| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 060611000 | Having condition responsive means to control supercharged flow to engine | 51 |
| 20080256950 | Turbo Lag Reducer - A turbo lag reducer is a device which compresses air into the combustion chamber of an internal combustion engine (providing boost), and does so without the revolution speed restrictions of typical turbo- and super-charger devices. A turbo lag reducer device includes several portions or sections. A common impeller compressor device, an exhaust gas-driven turbine driving device, a mechanically-rotated transmission portion (operably connected to receive and transfer engine rotational movement from the engine to the impeller) and a clutch device. The turbine and the transmission device are both powered by the internal combustion engine into which the turbo lag reducer compresses air. The turbine is driven by high pressure exhaust gasses from the engine's combustion chamber, and also by a transmission device that is mechanically driven from the same engine. The transmission device is operably coupled to an engine and the clutch device (possible a unidirectional, overriding clutch and/or electrical or hydraulic switch type clutch) so as to rotate the clutch device of the turbo lag reducer, which is operably coupled to an impeller compressor. The impeller compressor is thereby caused to rotate by both exhaust flow from the engine's combustion chamber, as well as, by the mechanical rotation of the engine through the transmission device, with the clutch, configured so as to allow or cause either exhaust flow or mechanical means, to supercede the other as is needed to achieve the desired turbo boost, or the desired amount of compressed air for the engine's combustion chamber. | 10-23-2008 |
| 20080271452 | SYSTEM FOR CONTROLLING ENGINE FUELING TO LIMIT ENGINE OUTPUT POWER - A method for controlling fueling of an internal combustion engine is provided. The engine may include an intake manifold, one or more exhaust manifolds and a turbocharger coupled between the intake and exhaust manifolds. The method may comprise estimating an operating condition of the turbocharger, determining a maximum value of an operating parameter as a function of the estimated operating condition of the turbocharger, measuring a value of the operating parameter, determining an error value as a function of the maximum value of the first operating parameter and the measured value of the operating parameter, and limiting fuel supplied to the engine based on the error value. | 11-06-2008 |
| 20090071152 | Engine load estimation - Engine load for a supercharged engine is estimated by determining airflow upstream of a throttle valve that is upstream of a supercharger, subtracting a value representative of a change in air mass between the throttle valve and the supercharger based on a measured change in pressure between the throttle valve and the supercharger, and subtracting a modification value dependent upon a current engine speed and a signal representative of a pressure at the intake manifold. | 03-19-2009 |
| 20090183510 | Valve with lip seal - The invention relates to a valve having a movably arranged valve body for selectively opening and closing a valve passage, with a sealing element, for example a lip seal, being arranged on the valve body in such a way that the sealing element comes to bear against a valve seat if the valve body is moved in a closing direction, and with at least one outer peripheral section of the sealing element being resiliently movable or elastically and/or flexibly deformable substantially in the movement direction of the valve body, and with a protective collar being arranged radially outside the outer peripheral section of the sealing element, which protective collar is fixed to the valve body in order to protect the sealing element from damage and/or from excessive deformation. | 07-23-2009 |
| 20090211248 | APPARATUS, SYSTEM, AND METHOD FOR PREDICTIVE CONTROL OF A TURBOCHARGER - An apparatus, system, and method are disclosed for predictive control of a turbocharger. The method includes interpreting a compressor performance model for a turbocharger, and interpreting at least one current operating parameter. The method further includes calculating a performance margin, calculating a performance margin derivative, and calculating a response value. The performance margin comprises a choke margin or a surge margin according to the position of an operating point in the compressor performance model. The performance margin is implemented in a first sigmoid function, and the performance margin derivative is implemented in a second sigmoid function. The response value is determined by applying a MIN function to the output of the product of the sigmoid functions in the choke margin case, and by applying a MAX function to the product of the sigmoid functions in the surge margin case. | 08-27-2009 |
