Entries |
Document | Title | Date |
20090025679 | HCCI Heavy Mixing Mode - A method for operating a multi-stroke homogeneous charge compression ignition engine having a plurality of cylinders using electronic valve actuation is described. The method includes actuating at least one intake valve of a cylinder with a late intake valve opening (LIVO); receiving an air and fuel charge in the cylinder; opening the at least one intake valve during a compression stroke of a piston in the cylinder to cycle the air and fuel charge into an intake manifold to mix the air and fuel charge; opening the at least one intake valve to receive at least some of the mixed air and fuel charge from the intake manifold during an intake stroke; and compressing the mixed air and fuel charge to auto-ignition to generate HCCI combustion without applying spark ignition to the mixed air and fuel charge. | 01-29-2009 |
20090084347 | SYSTEM AND METHOD FOR INJECTING FUEL INTO A DIRECT INJECTION ENGINE - A method for controlling the operation of at least one fuel injector in a four stroke internal combustion engine is provided. The method includes the steps of initiating fuel injection into a combustion chamber during an expansion stroke of the engine, injecting fuel into the combustion chamber during an exhaust stroke of the engine, injecting fuel into the combustion chamber during an intake stroke of the engine, and terminating fuel injection into the combustion chamber during a compression stroke of the engine. | 04-02-2009 |
20090084348 | Method Of Accurately Metering A Gaseous Fuel That Is Injected Directly Into A Combustion Chamber Of An Internal Combustion Engine - For gaseous fuels that are injected directly into a combustion chamber the mass flow rate through an injection valve can be influenced by changes in the in-cylinder pressure. A method and apparatus are provided for accurately metering a gaseous into a combustion chamber of an internal combustion engine. The method comprises inputting a fueling command; determining from said fueling command a baseline pulse width of an injection event, based upon a baseline pressure differential across a fuel injection valve; estimating the difference between said baseline pressure differential and an actual pressure differential; calculating a corrected pulse width by applying at least one correction factor to said baseline pulse width, wherein said correction factor is a function of the estimated difference between said baseline pressure differential and said actual pressure differential. | 04-02-2009 |
20100006060 | High Pressure Injection Arrangement for an Internal Combustion Engine with Direct Injection - The invention relates to a high pressure injection arrangement for an internal combustion engine with direct injection, with an injection valve and a support element, which supports the injection valve in the installed state on a seat of an internal combustion engine. It is provided that a spring element is arranged between the injection valve and the support element. | 01-14-2010 |
20100258077 | Diesel Engine - A diesel engine in which a lubrication oil on the wall surface of the cylinder liner is prevented from being burned and diluted, and a smoke resulting from the local lack of air in the combustion chamber is also prevented from being generated. The diesel engine comprises a group injection hole nozzle | 10-14-2010 |
20100307450 | FUEL INJECTION METHOD FOR A DIRECT-INJECTION AUTO-IGNITION INTERNAL-COMBUSTION ENGINE - The present Invention relates to a fuel injection method for a direct-injection internal-combustion engine, notably of diesel type, comprising a cylinder ( | 12-09-2010 |
20110094472 | COMPONENT UNIT FOR A FUEL SYSTEM OF AN INTERNAL COMBUSTION ENGINE AND INTERNAL COMBUSTION ENGINE - A component unit is provided for a fuel system of an internal combustion engine, in particular for use in an internal combustion engine having direct injection, having at least one injector, which injects fuel, and/or at least one mounting, on which at least one injector, which injects fuel, is fixable, and having at least one fuel line, using which the injector or the mounting is connectable to a fuel distributor. It is provided that the injector or the mounting is connected to the fuel line using a plug connection. Furthermore, at least one positioning aid is provided, which holds the injector or the mounting in a specified location. | 04-28-2011 |
20110126797 | BOOSTED ENGINE CONTROL RESPONSIVE TO DRIVER SELECTED PERFORMANCE - Various systems and methods are described for operating an engine in a vehicle in response to a driver performance/economy mode. One example method comprises delivering a first fuel to a cylinder of the engine from a first injector, delivering a second, different, fuel to the cylinder of the engine from a second injector, varying a relative amount of said first and second fuel as an operating condition varies; and adjusting delivery of at least said second fuel based on a driver-selected performance mode. | 06-02-2011 |
20110162619 | Fuel Heating During Cold Start In A Direct-Injection Gasoline Engine - It has been found that direct-injection gasoline engines emit particulate matter during the first 500 seconds of operation due to fuel impacting combustion chamber surfaces. To largely overcome the fuel penetrating to surfaces in the combustion chamber, the fuel may be heated. In one embodiment, engine coolant that is heated in the water jacket portions nearest exhaust ducts is provided directly to a tube in physical contact with the fuel rail. | 07-07-2011 |
20110168128 | System for Variable Blending Of Ethanol And Exhaust Water For Use As An Anti-Knock Agent - The present application describes systems for water retrieval from the engine exhaust. This collected water can be used both for removing ethanol from ethanol-gasoline blends, and for use as a knock suppressant. The water that is removed from the exhaust can be used as the only source of water or in combination with water that is externally supplied. The present application also describes new means for removal of water from the exhaust that can be employed for applications. In some embodiments, an auto-heat exchanger is employed to recover water from the engine exhaust. | 07-14-2011 |
20110168129 | METHOD FOR CONTROLLING LOW TEMPERATURE COMBUSTION - An engine with a high flow capacity brake booster is disclosed. In one example, an actuator is adjusted in response to a flow between the brake booster and an engine intake manifold. Operation of the engine and vehicle brakes may be improved especially when the engine is turbocharged. | 07-14-2011 |
20110192372 | METHOD FOR OPERATING AN INJECTION SYSTEM OF AN INTERNAL COMBUSTION ENGINE - A method is provided for operating a direct injection system of an internal combustion engine of a motor vehicle. The at least one fuel injection parameter is adjusted by a closed loop control of the injected fuel quantity. | 08-11-2011 |
20110197850 | FUEL SUPPLY SYSTEM - A sub-injector injects liquid fuel into a vaporized-fuel chamber of a vaporized-fuel tank. The injected liquid fuel is vaporized in the vaporized-fuel chamber. The generated vaporized fuel is supplied to a combustion chamber through a vaporized-fuel passage. A supply of the vaporized fuel to the combustion chamber is controlled by a purge valve. Thereby, the vaporized fuel can be precisely supplied to the engine at a start of engine, so that emission can be reduced. | 08-18-2011 |
20110209684 | SONIC SYSTEM AND METHOD FOR PRODUCING LIQUID-GAS MIXTURES - A sonic saturation system is provided that comprises at least one tank for containing a reservoir of liquid solvent; at least one gas-inlet in fluid communication with a gas compressor, for introducing gaseous solute into the reservoir, and at least one sonic agitator ( | 09-01-2011 |
20110253096 | PISTON HAVING COMBUSTION BOWL SHAPED TO BALANCE COMBUSTION EFFICIENCY AND EMISSION PROPERTIES - A piston for a compression ignition internal combustion engine includes a piston body having a combustion face defining a combustion bowl, and the combustion face including a compound bowl surface and a compound rim surface. The combustion face is profiled to balance a combustion efficiency property of the piston with emissions properties of the piston, and includes a profile of rotation defining a convex curve segment bisected by the longitudinal axis, and a plurality of concave curve segments outboard of the convex curve segment. The profile of rotation further includes a compound rim profile defining a plurality of convex curve segments corresponding to an inner rim surface. The convex curve segment of the compound bowl profile defines a relatively small radius of curvature, and the plurality of convex curve segments corresponding to the inner rim surface define a relatively large radius of curvature. The combustion face includes an abrupt transition from the compound bowl surface to the compound rim surface. | 10-20-2011 |
20120031371 | METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE HAVING SPARK IGNITION - A method is provided for operating an internal combustion engine having a spark ignition unit. A liquid fuel is mixed with air in an injection procedure and, after ignition by the spark ignition unit, combusted while discharging mechanical power. A liquefied gas is combusted as the liquid fuel. The liquefied gas is at least partially injected using a direct injection nozzle into the combustion cylinder before the ignition by the spark ignition unit. A cooling unit cools the liquefied gas at least in a return line or a supply line. | 02-09-2012 |
20120042849 | METHOD AND DEVICE FOR CONTROLLING DIESEL ENGINE WITH FORCED INDUCTION SYSTEM - This disclosure provides a control device for a diesel engine. When the engine is within a particular operating range with a low engine speed and a partial engine load and in a low temperature state where a cylinder temperature at a compression stroke end is lower than a predetermined temperature, a forced induction system sets a forcibly inducting level higher than a predetermined level that is higher than that in a high temperature state where the cylinder temperature is above the predetermined temperature. At least within the particular operating range, an injection control module performs a main injection where a fuel injection starts at or before a top dead center of the compression stroke to cause main combustion mainly including diffusion combustion and performs a pre-stage injection where the fuel injection is performed at least once prior to the main injection to cause pre-stage combustion before the main combustion starts. | 02-23-2012 |
20120055444 | MULTI-CYLINDER INTERNAL COMBUSTION ENGINE AND METHOD FOR OPERATING A MULTI-CYLINDER INTERNAL COMBUSTION ENGINE - A method for partial cylinder cutoff is provided. The method comprises operating a multi-cylinder internal combustion engine with applied ignition, in which an odd number n of cylinders is arranged in line, and during partial-load operation when engine load is below threshold, enabling a partial cutoff of the cylinders, the partial cutoff comprising operating each cylinder only intermittently such that each cylinder is fired and cut off in turn at an interval of (2*720° CA)/n. | 03-08-2012 |
20120085314 | USE OF PRESSURIZED FUELS IN AN INTERNAL COMBUSTION ENGINE - An amount of inlet air can be delivered to a combustion volume of an internal combustion engine via an air inlet port, and delivery of an amount of a fuel from a compressed fuel reservoir to the combustion volume can be controlled via a pressurized fuel inlet port positioned to the deliver the amount of the fuel directly into the combustion volume separately from the air inlet port. The amount of the fuel can be controlled relative to the amount of the inlet air to create an air-fuel mixture within the combustion volume having a target air/fuel ratio. In other aspects, a vehicle chassis can be designed to incorporate a compressed fuel reservoir as a structural part of the chassis. Methods, system, and articles of manufacture relating to these features are described. | 04-12-2012 |
20120090574 | HIGH PRESSURE FUEL PUMP CONTROL FOR IDLE TICK REDUCTION - A method for controlling a mechanical solenoid valve of a high-pressure fuel pump to supply fuel to an engine is provided. In one example, current supplied to the mechanical solenoid valve is adjusted according to a pressure downstream of the fuel pump. The method can reduce current used to operate the mechanical solenoid valve as well as pump noise, at least during some conditions. | 04-19-2012 |
