine. Specifically, in on example, condensate may be drained from a condensate reservoir by opening a drain valve coupled to the condensate reservoir. Further, the drain valve may be closed responsive to engine operating conditions indicating the condensate reservoir has been completely drained. | 02-13-2014 |
20140041382 | BOOSTED IN-LINE VARIABLE-DISPLACEMENT ENGINE - An engine includes a first turbine fluidically coupled to a first group of adjacent cylinders, and a second turbine fluidically coupled to a second group of adjacent cylinders. In this engine, the cylinders of the first and second groups are arranged along a line. The engine also includes a variable valve-lift system configured to admit at least air to the first group of cylinders during reduced engine-load conditions, but to stop admitting air to the second group of cylinders during the reduced engine-load conditions. | 02-13-2014 |
20140047834 | METHODS AND SYSTEM FOR CONTROL OF A TWO-STAGE TURBOCHARGER - Various methods and systems are provided for regulating air flow through a two-stage turbocharger. In one embodiment, a method for an engine comprises, in response to a transient engine operating event, adjusting a provided amount of exhaust gas recirculation provided to an intake of the engine based on at least one of desired intake oxygen, one or more turbocharger conditions of a turbocharger, or a magnitude of the transient engine operating event. | 02-20-2014 |
20140047835 | TURBOCHARGER SYSTEM HAVING AN AIR-COOLED SOLENOID VALVE - A turbocharger system is provided. The turbocharger system includes a turbine positioned downstream of a combustion chamber and a turbine bypass conduit in fluidic communication with a turbine inlet and a turbine outlet. The turbocharger system further includes a wastegate positioned in the turbine bypass conduit, a wastegate actuator coupled to the wastegate adjusting a position of the wastegate, and an air-cooled solenoid valve coupled to wastegate actuator adjusting a position of the wastegate actuator, the air-cooled solenoid valve receiving cooling airflow from an intake conduit positioned upstream of a compressor mechanically coupled to the turbine. | 02-20-2014 |
20140053548 | SYSTEMS AND METHODS FOR A HYDRAULICALLY ACTUATED VALVE - Various methods and systems are provided for a hydraulically actuated engine valve. In one example, a method includes receiving an indication of a temperature of an exhaust flow exceeding a threshold temperature. The method further includes responsive to the indication, increasing a flow, in a hydraulically actuated valve system having a valve and an actuator in thermal communication with the exhaust flow, of hydraulic fluid through the actuator, to manage a temperature of the actuator. | 02-27-2014 |
20140053549 | Four-Way Exhaust Gas Valve - A four-way exhaust gas valve has a permanent inlet, a permanent outlet, a selectable inlet, a selectable outlet and a pivotable valve flap. The pivotable valve flap is arranged for switching between a first mode of operation, in which exhaust gas entering through the permanent inlet is guided directly to the permanent outlet, and a second mode of operation, in which exhaust gas entering through the permanent inlet is discharged through the selectable outlet and exhaust gas re-entering through the selectable inlet is discharged through the permanent outlet. | 02-27-2014 |
20140053550 | TWIN SCROLL TURBOCHARGER WITH EGR TAKEOFFS - Systems and methods for operating a twin scroll turbocharged engine with a junction configured to selectively control exhaust gas delivery to an exhaust gas recirculation system and a twin scroll turbine are provided. | 02-27-2014 |
20140053551 | METHOD AND SYSTEM ADJUSTING AN EXHAUST HEAT RECOVERY VALVE - A method for adjusting an exhaust heat recovery valve is presented. In one embodiment, the method may control an amount of boost provided by a turbocharger to an engine. | 02-27-2014 |
20140060041 | INTERNAL COMBUSTION ENGINE WASTEGATE VALVE CONTROLLER - A desired wastegate valve opening degree is set in accordance with a driving condition of an internal combustion engine; based on a detected rotation speed of the internal combustion engine and a set desired wastegate valve opening degree, it is determined whether or not supercharging for the internal combustion engine is required; and in the case where it is determined that the supercharging is not required, a driving current for a wastegate valve driving unit is stopped when the opening degree of the wastegate valve becomes a desired value. | 03-06-2014 |
20140060042 | CONTROL METHODS AND CONTROL APPARATUSES OF INTERNAL-COMBUSTION ENGINES - An internal-combustion engine has a turbo supercharger. A control apparatus calculates a fuel flow rate based on an injection quantity of fuel in the engine and a number of revolutions of the engine. The control apparatus calculates an upstream side pressure and temperature on an upstream side of a turbine impeller and a turbine flow rate. The control apparatus calculates an upper limit threshold value of an opening degree level of a variable nozzle of the turbo supercharger such that a turbine pressure ratio is equal to or less than a predetermined ratio on a basis of the turbine flow rate and a pressure ratio•turbine flow rate characteristic. The pressure ratio•turbine flow rate characteristic is pre-stored information indicating a relationship between the turbine pressure ratio, the turbine flow rate, and the opening degree level of the variable nozzle. The control apparatus controls an opening degree of the variable nozzle so as to be an opening degree equal to or less than the upper limit threshold value. | 03-06-2014 |
20140075933 | EXHAUST-GAS TURBOCHARGER HAVING A BALL-COCK WASTE-GATE VALVE WITH A STRESS-RELIEVED CRANK ARM - An exhaust-gas turbocharger has a turbine housing and a waste-gate valve of a ball-cock configuration which is arranged therein. The actuating crank of the waste-gate valve has a crank arm, to which the closing element is fastened, and a crank spindle which is connected integrally to the crank arm and is mounted in the turbine-housing wall. A stop shoulder for sealing the crank-spindle bearing and a flexural-stress relief pocket are provided in the transition region between the crank spindle and the crank arm, as a result of which the sealing action of the crank-spindle bearing and a more uniform distribution of flexural stresses in the transition region between the crank arm and the crank spindle are brought about and therefore an increased service life of the actuating crank is ensured with a simultaneously economical configuration. | 03-20-2014 |
20140102092 | METHOD FOR CONTROLLING A TURBOCHARGER ARRANGEMENT WITH AN ELECTRIC ACTUATOR AND SPRING - Various methods for controlling a wastegate with an electric actuator including a bias are provided. In one example, the actuator is supplied with a first current when moving a wastegate valve toward a fully open position, and is supplied with a second current when moving a wastegate toward a fully closed position. The methods may ensure appropriate supply of boost to an engine even in the event of wastegate degradation while enabling engine downsizing. | 04-17-2014 |
20140102093 | MULTISTAGE TURBOCHARGING SYSTEM - A multistage turbocharging system provided with a first turbocharger, a second turbocharger, and an exhaust bypass valve device, in which a seal surface of the opening of the bypass flow passage that is abutted by the bottom surface of the valve body of the exhaust bypass valve device has a higher oxidation resistance than the housing of the second turbocharger. | 04-17-2014 |
20140137553 | VACUUM-ACTUATED WASTEGATE - Embodiments for vacuum generation are provided. In one example, a method for an engine including a turbocharger having a compressor driven by a turbine comprises generating vacuum via exhaust flow through an ejector, and applying vacuum from the ejector to a wastegate actuator. In this way, vacuum produced via high-pressure exhaust resulting from boosted engine operation may be used to actuate the wastegate valve. | 05-22-2014 |
20140144134 | MULTI-STAGE TURBOCHARGER SYSTEM - A turbocharger system comprises a first relatively small high-pressure (HP) turbocharger ( | 05-29-2014 |
20140144135 | Suction Sealing for Turbocharger - A system can include a turbine housing that defines a turbine wheel space, an exhaust chamber in fluid communication with the turbine wheel space and a control shaft bore that extends from the exhaust chamber to an outer surface of the turbine housing; a blunt body positionable above the turbine wheel space where the blunt body includes an opening and a lumen in fluid communication with the opening; and a suction conduit connectable for fluid communication between the control shaft bore of the turbine housing and the lumen of the blunt body. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed. | 05-29-2014 |
20140150424 | TURBOCHARGER WASTEGATE AND METHOD FOR OPERATION OF A TURBOCHARGER WASTEGATE - A turbocharger wastegate is provided. The turbocharger wastegate comprises a cover plate actuatable in an open and closed position, the open position enabling exhaust gas flow through a turbine bypass conduit and the closed position inhibiting exhaust gas flow through the turbine bypass conduit and a vibration-dampening extension coupled to the cover plate radially extending beyond a radial periphery of the cover plate. Exhaust gas flow acting on the extension thus reduces vibration of the wastegate, thereby improving durability and reducing unwanted noise. | 06-05-2014 |