| 20090301085 | Turbocharger for an internal combustion engine - A turbocharger for an internal combustion engine comprising: a turbine driven by exhaust gas from the engine; a compressor for supplying compressed air to the engine, the compressor including an impeller driven by the turbine; an arrangement upstream of the impeller suitable for directing air such that it is swirling in a rotational sense on reaching the impeller; and control means arranged to control said arrangement such that as the speed of the impeller approaches a predetermined maximum speed limit the arrangement directs air such that it is swirling in the opposite rotational sense to that in which the impeller is being driven by the turbine. | 12-10-2009 |
| 20100126170 | METHOD TO CONTROL A GAS ENGINE SYSTEM THEREOF - A method to control a gas engine system is disclosed, whereby the engine can be operated with an air-fuel-ratio controlled with high precision, even in using a low calorific fuel-gas that is prone to vary in calorific value; the engine system includes:
| 05-27-2010 |
| 20110041496 | Method and Device for Generating Compressed Air and for Blowing it into an Internal Combustion Engine - The invention relates to a method for producing compressed air and for injecting the same in an internal combustion engine, in particular a diesel motor, comprising an exhaust turbocharger. The method has the following steps: determination of operating parameters of the internal combustion engine to identify operating states of the internal combustion engine; production of compressed air by the internal combustion engine using the determined operating parameter in an operating state without combustion and storage of the produced compressed air; and injection of the stored compressed air into the combustion engine using the determined operating parameter in an operating state with combustion of the internal combustion engine in order to increase the pressure in an induction cycle. The invention also relates to a corresponding device. | 02-24-2011 |
| 20110146274 | METHOD AND SYSTEM FOR REGENERATING PARTICULATE FILTER - A particulate filter regeneration system regenerates a particulate filter provided in an exhaust line of an engine equipped with a turbocharger by burning matter trapped on the particulate filter by raising the temperature of exhaust gas at times that the particulate filter requires regeneration. The system has an electric motor functioning as an intake quantity regeneration portion capable of increasing the flow rate of compressed air without depending on the flow rate of exhaust gas flowing across a turbine of the turbocharger, a bypass line connecting an engine intake line upstream of the engine to a section of the exhaust line upstream of the particulate filter, a flow rate regulation valve regulating the flow rate in the bypass line, and a control portion controlling the electric motor and the flow rate regulator. | 06-23-2011 |
| 20110203272 | REDUCTION IN TURBOCHARGER LAG AT HIGH ALTITUDES - A method of operating a turbocharged engine of a motor vehicle, the engine having a cylinder which undergoes a compression stroke. The method includes advancing an ignition spark in the cylinder by a first amount relative to top dead center of the compression stroke at a first barometric pressure for a given engine speed and load, and advancing the ignition spark by a second, lesser amount relative to top dead center of the compression stroke at a second, lower barometric pressure, for the given engine speed and load. | 08-25-2011 |
| 20110252795 | TWO-STAGE TURBOCHARGER ASSEMBLY - A two-stage turbocharger assembly for an internal combustion engine is provided. The assembly has a low pressure turbocharger, and more than two high pressure turbochargers arranged in parallel with each other. The compressor outlet of the low pressure turbocharger is operatively connected to the compressor inlets of the high pressure turbochargers. The turbine outlets of the high pressure turbochargers are operatively connected to the turbine inlet of the low pressure turbocharger. | 10-20-2011 |
| 20110296835 | VARIABLE CAPACITY EXHAUST GAS TURBOCHARGER - A variable capacity exhaust gas turbocharger having a small thermal capacity and enabling the structure to be simplified. A exhaust gas inlet hardware ( | 12-08-2011 |
| 20110296836 | INTERNAL COMBUSTION ENGINE - An internal combustion engine having an air intake section ( | 12-08-2011 |
| 20120023938 | VARIABLE CAPACITY SUPERCHARGER FOR INTERNAL COMBUSTION ENGINE - A variable capacity supercharger for an internal combustion engine is provided with a turbine having an exhaust-side movable vane mechanism for changing the cross-sectional area of a flow path of exhaust gas introduced into a turbine wheel by open-close operation of a movable vane, a compressor having an intake-side movable vane mechanism for changing the cross-sectional area of a flow path of intake air delivered from a compressor wheel by open-close operation of a movable vane, and a drive mechanism having an actuator used in common by the exhaust-side movable vane mechanism and the intake-side movable vane mechanism to perform open-close operation of the movable vane of each movable vane mechanism as transmitting operation of the actuator to both of the movable vane mechanisms. | 02-02-2012 |