20120097126 | Control Apparatus of a Direct Injection Gasoline Engine - In a direct injection gasoline engine, at acceleration operation, an amount of internal EGR is increased by advancing exhaust valve closing timing, and also fuel injection pressure is increased. In this case, range of increase in fuel injection pressure is determined on the basis of the exhaust valve closing timing at present. | 04-26-2012 |
20120138013 | DIRECT FUEL INJECTION SYSTEM FOR INTERNAL COMBUSTION ENGINE WITH CONICAL RING INJECTOR ISOLATOR - A fuel injection system for an internal combustion engine includes a fuel injector pocket, formed within a cylinder head, for housing an injector which sprays fuel into a combustion chamber defined by the cylinder head and a piston crown. The injector is mounted with a conical isolator which is loaded at a lower, elastic rate during lower power operation, with the conical isolator being stacked solid between a tapered portion of the injector and a corresponding tapered portion of the cylinder head during high power operation of the engine and injection system. The isolator controls unwanted injector ticking noise, while protecting the integrity of the injector's tip seal by preventing excessive axial displacement of the injector during higher load operation. | 06-07-2012 |
20120138014 | METHOD FOR FUELING AN ENGINE AT START - A method for improving starting of an engine that may be repeatedly stopped and started is presented. In one example, fuel injection timing is selectively adjusted based on engine stop position and amount of time the engine is stopped. The method may improve engine starting and lower engine noise. | 06-07-2012 |
20120145121 | ROTATABLE VALVE IN A CYLINDER INTAKE DUCT - A spark ignition direct injection fuel cylinder for an engine includes a rotatable valve at a curved wall of an intake duct. The rotatable valve provides a variable step in to adjust the degree of tumble airflow while reducing flow restriction to improve engine performance across operating conditions. | 06-14-2012 |
20120160210 | Injection Valve Comprising a Transmission Unit - An injection valve for injecting fuel into an internal combustion engine may include an actuator, an injection needle associated with a sealing seat, and a transmission unit that establishes an effective connection between the actuator and the injection needle. The transmission unit may include a pressure chamber including two movable pistons that are guided within a movable pot. The first piston may be guided through a bottom of the pot while maintaining a first sealing gap, and the second piston may be guided within a sleeve section of the pot while maintaining a second sealing gap. One piston may be effectively connected to the injection needle, while the other piston may be effectively connected to the actuator. | 06-28-2012 |
20120180754 | Electromagnetic Fuel Injection Valve and Internal Combustion Engine Control Device Using the Same - Disclosed is an electromagnetic fuel injection valve capable of reducing dynamic flow variation relative to the pulse widths of individual units in a lower pulse region than under idling conditions under which the dynamic flow is adjusted. Also disclosed is an internal combustion engine control device that utilizes the electromagnetic fuel injection valve. The electromagnetic fuel injection valve includes a fixed core, a coil disposed at the periphery of the fixed core, an anchor facing the lower end of the fixed core, a movable element with a valve seat formed on its lower end, and a regulator press-fit into a through-hole in the fixed core, the fixed core being a central shaft of the electromagnetic fuel injection valve. | 07-19-2012 |
20120180755 | Injector - An injector includes a control valve for opening a connection between a control chamber for controlling a nozzle needle position and a prechamber of a fluid return line, wherein a pressure compensation device is arranged in the prechamber for compensating a change in a prechamber pressure. | 07-19-2012 |
20120180756 | MULTI-SENSING FUEL INJECTION SYSTEM AND METHOD FOR MAKING THE SAME - A multi-sensing fuel injection system for internal combustion engines. The system includes a fuel injector for injecting fuel into the internal combustion chamber. The fuel injector is electrically insulated from an engine body of the internal combustion engine by way of a first electrically insulated member. A second electrically insulated member is provided for fixedly disposing the fuel injector within the combustion chamber. The electrical insulation of the fuel injector, in conjunction with the integration of an ion sensing circuit including a resistor and a power source for supplying voltage to the fuel injector, allows for a full measurement of the ionization current. | 07-19-2012 |
20120180757 | FUEL INJECTION VALVE FOR AN INTERNAL COMBUSTION ENGINE - A fuel injection valve for an internal combustion engine may include an injector body having a receiving hole for an injector needle. The receiving hole may be implemented as a blind hole and may form an injector ring chamber in the injector shaft and a cone-shaped valve seat at the base thereof, and a blind injector hole at the tip of the valve seat cone, from which at least one injector hole extends. The injector needle may include an at least partially cone-shaped needle tip and may seal off the blind injector hole, and thus the at least one injector hole, from the injector ring chamber. The needle tip may include a needle pilot adapted in contour and extent to the blind injector hole in the valve seat, the pilot protruding into the blind injector hole and thus reducing a compression volume formed between the valve seat and injector hole. | 07-19-2012 |
20120186555 | DUCTED COMBUSTION CHAMBER FOR DIRECT INJECTION ENGINES AND METHOD - An internal combustion engine includes an engine block having a cylinder bore and a cylinder head having a flame deck surface disposed at one end of the cylinder bore. A piston connected to a rotatable crankshaft and configured to reciprocate within the cylinder bore has a piston crown portion facing the flame deck surface such that a combustion chamber is defined within the cylinder bore and between the piston crown and the flame deck surface. A fuel injector having a nozzle tip disposed in fluid communication with the combustion chamber has at least one nozzle opening configured to inject a fuel jet into the combustion chamber along a fuel jet centerline. At least one duct defined in the combustion chamber between the piston crown and the flame deck surface has a generally rectangular cross section and extends in a radial direction relative to the cylinder bore substantially along the fuel jet centerline. | 07-26-2012 |
20120204830 | METHOD FOR CYLINDER EQUALIZATION IN A MULTI-CYLINDER INTERNAL COMBUSTION ENGINE - A method is provided for equalizing the cylinders of a multi-cylinder internal combustion engine. The internal combustion engine is configured as a reciprocating engine having direct injection and spark ignition. A fuel mass is injected in a cylinder-specific manner, and a cylinder-specific air mass and a cylinder-specific ignition time are each adjustable. An injection amount is equalized, then a charge is equalized and then a mean combustion pressure is equalized. | 08-16-2012 |
20120210975 | INTERNAL COMBUSTION ENGINE, WITH GASOLINE DIRECT INJECTION, HAVING A SYSTEM FOR VARIABLE ACTUATION OF THE INTAKE VALVES - An electronic control means of an engine controls a system for the variable actuation of intake valves and for controlling gasoline injection into the combustion chamber. To the electronic control means there are associated memory means. The electronic means are programmed for detecting a value of a crank angle at which the intake valve is closed, controlling the end of the injection with an anticipation with respect to the closing of the intake valve controlling the start of the injection substantially according to said crank angle limit value, and regulating the injection pressure to a value which is defined as a function of the injection time to guarantee the injection of a predefined amount of gasoline. | 08-23-2012 |
20120216772 | FUEL INJECTOR - The invention relates to a fuel injector for injecting fuel into a combustion chamber of an internal combustion engine, in particular a common-rail injector, comprising a control valve ( | 08-30-2012 |
20120240897 | HEAT ENGINE IMPROVEMENTS - An engine is disclosed comprising a chamber defined by at least one fixed wall and at least one movable wall, the volume of the chamber variable with movement of the movable wall; an injector arranged to inject liquid into the chamber while the chamber has a substantially minimum volume; apparatus through which energy is introduced that is absorbed by the fluid which then explosively vaporizes, performing work on the movable wall; and apparatus which returns the movable wall to a position prior to the work being performed thereon so the chamber has the substantially minimum volume, substantially evacuating the chamber of vaporized fluid without substantially compressing the vaporized fluid. | 09-27-2012 |
20120266842 | Combustion Management System - A combustion management system for a combustion engine having at least one cylinder with an intake means comprising a sliding port valve and an intake solenoid poppet valve arranged in series and provided at a distance from the cylinder ends, and an exhaust solenoid poppet valve provided at each of the cylinder ends, the system comprising: a valve control means for controlling the intake solenoid poppet valve and the exhaust solenoid poppet valve independently of the position of the piston moving within the cylinder to control the compression and expansion ratios, wherein the piston moves over and past the intake means during each stroke. | 10-25-2012 |
20120291747 | INTERNAL COMBUSTION ENGINE FUEL SUPPLY SYSTEM - An internal combustion engine has a fuel supply system which has a fuel pump driving mechanism that limits the relative motion between a part of the mechanism contacting a plunger of the pump and the plunger. | 11-22-2012 |
20120298070 | METHOD FOR EXHAUST GAS RECIRCULATION RATE CONTROL - Various methods for controlling EGR rate are disclosed. In one embodiment, a method for controlling EGR rate in an engine comprises routing exhaust from a first cylinder group to an intake coupled to the engine, and not to atmosphere, routing exhaust from a second cylinder group to atmosphere, and, during a first engine operating condition, injecting fuel to each cylinder in the first cylinder group while injecting fuel to a subset of cylinders of the second cylinder group. | 11-29-2012 |
20130104840 | INTERNAL COMBUSTION ENGINE OPERABLE IN HOMOGENEOUS-CHARGE COMPRESSION MODE | 05-02-2013 |
20130125859 | FUEL INJECTOR HAVING DIFFERENTIAL TIP COOLING SYSTEM AND METHOD - According to various embodiments, a system includes a gasification fuel injector. The gasification fuel injector includes a tip portion, an annular coolant chamber disposed in the tip portion, and a first structural support extending through the annular coolant chamber. The first structural support divides the annular coolant chamber into a first passage and a second passage. | 05-23-2013 |
20130139785 | Hybrid Cycle Rotary Engine - An internal combustion engine includes in one aspect a source of a pressurized working medium and an expander. The expander has a housing and a piston, movably mounted within and with respect to the housing, to perform one of rotation and reciprocation, each complete rotation or reciprocation defining at least a part of a cycle of the engine. The expander also includes a septum, mounted within the housing and movable with respect to the housing and the piston so as to define in conjunction therewith, over first and second angular ranges of the cycle, a working chamber that is isolated from an intake port and an exhaust port. Combustion occurs at least over the first angular range of the cycle to provide heat to the working medium and so as to increase its pressure. The working chamber over a second angular range of the cycle expands in volume while the piston receives, from the working medium as a result of its increased pressure, a force relative to the housing that causes motion of the piston relative to the housing. | 06-06-2013 |
20130199493 | PISTON POSITIONED FOR RECIPROCAL MOVEMENT IN A COMBUSTION ENGINE CYLINDER - A piston is arranged for reciprocal movement in a combustion engine cylinder. Protrusions are or a ridge is arranged half way between flame plume impingement areas in a plane perpendicular to the reciprocal movement and protrude to the combustion chamber having a smooth form adapted for preserving kinetic energy in a flame plume. The protrusion or ridge includes a left side flank, a top section and a right side flank, and a transition section between each of the side flanks and the top section, the transition section including a deflection edge in order to minimize flow losses. | 08-08-2013 |