20140150425 | METHOD FOR CONTROLLING AN EXHAUST GAS RECIRCULATION SYSTEM - A method for controlling an exhaust gas recirculation system of an internal combustion engine includes: determining a setpoint power to be output by the internal combustion engine; and limiting an exhaust gas flow conducted through the exhaust gas recirculation system based on the setpoint power. | 06-05-2014 |
20140165555 | Wastegate - An assembly can include a wastegate with a wastegate arm and a plug portion positionable in a closed operational state and in open operational states and a turbine housing component that includes a wall extending axially away from a wastegate seat to establish a relationship for exhaust flow from a wastegate opening to an exhaust chamber with respect to the open operational states of the wastegate. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed. | 06-19-2014 |
20140165556 | ENGINE INCLUDING A WASTEGATE VALVE AND METHOD FOR OPERATION OF A TURBOCHARGER SYSTEM - A turbocharger system is described herein. The turbocharger system may include a cylinder head forming a portion of a combustion chamber and including an integrated exhaust manifold in fluidic communication with the combustion chamber and a wastegate valve positioned within the cylinder head including an inlet in fluidic communication with the integrated exhaust manifold and an outlet in fluidic communication with an outlet of a turbine positioned downstream of the integrated exhaust manifold. | 06-19-2014 |
20140165557 | EMISSIONS REDUCTIONS THROUGH REGENT RELEASE CONTROL - One embodiment is a method including determining whether an ammonia storage device has a stored quantity of ammonia, predicting an impending ammonia release from the ammonia storage device, determining a NO | 06-19-2014 |
20140174073 | EXHAUST PRESSURE ESTIMATION FROM WASTEGATE MOTOR CURRENT - In one embodiment, a method for an engine comprises adjusting an engine operating parameter based on exhaust pressure, the exhaust pressure estimated based on wastegate actuator motor current. | 06-26-2014 |
20140174074 | TWIN TURBOCHARGER WASTEGATE CONTROL - An engine system comprises a first turbocharger including a first wastegate, first wastegate actuator, and first turbocharger sensor, a second turbocharger including a second wastegate, second wastegate actuator, and second turbocharger sensor, and a controller configured to adjust the first wastegate actuator so that a parameter of the first turbocharger matches a parameter of the second turbocharger, based on output from the first and second turbocharger sensors. In this way, turbocharger output between the two turbochargers may be balanced. | 06-26-2014 |
20140174075 | ACTUATOR SHAFT BOOT - Wastegated turbochargers all use actuators to manipulate the wastegate valve which controls turbine wheel bypass of exhaust gas energy. The diaphragms in these actuators are susceptible to foreign material damage. This damage is minimized by the addition of a boot around the actuator shaft, preventing ingress of foreign materials and fluids which could be detrimental to actuator life. | 06-26-2014 |
20140174076 | SUPER-TURBOCHARGER HAVING A HIGH SPEED TRACTION DRIVE AND A CONTINUOUSLY VARIABLE TRANSMISSION - A super-turbocharger utilizing a high speed, fixed ratio traction drive that is coupled to a continuously variable transmission to allow for high speed operation is provided. A high speed traction drive is utilized to provide speed reduction from the high speed turbine shaft. A second traction drive provides infinitely variable speed ratios through a continuously variable transmission. Gas recirculation in a super-turbocharger is also disclosed. | 06-26-2014 |
20140174077 | TURBINE WASTEGATE - An assembly can include a turbine housing that includes a bore, a wastegate seat and a wastegate passage that extends to the wastegate seat; a bushing configured for receipt by the bore; a rotatable wastegate shaft configured for receipt by the bushing; a wastegate arm extending from the wastegate shaft; and a wastegate plug extending from the wastegate arm where the wastegate plug includes a contact portion that contacts the wastegate seat to cover the wastegate passage in a closed state and a shell portion that extends into the wastegate passage in the closed state and that defines a clearance with respect to the wastegate seat in an open state. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed. | 06-26-2014 |
20140190160 | METHOD AND SYSTEM FOR EXHAUST GAS RECIRCULATION - Methods and systems are provided for an engine including a first turbocharger having a first compressor and a second turbocharger having a second compressor. An EGR differential between the first compressor and the second compressor may be increased under a condensation condition, and decreased under a surge condition. The EGR differential may also be decreased when a compressor outlet temperature exceeds an outlet temperature threshold. | 07-10-2014 |
20140190161 | Supercharger Control Device for Internal Combustion Engine - A turbocharging system of an internal combustion engine includes compressor of a turbocharger disposed on an intake passage of an internal combustion engine and a turbine disposed on an exhaust passage of the internal combustion engine. A bypass passage connects an upstream side and a downstream side of the turbine in the exhaust passage together. A wastegate valve, which is disposed on the bypass passage, opens and closes the bypass passage according to turbocharging pressure of the compressor. An accumulator, which accumulates exhaust gas pressure, is connected to a downstream side of the wastegate valve in the bypass passage. A recirculation passage connects the accumulator and an upstream side of the turbine together, and a recirculation valve, which opens and closes the recirculation passage based on an output request, is deposed on the recirculation passage. | 07-10-2014 |
20140208739 | METHOD AND SYSTEM FOR EGR CONTROL FOR AMBIENT CONDITIONS - Various methods and systems are provided for adjusting a flow of exhaust gas in an exhaust gas recirculation system. In one embodiment, a method for an engine comprises controlling a flow of exhaust gas through an exhaust gas recirculation system of an engine system based on a choke level of a turbocharger. For example, the flow of exhaust gas in the exhaust gas recirculation system may be reduced to within a threshold of a choke level of the turbocharger, in response to an ambient condition. | 07-31-2014 |
20140245736 | TWO-STAGE SUPERCHARGING DEVICE - A two-stage supercharging device for an internal combustion engine having a radial high-pressure turbine and an axial low-pressure turbine. The high-pressure turbine has spiral housing with an exhaust-gas inlet connecting piece connected to an exhaust line and via which an exhaust-gas flow flows from the internal combustion engine to the high-pressure turbine. A partial flow of the exhaust-gas flow can flow past the high-pressure turbine in a bypass unit and can be adjusted by a shut-off valve. The bypass unit includes a branch line and an annular duct housing which are integrally formed on the spiral housing as a single-piece component. The branch line branches off the exhaust-gas inlet connecting piece at a branching point and issues into an annular duct formed by the annular duct housing. The shut-off valve is arranged, at the branching point. The partial exhaust-gas flow flows through the branch line into the annular duct and from there through an axially arranged annular gap into an exhaust-gas duct. There, the partial exhaust-gas flow merges with a main exhaust-gas flow emerging from the high-pressure turbine and flows together therewith into the low-pressure turbine. | 09-04-2014 |
20140260241 | METHODS AND SYSTEMS FOR BOOST CONTROL - Methods and systems are provided for improving boost response. A continuously variable compressor recirculation valve and a wastegate are adjusted in complementary frequency bands to move compressor operation away from a surge limit and reduce boost delivery errors. An intake throttle is also concurrently adjusted to offset manifold air-flow rate errors resulting from the wastegate or recirculation valve adjustments. | 09-18-2014 |
20140290239 | EXHAUST GAS RECIRCULATION APPARATUS FOR ENGINE - An EGR apparatus includes an EGR passage to allow part of exhaust gas discharged from a combustion chamber to flow in an intake passage and recirculate back to the combustion chamber and an EGR valve to regulate EGR gas in the EGR passage. The EGR valve includes a valve seat, a valve element, and a step motor. An ECU calculates a target correction value corresponding to an operating condition of an engine, cuts off energization to the step motor in order to hold the EGR valve at a predetermined opening degree during operation thereof, and then restarts energization to the step motor, calculates an energization cutoff correction value corresponding to an elapsed time from energization cutoff, and corrects the target correction value by the calculated energization cutoff correction value in order to control the EGR valve to the target opening degree. | 10-02-2014 |
20140290240 | ACTUATING APPARATUS FOR A TURBINE OF AN EXHAUST GAS TURBOCHARGER - In an actuating device for a turbine of an exhaust gas turbocharger, in particular for controlling the charging pressure of the exhaust gas turbocharger, wherein the exhaust gas turbocharger has an actuating shaft in the form of a first bolt element via which a valve element of the turbine is movable between a dosed position and an open position and which is non-rotatably connected to a connecting element that is pivotally coupled to a second bolt element by way of which the first bolt element can be pivoted about the axis of rotation by a translatory motion of an actuating element, both bolt elements are engaged on at least one first side of the connecting element via a single integral intermediate element for retaining the connecting element in engagement with the bolt elements. | 10-02-2014 |