| 20120036849 | SIMPLIFIED VARIABLE GEOMETRY TURBOCHARGER WITH VARIABLE FLOW VOLUMES - A variable geometry turbocharger is simplified yet able to maintain pulse energy. In a first embodiment, a turbine housing is provided with a pivoting wall which pivots about a point near the entry to the turbine housing. By moving the wall about the pivot point, the effective volume of the turbine housing volute is varied, thus effectively reducing the volume of exhaust gas in the volute, allowing control of exhaust gas flowing to the turbine wheel. In the second embodiment of the invention, a rotating wedge segment within the volute is rotated from a first position to a second position, changing the effective volume of the volute and allowing control of exhaust gas flowing to the turbine wheel. | 02-16-2012 |
| 20120067044 | Method and Apparatus for Regulating a Charge Air Pressure of an Internal Combustion Engine of a Vehicle - A method is provided for regulating a charge air pressure of an internal combustion engine of a vehicle having an exhaust gas supercharger, a fresh gas supply device, a vehicle air system having an air treatment system and a compressor chargeable by the exhaust gas supercharger, and an engine controller. The method detects a torque requirement on the internal combustion engine; determines a current charge air pressure and a current pressure of the vehicle air system; compares the current charge air pressure to a target charge air pressure corresponding to the torque requirement and compares the determined current pressure of the vehicle air system to a target operating pressure of the vehicle air system, and regulates the charge air pressure by suppressing a supply of compressed air, supplied by the exhaust gas supercharger, to the compressor when the determined current charge air pressure is less than the corresponding target charge air pressure and the current pressure of the vehicle air system is greater than or equal to the target operating pressure of the vehicle air system. | 03-22-2012 |
| 20120090320 | Turbocharged Combustion System - An engine combustion system is disclosed which includes: a cylinder head having at least two cylinders; an exhaust duct adjoining each cylinder with the exhaust ducts of at least two cylinders converging to form an exhaust manifold within the cylinder head and two turbines arranged downstream of the exhaust manifold. In one embodiment, the two turbines are arranged in parallel with a control element disposed upstream of one of the turbines to close off flow to the one turbine. Alternatively, a first of the turbines has a first bypass duct having a first valve. Flow exiting the turbine and the bypass path converge and are provided to a second of the turbines that has a second bypass duct having a second valve. By controlling positions of each valve, flow can provided solely to the associated turbine, the associated bypass duct, or a combination. | 04-19-2012 |
| 20120111002 | CENTRIFUGAL COMPRESSOR AND TURBO SUPERCHARGER - A compressor ( | 05-10-2012 |
| 20120117964 | INTAKE SYSTEM OF ENGINE - An intake system of an engine may include an intake line that is configured to supply cylinder of an engine with air, an exhaust line that exhaust gas combusted in the cylinder is exhausted, a housing disposed on the intake line and a compressor is disposed therein, the compressor is operated by a turbine disposed on an exhaust line, a recirculation line that recirculates the air from the intake line of a downstream side of the compressor to the intake line of an upstream side of the compressor, and an anti surge valve disposed on the recirculation line to open/close the recirculation line, wherein a length of a first section (l) that is straight from the anti surge valve is longer than two times the outlet diameter (d) of the anti surge valve in the recirculation line that is formed from the anti surge valve to an upstream side of the compressor. | 05-17-2012 |
| 20120144826 | Process for Starting an Internal-Combustion Engine and an Internal-Combustion Engine Having a Starting-Aid Device - A process is provided for starting an internal-combustion engine, particularly a Diesel engine, having an exhaust gas turbocharger and an inlet gas supply device with at least one compressed-air reservoir which is connected with an intake pipe of the internal-combustion engine. During the starting of the internal-combustion engine, additional air is blown from the inlet gas supply device into the intake pipe until a rotational speed of the internal-combustion engine reaches a previously definable idling speed. | 06-14-2012 |
| 20120204560 | METHOD FOR CONTROLLING THE OPERATION OF A COMPRESSOR - A method for controlling a compressor of a turbocharger is disclosed. In one example, the method comprises varying a maximum permitted compressor outlet temperature based upon a function of compressor outlet temperature and operating time, and controlling the operation of the compressor so that the maximum permitted compressor outlet temperature is not exceeded. In this way a higher boost pressure can safely be used during the early life of the compressor but excessive coking of the compressor with a resultant loss of efficiency later in the life of the compressor is reduced. | 08-16-2012 |