20130206102 | Hybrid Cycle Combustion Engine and Methods - An improved internal combustion engine of the four-stroke variable volume type operates by refraining from introducing substantial fuel into the working medium during the compression stroke until substantially maximum pressure of the working medium has been reached and utilizing at least one of the following processes: (a) causing combustion of fuel under substantially constant volume conditions; and (b) causing the power stroke to provide a larger volume to combustion products than the compression stroke provides to the working medium. Related methods are also provided. | 08-15-2013 |
20130213348 | ENERGY TRANSDUCER - An energy transducer comprising: a cylinder; a piston within the cylinder connected to a connecting rod extending out of the cylinder and connected to a crankshaft; a chamber within the cylinder defined by the first end of the cylinder and the piston; a direct injector in fluid communication with the chamber and in fluid communication with a fuel tank such that the direct injector is capable of injecting fuel from the fuel tank into the chamber, where the fuel is hydrogen or a mix of hydrogen and oxygen; and an igniter located such that the igniter is capable of igniting the fuel within the chamber; such that ignition of the fuel within the chamber causes an explosion that forces the piston toward the crankshaft, causing the crankshaft to rotate 180°, followed by an implosion that forces the piston away from the crankshaft, causing the crankshaft to complete one full rotation. | 08-22-2013 |
20130220270 | RETROFIT GAS FUEL SUPPLY KIT RETROFITTABLE TO INTERNAL COMBUSTION ENGINE USING LIQUID FUEL - The invention provides a gas fuel supply kit for the existing vehicle (vehicle mounting a gasoline engine, or a diesel engine), in order to use a gas fuel such as hydrogen after wards. | 08-29-2013 |
20130220271 | DEVICE FOR INJECTING FUEL INTO THE COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE - A device for injecting fuel into the combustion chamber of an internal combustion engine with at least one injector includes an injector body equipped with a high-pressure accumulator, a nozzle needle axially displaceably guided in the injector and surrounded by a nozzle chamber, a high-pressure line connecting the high-pressure accumulator to the nozzle chamber, and a resonator line arranged in parallel with the high-pressure line and communicating with the nozzle chamber and opening into the high-pressure accumulator via a resonator throttle. The resonator line and the high-pressure line, at least in their sections adjacent the high-pressure accumulator, are formed in a retaining body which, on its end face, is screwed into the accumulator pipe forming the high-pressure accumulator. | 08-29-2013 |
20130228151 | Two Engine System With A Gaseous Fuel Stored In Liquefied Form - A gaseous fuelled two-engine system comprises a high pressure direct injection engine as the main power source and an auxiliary fumigated engine that can be fuelled with vapor removed from a storage tank that stores the gaseous fuel in liquefied form at cryogenic temperatures. The fuel supply system comprises a cryogenic pump for raising the pressure of the fuel to the injection pressure needed for the high pressure direct injection engine, and the cryogenic pump is powered by the auxiliary fumigated engine. | 09-05-2013 |
20130233274 | FUEL INJECTOR ICING - A fuel injector ( | 09-12-2013 |
20130239925 | Piston Having Combustion Bowl Shaped To Balance Combustion Efficiency And Emission Properties - A piston for a compression ignition internal combustion engine includes a piston body having a combustion face defining a combustion bowl, and the combustion face including a compound bowl surface and a compound rim surface. The combustion face is profiled to balance a combustion efficiency property of the piston with emissions properties of the piston. A ratio of a diameter of the combustion bowl to a diameter of the cylinder bowl bore is from 0.68 to 0.74. Other dimensional and proportional features of the piston support low smoke and NOx production during operation. | 09-19-2013 |
20130255622 | NOZZLE FOR SKEWED FUEL INJECTION - A nozzle for a fuel injector is disclosed. The nozzle may have a body having a base end, a tip end, and a central bore extending from the base end to the tip end. The nozzle may also have a sac located within the central bore at the tip end. Further, the nozzle may have an orifice located within the tip end and in communication with the sac. The orifice may be skewed at an azimuthal angle relative to a radial direction of the central bore. | 10-03-2013 |
20130255623 | FUEL INJECTOR - A fuel injector according to the present invention includes a needle valve mechanism including a needle valve provided near a nozzle portion, and a fuel chamber; a needle valve actuator mounted with a piston, wherein a spring is disposed into the piston; a booster formed with first through third chambers in an upper portion, a middle portion, and a lower portion, respectively, based on a piston, and having only the spring-free piston; a pilot valve operating by a pressure difference between pressure for injection of the fuel chamber and working pressure of a solenoid, having a spool and a spacer mounted above the spool and formed with a second orifice on one side thereof; and a solenoid valve controlling working pressure of fuel to operate the needle valve actuator or the pilot valve. | 10-03-2013 |
20130263819 | DIRECT-INJECTION INTERNAL COMBUSTION ENGINE - An object of the present invention is to provide a direct-injection internal combustion engine capable of suppressing the occurrence of knocking and providing increased combustion stability. The internal combustion includes a supercharger for supercharging intake air that flows into the internal combustion engine, and a fuel injection valve for directly injecting fuel into a combustion chamber in the internal combustion engine. After an exhaust valve and an intake valve are opened during an exhaust stroke, the intake valve and the exhaust valve close at a timing advanced from an intake top dead center, and then the intake valve opens at a timing retarded from the intake top dead center during an intake stroke. The fuel injection valve injects the fuel during an interval between the intake top dead center and the retarded timing. | 10-10-2013 |
20130319368 | COMBUSTION CHAMBER INTAKE AND EXHAUST SHUTTER - An engine includes an engine casing and a first piston configured to reciprocate relative to the engine casing. The first piston has a wall that defines a substantially cylindrical chamber. One or more second pistons are configured to reciprocate inside the substantially cylindrical chamber. A combustion chamber intake port and a combustion chamber exhaust port extend through the wall. A shutter is outside the wall and is movable between a first position substantially blocking fluid flow through the combustion chamber exhaust port but not blocking fluid flow through the combustion chamber intake port and a second position substantially blocking fluid flow through the combustion chamber intake port but not blocking flow through the combustion chamber exhaust port. An actuator causes the shutter to move between the first position and the second position in response to the first piston reciprocating relative to the engine casing. | 12-05-2013 |
20130333660 | INTERNAL COMBUSTION ENGINE HAVING A DIRECT INJECTION SYSTEM AND HAVING A PORT FUEL INJECTION SYSTEM - A system and methods are provided to deactivate a cam driven fuel pump. The system comprises a direct fuel injection system; a port fuel injection system; a pump for the direct injection system driven by a cam, wherein the pump can be activated and deactivated as a function of the activation of the direct injection system. Deactivating a pump when no fuel is pumped through it minimizes wear on pump components and increases efficiency. | 12-19-2013 |
20140048035 | INJECTION VALVE - An injection valve for injecting fuel into a combustion chamber of an internal combustion engine comprises a valve seat, a valve element, at least one injection opening formed in the valve seat and leading to the combustion chamber, the at least one injection opening opened or closed by a stroke motion of the valve element, a catalytic coating provided in a region of the injection valve which faces the combustion chamber, and at least one protuberance which is elongated in a direction of the combustion chamber and projects into the combustion chamber. | 02-20-2014 |
20140048036 | INTERNAL COMBUSTION ENGINE - An internal combustion engine ( | 02-20-2014 |
20140060481 | METHOD AND APPARATUS OF PRODUCING LAMINAR FLOW THROUGH A FUEL INJECTION NOZZLE - A method and apparatus for producing laminar flow through a fuel injection nozzle are provided. The method may comprise the steps of: providing a housing defining a cavity; providing a nozzle assembly having a first portion and a second portion extending from the first portion, the nozzle assembly being disposed within the cavity; placing the nozzle assembly in a closed position wherein the nozzle assembly is engaged with a valve seat defined by the housing; displacing the nozzle assembly and moving the nozzle assembly in an open position; expelling fuel through a gap defined between the second portion of the nozzle assembly and the housing, wherein the gap is sized to restrict fuel flow and create a laminar flow output stream having a Reynolds Number of equal to or less than 2000. The method may further include the step of returning the nozzle assembly to the closed position. | 03-06-2014 |
20140060482 | Six Stroke 'Blackburn Cycle' Engine - A ‘Blackburn Cycle’ internal combustion engine has maximised ‘air only’ induction and ‘air only’ exhaust strokes between usual | 03-06-2014 |
20140069371 | DIRECT-INJECTION INTERNAL COMBUSTION ENGINE WITH OUTWARDLY OPENING INJECTION NOZZLE, AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE - A direct-injection engine having a cylinder in which a combustion chamber is jointly formed by a piston crown of a piston, which is movable along the longitudinal axis of the cylinder, and a cylinder head, and an injection nozzle, which is arranged in the cylinder head on the opposite side of the piston crown eccentrically, spaced apart from the longitudinal axis of the cylinder, for the direct injection of fuel, which injection nozzle has a nozzle needle movable in a nozzle body, wherein the needle in the open position of the nozzle is moved into the combustion chamber, opening up an annular gap arranged between the nozzle body and needle. | 03-13-2014 |
20140090621 | Systems and Methods for Improved Combustion - A combustion system is presented. The combustion system includes a hollow combustion chamber having a chamber head, chamber sidewalls, and a chamber bottom. Further, the combustion system includes a fuel injector coupled to the combustion chamber and configured to introduce a plurality of fuel droplets in the combustion chamber. Moreover, the combustion system includes a first electrode and a second electrode disposed on or about the combustion chamber such that an electromagnetic field is generated between the first electrode and the second electrode in response to an applied electric signal, and where the electromagnetic field is configured to control a trajectory of the plurality of fuel droplets within the combustion chamber. | 04-03-2014 |
20140123932 | CONTROL METHOD AND APPARATUS FOR DUAL INJECTOR OF ENGINE - It is possible to improve fuel efficiency with improved combustion performance of an engine by increase volatility of fuel supplied to a combustion chamber as much as possible and can reduce toxic exhaust substances, by appropriately controlling injection of two injectors in an engine with a dual injector. | 05-08-2014 |
20140123933 | SUPPORT STRUCTURE OF DIRECT FUEL INJECTION VALVE - In a support structure of a direct fuel injection valve capable of supporting a fuel injection valve stably for a long period of time, a valve housing is made of a metal and is provided with a first load bearing portion which is to be supported by an engine in an axial direction of the valve housing, a rear end portion of the fixed core is provided with a second load bearing portion which is to be supported by a resilient holding member in the axial direction, and the first and second load bearing portions are held between the engine and the resilient holding members with a forward set load applied to the resilient holding member by a fuel distribution pipe fitted to a fuel inlet tube and fixed to the engine. | 05-08-2014 |