20140298799 | EXHAUST MANIFOLD - An exhaust manifold for at least a portion of an internal combustion engine having a defined number of combustion chambers includes a plurality of inlet ports and four outlet ports. A first pair of the four outlet ports are disposed in gas flow communication with a first subset of the plurality of inlet ports, and a second pair of the four outlet ports different from the first pair are disposed in gas flow communication with a second subset of the plurality of inlet ports different from the first subset. | 10-09-2014 |
20140298800 | EXHAUST LEAKAGE MANAGEMENT - Embodiments may provide an exhaust gas management arrangement for an engine. The exhaust gas management arrangement may include a port disposed to capture an exhaust gas leaked from a movable portion of an exhaust gas flow directing mechanism. The arrangement may also include a passage to direct the leaked exhaust gas to a crankcase of the engine. | 10-09-2014 |
20140298801 | EXHAUST GAS RECIRCULATION APPARATUS FOR ENGINE - An EGR apparatus includes an EGR passage to allow part of exhaust gas discharged from a combustion chamber to flow as EGR gas into an intake passage and recirculate back to the combustion chamber, and an EGR valve to regulate the EGR gas in the EGR passage. A control unit is arranged to calculate a target opening degree of the EGR valve according to an operating condition after start-up of an engine and a warm-up state of the engine comes to an operation start state of the EGR valve, and correct the calculated target opening degree according to the warm-up state to control the EGR valve based on the corrected target opening degree during a period from when the EGR valve comes to the operation start state to when warm-up of the EGR valve is completed. | 10-09-2014 |
20140298802 | Control Device for Internal Combustion Engine - In internal combustion engines that return exhaust gas branching from downstream section of a turbine to an upstream section of a compressor during exhaust gas return in a supercharged state, the present invention closes an air bypass valve that bypasses the compressor while the vehicle is decelerating, and also opens a wastegate valve that bypasses or diverts gases away from the turbine in order to resolve a phenomenon in which the amount of exhaust gas temporarily increases and the exhaust gas cannot be supplied at a stable target value while the vehicle is decelerating due to the length of the path from the convergence section where the new air meets the EGR, to the cylinder, and due to the opening of the air bypass valve of the air bypass path joining the top and bottom of the compressor during deceleration. | 10-09-2014 |
20140318121 | ENGINE WITH PULSE-SUPPRESSED DEDICATED EXHAUST GAS RECIRCULATION - An engine assembly includes an intake assembly, a spark-ignited internal combustion engine, and an exhaust assembly. The intake assembly includes a charge air cooler disposed between an exhaust gas recirculation (EGR) mixer and a backpressure valve. The charge air cooler has both an inlet and an outlet, and the back pressure valve is configured to maintain a minimum pressure difference between the inlet of the charge air cooler and an outlet of the backpressure valve. A dedicated exhaust gas recirculation system is provided in fluid communication with at least one cylinder and with the EGR mixer. The dedicated exhaust gas recirculation system is configured to route all of the exhaust gas from the at least one cylinder to the EGR mixer for recirculation back to the engine. | 10-30-2014 |
20140318122 | Blow Off Valve and Related System and Method - The present invention is directed to a blowoff valve assembly that utilizes a non-coiled spring for biasing a valve member in a compact space. The invention is further directed to a turbocharger system utilizing a blowoff valve with a non-coiled spring. | 10-30-2014 |
20140325982 | WASTEGATE VALVE CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE AND WASTEGATE VALVE CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE - Provided are a wastegate valve control device for an internal combustion engine and a wastegate valve control method for an internal combustion engine, which are capable of controlling a wastegate valve (WGV) to a desired open/closed state at low cost even when a reference position of the WGV is shifted from a full-closure position of the WGV. When a target WGV opening (control target value) is equal to or smaller than a threshold opening, a given opening is added to or subtracted from the target WGV opening while the WGV is controlled to perform an opening/closing operation based on the target WGV opening. By monitoring a change in throttle upstream pressure or driving current of a WGV actuator, an optimal target WGV opening corresponding to the shift of the reference position with respect to the full-closure position of the WGV is determined. | 11-06-2014 |
20140325983 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - A control apparatus for an internal combustion engine of this invention includes: a turbo-supercharger; an exhaust gas purifying catalyst disposed in an exhaust passage on the downstream side of a turbine; and a WGV capable of opening and closing an exhaust bypass passage that bypasses the turbine. At the time of a catalyst warm-up request, catalyst warm-up control that opens the WGV and retards the ignition timing is executed. If the sensitivity of control of an intake air amount by a throttle valve is high, the intake air amount is controlled using the throttle valve during execution of the catalyst warm-up control. If the control sensitivity is low, the intake air amount is controlled using the WGV during execution of the catalyst warm-up control. When the WGV degree of opening is controlled toward a closed side during execution of the intake air amount control using the WGV, a retard amount of the ignition timing is increased. | 11-06-2014 |
20140331667 | INTERNAL COMBUSTION ENGINE WITH DEACTIVATABLE CYLINDER, AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE - A method and system is provided for a turbocharged multi-cylinder internal combustion engine comprising a two-channel turbine and at least two groups of cylinders, wherein one group of cylinders is switchable responsive to an engine load over a threshold. Exhaust lines of each group of cylinders are arranged in a targeted manner to couple with the turbine such that the switchable group is attached to one channel and the active group is attached to the other channel to reduce the difference in distances that pressure pulses travel, wherein a shut-off element is provided in the channel attached to the switchable group and may be moved to block exhaust flow through the channel when the cylinders are deactivated, thus improving the partial deactivation and turbocharging characteristics of the engine. | 11-13-2014 |
20140338327 | Spark ignition internal combustion engine having intake valves with variable actuation and delayed closure - A spark-ignition supercharged internal-combustion gasoline engine is equipped with a system for variable actuation of the intake valves including a pressurized fluid chamber set between intake valve and a respective control cam, and an electrically actuated valve, the opening of which vents the pressure chamber so as to cause rapid closing of the valve, as a result of the respective elastic return means, even when the respective cam would tend to keep the valve open. The variable-valve-actuation system is used in combination with control cams of the intake valves shaped in such a way as to generate an intake valve lift profile including a boot portion with substantially constant lift. The boot portion is provided in the final part of the opening cycle of the intake valve, after bottom dead center. | 11-20-2014 |
20140345273 | WASTEGATE VALVE AND EXHAUST GAS TURBOCHARGER EQUIPPED WITH WASTEGATE VALVE - It is intended to provide a wastegate valve which can achieve even and stable seating of the valving element on the valve seat and which can suppress vibration of the valving element, as well as a exhaust gas turbocharger equipped with such wastegate valve. A valving element | 11-27-2014 |
20140360178 | METHOD FOR DETERMINING WASTEGATE VALVE LIFT - Various systems and methods for determining the lift of a wastegate valve are provided. For example, a method comprises determining a relation between an actuator position and a lift of a wastegate valve at engine start-up in a temperature range. The relation may be modified based on a difference between a desired boost level and an actual boost level. | 12-11-2014 |
20140360179 | METHOD AND SYSTEM FOR BINARY FLOW TURBINE CONTROL - Methods and systems are provided for adjusting the opening of a scroll valve of a binary flow turbine. Scroll valve adjustments are used at different engine operating conditions to improve engine performance and boost response. Scroll valve adjustments are coordinated with wastegate and EGR valve adjustments for improved engine control. | 12-11-2014 |
20140360180 | METHOD AND SYSTEM FOR BINARY FLOW TURBINE CONTROL - Methods and systems are provided for adjusting the opening of a scroll valve of a binary flow turbine. Scroll valve adjustments are used at different engine operating conditions to improve engine performance and boost response. Scroll valve adjustments are coordinated with wastegate and EGR valve adjustments for improved engine control. | 12-11-2014 |