| 20120210712 | SECONDARY AIR INJECTION SYSTEM AND METHOD - According to one embodiment of the invention, a secondary air injection system includes a first conduit in fluid communication with at least one first exhaust passage of the internal combustion engine and a second conduit in fluid communication with at least one second exhaust passage of the internal combustion engine, wherein the at least one first and second exhaust passages are in fluid communication with a turbocharger. The system also includes an air supply in fluid communication with the first and second conduits and a flow control device that controls fluid communication between the air supply and the first conduit and the second conduit and thereby controls fluid communication to the first and second exhaust passages of the internal combustion engine. | 08-23-2012 |
| 20120216531 | Method of Operating a Vehicle Equipped With a Pneumatic Booster System - An apparatus and method for improving vehicle performance by application of pneumatic boost to vehicle engines, including diesel engines having at least one turbocharger supplying air to the engine, in a manner which increases engine torque output while minimizing the potential for exceed various operating limits to the maximum practicable extent. The vehicle's pneumatic booster system controller implements strategies for shaping the rate of the air injection during a boost event, tailoring the air injection to obtain maximum engine torque output while respecting the operating limits, by controlling the timing, duration, quantity and/or injection pattern during a boost event to achieve a refined distribution of compressed air injection over the course of the boost event to provide desired engine torque output and fuel efficiency while minimizing the potential for exceeding a wide variety of operation limits, regulatory, engineering and passenger comfort limits. | 08-30-2012 |
| 20120216532 | Method of Operating a Vehicle Equipped With a Pneumatic Booster System - An apparatus and method for improving vehicle performance by application of pneumatic boost to vehicle engines, including diesel engines having at least one turbocharger supplying air to the engine, in a manner which increases engine torque output while minimizing the potential for exceed various operating limits to the maximum practicable extent. The vehicle's pneumatic booster system controller implements strategies for shaping the rate of the air injection during a boost event, tailoring the air injection to obtain maximum engine torque output while respecting the operating limits, by controlling the timing, duration, quantity and/or injection pattern during a boost event to achieve a refined distribution of compressed air injection over the course of the boost event to provide desired engine torque output and fuel efficiency while minimizing the potential for exceeding a wide variety of operation limits, regulatory, engineering and passenger comfort limits. | 08-30-2012 |
| 20120216533 | Method of Operating a Vehicle Equipped With a Pneumatic Booster System - An apparatus and method for improving vehicle performance by application of pneumatic boost to vehicle engines, including diesel engines having at least one turbocharger supplying air to the engine, in a manner which increases engine torque output while minimizing the potential for exceed various operating limits to the maximum practicable extent. The vehicle's pneumatic booster system controller implements strategies for shaping the rate of the air injection during a boost event, tailoring the air injection to obtain maximum engine torque output while respecting the operating limits, by controlling the timing, duration, quantity and/or injection pattern during a boost event to achieve a refined distribution of compressed air injection over the course of the boost event to provide desired engine torque output and fuel efficiency while minimizing the potential for exceeding a wide variety of operation limits, regulatory, engineering and passenger comfort limits. | 08-30-2012 |
| 20120216534 | METHOD FOR MOUNTING AND SETTING AN ACTUATOR OF AN EXHAUST GAS TURBOCHARGER, AND AN ACTUATOR INTENDED FOR A CHARGING DEVICE - A method for mounting and setting an actuator of an exhaust gas turbocharger and a suitable electric actuating device are provided. The actuating device has an axially movable actuating rod which is connected to a coupling element which for its part is connected via a pivot pin to an actuation section of a bypass valve, the actuation section being configured as a lever arm. In order to set the desired closed position of the bypass valve during a predefined actuation of the actuating device, the coupling element is first connected to the actuating rod while still being displaceable. Before the fixing, the position of the actuating device which corresponds to the closed position is set by application of the corresponding voltage to the electric actuating device. Subsequently, a prestressing force is applied to the coupling element coaxially with respect to the actuating rod via a pneumatic actuator. | 08-30-2012 |