20140137837 | DIRECT INJECTION EVENT-BASED ENGINE STARTING - A method for starting an internal combustion engine having direct fuel injection, comprising of adjusting a number of direct injections per combustion cycle based on a cylinder event number from a first cylinder event. | 05-22-2014 |
20140158085 | Six-Stroke Combustion Cycle Engine and Process - An internal combustion engine operates on a six-stroke combustion cycle including a first compression stroke, a first power stroke, a second compression stroke, and a second power stroke. A first preliminary fuel charge is introduced to a combustion chamber of the engine during the first compression stroke. Subsequently, a first main fuel charge is introduced and the first preliminary and first main fuel charges are combusted to power the first power stroke. During the second compression stroke, a second preliminary fuel charge is introduced to the combustion chamber. Subsequently, a second main fuel charge is introduced during one of the second compression stroke and second power stroke. The second preliminary and second main fuel charges are combusted to power the second power stroke. | 06-12-2014 |
20140158086 | CONTROL DEVICE OF INTERNAL-COMBUSTION ENGINE - When alcohol-blended fuel is supplied to an internal-combustion engine, the magnitude of alcohol concentration (more particularly, ethanol concentration Cetha) is judged (Step | 06-12-2014 |
20140182543 | FUEL SUPPLY SYSTEM FOR GASOLINE DIRECT INJECTION ENGINE - A fuel supply system for a gasoline direct injection (GDI) engine may reduce noise caused by a high pulsation pressure generated in a high-pressure pump due to fuel pressure control. The fuel supply system may include: a high-pressure pump; a high-pressure rail; an injector that is installed at the high-pressure rail and injects a fuel into a combustion chamber of the GDI engine; and a high-pressure pipe that is connected between the high-pressure pump and the high-pressure rail so as to supply the fuel to the high-pressure rail, wherein a porous member for reducing a pulsation pressure through which a plurality of through holes through which the fuel to be supplied to the high-pressure rail passes, is formed, is installed on a flow passage of the high-pressure pipe. | 07-03-2014 |
20140182544 | SYSTEM AND METHOD OF IMPROVING EFFICIENCY OF AN INTERNAL COMBUSTION ENGINE - An improved multi-stroke DIG or diesel engine and method includes a cylinder formed within an engine cylinder block, a piston is movably disposed within the cylinder, and a combustion chamber is formed in a space between the piston and a cylinder head. An injector is disposed within the engine cylinder head for supplying fuel into the cylinder. An intake valve is disposed within an intake opening formed in the engine and an exhaust valve is disposed within an exhaust opening formed in the engine. An actuator is connected to the piston, wherein movement of the piston causes the actuator to open the exhaust valve a first predetermined amount at a beginning of the compression stroke of the piston to vent air through an exhaust channel formed in the engine and to close the exhaust valve after a predetermined period of time within the compression stroke of the piston. | 07-03-2014 |
20140209058 | THERMALLY STRATIFIED REGENERATIVE COMBUSTION CHAMBER - A method for improving combustion in a combustion chamber of an internal combustion engine, a heat retaining element, and an internal combustion engine are provided. The internal combustion engine includes a main combustion chamber arranged between a head and a reciprocating piston, and a heat retaining element provided between the head and the main combustion chamber. The heat retaining element is a self-supporting structure coupled to the head that is configured to reduce heat transfer from the main combustion chamber into the engine head. The heat retaining element includes a head-facing portion substantially corresponding in shape to a portion of the head facing the main combustion chamber. The heat retaining element is provided such that a gap is provided between the head-facing portion of the heat retaining element and the portion of the head facing the main combustion chamber. | 07-31-2014 |
20140209059 | ENGINE START CONTROL APPARATUS FOR HYBRID VEHICLE - In a hybrid vehicle, when using an ignition start to start a direct injection engine while any one of the cylinders has stopped near top dead center, engine revolutions are raised by producing a first explosion in a first cylinder, which is situated before a second cylinder in an ignition sequence and is in an expansion stroke and in which an exhaust value is not open, by directly injecting fuel into the first cylinder and igniting the fuel. Furthermore, assistance in increasing the engine revolutions is started by transmitting assist torque output from a motor-generator to the direct injection engine via a clutch, in a peak section immediately after the start of increase in the engine revolutions. The stopped direct injection engine can be started using a sufficient required assist torque, namely, electrical energy, whereby the electrical energy for engine starting that is always reserved in a battery (accumulator apparatus) is reduced and therefore a travel range is increased and vehicle fuel consumption is improved appropriately. | 07-31-2014 |
20140216393 | DIRECT-INJECTION ENGINE COMBUSTION CHAMBER STRUCTURE - A direct-injection engine combustion chamber structure including, at a top surface of a piston, an inclined surface and an orthogonal surface. The inclined surface, continuous with an inner peripheral wall surface of a cavity, extends outward in a radial direction of the piston and becomes shallower toward an outer side in a radial direction of the piston. The orthogonal surface, continuous with an outer periphery of the inclined surface, without a gap, extends to an outer peripheral surface of the piston and is orthogonal to a central axis of the piston. | 08-07-2014 |
20140238338 | VARIABLE COMPRESSION ENGINE - The variable compression engine may include a cylinder formed in a cylinder block, a piston moving upward and downward in the cylinder, a combustion chamber formed by the cylinder and the piston for combusting a fuel-air mixture, a fuel injector configured to inject a fuel into the combustion chamber, an exhaust valve selectively opened to discharge a combustion gas from the combustion chamber, an intake valve selectively opened to supply an intake air into the combustion chamber, an intake manifold that guides the intake air into the cylinder, an air injector configured to suck a gas from the combustion chamber and transfer the gas into the intake manifold, an air passage configured to connect the air injector and the intake manifold so that the gas sucked by the air injector passes therethrough, and a control unit configured to control an operation of the air injector. | 08-28-2014 |
20140245990 | METHOD AND SYSTEM OF THERMOCHEMICAL REGENERATION TO PROVIDE OXYGENATED FUEL, FOR EXAMPLE, WITH FUEL-COOLED FUEL INJECTORS - The present disclosure is directed to integrated injector/igniters providing efficient injection, ignition, and complete combustion of various types of fuels. One example of such an injectors/igniter can include a body having a base portion opposite a nozzle portion. The base portion receives the fuel into the body and the nozzle portion can be positioned adjacent to the combustion chamber. The injector further includes a valve carried by the nozzle portion that is movable between a closed position and an open position to inject the fuel into the combustion chamber. An actuator is coupled the valve and extends longitudinally through the body towards the base portion, and a driver is carried by the body and is movable between a first position and a second position. Thermochemical regeneration of waste heat produced by combustion and associated combustion events is captured and invested in endothermic reactions to improve efficiency of the combustion event. Hydrogen characterized fuel may be used as a heat sink. | 09-04-2014 |
20140251260 | METHOD FOR CONTROLLING AN INJECTOR - In a method for controlling a valve which injects fuel into a combustion chamber of an engine and which has a valve member which closes a valve opening, and an electric actuator which drives the valve member to carry out strokes for releasing the valve opening and to which electrical control signals are applied for triggering valve member strokes of a defined stroke size, in order to compensate for an age-related stroke reduction of the valve member and deteriorated metering of the injected fuel related thereto, a stroke loss model into which temperature and temperature changes at the valve as well as the number of strokes carried out by the valve member are continuously incorporated is used to predict a reduction of the stroke size as a stroke loss and to correct the control signals using the predicted stroke loss. | 09-11-2014 |
20140251261 | Injection Nozzle - An injection nozzle for the direct injection of a liquid fuel into a cylinder chamber of a piston engine includes multiple spray holes for generating injection jets. The multiple spray holes are distributed on a nozzle body of the injection nozzle in the peripheral direction. At least one pair of spray holes adjoining in the peripheral direction is provided, the longitudinal center axes of which enclose a pair angle in the peripheral direction that is smaller than an adjacent angle which is enclosed between the longitudinal center axis of the respective spray hole of the spray hole pair in the peripheral direction and a longitudinal center axis of a spray hole adjoining the spray hole pair in the peripheral direction. | 09-11-2014 |
20140261300 | FUEL INJECTION CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - A fuel injection control apparatus for an internal combustion engine includes a fuel injection valve and an ignition device. The fuel injection control apparatus further includes a determination unit and an injection control unit. The determination unit determines that an implementation condition is satisfied and the injection control unit controls the fuel injection valve. The injection control unit controls the fuel injection valve to (i) begin injecting fuel during a compression stroke of the engine and (ii) complete injecting fuel at an injection completion timing according to an ignition timing of the ignition device, during start period after the engine is started, when the implementation condition is satisfied. | 09-18-2014 |
20140305402 | Combustion Method and Internal Combustion Engine - A combustion process with auto-ignition for direct-injection internal combustion engines involves dividing injection jets at a jet divider contour into a first partial quantity, a second partial quantity, and third partial quantities. The first partial quantity enters into the piston cavity, the second partial quantity enters via the piston step into a region between the piston crown and the cylinder head, and the third partial quantities, starting from the respective injection jet, spread out on both sides in the peripheral direction in opposite directions along the piston step, and the respective third partial quantities collide with one another between two adjacent injection jets within the piston step and are deflected radially inwardly. The first partial quantity and the second partial quantity form a first combustion front and a second combustion front, and the partial quantities which in each case are jointly deflected inwardly form a third combustion front radially inwardly into a gap between the injection jets. The injection jets are deflected upstream from the jet divider contour in the direction of the piston by means of a resultant flow formed essentially from a swirl, a squish gap flow, and a jet flow. | 10-16-2014 |
20140331961 | PISTON HAVING COMBUSTION BOWL AND ENGINE USING SAME - A piston for balancing combustion efficiency and smoke generation with NOx production includes a combustion face forming a combustion bowl having a compound curvature increased in sharpness in a radially outward direction. An outer bowl surface defines a large radius of curvature adjacent an inner bowl surface, and a medium radius of curvature adjacent a cylindrical wall surface. The inner bowl, outer bowl, and wall surfaces together contour the combustion bowl, such that a diameter of the combustion bowl is about 124 mm so as to establish a bowl to bore ratio of about 0.71 in a direct injection compression ignition engine with a compression ratio of about 15:1 to 17:1. | 11-13-2014 |