20140360181 | METHOD AND SYSTEM FOR BINARY FLOW TURBINE CONTROL - Methods and systems are provided for adjusting the opening of a scroll valve of a binary flow turbine. Scroll valve adjustments are used at different engine operating conditions to improve engine performance and boost response. Scroll valve adjustments are coordinated with wastegate and EGR valve adjustments for improved engine control. | 12-11-2014 |
20140360182 | METHOD AND SYSTEM FOR BINARY FLOW TURBINE CONTROL - Methods and systems are provided for adjusting the opening of a scroll valve of a binary flow turbine. Scroll valve adjustments are used at different engine operating conditions to improve engine performance and boost response. Scroll valve adjustments are coordinated with wastegate and EGR valve adjustments for improved engine control. | 12-11-2014 |
20140360183 | METHOD AND SYSTEM FOR BINARY FLOW TURBINE CONTROL - Methods and systems are provided for adjusting the opening of a scroll valve of a binary flow turbine. Scroll valve adjustments are used at different engine operating conditions to improve engine performance and boost response. Scroll valve adjustments are coordinated with wastegate and EGR valve adjustments for improved engine control. | 12-11-2014 |
20140360184 | METHOD AND SYSTEM FOR BINARY FLOW TURBINE CONTROL - Methods and systems are provided for adjusting the opening of a scroll valve of a binary flow turbine. Scroll valve adjustments are used at different engine operating conditions to improve engine performance and boost response. Scroll valve adjustments are coordinated with wastegate and EGR valve adjustments for improved engine control. | 12-11-2014 |
20140360185 | METHOD AND SYSTEM FOR BINARY FLOW TURBINE CONTROL - Methods and systems are provided for adjusting the opening of a scroll valve of a binary flow turbine. Scroll valve adjustments are used at different engine operating conditions to improve engine performance and boost response. Scroll valve adjustments are coordinated with wastegate and EGR valve adjustments for improved engine control. | 12-11-2014 |
20140366530 | VARIABLE FLOW VALVE MECHANISM AND VEHICLE TURBOCHARGER - In a waste gate valve, a coil spring being expandable and contractible in the axial direction of a valve shaft is provided between a washer and an attachment tongue in an axial direction of a valve shaft of a valve. The coil spring is made of a heat-resistant alloy or a ceramic. An annular guard wall is formed on a front surface of the attachment tongue by counter boring in such a way as to surround the coil spring. | 12-18-2014 |
20140366531 | VARIABLE FLOW VALVE MECHANISM AND VEHICLE TURBOCHARGER - In a waste gate valve, an annular spacer is provided between a washer and an attachment tongue in an axial direction of a valve shaft of a valve. The spacer is made of a graphite material. An annular guard wall is formed on a back surface of the washer in such a way as to surround the spacer. | 12-18-2014 |
20140373529 | Exhaust-gas control device for an internal combustion engine - An exhaust-gas control device for an internal combustion engine includes a common valve body for controlling a flow in an exhaust-gas channel and for controlling a flow in a bypass channel. The valve body is rotatably arranged in a housing and controls outlet openings of the exhaust-gas channel and of the bypass channel. In one rotational position, the valve body closes an inlet channel by a base and thus interrupts the flow. At the same time, the exhaust-gas channel and the bypass channel are separated from each other. | 12-25-2014 |
20150013330 | SYSTEM AND METHOD FOR VARIABLE TONGUE SPACING IN A MULTI-CHANNEL TURBINE IN A CHARGED INTERNAL COMBUSTION ENGINE - An internal combustion engine comprising a dual flow turbocharger includes an annular support with at least one tongue-like end wherein the annular support is adjustable in a translational fashion along the turbines axis of rotation. Moving the annular support influences the degree of separation behavior of turbine channels by varying a tongue spacing to the rotor. | 01-15-2015 |
20150013331 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - A control apparatus for an internal combustion engine of the present invention switches a steady-state characteristic that defines a relation between an engine load factor and a throttle opening degree between a high atmospheric pressure steady-state characteristic and a low atmospheric pressure steady-state characteristic in accordance with whether or not the atmospheric pressure is higher than a predetermined value. According to the low atmospheric pressure steady-state characteristic, a throttle opening degree corresponding to an identical engine load factor is set to a smaller value compared to the high atmospheric pressure steady-state characteristic in a medium load region, and the throttle opening degree is set so as to increase as the engine load factor increases towards a full load in a region on the side of a higher load factor than the medium load region. | 01-15-2015 |
20150020523 | Wastegates and Wastegate Components - A wastegate assembly can include a plug configured to plug a wastegate opening where the plug includes a concave, at least partially spherical surface; a shaft configured for receipt by a bore in a wastegate chamber; and a rotatable arm extending from the shaft where the arm includes a convex, at least partially spherical surface configured for contacting the concave, at least partially spherical surface of the plug for a closed orientation of the plug with respect to the wastegate opening. | 01-22-2015 |
20150033732 | AIR COMPRESSING DEVICE OF BIFUEL ENGINE - A supercharging device of a bifuel engine using a gas fuel and a liquid fuel as fuels, and having a supercharger supercharging or turbocharger turbocharging a large amount of intake air into a combustion chamber of the engine by driving a compressor arranged in an intake passage of the engine by an output shaft of the engine or an electric motor, performs the compressing by the compressor of the supercharger or turbocharger when the gas fuel is used, and does not perform the supercharging or turbocharging by the compressor of the supercharger or turbocharger when the liquid fuel is used. | 02-05-2015 |
20150033733 | WASTEGATE VALVE DEVICE - A wastegate valve device for a supercharging device may include a valve disc, which is connected to an actuator device via a drive train. The wastegate valve device may include at least one damping element arranged between the valve disc and the actuator device. The drive train may have an inner section, which is arranged inside a fluid path of a driving fluid. The inner section may include a spindle arm, which is connected to a spindle and to the valve disc. The spindle may be connected to an operating arm, which is arranged in an outer section of the drive train. The operating arm may be arranged outside the fluid path, and may be connected to an operating rod, which is connected to the actuator device. The damping element may be arranged in a connection region of the drive train. | 02-05-2015 |
20150040560 | INTERNAL COMBUSTION ENGINE SYSTEM AND METHOD FOR INCREASING THE TEMPERATURE IN AT LEAST ONE PART OF THE INTERNAL COMBUSTION ENGINE SYSTEM - An internal combustion engine system includes a cylinder block with a plurality of cylinders, a gas intake manifold for providing at least air to the cylinder block and an exhaust gas manifold for exiting the exhaust gas from the cylinder block, wherein the exhaust gas manifold includes at least a main exhaust gas outlet and a waste gate exhaust gas outlet, wherein the main exhaust gas outlet is connected to a main exhaust gas pipe for guiding the exhaust gas to a main exhaust gas after treatment system and the waste gate exhaust gas outlet is connected to a waste gate exhaust gas pipe, and wherein the waste gate exhaust gas pipe is reconnected to the main exhaust gas pipe upstream of the main exhaust gas after treatment system and includes at least one waste gate exhaust gas after treatment unit, such as an oxidation catalyst such as a diesel oxidation catalyst, for catalytically treating the exhaust gas streaming through the waste gate exhaust gas pipe, and to a method for increasing the temperature in an internal combustion engine system. | 02-12-2015 |
20150040561 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - The minimum value for the degree of opening of a wastegate valve, wherein the flow volume of exhaust air flowing via a wastegate port when the degree of opening of the wastegate valve is changed toward the open side stops increasing, is defined as a first prescribed degree of opening An electronic control device controls the degree of opening of the wastegate valve on the basis of the engine operating state, and when the vehicle is running steadily at a high speed, that is, when the degree of opening of the wastegate valve which has been set on the basis of the engine operating state is equal to or greater than the first prescribed degree of opening, the degree of opening of the wastegate valve is varied between values equal to or greater than the first prescribed degree of opening. | 02-12-2015 |