| 20120279218 | MILLER CYCLE ENGINE - Provided is a miller cycle engine in which the thermal efficiency is improved by increasing boost pressure, while the reliability of mechanical strength and thermal load of the engine body is secured by maintaining a maximum in-cylinder pressure. The mirror cycle engine includes an intake valve variable unit ( | 11-08-2012 |
| 20120291432 | Method and System for Controlling a Turbocharger Compressor Bypass - A turbocharger compressor bypass valve is disclosed. In one example, the compressor bypass valve operates inversely proportional to engine throttle operation. The approach may simplify compressor bypass valve control and reduced engine system complexity. | 11-22-2012 |
| 20120297769 | Fresh Gas Supply Device for an Internal Combustion Engine and Method of Operating Same - A fresh gas supply device for an internal combustion engine having an exhaust gas turbocharger includes a charge air inlet for taking in a compressed charge air flow from the exhaust gas turbocharger; an outlet which is connected to the charge air inlet via a valve section, said valve section being closed in a closed position by at least one flap valve which can be pivoted, preferably, about a flap rotational axis; an adjusting device which is coupled to the at least one flap valve for adjusting the same in the closing direction; and a compressed air inlet for taking in compressed air into the outlet. The compressed air inlet is arranged such that the compressed air is directed into a compressed air flow in the direction of the valve section to the at least one flap valve. A corresponding method for operating the fresh gas supply device is provided. | 11-29-2012 |
| 20120312014 | SPARK IGNITION-TYPE INTERNAL COMBUSTION ENGINE - A spark ignition-type internal combustion wherein a first mechanical compression ratio control and a second mechanical compression ratio control are alternatively carried out, the first mechanical compression ratio control makes the mechanical compression ratio in the low engine load side operation area higher than that in the high engine load side operation area to increase the expansion ratio in the low engine load side operation area, the second mechanical ratio control makes the expansion ratio in the low engine load side operation area lower than that in the low engine load side operation area made by the first mechanical compression ratio control and a boost pressure control increases the boost pressure like a step change when the engine load becomes a set engine load in the low engine load side operation area or higher, is provided. The set engine load of the boost pressure control when the second mechanical compression ratio control is carried out is set higher than that when the first mechanical compression ratio control is carried out. | 12-13-2012 |
| 20130098034 | WASTE HEAT RECOVERY DEVICE - There is disclosed a waste heat recovery device including a turbine | 04-25-2013 |
| 20130111901 | PULSATION ABSORPTION SYSTEM FOR AN ENGINE - A pulsation absorption system for a turbocharged engine is provided herein. The pulsation absorption system includes a pulsation absorption device coupled to an air passage at a position between a compressor and a turbine, wherein the pulsation absorption device is configured to selectively increase a volume of the air passage. In this way, it is possible to reduce surge while limiting increase in turbo lag. | 05-09-2013 |
| 20130125544 | COMBUSTION MODE SWITCHING WITH A TURBOCHARGED/SUPERCHARGED ENGINE - A method for switching between low- and high-dilution combustion modes in an internal combustion engine having an intake passage with an exhaust-driven turbocharger, a crankshaft-driven positive displacement supercharger downstream of the turbocharger and having variable boost controllable with a supercharger bypass valve, and a throttle valve downstream of the supercharger. The current combustion mode and mass air flow are determined. A switch to the target combustion mode is commanded when an operating condition falls within a range of predetermined operating conditions. A target mass air flow to achieve a target air-fuel ratio corresponding to the current operating condition and the target combustion mode is determined. The degree of opening of the supercharger bypass valve and the throttle valve are controlled to achieve the target mass air flow. The amount of residual exhaust gas is manipulated. | 05-23-2013 |
| 20130152584 | METHOD FOR REDUCING SENSITIVITY FOR ENGINE SCAVENGING - A method for correcting a total cylinder air flow during scavenging by way of an oxygen sensor is disclosed. Additionally, cylinder trapped air amount and cylinder scavenging air amount are adjusted based on the corrected total cylinder air flow. The approach may reduce sensitivity between cylinder air flow estimates and fuel supplied for combustion. | 06-20-2013 |