20140338633 | FUEL INJECTOR ASSEMBLY AND FUEL INJECTION SYSTEM - A fuel injector assembly is adapted to inject a compressed fuel into a combustion chamber of an internal combustion engine. The compressed fuel is stored in a fuel storage tank at a fuel storage pressure and delivered to the fuel injector assembly through a fuel supply line at a fuel supply pressure. The fuel supply pressure is lower than the fuel storage pressure. The fuel injector assembly includes a fuel injector and an adapter valve. The fuel injector injects the compressed gas fuel. The adapter valve is positioned between the fuel injector and the combustion chamber. The adapter valve allows the compressed gas fuel injected by the fuel injector to be discharged from an outlet of the adapter valve into the combustion chamber in an injection direction while preventing blowback gas entering the outlet from passing through the adapter valve in an ingress direction opposite the injection direction. | 11-20-2014 |
20140360459 | Reduced Torque Variation for Engines with Active Fuel Management - In one exemplary embodiment, a method for active fuel management in an engine having a plurality of cylinders is provided, the method including stopping a fuel flow into a first set of the plurality of cylinders, the stopping causing a deactivation of the first set of cylinders and continuing injection of fuel into a second set of the plurality of cylinders to provide power while the first set of cylinders are deactivated. The method also includes injecting gas into the first set of the plurality of cylinders when each of the first set of cylinders are at bottom dead center, the injected gas increasing a cylinder pressure in each of the first set of cylinders that reduces an amplitude of first order torque variations during operation of the engine while the first set of cylinders are deactivated. | 12-11-2014 |
20140360460 | SYSTEM AND METHOD FOR CONTROL OF FUEL INJECTOR SPRAY USING ULTRASONICS - The present disclosure provides an improved system and method of operating a fuel injector of an engine to provide at least two different types of fuel spray in a combustion chamber of the engine by application of ultrasonic pulses to fuel in the fuel injector during an injection event. A first type of spray includes larger droplets that reduce the effective diffusion combustion area around the droplets and a second type of spray includes relatively small droplets that increase the effective diffusion combustion area around the droplets. | 12-11-2014 |
20140366835 | AVOIDANCE OF A SAFETY FUEL CUT-OFF DURING PARTIAL ENGINE OPERATION - A method for operating an internal combustion engine that includes at least two cylinders, includes operating the internal combustion engine in a first operating mode in partial engine operation, in which at least one of the cylinders is not fired, monitoring the internal combustion engine during the partial engine operation for potentially torque-increasing errors, and switching over from the partial engine operation into a full engine operation in which all of the cylinders are fired when a potentially torque-increasing error is detected. | 12-18-2014 |
20140366836 | ACTUATOR FOR LOBE SWITCHING CAMSHAFT SYSTEM - Systems and methods for actuating lobe switching in a camshaft system in an engine are disclosed. In one example approach, a method comprises deploying a first pin into a groove of a camshaft outer sleeve while a second pin remains in place due to an absence of a groove in which to deploy, and maintaining the second pin in place with a ball locking mechanism even after the second pin is exposed to a vacated groove in the camshaft outer sleeve. | 12-18-2014 |
20140373805 | INTERNAL COMBUSTION ENGINE - An internal combustion engine has a cylinder, a cylinder head mounted to the cylinder, a piston disposed in the cylinder, and a fuel injection valve. A combustion chamber is defined by the piston, the cylinder head and the cylinder. The fuel injection valve has a plurality of injection holes that injects fuel directly inside the cylinder from a side of the combustion chamber. The injection holes inject fuel in a spray shape with an overall shape, which is formed by a plurality of sprays being injected from the injection holes. The overall shape expands toward the cylinder head and forms one part of a conical shape that is dented near the piston. Central axes of some of the injection holes are oriented toward a boundary portion near the exhaust valve formed at a crown surface of the piston and an inner wall of the cylinder when fuel is injected. | 12-25-2014 |
20140373806 | FUEL INJECTOR FOR MULTI-FUEL INJECTION WITH PRESSURE INTENSIFICATION AND A VARIABLE ORIFICE - A multi-fuel injector has an internal pressure intensifier which has means to intensify fuels with different viscosities, cetane or octane numbers, with high viscosity fuel being used to intensify both itself and low viscosity fuels to high pressure for direct injection into combustion chamber. A combustion method using such a method of fuel injection is also disclosed. A multi-fuel injector with variable orifice nozzle and variable spray patterns is also disclosed. | 12-25-2014 |
20150013637 | CONTROL DEVICE AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE WITH SUPERCHARGER - An internal combustion engine ( | 01-15-2015 |
20150020767 | Piston, Engine And Operating Method For Reduced Production Of Particulate Matter - A piston for reduced production of particulate matter during combustion of a fuel directly injected after a top dead center position includes a piston body defining a piston body diameter of about 263 mm, and a combustion face upon the first axial body end. The combustion face includes a combustion bowl, and an annular piston rim extending circumferentially around the combustion bowl. Inner and outer rim surfaces together comprise a horizontal width of the rim in a ratio of about 1:1 to about 2:1. The inner rim surface includes a chamfer sloping from about 9° to about 11°, such that a profile of the rim is relieved to limit deflection by the piston of the directly injected fuel toward a cylinder wall. | 01-22-2015 |
20150040857 | INTERNAL COMBUSTION ENGINE INCLUDING AN INJECTOR COMBUSTION SEAL POSITIONED BETWEEN A FUEL INJECTOR AND AN ENGINE BODY - This disclosure provides a fuel injector seal assembly comprising a seal component fabricated or formed of a first material and a thermally conductive or heat transfer component fabricated or formed of a second material that is different from the first material. The first material has a greater strength than the second material, and the second material has a greater thermal conductivity than the first material. Thus, the injector seal assembly is able to provide a primary benefit of a combustion seal while also providing an enhanced benefit of transferring heat from one portion of the fuel injector to another portion of the fuel injector. | 02-12-2015 |
20150047599 | COMBUSTION CHAMBER STRUCTURE FOR DIRECT INJECTION ENGINE - A combustion chamber structure of a direct injection engine includes a cavity recessed in a center of a top of a piston into which fuel is injected from an injector disposed above the piston. The cavity includes a curved section on a lower part of a side wall of the cavity and which has a vertical cross-sectional shape defined by an arc protruding outward in a radial direction of the piston. The cavity also includes a bottom wall straight line section on a bottom wall. The cavity also includes a bottom wall transition curved section between the bottom wall straight line section and the curved section which has a vertical cross-sectional shape defined by a transition curve having a curvature radius continuously changing from a curvature radius of the arc to an infinite value. | 02-19-2015 |
20150047600 | Method for Operating an Internal Combustion Engine - A method for operating an internal combustion engine of a motor vehicle involves directly injecting fuel into a combustion chamber using an injection device, and a mixture of the fuel and air is ignited in the combustion chamber by an ignition device. The internal combustion engine is operated selectively in at least one first operating mode with at least one first valve lift of at least one gas exchange valve of the internal combustion engine, associated with the combustion chamber, or in at least one second operating mode with at least one second valve lift of the gas exchange valve, which is smaller than the first valve lift. For assisting a charge movement of the mixture in the second operating mode, at least one further injection of fuel directly into the combustion chamber is carried out prior to the ignition. | 02-19-2015 |
20150068491 | FUEL DELIVERY SYSTEM INCLUDING INTEGRATED CHECK VALVE - A fuel delivery system is provided to reduce the pressure pulsations and noise vibration and harshness of direct injection systems. The fuel delivery system includes an elastic fuel line positioned between a first fuel pump and a second fuel pump and a check valve positioned in the elastic fuel line near the inlet of the high pressure pump, the check valve including an external housing having a peripheral surface with a greater diameter than an unstretched inner diameter of the elastic fuel line. | 03-12-2015 |
20150068492 | Two Stroke,Opposed-Piston Engine With Engine Braking - In a two-stroke opposed-piston engine, a ported cylinder with a pair of opposed pistons is equipped with an engine brake including an engine braking valve that can be opened to release air from the cylinder as the pistons cycle between BDC and TDC positions. | 03-12-2015 |
20150075484 | DIRECT INJECTION FUEL PUMP - Methods and systems are provided for a direct injection fuel pump. The methods and system control pressure within a compression chamber so as to improve fuel pump lubrication. | 03-19-2015 |
20150075485 | TWO-STROKE UNIFLOW ENGINE - A two-stroke uniflow engine is provided with: a cylinder; a piston; an exhaust valve that is opened and closed in order to discharge exhaust gas that is generated inside the cylinder; a scavenging port that takes active gas into the interior of the cylinder in accordance with a sliding movement of the piston; a fuel injection port that is provided in the internal circumferential surface of the cylinder; a fuel injection valve that injects fuel gas into the fuel injection port; and a fuel injection control unit that executes control of the injection of the fuel gas in the fuel injection valve, wherein the fuel injection control unit decides at least one of an injection pressure and an injection time of the fuel injection valve based on a change in pressure inside the cylinder that is caused by a reciprocating movement of the piston. | 03-19-2015 |
20150083073 | CONTROL DEVICE OF COMPRESSION-IGNITION ENGINE - A control device of a compression-ignition engine is provided. The device includes an engine having a cylinder, a fuel injection valve for injecting a fuel, an exhaust valve mechanism for switching an operation mode of an exhaust valve between a normal mode and an open-twice mode, a throttle valve disposed on an intake passage, and a controller for operating the engine by compression-ignition combustion of mixture gas inside the cylinder at least within a low engine load range. The controller suspends the fuel injection by the fuel injection valve when a predetermined fuel cut condition is met while the engine decelerates, and the controller fully closes the throttle valve and controls the exhaust valve mechanism to operate in the open-twice mode during the fuel cut. When a predetermined fuel resuming condition is met, the controller restarts the fuel injection, opens the throttle valve, and causes the compression-ignition combustion. | 03-26-2015 |
20150083074 | SELF COOLED ENGINE - Self-cooled engine including a cylinder, a cylinder head and a turbo-piston which freely reciprocates inside the cylinder. The cylinder head has a valve that achieves circumferential suction of air-fuel mixture into the cylinder. The valve mechanism is closed and opened by cylindrical cam by means of cam shaft. Circumferential suction of air-fuel mixture enables the cylinder to cool itself and to burn the fuel at the energy center effectively. The force of incoming stream of air-fuel mixture rotates the impeller on the piston which acts as a fan to cool the cylinder walls. The impeller blades deflect the flame from reaching the cylinder walls and acts as a thermal barrier between the energy center and cylinder walls. The high intensity compression swirl (HICS) created at the end of the compression stroke to ensure that the fuel combustion is efficient and instantaneous release of maximum energy. | 03-26-2015 |