20150047344 | Engine Control Method and System - The present invention provides an engine control method, for each duty cycle of the engine, said method comprises: receiving a boost pressure of an engine turbocharger; receiving an engine speed; looking up a static control parameter lookup table according to the engine speed and boost pressure so as to select a control parameter indicating the air flow requirement; and sending the selected control parameter to an engine control unit so as to control the engine using the air flow requirement indicated by said control parameter. | 02-19-2015 |
20150059337 | WASTEGATE VALVE CONTROL FOR DEGRADED MEASUREMENT - Various systems and methods are provided for controlling a wastegate in the presence of a degraded wastegate valve sensor. In one example, responsive to feedback from a wastegate valve sensor being unavailable, a wastegate valve is moved to an at least partially open position in part via exhaust pressures responsive to a desired boost being within a first range. Responsive to feedback from the wastegate valve sensor being unavailable, the wastegate valve is moved toward a fully closed position at a rate responsive to boost pressure dynamics responsive to the desired boost being within a second, different range. | 03-05-2015 |
20150059338 | DETERMINATION OF WASTEGATE VALVE POSITION - Various methods for determining the fully closed position of a wastegate valve are provided. In one example, a non-closed position command for a wastegate valve in a low-lift region relative to a valve seat is received. Prior to executing the position command, the wastegate valve is only temporarily closed to thereby determine a fully closed position. | 03-05-2015 |
20150075159 | SUPERCHARGED INTERNAL COMBUSTION ENGINE WITH EXHAUST-GAS TURBOCHARGERS ARRANGED IN SERIES AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE - A supercharged internal combustion engine, comprising a high-pressure turbine connected to a channel of a low-pressure turbine and a bypass line, branching from upstream the high-pressure turbine, connectable to the channels of the low-pressure turbine via a control element positioned within the bypass line, is provided. Adjusting the control element fluidly connects each of the channels of the low-pressure turbine to the bypass line responsive to the exhaust-gas flow rate to optimize the performance of the engine. | 03-19-2015 |
20150082788 | WASTEGATE VALVE POSITION CORRECTION - Various methods for compensating a deflected linkage in a wastegate arrangement are provided. In one example, current is applied to an actuator to move a wastegate valve coupled through a linkage to the actuator for diverting gasses from a turbocharger. The position of the actuator is indicated, and a correction to said indicated actuator position is applied compensating for deflection of the linkage based at least on said applied current. Said applied current is adjusted when said corrected actuator position reaches a position corresponding to a desired valve position. | 03-26-2015 |
20150082789 | TWO-STAGE TURBOCHARGER SYSTEM - A two-stage turbocharger system for an internal combustion engine is disclosed. The turbocharger system includes a high pressure turbine coupled to an exhaust manifold of the internal combustion engine, and a low pressure turbine having an inlet coupled to the high pressure turbine and an outlet coupled to an exhaust system of the engine. The turbocharger further includes a low pressure compressor having an inlet coupled to environment and an outlet coupled to a high pressure compressor. The high pressure compressor is coupled to an intake manifold of the internal combustion engine. The high pressure turbine is provided with a high pressure by-pass line having a high pressure controlled by-pass valve. The low pressure turbine is provided with a low pressure by-pass line having a low pressure controlled by-pass valve. A controlled valve is provided between the high pressure turbine and the low pressure turbine. | 03-26-2015 |
20150089938 | EXHAUST GAS RECIRCULATION CONTROL DEVICE OF ENGINE - An exhaust gas recirculation control device of an engine is provided. The device includes: an exhaust turbocharger having a turbine disposed in an exhaust passage and a compressor disposed in an intake passage; a low-pressure EGR passage connecting a part of the exhaust passage downstream of the turbine to a part of the intake passage upstream of the compressor; a low-pressure EGR valve disposed in the low-pressure EGR passage and for changing a cross-sectional area of the low-pressure EGR passage; an exhaust shutter valve disposed downstream of the connected part of the exhaust passage to the low-pressure EGR passage, and for changing a cross-sectional area of the exhaust passage; a valve control device for controlling openings of the low-pressure EGR valve and the exhaust shutter valve; and a gear range detector for detecting a gear range of a transmission of a vehicle in which the engine is installed. | 04-02-2015 |
20150089939 | SYSTEM FOR PROTECTING A TURBO-SUPERCHARGING SYSTEM, IN PARTICULAR FOR PREVENTING A RESPECTIVE DAMAGE WHEN A PRESSURE OF A RESPECTIVE LUBRICATING OIL IS INSUFFICIENT - System for protecting a turbo-supercharging unit (T, C), in particular for preventing a respective damage when a pressure of a respective lubrication oil is insufficient, comprising first bypass means (OV, GB) of exhaust gas, controlled as a function of a pressure of the lubricating oil of the turbo-supercharging unit (T, C), in order to allow to at least a part of the exhaust gas to bypass the turbine (T) when the pressure is below a first predetermined threshold. | 04-02-2015 |
20150089940 | SYSTEM AND METHOD FOR ENGINE CONTROL - A method for controlling an engine includes the steps of, in response to a transient operating event, determining a first amount of exhaust gas recirculation (EGR) that if provided to an intake of the engine would avoid turbocharger compressor surge in a turbocharger, determining a second amount of EGR that if provided to the intake would avoid turbocharger compressor choke in the turbocharger, and determining a third amount of EGR that if provided to the intake would avoid engine smoking, and adjusting EGR provided to the intake of the engine in accordance with the determined first, second, and third amounts. | 04-02-2015 |
20150096295 | SYSTEM AND METHOD FOR ESTIMATING A TURBINE OUTLET TEMPERATURE OR A TURBINE INLET TEMPERATURE BASED ON A WASTEGATE COMMAND - A system according to the principles of the present disclosure includes a boost control module and a temperature estimation module. The boost control module generates a wastegate command signal to control a position of a wastegate and thereby adjust an amount of exhaust gas allowed to bypass a turbine of a turbocharger through the wastegate. The temperature estimation module estimates at least one of a first temperature downstream from the turbine and a second temperature upstream from the turbine based on the wastegate command signal. | 04-09-2015 |
20150113981 | TURBOCHARGER CONTROLLER - A turbocharger controller includes a turbocharger compressor temperature module having a compressor inlet air temperature input, and a turbocharger compressor pressure module including a compressor inlet pressure input and a compressor outlet pressure input. A memory module includes a compressor outlet temperature calibration map and a compressor pressure ratio look-up table. A turbocharger boost pressure ratio control module is operatively connected to the turbocharger compressor temperature module, the turbocharger compressor pressure module, and the memory module. The turbocharger boost pressure ratio control module is configured to selectively compare compressor outlet pressure and compressor inlet pressure with values in the compressor ratio look-up table to determine a turbocharger boost pressure set point establishing a desired compressor outlet temperature. | 04-30-2015 |
20150121862 | ACTIVE EXHAUST PULSE MANAGEMENT - Methods and systems are provided for adjusting a volume control valve attached to a branch of a split exhaust manifold in a boosted engine system. Volume control valve adjustments are used at different engine operating conditions to improve engine performance and boost response. One example method includes closing the volume in response to a tip-in when increased boost is needed for exhaust turbine spool-up. | 05-07-2015 |
20150128585 | ENGINE CONTROL APPARATUS AND METHOD - An engine control apparatus controls an engine, by generating first and second instruction values to adjust an MAF of fresh air supplied to the engine and an MAP indicating a pressure of air supplied to the engine to respective target values, based on measured values of a first sensor which detects the MAF and a second sensor which detects the MAP, regardless of limiting conditions related to a totally closed or fully open state of an EGR and an VNT, switching a supplying destination of the measured values of the first and second sensors for a certain time after the generated first or second instruction value saturates, and generating the first and second instruction values to adjust the MAF and the MAP to the respective target values, based on the measured values of the first and second sensors, under the limiting conditions, when the switching occurs. | 05-14-2015 |
20150128586 | METHOD TO CONTROL A WASTEGATE VALVE IN A TURBOCHARGED INTERNAL COMBUSTION ENGINE - A method to control the wastegate valve wastegate in a turbocharged internal combustion engine suited to allow air to directly flow from the intake manifold to the exhaust manifold; the method providing for determining a control law which provides an objective opening of an actuator controlling the wastegate valve as a function of a contribution in the absence of air flow directly from the intake manifold to the exhaust manifold and a contribution as a function of the quantity of air directly flowing from the intake manifold to the exhaust manifold. | 05-14-2015 |