| 20130227945 | METHOD AND SYSTEM FOR LIMITING OUTPUT OF A BOOSTED ENGINE - A method for operating a turbocharged engine is disclosed. In one example, during a first condition an engine operation is adjusted in response to a turbocharger expansion ratio exceeding a first limit and during a second condition an engine operation is adjusted in response to the turbocharger expansion ratio exceeding a second limit that differs from the first limit. Degradation of the engine may be reduced under some engine operating conditions by adjusting engine operation in response to the turbocharger expansion ratio. | 09-05-2013 |
| 20130239570 | Boost pressure control system for turbocharged internal combustion engines - A variable boost pressure control system for turbocharged internal engine systems comprising an adjustable charge air vent valve connectable with the charge air input to an internal combustion engine to provide selection and adjustment of the charge air pressure to the internal combustion engine, either at the site of the charge air vent valve or at a location remote from the charge air vent valve and to provide, if desirable, a flow of cool charge air to a turbocharger cooling jacket. | 09-19-2013 |
| 20130318966 | METHOD AND SYSTEM FOR ADJUSTING ENGINE THROTTLES - An engine system and method for operating an engine including a central throttle and a port throttle is disclosed. In one example, the central throttle and port throttle are adjusted to improve air flow distribution to engine cylinders. The system and method may be particularly beneficial for turbocharged engines. | 12-05-2013 |
| 20130340430 | SYSTEMS AND METHODS FOR A HYDRAULICALLY ACTUATED ENGINE VALVE - Various methods and systems are provided for controlling a hydraulically actuated engine valve. In one example, a system includes a hydraulically actuated engine valve and an engine having a first hydraulic system. The system further includes a second hydraulic system, which is separate from the first hydraulic system, and where the second hydraulic system provides fluid pressure to actuate the valve. | 12-26-2013 |
| 20140069096 | BYPASS VALVE AND TURBOCHARGER - Provided is a bypass valve that diverts some of compressed air in a scroll section to an upstream side of the scroll section via a bypass conduit in an open state and sends the compressed air in the scroll section to a downstream side in a closed state, the bypass valve including a valve body that is fittable in a branch hole in which the scroll section communicates with the bypass conduit, and an actuator that moves the valve body between the closed state where the valve body is fitted in the branch hole and the open state where the valve body is away from the branch hole, in which the valve body forms an inner surface along an inner wall of the scroll section in the closed state. | 03-13-2014 |
| 20140157774 | COMPRESSOR BYPASS TURBINE-GENERATOR - Embodiments for a turbine-generator position in a compressor bypass flow path are presented. In one example, a method for an engine having a compressor comprises generating energy via a turbine-generator positioned in a bypass flow path of the compressor. In this way, the energy of the recirculated intake air may be recovered by the turbine-generator. | 06-12-2014 |
| 20140157775 | EXHAUST HEAT RECOVERY FOR ENGINE HEATING AND EXHAUST COOLING - Various systems and method for heating an engine in a vehicle are described. In one example, intake air flowing in a first direction may be heated via a gas-to-gas heat exchange with exhaust gases. The heated intake air may then be used in a subsequent gas-to-liquid heat exchange to heat a fluid circulating through the engine. In another example, intake air flowing in a second direction may be heated via a heat exchange with exhaust gases in order to cool an exhaust catalyst. | 06-12-2014 |
| 20140182287 | TURBO-CHARGER SYSTEM - A turbocharger system includes a compressor that is connected with a turbine operated by an exhaust gas by a rotary shaft and compresses and supplies external gas to a combustion chamber of an engine, an intercooler and a throttle valve disposed in an intake line connecting the compressor with the combustion chamber of the engine, a branch line connecting an intake line between the compressor and the intercooler with an intake line between the intercooler and the throttle valve, a shutoff valve disposed in the branch line to selectively open/close the branch line, and an engine control unit controlling the operation of the shutoff valve | 07-03-2014 |
| 20140182288 | Device and method for regulating a spark-ignition gas engine - A protective device for a spark-ignition gas engine is provided, which engine has a throttle valve for controlling a gas/air mixture and has an exhaust-gas turbocharger with a turbine that is associated with a throttle member for exhaust gas. A detection unit is configured to detect an actual differential pressure across the throttle valve, and a control unit is configured to change the position of the throttle member based on the actual differential pressure. The throttle member for the exhaust gas is provided only downstream of the turbine in relation to the flow direction of the exhaust gas. A method for regulating an exhaust-gas throttle member, connected downstream of a turbine of an exhaust-gas turbocharger, is also disclosed. | 07-03-2014 |