20150096528 | QUATERNARY AMMONIUM DETERGENT FUEL ADDITIVES - A fuel soluble additive for a diesel engine, a method for improving performance of fuel injectors and a method for cleaning fuel injectors for a diesel engine. The fuel soluble additive includes a quaternary ammonium salt derived from the reaction of (a) a hydrocarbyl amine containing at least one tertiary amino group, (b) an epoxide compound selected from a glycidol, a glycidyl ether, glycidyl ester, polyglycidyl ether, a polyglycidyl ester, and combinations thereof, wherein substituents of the glycidyl group have, on average, less than five carbon atoms per hetero atom, and (c) optionally a proton donor. | 04-09-2015 |
20150096529 | COLD START-UP SYSTEM OF AN INTERNAL COMBUSTION ENGINE AND INTERNAL COMBUSTION ENGINE - The present invention relates to a cold start-up system of an internal combustion engine for an engine burning gasoline, ethanol or a mixture of fuels, composed or not of a preponderant fraction of ethanol, which comprises at least one strategy of pre-injection of fuel through at least one injection nozzle, before activation of the starter motor, or during activation, in an asynchronous manner. | 04-09-2015 |
20150096530 | Fuel System Protection In A Multi-Fuel System Internal Combustion Engine - A technique for fuel system protection for an internal combustion engine includes introducing a directly injected fuel into a combustion chamber through a direct fuel injector, introducing a fumigated fuel upstream of an intake valve, selectively operating the internal combustion engine with at least one of the directly injected fuel and the fumigated fuel, determining a temperature of the direct fuel injector as a first function of engine operating parameters, and performing a temperature mitigation technique when the temperature rises above a first predetermined value such that the temperature is maintained below a second predetermined value. | 04-09-2015 |
20150101564 | METHODS AND SYSTEMS FOR AN INTAKE OXYGEN SENSOR - Methods and systems are provided for correcting an EGR rate determined based on an intake manifold oxygen sensor based on an air-fuel ratio of EGR. The output of the sensor is corrected to compensate for extra fuel in rich EGR or extra air in lean EGR and used to reliably estimate the EGR rate. One or more engine operating parameters are adjusted based on an uncorrected output of the sensor. | 04-16-2015 |
20150107548 | SEALING SYSTEM FOR AN ENGINE - A sealing system comprising a cylinder head, a coupler, a fuel injector line, a seal retainer, and a seal. The coupler is positioned in the cylinder head, and the fuel injector line extends into the coupler so as to at least partially define a fuel leak passageway therebetween. The seal retainer yieldably urges the seal towards a seated position in which the seal established a sealed connection between the fuel injector line and the coupler, so as to block ingress of moisture into the fuel leak passageway. Further, the seal retainer allows movement of the seal away from the seated position to an unseated position in which the sealed connection between the fuel injector line and the coupler is broken in response to pressurized leaked fuel, in the fuel leak passageway, so as to allow the pressurized leaked fuel to flow out of the fuel leak passageway. | 04-23-2015 |
20150114339 | COLD START STRATEGY AND SYSTEM FOR GASOLINE DIRECT INJECTION COMPRESSION IGNITION ENGINE - A method for starting a compression ignition engine having at least one cylinder with a reciprocating piston located therein, an intake valve configured to control the intake of air to an intake port of the cylinder and an exhaust valve configured to control the expulsion of gas from an exhaust port of the cylinder. The method includes the steps of: cranking the engine, conditioning intake air at the intake port of the cylinder to raise the temperature of air in the cylinder, controlling a valve timing the intake valve and/or the exhaust valve to allow the piston to compress the air within the cylinder, thereby increasing the temperature of the air within the cylinder, and injecting fuel into the cylinder when the air within the cylinder has been heated to a temperature sufficient to support compression ignition of a gasoline and air mixture within the cylinder. | 04-30-2015 |
20150114340 | INTERNAL COMBUSTION ENGINE CONTROL APPARATUS - When the starting timing of an NVO period exists at the delayed-angle side of the starting timing of a first NVO period, fuel injection into a cylinder is not started; when the starting timing of an NVO period exists between the starting timing of the first NVO period and the starting timing of the second NVO period, fuel injection into the cylinder is started at a given timing that includes the exhaust top death center; when the starting timing of an NVO period exists between the starting timing of the second NVO period and the starting timing of the third NVO period, fuel injection into the cylinder is started at a given timing that does not include the exhaust top death center, and that exists at both the advanced-angle and delayed-angle sides of the exhaust top death center. | 04-30-2015 |
20150128899 | Piston Having Combustion Bowl Shaped to Balance Combustion Efficiency and Emission Properties - A piston for an internal combustion engine includes a piston body having an outer cylindrical surface defining a longitudinal piston axis, a combustion face defining a compound combustion bowl, and a compound rim extending radially outward from the compound combustion bowl to the outer cylindrical surface. The compound combustion bowl includes a convex inner bowl surface defining a conical projection and a concave outer bowl surface. The compound rim includes a flat outer rim surface adjoining the outer cylindrical surface, and a convex inner rim surface adjoining the compound combustion bowl. The convex inner bowl surface transitions smoothly to the concave outer bowl surface, and the convex inner rim surface transitions abruptly to the concave outer bowl surface at an edge of the compound combustion bowl. | 05-14-2015 |
20150136069 | INVERTED V-8 INTERNAL COMBUSTION ENGINE AND METHOD OF OPERATING THE SAME MODES - An internal combustion engine having two banks of four piston and cylinder assemblies arranged in an inverted V configuration so that there are four pairs of assemblies each pair having cylinders with adjacent combustion chambers intercommunicated by a passage extending therebetween. Crank shaft driven pistons in said cylinders movable within the combustion chambers thereof through successive cycles each including a compression stroke followed immediately by a power drive stroke. Computer controlled fuel injectors are capable of being selectively controlled to operate either to inject fuel into (1) both cylinders of a pair to establish therein a double fire single expansion mode, or (2) into only one cylinder of a pair to establish therein a single fire double expansion mode with the one cylinder receiving the injection being alternated between the pair every predetermined number of piston cycles. A method of operating the engine as a prime mover of a vehicle having a cruise control system manually actuated to effect automatic movement of a normally manually moved accelerator pedal either in (1) a normal mode wherein the amount of fuel injected is maintained substantially that an optimum level and power variation is obtained in response to manual pedal movements by varying the relative number of injector pairs operating in modes ( | 05-21-2015 |
20150136070 | CONTROL APPARATUS AND METHOD FOR INTERNAL COMBUSTION ENGINE - A control apparatus for an internal combustion engine is capable of switching a combustion mode between a spark ignition combustion mode for combusting a mixture formed in a combustion chamber with spark ignition and a compression ignition combustion mode for combusting the mixture with compression ignition. When the combustion mode is switched from the spark ignition combustion mode to the compression ignition combustion mode, in an internal EGR control for keeping a part of a burnt gas generated by the combustion remaining as an internal EGR in the combustion chamber, an internal EGR amount of the internal EGR is increased, an ignition timing is advanced, and a fuel injection amount is decreased so that an oxygen density contained in the internal EGR used to form the mixture increases. | 05-21-2015 |
20150136071 | Isothermal Compression Based Combustion Engine - Systems and methods are disclosed that include operating an isothermal compression based combustion (IsoC) engine by injecting isothermally compressed air into a combustion engine immediately prior to a combustion event in order to increase the efficiency of the engine, improve emissions, and substantially eliminate autoignition and associated design constraints. The IsoC engine utilizes an intercooled compressor to isothermally compress air that is stored in a plurality of capacitance tanks prior to delivery of the compressed air to the combustion engine. The IsoC engine allows combustion to be selectively terminated to increase fuel efficiency, thereby resulting in a hybrid compressed air-motor and internal combustion operated IsoC engine. | 05-21-2015 |
20150144093 | CONTROL DEVICE FOR DIRECT INJECTION GASOLINE ENGINES - A control device for direct injection gasoline engines includes a fuel injection control part (engine control device) composed to control a fuel injection aspect of an injector. The fuel injection control part changes an injection mode of the injector by changing the lift amount of the injector and the injection interval of the fuel respectively. The fuel injection control part switches between a first injection mode, which includes multiple times of the fuel injection with the small lift amount of the injector and the small interval of the fuel injection, and a second injection mode, which includes multiple times of the fuel injection with the bigger lift amount of the injector and the larger interval of the fuel injection than those of the first injection mode, according to an operating state of the engine body. | 05-28-2015 |
20150292440 | DIRECTLY INJECTING GAS VALVE - A gas injector is provided for the direct injection of a gaseous medium into a combustion chamber of an internal combustion engine, which includes an adjustable valve member, a stationary sealing sleeve having a first sealing seat, a movable sealing element having a second sealing seat and a restoring element for resetting the sealing element and the valve member to an initial position, the first sealing seat and the second sealing seat forming a valve seat of the gas injector, and the valve member being disposed in the sealing sleeve. | 10-15-2015 |
20150292458 | FUEL INJECTION APPARATUS FOR INTERNAL COMBUSTION ENGINE - A fuel injection apparatus for an internal combustion engine having a plurality of cylinders is provided. The fuel injection apparatus includes a fuel injection valve and an in-cylinder pressure sensor disposed for each of the plurality of cylinders. The fuel injection valve injects fuel into a combustion chamber of each cylinder and the in-cylinder pressure sensor detects a pressure in the combustion chamber. The fuel injection apparatus includes a cylinder pair actuating circuit and a noise suppressing circuit. The cylinder pair actuating circuit is provided corresponding to a cylinder pair which is a combination of two cylinders included in the plurality of cylinders, for supplying actuating current to two actuating solenoids of the two fuel injection valves mounted on the cylinder pair. The noise suppressing circuit is provided between the cylinder pair actuating circuit and the actuating solenoids. The noise suppressing circuit includes two output terminals connected respectively to the two actuating solenoids of the two fuel injection valves. When actuating one of the two injection valves, the grounding impedance between the output terminal connected to the actuating solenoid of the other of the two injection valves and the ground, is reduced. | 10-15-2015 |