20150135706 | INTERNAL COMBUSTION ENGINE AND CONTROL METHOD THEREOF - An electronic control unit (ECU) with a surge avoidance unit, wherein, when a turbocharge compressor enters a surging state during vehicle deceleration, the ECU acquires a first target opening degree of a nozzle vane in a turbine of the turbocharger based on an operation state and a first opening map as a surge avoidance control, controls the nozzle vane to a surge avoiding first target opening degree, if the first target opening degree is smaller than a predetermined surge avoiding first target opening degree, and controls the nozzle vane to the first target opening degree, if the first target opening degree is not less than the surge avoiding first target opening degree. | 05-21-2015 |
20150143807 | ENGINE HAVING TURBO CHARGER - An engine having a turbocharger may include an intake route control valve disposed on a first intake line that supplies outside air to an intake manifold, a second intake line bypassing the intake route control valve, a first exhaust line in which exhaust gas from an exhaust manifold flows, a second exhaust line bypassing an exhaust route control valve disposed on the first exhaust line to join the first exhaust line, a turbocharger operated by exhaust gas in the second exhaust line to compress intake air in the second intake line, and a first catalyst unit disposed at a downstream side of the exhaust route control valve on the first exhaust line. The first catalyst unit may include a first brick disposed at an upstream side and a second brick disposed at a downstream side of the first brick with a predetermined distance, and the second exhaust line joins the first exhaust line at a portion between the first brick and the second brick. | 05-28-2015 |
20150292395 | Wastegate valve and method for installing a wastegate valve into the turbine housing of an exhaust-gas turbocharger - A wastegate valve includes a wastegate flap and a wastegate spindle, in which the wastegate flap and the wastegate spindle are constituent parts of a single, unipartite molded body. The molded body furthermore has a connecting arm which is disposed between the wastegate flap and the wastegate spindle and which has a plasticization region. A method for installing an exhaust-gas turbocharger wastegate valve of this type into a turbine housing which has a wastegate duct, is also provided. | 10-15-2015 |
20150292420 | ELECTRIC ACTUATOR TEMPERATURE ESTIMATION - Various methods for estimating electric actuator temperature during certain operational windows are provided. In one example, a method comprises adjusting an electric motor to position a wastegate at a desired wastegate position, while during selected conditions, deviating from the desired position by at least one full half-turn of the motor and indicating motor temperature based on winding resistance averaged over the full half-turn. | 10-15-2015 |
20150292422 | APPARATUS FOR DETECTING INTER-CYLINDER AIR-FUEL RATIO IMBALANCE IN MULTI-CYLINDER INTERNAL COMBUSTION ENGINE - An apparatus for detecting inter-cylinder air-fuel ratio imbalance in an engine is provided. The apparatus includes a turbocharger, a bypass passage configured to bypass a turbine of the turbocharger, a waste gate valve configured to selectively close the bypass passage, an air-fuel ratio sensor installed in a portion of an exhaust passage which portion is located on a downstream side of a junction between a downstream side of the turbine and a downstream side of the bypass passage, and a determination unit programmed to compare a value of a degree of fluctuation in an output from the air-fuel ratio sensor or a parameter correlated therewith with a predetermined threshold to perform inter-cylinder air-fuel ratio imbalance determination. The determination unit is programmed not to perform the imbalance determination when an opening degree of the waste gate valve is equal to or higher than a predetermined reference value. | 10-15-2015 |
20150300243 | METHOD FOR ADJUSTING EXHAUST GAS TEMPERATURE AND TURBINE WITH BYPASS ARRANGEMENT - A turbocharger includes a turbine comprising a scroll passage including at least first and second portions, a gas outlet extending axially from the scroll passage, a turbine wheel including one or more blades disposed in the gas outlet, and structure for establishing a bypass flow between the first and second portions of the scroll passage or for altering gas flow through the turbine. A method for adjusting exhaust gas temperature is also provided. | 10-22-2015 |
20150308330 | TURBOCHARGER WITH VARIABLE-VANE TURBINE NOZZLE HAVING A GAS PRESSURE-RESPONSIVE VANE CLEARANCE CONTROL MEMBER - A turbocharger includes a variable turbine nozzle formed between first and second walls. A variable-vane assembly has a fixed nozzle ring and a plurality of circumferentially spaced vanes disposed in the nozzle and rotatably mounted on the nozzle ring such that the vanes are pivotable. The nozzle ring defines the first wall of the turbine nozzle, each vane having a first end adjacent the first wall and a second end adjacent the second wall. The second wall of the turbine nozzle is formed by a gas pressure-responsive member that is arranged to be axially movable relative to the vanes. A first stop is positioned so that the gas pressure-responsive member is urged against the first stop by a differential gas pressure exerted on the gas pressure-responsive member so that there is a non-zero first value for a clearance between the second ends of the vanes and the second wall of the turbine nozzle. | 10-29-2015 |
20150308358 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - A time point t | 10-29-2015 |
20150308359 | METHOD AND SYSTEM FOR BINARY FLOW TURBINE CONTROL - Methods and systems are provided for adjusting the opening of a scroll valve of a binary flow turbine. Scroll valve adjustments are used at different engine operating conditions to improve engine performance and boost response. Scroll valve adjustments are coordinated with wastegate and EGR valve adjustments for improved engine control. | 10-29-2015 |
20150315961 | MIXED FLOW TWIN SCROLL TURBOCHARGER WITH SINGLE VALVE - A turbocharger ( | 11-05-2015 |
20150316005 | METHOD TO IMPROVE BLOWTHROUGH AND EGR VIA SPLIT EXHAUST - Methods and systems are provided for a boosted engine having a split exhaust system. In one example, a method comprises directing exhaust from a first cylinder group to one or more of a pre-compressor location, a post-compressor location, and an exhaust turbine, and directing exhaust from a second cylinder group to one or more of the pre-compressor location, and the exhaust turbine. Engine efficiency and knock control may be enhanced by directing exhaust gases to different locations based on engine operating conditions. | 11-05-2015 |
20150322848 | SYSTEMS AND METHODS FOR AN ENGINE - Methods and systems for an engine are provided. In one example, a system for an engine comprises an exhaust passage through which exhaust gas is configured to flow from the engine, a turbocharger with a turbine positioned in the exhaust passage, an exhaust gas treatment system disposed in the exhaust passage upstream of the turbine and including at least one exhaust gas treatment device and a bypass with a bypass valve, the bypass valve configured to be adjusted to reduce exhaust gas flow through the exhaust gas treatment system in response to a transient engine operating condition, and an exhaust gas recirculation system coupled between the exhaust passage and an intake passage of the engine, the exhaust gas recirculation system including an exhaust gas recirculation passage and at least one exhaust gas recirculation valve, an inlet of the exhaust gas recirculation system positioned upstream of the exhaust gas treatment system. | 11-12-2015 |
20150322856 | MULTI-STAGE TURBOCHARGER SYSTEM - A turbocharger system comprises a first relatively small turbocharger and a second relatively large turbocharger connected in series and an exhaust gas flow control valve. The exhaust control valve has an inlet port communicating with the exhaust gas flow upstream of the first turbine a first outlet port communicating with the exhaust flow downstream of said first turbine but upstream of said second turbine, and a second outlet port communicating with the exhaust flow downstream of said second turbine. The valve is operable to selectively permit or block flow through the first and second outlet ports. | 11-12-2015 |
20150337717 | MULTI-STAGE TURBOCHARGER SYSTEM - A turbocharger system comprises a first relatively small high-pressure (HP) turbocharger and a second relatively large low pressure (LP) turbocharger. The turbine of the LP turbocharger is connected in series downstream of the turbine of the HP turbocharger. A first exhaust bypass flow passage provides a bypass flow path around the HP turbine. A second exhaust bypass flow passage provides a bypass flow path around the LP turbine. A rotary valve is located at a junction of the first and second bypass flow passages and a first exhaust gas flow passage. The rotary valve comprises a valve rotor which is rotatable selectively to permit or block flow to the LP turbine and to permit or block flow to the first and second bypass paths. | 11-26-2015 |