| 20140208745 | CONTROL STRATEGY FOR AN ENGINE - The present disclosure relates to a method of controlling an engine. The method includes manipulating a combustion air bypass valve between an open position and a closed position to create a negative pressure differential across a supercharger. The negative pressure differential is converted into a torque by the supercharger and transmitted from the supercharger back to the engine. | 07-31-2014 |
| 20150047350 | SYSTEM AND METHOD FOR OPERATING AN ENGINE COMBUSTING LIQUEFIED PETROLEUM GAS - A method and system for operating an engine that is supplied a fuel having a low super critical temperature is presented. In one example, the method supplies excess fuel to a direct injection fuel rail to cool a portion of the fuel system that is near direct fuel injectors. The heat is drawn from the direct injection fuel rail to a fuel tank where the heat is removed via injecting fuel vapors to the engine. | 02-19-2015 |
| 20150096296 | METHODS AND SYSTEMS FOR DETECTING COMPRESSOR RECIRCULATION VALVE FAULTS - Methods are provided for identifying degradation in components of a compressor recirculation valve (CRV). One method may include inferring degradation of the CRV based on adaptation of a compressor surge line outside an expected range. | 04-09-2015 |
| 20150121865 | METHOD AND SYSTEM FOR LIMITING OUTPUT OF A BOOSTED ENGINE - A method for operating a turbocharged engine is disclosed. In one example, during a first condition an engine operation is adjusted in response to a turbocharger expansion ratio exceeding a first limit and during a second condition an engine operation is adjusted in response to the turbocharger expansion ratio exceeding a second limit that differs from the first limit. Degradation of the engine may be reduced under some engine operating conditions by adjusting engine operation in response to the turbocharger expansion ratio. | 05-07-2015 |
| 20150128588 | METHOD FOR THE LOAD-DEPENDENT OPENING AND CLOSING OF A BLOW-OFF VALVE FLAP OF AN INTERNAL COMBUSTION ENGINE WITH A TURBOCHARGER - A method for the load-dependent opening and closing of a blow-off valve flap of an internal combustion engine with a turbocharger is provided, in which by at least one detector on an internal combustion engine inlet side, at least one air pressure value, one air mass flow value and/or an opening position of a valve of the suction pipe are detected and transmitted to a control device. By the control device from the received values a current load of the internal combustion engine is determined, and by the control device based on the determined current load of the internal combustion engine and/or of the turbocharger, control inputs for an actuator of the blow-off valve flap are generated and transmitted to the actuator. The blow-off valve flap is completely opened, partially opened, minimally opened or closed and held in the respective position by the actuator dependent on the current load. | 05-14-2015 |
| 20150292396 | RECIRCULATION VALVE CONTROL SYSTEMS AND METHODS - A control system for a recirculation valve of a turbocharger includes a target boost module, a close request module, and a close delay module. The target boost module determines a target boost for the turbocharger based on a torque request. The close request module selectively generates a close request to close the recirculation valve based on the target boost. The close delay module, in response to the generation of the close request, delays closing of the recirculation valve. | 10-15-2015 |
| 20160047324 | SUPERCHARGED INTERNAL COMBUSTION ENGINE WITH EXHAUST-GAS TURBOCHARGER AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE - Embodiments for inducing swirl upstream of a compressor are provided. In one example, a method includes during a first condition, flowing exhaust gas from downstream of a turbine to upstream of a compressor via a tangential flow duct of an exhaust gas recirculation (EGR) injector circumferentially surrounding an intake passage upstream of the compressor, and during a second condition, flowing exhaust gas from downstream of the turbine to upstream of the compressor via a radial flow duct of the EGR injector. | 02-18-2016 |
| 20160061102 | INTERNAL COMBUSTION ENGINE SYSTEM - An internal combustion engine system includes: a turbosupercharger having a turbo-compressor arranged in a first intake passage; a throttle valve provided on a downstream side relative to the turbo-compressor; a second intake passage that bypasses the turbo-compressor; and an electric supercharger in which a compressor wheel disposed in the second intake passage is driven by an electric motor. When 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 before the throttle valve starts a valve closing operation, and the intake bypass valve opens at or after a time at which a valve closing operation of the throttle valve starts. | 03-03-2016 |