20150292459 | FUEL PUMP ASSEMBLY - A fuel pump assembly for an internal combustion engine comprising at least one engine cylinder into which fuel is injected, each cylinder having an associated cylinder piston which reciprocates within the associated cylinder in use. The fuel pump assembly comprises a plurality of unit pumps each having a pumping plunger for pressurising fuel within an associated pump chamber; and a crank shaft which is driven rotationally by means of the or each cylinder piston. The crank shaft carries a cam arranged to drive the pumping plungers of the unit pumps and further carries at least one crank assembly which is coupled to a respective one of the cylinder pistons, in use. The plurality of unit pumps are radially spaced around the crank shaft and located at the same axial position along the crank shaft so that each of the unit pumps is driven, in use, by the same cam. | 10-15-2015 |
20150300285 | VARIABLE STROKE DIRECT INJECTION FUEL PUMP SYSTEM - A variable stroke direct injection (DI) fuel pump system for an engine includes a DI fuel pump having a stroke member and configured to pump a quantity of fuel based on a stroke of the stroke member. The system includes a variable fuel pump actuator assembly comprising an actuator member configured to actuate the stroke member, a control valve configured to control a flow of hydraulic fluid to the actuator member, and a hydraulic fluid pump configured to pump the hydraulic fluid and be actuated by one or more lobes of a camshaft. The system also includes an engine control unit (ECU) configured to control a variable stroke of the stroke member by controlling the control valve based on one or more operating parameters of the engine. | 10-22-2015 |
20150308368 | ACTIVE ENGINE FUEL PRESSURE PULSATION CANCELLATION TECHNIQUES - An active fuel pressure pulsation cancellation technique includes receiving, at a controller of an engine having a camshaft-driven fuel pump, an unfiltered fuel pressure signal indicative of a measured pressure of fuel in a fuel rail. The technique includes detecting, at the controller, fuel pressure pulsations in the fuel rail based on the unfiltered fuel pressure signal. The technique includes generating, at the controller, a cancellation signal based on an opposite polarity of the fuel pressure pulsations. The technique also includes controlling, by the controller, an actuator associated with the fuel rail using the cancellation signal to cause the actuator to generate liquid-borne cancellation pulsations that cancel the fuel pressure pulsations in the fuel rail. | 10-29-2015 |
20150345451 | Motorcycle Engine with Direct Fuel Injection - An air cooled V-twin engine comprises first and second cylinders, first and second cylinder heads, first and second fuel injectors, a fuel tank, and first and second fuel pumps. The cylinders and the cylinder heads comprise cooling fins and define first and second combustion chambers. Each of the fuel injectors is attached to a respective one of the cylinder heads in a manner such that they can discharge fuel directly into said combustion chamber. The first fuel pump is operatively connected to the fuel tank and to the second fuel pump in a manner such that the first fuel pump can pump fuel from the fuel tank to the second fuel pump. The second fuel pump is operatively connected to the fuel injectors in a manner such that the second fuel pump can pump fuel to the fuel injectors. | 12-03-2015 |
20150354491 | ADJUSTING PUMP VOLUME COMMANDS FOR DIRECT INJECTION FUEL PUMPS - Methods are provided for controlling a direct injection fuel pump, wherein a solenoid spill valve is energized and de-energized according to certain conditions. A control strategy is needed to operate the direct injection fuel pump outside regions where pump operation may be variable and inaccurate, where the regions may be characterized by smaller pump commands as well as smaller displacement volumes. To maintain a suitable range of pump commands and displacements while operating outside the low accuracy regions, a method is proposed that involves clipping calculated pump commands when the calculated pump commands lie within the low accuracy regions. | 12-10-2015 |
20150361867 | INTERNAL COMBUSTION ENGINE - An internal combustion engine of a compression ignition type includes: a fuel injection valve that injects fuel to a combustion chamber; a cylinder head that includes a central portion as a portion forming the combustion chamber; and a piston that includes a cavity exposed to the combustion chamber. | 12-17-2015 |
20150369158 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - A control device for an internal combustion engine is provided. The internal combustion engine includes an in-cylinder injector. The control device includes an electronic control unit. The electronic control unit is configured to: control energizing time for the in-cylinder injector when a partial lift injection is performed such that the partial lift injection becomes maximum partial lift injection with a longest energizing time in the partial lift injection; and control the number of energizations for performing the maximum partial lift injection during a single injection stroke such that a total of injection amounts of the maximum partial lift injection by the number of the energizations is equal to or less than a required injection amount as a target amount for the injection amount of a single injection stroke. | 12-24-2015 |
20150369177 | ENGINE SYSTEM HAVING PIEZO ACTUATED GAS INJECTOR - A fuel injector is disclosed for use in an engine system. The fuel injector may have a body, a first piston slidingly disposed in the body and having a first pressure area, and a second piston slidingly disposed in the body and having a second pressure area. The fuel injector may also have a hydraulic coupling connecting the first and second pressure areas, and a piezo stack connected to move the first piston. The fuel injector may additionally have a valve needle configured to engage and be moved by the second piston. The first pressure area may be larger than the second pressure area. | 12-24-2015 |
20150369193 | HIGH PRESSURE FUEL DELIVERY PIPE ASSEMBLY FOR DIRECT INJECTION OF FUEL - A fuel delivery pipe assembly for direct injection of fuel includes a fuel delivery pipe, a plurality of fuel injector sockets for containing a fuel injection valve, and a mounting bracket of sheet metal fixedly assembled with the fuel delivery pipe at a position adjacent each fuel injector socket. The mounting bracket has a mounting plate portion formed with a mounting hole for insertion of a bolt and a through hole for insertion of each fuel injector socket spaced from the mounting hole in the longitudinal direction of the delivery pipe. A reinforcement bracket is integrally assembled with the mounting bracket at the opposite side of the fuel injector socket in the longitudinal direction of the delivery pipe, and a reinforcement rib extended from an arm portion of the reinforcement bracket is provided on the mounting plate portion between the mounting hole and the through hole for the fuel injector socket. | 12-24-2015 |
20150377171 | SELECTIVE CYLINDER DEACTIVATION APPARATUS AND METHOD FOR HIGH POWER DIESEL ENGINES - Various embodiments relate to a method of operating an engine system with injectors having nozzle sac volume. The engine system may be a four-stroke, high power engine having a high-pressure common-rail injection system. A number of engine cylinders to fire is selected based on a fuel injection quantity per selected engine cylinder such that a nitrogen oxides (NO | 12-31-2015 |
20150377175 | DEVICE AND METHOD FOR CONTROLLING INTERNAL COMBUSTION ENGINE - A control device for an internal combustion engine including a variable compression ratio mechanism arranged to vary a relative position relationship between a piston and a cylinder, and thereby to vary a mechanical compression ratio, and a fuel injection valve arranged to directly inject a fuel within a combustion chamber, the control device includes: at least in an engine high load region including a full open, the compression ratio at an exhaust upper dead center being controlled to a low compression ratio, a fuel injection start timing of the fuel in which an air-fuel mixture is formed within the combustion chamber, and which is ignited by an ignition plug being set before an exhaust upper dead center so that a fuel injection period crosses an upper dead center. | 12-31-2015 |
20150377185 | Injector, in particular an injector for gaseous fuels - An injector, in particular a blow-in injector for gaseous fuel, including a first sealing element and a second sealing element, and in the closed state of the injector a first sealing region is configured between the first and second sealing element, at least one of the sealing elements having an elastic deformation region, the elastic deformation region being set apart from the sealing region between the first and second sealing element. | 12-31-2015 |
20150377205 | INTERNAL COMBUSTION ENGINE AND VEHICLE - An internal combustion engine includes a cylinder block defining a combustion chamber therein, and a cylinder head mated to the cylinder block such that the cylinder head covers the combustion chamber. The internal combustion engine also includes a fuel nozzle configured for injecting a fuel into the combustion chamber and a plasma igniter configured for ejecting a plasma into the combustion chamber to ignite the fuel. The plasma igniter extends through the cylinder head and protrudes into the combustion chamber. The internal combustion engine further includes a dielectric coating disposed on the cylinder head. A vehicle including the internal combustion engine is also disclosed. | 12-31-2015 |
20160010609 | DEVICE FOR INJECTING FUEL INTO THE COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE | 01-14-2016 |
20160017821 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - The present invention is equipped with: a valve opening/closing timing control mechanism that sets the opening/closing timing of an exhaust valve; and a lock mechanism that holds the rotation phase of the valve opening/closing timing control mechanism in a first lock phase, in which the open state of the exhaust valve is maintained when the intake valve opens. | 01-21-2016 |
20160024993 | COMPRESSED AIR SUPPLY METHOD - A compressed air supply system includes an engine. The engine has at least one combustion chamber defined by a cylinder, a piston operable to reciprocate within the piston, and an injector operable to inject fuel into the cylinder. The engine further includes at least one intake valve, at least one exhaust valve, and at least one compressed air valve, all associated with the cylinder. The engine has a combustion cycle for producing power, wherein the combustion cycle includes a compression stroke, a power stroke, an exhaust stroke, and an intake stroke. The engine also has an air compression cycle for producing compressed air. The air compression cycle includes an air compression intake stroke and an air compression stroke. At least one control component is in communication with the engine and is configured to selectively control the engine to alternate between the combustion cycle and the air compression cycle. | 01-28-2016 |
20160025030 | CURRENT PULSING CONTROL METHODS FOR LIFT FUEL PUMPS - Methods are provided for controlling a lift fuel pump configured to provide pressurized fuel to a direct injection fuel pump that further pressurizes the fuel to be sent to a plurality of direct injectors. Control strategies are needed that provide reliable and robust operation of the lift fuel pump by selectively providing current to the pump while optimizing energy consumption. To maintain a desired range of lift fuel pump operation, methods are proposed that involve sending current pulses to the lift fuel pump and switching to continuous current when fuel vapor is detected at an inlet of the direct injection fuel pump. | 01-28-2016 |
20160053702 | HEAT RELEASE RATE WAVEFORM GENERATING DEVICE AND COMBUSTION STATE DIAGNOSTIC SYSTEM FOR INTERNAL COMBUSTION ENGINE - In a diesel engine, an inside of a cylinder is divided into intra-cavity and extra-cavity regions. Ideal heat release rate waveform models, each formed of an isosceles triangle in which each oblique line gradient is a reaction rate, an area is a reaction amount and a base length is a reaction period with a reaction start temperature as a base point, are generated respectively for a vaporization reaction, low-temperature oxidation reaction, thermal decomposition reaction and high-temperature oxidation reaction of injected fuel for each region. An ideal heat release rate waveform of the reaction modes is generated by smoothing the ideal heat release rate waveform models through filtering and combining the ideal heat release rate waveforms, and is compared with an actual heat release rate waveform obtained from a detected in-cylinder pressure. A reaction mode having a deviation larger than or equal to a predetermined amount is diagnosed as being abnormal. | 02-25-2016 |