20150337718 | WASTEGATE VALVE CONTROL DEVICE - A wastegate valve is arranged in a communication passage that bypasses the exhaust turbine of a turbocharger arranged in the exhaust passage of an internal combustion engine. When the opening degree of the wastegate valve is controlled to the fully closed opening degree, a determination value is calculated based on the operation state of the internal combustion engine, and the turbo rotation speed is detected. When the turbo rotation speed is less than the determination value, a drive force is increased in the direction for closing the wastegate valve. | 11-26-2015 |
20150337719 | WASTEGATE CONTROL - Various methods for operating a wastegate are provided. In one example, a method of adjusting a linked valve actuator system comprises applying, in addition to feedback position control adjustments, a non-harmonic oscillation to an actuator of the linked valve actuator system. | 11-26-2015 |
20150345380 | EXHAUST-GAS TURBOCHARGER WITH ACOUSTICALLY ACTIVE IMPERFECTIONS - An exhaust-gas turbocharger ( | 12-03-2015 |
20150361985 | TURBINE OUTLET DIFFUSER - A turbocharger for an internal combustion engine includes a rotating assembly having a turbine wheel disposed inside a turbine housing and a compressor wheel disposed inside a compressor cover. The turbine housing defines a turbine outlet cavity, a turbine housing inlet, and a turbine housing outlet. The turbine housing inlet is configured to channel engine post-combustion gases to the turbine wheel and the turbine housing outlet is configured to exhaust the gases aft of the turbine wheel. A diffuser arranged inside the turbine outlet cavity is configured to channel the post-combustion gases aft of the turbine wheel and out to the turbine housing outlet, without discharging into the turbine outlet cavity. | 12-17-2015 |
20150377156 | CONTROL APPARATUS FOR AN INTERNAL COMBUSTION ENGINE - A control apparatus for an internal combustion engine comprises a throttle upstream pressure estimation unit which calculates, based on an AFS intake air amount from an AFS and an intake manifold pressure, an average density ρave(n) in a region combining a supercharged portion from a downstream of a compressor to an upstream of a throttle valve and an intake manifold, and estimates a throttle upstream pressure based on the intake manifold pressure and the average density ρave(n). Further, the throttle upstream pressure estimation unit learns a relationship between a throttle opening degree and an effective opening area to correct a throttle upstream pressure estimated value (estimated P | 12-31-2015 |
20160003130 | MOTOR VEHICLE AND ADAPTATION METHOD - An engine system for a motor vehicle is provided. The engine system includes a first exhaust-gas turbine in a first turbocharger driven by exhaust gas from the engine, a second exhaust-gas turbine in a second turbocharger driven by exhaust gas from the engine, a bypass coupled upstream and downstream of the first exhaust-gas turbine, and a pneumatic charge pressure control device including a bypass valve positioned in the bypass and a charge pressure control valve pneumatically coupled to the bypass valve and an intake line downstream of a first compressor included in the first turbocharger, the pneumatic charge pressure control device further including an adaptation unit pneumatically coupled to the bypass valve and an exhaust line upstream of the second exhaust-gas turbine. | 01-07-2016 |
20160003132 | TWIN SCROLL TURBOCHARGER WITH EGR TAKEOFFS - Systems and methods for operating a twin scroll turbocharged engine with a junction configured to selectively control exhaust gas delivery to an exhaust gas recirculation system and a twin scroll turbine are provided. | 01-07-2016 |
20160003135 | Turbocharger Comprising a Regulating Unit - A turbocharger has a regulating unit for controlling the output of the turbocharger. The regulating unit can be adjusted by an actuator. The actuator is connected to the regulating unit by way of an actuating member and a lever. The actuating member and the lever are interconnected by way of a screw-nut element. | 01-07-2016 |
20160003136 | DIGITAL WASTE GATE VALVE ARRANGEMENT AND METHOD OF OPERATING A DIGITAL WASTE GATE VALVE ARRANGEMENT IN AN INTERNAL COMBUSTION ENGINE - A digital waste gate arrangement in an internal combustion piston engine has at least one turbocharger with a compressor part and a turbine part. A flow control unit has more than two individually controllable on-off valve units, and a pneumatic actuator system is arranged to control each on-off valve individually. At least one control gas inlet port is in connection with the pneumatic actuator system, which control gas inlet port is arranged in connection with a downstream side of a compressor part of the turbocharger via a control gas passage. The control gas for operating the flow control unit is arranged available for the pneumatic actuator sys-tem through the control gas passage. | 01-07-2016 |
20160010540 | EXHAUST SYSTEM HAVING REMOTE MULTI-VALVE WASTEGATE | 01-14-2016 |
20160010541 | WASTEGATE CONTROL | 01-14-2016 |
20160010573 | SUPERCHARGING SYSTEM AND DIAGNOSTIC METHOD FOR SUPERCHARGING SYSTEM | 01-14-2016 |
20160010594 | ENGINE WITH CYLINDER DEACTIVATION AND MULTI-STAGE TURBOCHARGING SYSTEM | 01-14-2016 |
20160011070 | Method for Checking the Leak Tightness of a Combustion Engine Having an Exhaust Gas Turbocharger, and Exhaust Gas Turbocharger | 01-14-2016 |
20160024999 | TURBINE HOUSING WITH DIVIDING VANES IN VOLUTE - A turbocharger turbine ( | 01-28-2016 |
20160047326 | Systems and Methods for Aftertreatment Regeneration with Dedicated EGR - Systems and methods for implementing regeneration of an aftertreatment component using exhaust gas recirculation is described. According to various embodiments, an engine system comprises an engine, a turbocharger, a fluid control valve, and a lean NO | 02-18-2016 |
20160053676 | ASYMMETRIC TURBOCHARGER WITH VALVE ASSEMBLY - An asymmetric turbocharger of the present disclosure includes a turbine adapted to receive exhaust gas from an engine. The turbine includes a first volute, a second volute, and a valve assembly. The valve assembly includes a diaphragm to define a first chamber and a second chamber. The first chamber is adapted to receive compressed gas from the compressor and the second chamber is in fluid communication with the first volute. The valve assembly also includes a valve member disposed in the second chamber to cover an aperture of the second volute, against a force of a spring. The valve member is displaced when pressure of exhaust gas in the second volute is greater than a combined force of pressure of the compressed gas and the force of the spring. The exhaust gas enters the second chamber from the second volute to mix with the exhaust gas of the first volute. | 02-25-2016 |
20160061104 | INTERNAL COMBUSTION ENGINE SYSTEM - An internal combustion engine system includes: an electric supercharger and a turbo-compressor that are arranged in series in that order; a first intake bypass passage that bypasses the turbo-compressor; and a first intake bypass valve that opens and closes the first intake bypass passage. In a case where a request to decelerate the internal combustion engine is issued during driving of the compressor wheel by the electric motor, driving of the compressor wheel by the electric motor is stopped simultaneously with the start of an opening operation by the first intake bypass valve. | 03-03-2016 |
20160076438 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - A control apparatus is provided for an internal combustion engine that includes a turbosupercharger, an electric supercharger, and a waste gate valve configured to open and close an exhaust bypass passage. In a single-supercharging range in which an engine torque is less than a torque boundary value TQ | 03-17-2016 |
20160084152 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - A control apparatus for an internal combustion engine includes an exhaust gas concentration parameter sensor, a cylinder gas amount parameter acquisition device, an air-fuel ratio controller, an operation status determination device, and a determination value setting device. The air-fuel ratio controller is to perform an air-fuel ratio fluctuation control to control an air-fuel ratio in the internal combustion engine to fluctuate in a predetermined state. The operation status determination device is to determine an operation status of the internal combustion engine or an auxiliary device of the internal combustion engine based on an exhaust gas concentration parameter detected by the exhaust gas concentration parameter sensor in a case where an amount of a cylinder gas represented by a cylinder gas amount parameter acquired by the cylinder gas amount parameter acquisition device is equal to or larger than a predetermined determination value while the air-fuel ratio fluctuation control is being performed. | 03-24-2016 |
20160084177 | INTERNAL COMBUSTION ENGINE WITH EXHAUST TURBOMACHINES - An internal combustion engine has two exhaust valves ( | 03-24-2016 |
20160090903 | TWIN SCROLL TURBOCHARGER DEVICE WITH BYPASS - A twin scroll turbocharger device for an internal combustion engine comprises a turbine and a compressor, wherein the turbine comprises a first turbine scroll and a second turbine scroll, and wherein at least the first turbine scroll is provided with a turbine scroll inlet valve such that the exhaust gas flow through the first turbine scroll is controllable. The twin scroll turbocharger device is further characterized in that a bypass conduit is provided between a compressor and at least the first turbine scroll. The bypass conduit is provided with a bypass conduit valve such that a flow through the bypass conduit is controllable. | 03-31-2016 |