20160061135 | METHOD AND SYSTEM FOR PRE-IGNITION CONTROL - Methods and systems are provided for reducing late burn induced cylinder pre-ignition events. Forced entry of residuals from a late burning cylinder into a neighboring cylinder may be detected based on engine block vibrations sensed in a window during an open exhaust valve of the late burning cylinder. In response to the entry of residuals, a pre-ignition mitigating action, such as fuel enrichment or deactivation, is performed in the neighboring cylinder. | 03-03-2016 |
20160061139 | FUEL INJECTION CONTROL DEVICE AND FUEL INJECTION SYSTEM - A fuel injection control device is adapted for a fuel injection system including an injector and a high-pressure pump that raises pressure of fuel and supplies the fuel to the injector. The fuel injection control device includes a selecting unit for selecting by which one of full lift injection and partial injection to inject fuel, and a pump control unit for controlling operation of the high-pressure pump such that a pressure of fuel supplied to the injector coincides with a target pressure. The selecting unit selects the partial injection when a required injection quantity of fuel is equal to or smaller than a partial maximum injection quantity. A fuel injection system includes the fuel injection control device, the injector, and the high-pressure pump. | 03-03-2016 |
20160084150 | ENGINE CONTROL DEVICE - An engine control device ( | 03-24-2016 |
20160090927 | ENGINE CONTROL DEVICE - An engine control device ( | 03-31-2016 |
20160090937 | ENGINE ASSEMBLY INCLUDING A THERMAL BARRIER - An engine assembly includes a cylinder block having at least one cylinder. The engine assembly includes at least one cylinder head coupled to the cylinder block, and at least one intake port coupled to the cylinder head, at least one exhaust port coupled to the cylinder head, and at least one fuel injector coupled to the cylinder head. The engine assembly includes a head cooling extension protruding from the cylinder head. The head cooling extension includes at least one extension wall and defines an extension cooling passageway at least partially enclosed by the at least one extension wall. The extension cooling passageway is at least partly disposed between the exhaust port and the fuel injector in order to create a thermal barrier between the fuel injector and the exhaust port when the coolant flows through the extension cooling passageway. | 03-31-2016 |
20160097334 | METHOD AND SYSTEM FOR ENGINE AIR CONTROL - Methods and systems are provided for reducing idling torque imbalances between cylinders by actuating a common camshaft to which the cylinders are coupled. The camshaft may be adjusted within camshaft limits during each combustion event of each cylinder. In this way, idling NVH issues may be addressed. | 04-07-2016 |
20160097360 | DUCTED FUEL INJECTION - Various technologies presented herein relate to enhancing mixing inside a combustion chamber to form one or more locally premixed mixtures comprising fuel and charge-gas with low peak fuel to charge-gas ratios to enable minimal, or no, generation of soot and other undesired emissions during ignition and subsequent combustion of the locally premixed mixtures. To enable sufficient mixing of the fuel and charge-gas, a jet of fuel can be directed to pass through a bore of a duct causing charge-gas to be drawn into the bore creating turbulence to mix the fuel and the drawn charge-gas. The duct can be located proximate to an opening in a tip of a fuel injector. The duct can comprise of one or more holes along its length to enable charge-gas to be drawn into the bore, and further, the duct can cool the fuel and/or charge-gas prior to combustion. | 04-07-2016 |
20160102779 | METHOD FOR PREDEFINING A CURRENT IN A SOLENOID VALVE - A method for predefining a current through a solenoid coil of a solenoid valve, a closing point in time of the solenoid valve being detected with the aid of a sensor, a sensor value being monitored, and, when a premature closing of the solenoid valve is identified based on the monitored sensor value, the current through the solenoid coil of the solenoid valve is increased. | 04-14-2016 |
20160108765 | CAM CARRIER MODULE FOR VEHICLES - A cam carrier module for vehicles may include a cam carrier coupled with a cylinder head, an injector penetrating through the cam carrier and the cylinder head, and a sealing device provided between the cam carrier and the cylinder head and enclosing the injector to implement sealing of the injector. | 04-21-2016 |
20160108794 | REDUCING TURBOCHARGED ENGINE OVERHEATING - A method comprising in response to coolant loss in a turbocharged engine, deactivating one or more engine cylinders while limiting engine load of one or more active cylinders based on an engine speed, and a cylinder head temperature. | 04-21-2016 |
20160108826 | ASYMMETRY CDA ENGINE - An asymmetry cylinder de-activation (CDA) engine provided with a first, a second, a third and a fourth cylinder of which CDA apparatuses are mounted thereto respectively may include a crankshaft connected with pistons of each cylinder through a first, a second, a third and a fourth cranking journal respectively, and a controller configured to control operations of the CDA apparatuses, in which phase differences between cranking journals according to firing order may include 90±10 degrees and 270±10 degrees. | 04-21-2016 |
20160108857 | APPARATUS AND METHOD OF IMPROVING VOLUMETRIC EFFICIENCY IN AN INTERNAL COMBUSTION ENGINE - Volumetric efficiency is reduced in a premixed gaseous fuel engine compared to a premixed liquid fuel engine. An improved method for operating an internal combustion engine and improving volumetric efficiency comprises storing a gaseous fuel in a liquid state; determining a load on the internal combustion engine as a function of engine operating conditions; determining a target temperature for the gaseous fuel that reduces the likelihood of pre-ignition and knock as a function of the load; and controlling the amount of heat transferred to the gaseous fuel to convert it to one of a gas state and a supercritical state, such that the gaseous fuel is introduced into the internal combustion engine at the target temperature. | 04-21-2016 |
20160115925 | Fuel Injector - A fuel injector for injecting fuel vapor into a combustion chamber of an internal combustion engine is disclosed. The fuel injector may be configured to reduce production of particulate matter during combustion of fuel. The fuel injector may have a spray nozzle having a tip and a plurality of spray discharge orifices formed on the tip. The plurality of spray discharge orifices being configured to discharge fuel vapor at a flow rate of 750-795 cc/min. | 04-28-2016 |
20160131060 | CATALYST HEATING WITH EXHAUST BACK-PRESSURE - Embodiments for controlling an exhaust back-pressure valve are provided. In one example, a method for operating an engine comprises closing an exhaust back-pressure valve in response to a component temperature, adjusting intake and/or exhaust valve operation in response to closing the exhaust back-pressure valve to reduce cylinder internal exhaust gas recirculation (EGR), and while the exhaust back-pressure valve is closing, indicating degradation of an exhaust back-pressure system if a designated engine operating parameter remains constant. In this way, degradation of the exhaust back-pressure system may be diagnosed while maintaining combustion stability. | 05-12-2016 |
20160138441 | INTERNAL COMBUSTION ENGINE - There is provided an internal combustion engine, provided with a crankshaft and one or several cylinders provided on the wall thereof with exhaust ports and closed at the top by a cylinder head provided with intake ports; each cylinder accommodating an engine piston connected to the crankshaft and a coaxial auxiliary piston opposite the engine piston, defining an intake chamber and a combustion chamber; said auxiliary piston axially determining on the side of the combustion chamber a housing that communicates with the intake chamber via transfer ports, the housing of which includes a secondary piston which opens and closes the transfer ports in a back-and-forth movement between a rear position and a forward position. | 05-19-2016 |
20160138461 | COMPRESSION IGNITION INTERNAL COMBUSTION ENGINE - A compression ignition internal combustion engine includes: a cylinder block and a cylinder head; a piston including a cavity that defines a combustion chamber in cooperation with the cylinder block and the cylinder head; and a nozzle for injecting fuel into the combustion chamber. | 05-19-2016 |
20160146169 | Method For Producing Injectors, In Particular Fuel Injectors - A method is provided for pairing at least two injectors, e.g., two fuel injectors for a direct injection system of an internal combustion engine, wherein a criterion for the pairing of the at least two injectors is a total leakage and/or a pressure difference at a transfer pin of the respective injector. A method for producing an injector, e.g., a fuel injector for a direct injection system of an internal combustion engine, is also provided, wherein at least two instances of mechanical backlash, e.g., instances of pairing backlash, that are relevant to injection amounts, leakage amounts, and/or pressure differences of the injector are paired with each other. | 05-26-2016 |
20160146175 | METHOD FOR STARTING AN INTERNAL COMBUSTION ENGINE, DEVICE AND COMPUTER PROGRAM PRODUCT - The invention relates to a method for starting an internal combustion engine for a motor vehicle, said internal combustion engine having at least two cylinders, a valve drive with at least one inlet valve and at least one outlet valve for each of the cylinders, wherein at least the closing times of the inlet valves can be variably adjusted, and a direct injection system, in particular a gasoline direct injection system, the starting process being initiated by a direct injection and ignition in one of the cylinders. During a starting process, the closing time of at least one inlet valve differs from at least one of the other cylinders dependent on at least one current state value. | 05-26-2016 |
20160153354 | REDUCED DIESEL FUEL CONSUMPTION USING MONATOMIC OXYGEN | 06-02-2016 |
20160160790 | DIRECT INJECTION PUMP CONTROL - Methods are provided for controlling a solenoid spill valve of a direct injection fuel pump, wherein the solenoid spill valve is energized and de-energized according to certain conditions. An example control strategy is provided for operating the direct injection fuel pump when fuel vapor is detected at an inlet of the direct injection fuel pump. To ensure pump effectiveness during the presence of fuel vapor, the solenoid spill valve may be maintained energized for a minimum angular duration past a top-dead-center position of a piston in the direct injection fuel pump. | 06-09-2016 |
20160160822 | VIBRATION INSULATING STRUCTURE OF FUEL INJECTION VALVE IN INTERNAL COMBUSTION ENGINE - In a vibration insulating structure of a fuel injection valve in an internal combustion engine, a vibration insulating device installed between an annular step portion of a valve installation hole provided in a cylinder head and an outer peripheral step portion of the valve fitted in the hole is formed from a ring laminated body including an upper ring engaged with the outer peripheral step portion, and at least two vibration insulating rings clamped between the upper ring and the annular step portion and superposed on each other. Multiple dents and projections each having a fine and uneven shape are formed on at least an abutment surface of each of the vibration insulating rings which abuts against an opposed one of the vibration insulating rings. Accordingly, such device can be easily obtained from a simple structure and inhibit vibration of the valve effectively, reducing vibration noise and manufacturing cost. | 06-09-2016 |
20160169086 | COMBUSTION CHAMBER WITH DUCTS FOR INTERNAL COMBUSTION ENGINES | 06-16-2016 |
20160169146 | DIRECT INJECTION FUEL SYSTEM WITH CONTROLLED ACCUMULATOR ENERGY STORAGE AND DELIVERY | 06-16-2016 |
20160177858 | METHODS AND SYSTEMS FOR AN OXYGEN SENSOR | 06-23-2016 |
20160177860 | METHOD FOR DIRECT INJECTION OF SUPERCRITICAL FUELS | 06-23-2016 |
20160177861 | FUEL DELIVERY SYSTEM AND METHOD FOR OPERATION OF A FUEL DELIVERY SYSTEM | 06-23-2016 |
20170234282 | Self-Locking Internal Damper and Fuel Rail Assembly | 08-17-2017 |
20180023517 | FUEL INJECTOR ASSEMBLY | 01-25-2018 |
20180023531 | SPARK PLUG FOULING DETECTION FOR IGNITION SYSTEM | 01-25-2018 |
20190145337 | CONTROL DEVICE FOR COMPRESSION-IGNITION ENGINE | 05-16-2019 |