20160090926 | SUPERCHARGING SYSTEM - A supercharging system includes a waste gate valve and an ECU. The ECU is configured to: calculate a first parameter and a second parameter, each of which has a positive correlation with an intake air amount; obtain a first difference by subtracting a first boost pressure from a second boost pressure; obtain a second difference by subtracting the first parameter from the second parameter; obtain a quotient by dividing the first difference by the second difference; and determine that a malfunction occurs in the waste gate valve when the quotient is larger than a threshold value. | 03-31-2016 |
20160097318 | METHOD AND SYSTEMS FOR ADJUSTING A TURBINE BYPASS VALVE - Various methods and systems are provided for adjusting a turbine boost control actuator based on a single common reference value. In one example, a method for an engine includes adjusting a turbine boost control actuator to control an intake manifold pressure to a limit, the limit based at least in part on one or more of peak cylinder pressure, turbine speed, and a pressure difference across a turbine. | 04-07-2016 |
20160097319 | CONTROL APPARATUS OF ENGINE - Upon request for start-up of an engine, a control apparatus controls the opening/closing action of a waste gate valve in accordance with the temperature Te of the engine before cranking and, if the temperature Te of the engine is equal to or lower than a first set temperature Te | 04-07-2016 |
20160108789 | CONSTANT MASS FLOW INJECTION SYSTEM - Exhaust aftertreatment assemblies and methods of manufacturing and operating exhaust aftertreatment assemblies. The exhaust aftertreatment assembly includes a reductant delivery device, a reductant source fluidly coupled to the reductant delivery device, a mixing chamber positioned between the reductant delivery device and the reductant source and thereby fluidly coupling the reductant source to the reductant delivery device, and a compressed air source fluidly coupled to the mixing chamber upstream of the mixing chamber with respect to the reductant delivery device. The compressed air source provides compressed air to mix with reductant in the mixing chamber. | 04-21-2016 |
20160108798 | METHOD AND SYSTEM FOR IMPROVING TURBOCHARGER EFFICIENCY - Methods and systems are provided for enhancing turbocharger performance for a boosted engine system configured to operate with a pattern of deactivated cylinders. In one example, a method may include, in response to a demand for boost, operating with a cylinder pattern based on boost demand and turbocharger configuration. The specific pattern may depend on the pattern constraints imposed by engine load and NVH metrics. | 04-21-2016 |
20160108800 | WASTEGATE ACTUATOR GAIN ADJUSTMENT - Various methods for controlling a wastegate actuator are provided. In one example, a method comprises adjusting one or more wastegate controller gains responsive to limiting current supplied to a wastegate actuator, the current limited in response to a temperature of the wastegate actuator exceeding a threshold | 04-21-2016 |
20160108803 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - Supply a control device for an internal combustion engine in which an abnormality of an exhaust-bypass valve, such as a WGV, can be certainly detected under wide operation conditions. | 04-21-2016 |
20160115802 | PULSE ENERGY ENHANCED TURBINE FOR AUTOMOTIVE TURBOCHARGERS - A turbocharger with a turbine ( | 04-28-2016 |
20160123203 | REDUCED EMISSIONS INTERNAL COMBUSTION ENGINE SYSTEMS - Internal combustion diesel engine systems and methods of operation are disclosed that include a diesel engine, an exhaust gas recirculation system, a wastegated turbocharger, an exhaust throttle, and a vanadia selective catalytic reduction catalyst downstream of the exhaust throttle. | 05-05-2016 |
20160123221 | ENGINE SYSTEM FOR CONTROLLING FLOW OF EXHAUST GAS - An engine system for controlling flow of exhaust gas may include an intake line to receive external air, an engine including a combustion chamber to combust the external air and a fuel supplied through the intake line, to generate driving torque, an exhaust line to exhaust the exhaust gas combusted in the combustion chamber of the engine, a turbocharger including a turbine operated according to exhaust gas flowing through the exhaust line and a compressor to compress the external air flowing through the intake line, a catalyst device to reduce a harmful component included in the exhaust gas passing through the turbine of the turbocharger, a bypass line branched from the exhaust line between the combustion chamber and the turbine and converged in the intake line between the compressor and the combustion chamber, and a bypass valve disposed in the bypass line to selectively open/close the bypass line. | 05-05-2016 |
20160138465 | ENGINE SYSTEM FOR CONTROLLING EXHAUST GAS FLOW - An engine system for controlling an exhaust gas flow includes an intake line arranged to draw in outdoor air, an engine combusting the outdoor air supplied through the intake line and fuel in a combustion chamber of the engine to generate torque, an exhaust line for exhausting exhaust gas from the combustion in the combustion chamber of the engine, a turbocharger having a turbine operated by the exhaust gas passing through the exhaust line and a compressor for compressing the outdoor air in the intake line, a catalyst unit arranged on a downstream side of the turbocharger for reducing harmful components of the exhaust gas, a bypass line branched from the exhaust line on the downstream side of the turbocharger and joined to the exhaust line on a downstream side of the catalyst unit, and a bypass valve arranged on the bypass line for selectively opening/closing the bypass line. | 05-19-2016 |
20160146131 | TURBOCHARGER CONTROL DUTY DEVIATION COMPENSATION METHOD - A turbocharger control duty deviation compensation method may include judging a learning condition given deviation of a target position calculated using a turbocharger model and an actual position of a turbocharger together with atmospheric pressure, when a turbocharger control starts with a boost control duty value which matches with a required boost pressure target of an engine based on controller, calculating a learning value based on (100−target control duty)/(100−actual control duty) when the control duty deviation compensation control of the target control duty value calculated using the turbocharger actuator control duty model and the actual control duty value of the turbocharger are necessary, and acquiring a control to which any difference in the hardware-based characteristics of the driving mechanism related to the turbocharger are reflected since the control duty value of the target position is corrected with the calculated learning value, and the turbocharger is controlled. | 05-26-2016 |
20160153405 | TWO-STAGE TURBOCHARGER APPARATUS | 06-02-2016 |
20160160746 | DIAGNOSTIC METHOD FOR A COMPRESSOR RECIRCULATION VALVE - Methods are provided for identifying degradation in components of a compressor recirculation valve (CRV). One method includes differentiating between degradation of a throttle of the CRV and a position sensor of the CRV based on each of a throttle inlet pressure and commanded position of the throttle of the CRV. The method also includes utilizing output from the position sensor of the CRV in response to the commanded position of the throttle of the CRV. | 06-09-2016 |
20160169097 | APPARATUS FOR SUPPORTING WASTE GATE MODULE | 06-16-2016 |
20160169128 | Engine Braking Device For A Combustion Engine And Method For Operating An Engine Braking Device | 06-16-2016 |
20160177850 | INTERNAL COMBUSTION ENGINE HAVING A TWO STAGE TURBOCHARGER | 06-23-2016 |
20160186678 | TWO-STAGE TURBO CHARGER SYSTEM AND METHOD OF CONTROLLING THE SAME - A two-stage turbo charger system includes: a high pressure turbine driven by exhaust gas from an engine and a low pressure turbine driven by exhaust gas produced after driving the high pressure turbine; a low pressure compressor primarily compressing intake air by rotation of the low pressure turbine and a high pressure compressor secondarily compressing intake air by the high pressure turbine; and a compressor by-pass valve adjusting opening or closing of an intake air by-pass pipe allowing air discharged from the low pressure compressor to by-pass the high pressure compressor to move toward an intake manifold. | 06-30-2016 |
20160195109 | ATTACHMENT ARRANGEMENT FOR TURBO COMPRESSOR | 07-07-2016 |
20160252054 | SYSTEMS AND METHODS FOR CONTROLLING EGR FLOW DURING TRANSIENTS | 09-01-2016 |
20160377031 | SYSTEMS AND METHODS FOR FUEL VAPOR CANISTER PURGING - Methods and systems are provided for purging a fuel vapor canister. In one example, a method may include during boosted engine operating conditions, utilizing regulated compressed air from an engine intake to purge fuel vapors stored in the fuel vapor canister. Further, during non-boosted condition, regulated air from the intake may be utilized to purge the fuel vapor canister. The purged fuel vapors and intake air may be delivered to upstream of a compressor when operating with boost, or to an intake manifold when operating without boost. | 12-29-2016 |
20170234211 | ENGINE SUPERCHARGER | 08-17-2017 |
20170234212 | TURBOCHARGER WITH ROTARY BYPASS VALVE OPERABLE TO SELECTIVELY CONFIGURE THE TURBINE VOLUTE AS SINGLE-SCROLL OR TWIN-SCROLL | 08-17-2017 |
20170234435 | WASTE GATE VALVE ACTUATOR | 08-17-2017 |
20180023450 | METHOD AND SYSTEM FOR EXHAUST AFTERTREATMENT | 01-25-2018 |
20180023462 | TURBINE WASTEGATE | 01-25-2018 |
20190145328 | VALVE CONTROL DEVICE AND VALVE CONTROL METHOD | 05-16-2019 |