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WO/2003/067066A1 |
In a pair of preceding and following cylinders whose exhaust and intake strokes overlap each other, intake air supplied to the preceding cylinder (2A, 2D) is supercharged by a turbocharger (23) to produce combustion at a 'lean' air-fuel ...
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WO/2003/064837A1 |
The invention is intended to provide improved emission-cleaning performance by use of a three-way catalyst alone, without the need for a lean NOx catalyst, while ensuring a fuel economy improvement effect of lean burn operation. A multic...
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WO/2003/064838A1 |
For the purpose of improving the fuel efficiency by lean combustion and enhancing the fuel efficiency improvement effects by performing compression ignition efficiently in some cylinders, a multi-cylinder spark ignition engine is constru...
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WO/2003/062624A1 |
A fuel passageway (28) to which gas fuel is fed is formed in an intake passageway wall. A fuel spout at the downstream end of the fuel passageway (28) is opened to the vicinity of the upstream-side of an intake valve (15) in the intake p...
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WO/2003/062614A1 |
An engine has a tumble flow producing means (air inlet port (13)) for producing a tumble flow (T) consisting of mixed gas in a cylinder. It has a squish flow producing means (the slope surface (25) of a piston top (7a), a recess (26), an...
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WO/2003/048540A1 |
The invention relates to a combustion method with charge stratification for a direct injection, spark ignition internal combustion engine. According to said method with stratified charge, charge air is introduced, through one of two flow...
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WO/2003/031786A1 |
A low emission vehicle operates an internal combustion engine with lean air fuel ratios over at least a portion of its operating load range. The vehicle satisfies EURO IV emission requirements with just a three way catalyst and without a...
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WO/2003/014559A1 |
The aim of the invention is to optimize the fuel distribution within the combustion air and to avoid the formation of liquid fuel nuclei. Direct fuel injection using two or more injector nozzles per combustion chamber is used in heat eng...
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WO/2002/095201A1 |
The invention relates to a fuel injection system for internal combustion engines, comprising at least one fuel injection valve (25) which injects fuel into a fuel chamber (19) defined by a cylinder wall (17) in which a piston (16) is dis...
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WO/2002/079622A1 |
The invention relates to a method of operating an internal combustion engine (1), especially a motor vehicle. In order to allow for a safe and reliable self-ignition of the fuel-air mixture present in a combustion chamber (4) of the inte...
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WO/2002/077429A1 |
A gasoline in a material fuel tank (3) is separated into a high-RON fuel having a higher octane value than the material fuel and a low-RON fuel having a lower octane value than the material fuel, by a separator device (10) equipped with ...
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WO/2002/075137A1 |
The invention relates to a method for at least temporarily increasing an exhaust gas temperature of a spark-ignition, direction injection internal combustion engine (10) involving at least one measure, which is executed by the engine, wh...
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WO/2002/066811A1 |
The invention relates to a method for operating a spark ignition engine, especially a direct injection engine, which is capable of running lean and of stratified charging and which has an NO¿x? storage-type catalytic converter mounted d...
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WO2001002707A9 |
An improved ignition-combustion system for internal combustion engines comprising a compact combustion chamber zone (4) mainly in the engine cylinder head (6) mainly under the exhaust valve (8) and with large air-squish zones (124a, 124b...
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WO/2002/055857A1 |
The invention relates to a method for heating up a catalyst in combustion engines with direct fuel injection comprising, the following steps: increasing the air change by simultaneously shifting the ignition to post-ignition, testing whe...
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WO/2002/055848A1 |
A piston for an internal combustion engine, including a piston crown having a central axis, and a piston bowl disposed in the piston crown, on which two tumble flows of air are provided. The piston bowl has a generally V-shaped contour i...
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WO/2002/055849A1 |
A direct fuel injection engine includes a fuel injector (21) so positioned and oriented as to produce a fuel spray whose upper segment reaches the vicinity of a spark plug (7) by a penetrating force of the fuel spray in a low engine spee...
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WO/2002/053898A1 |
An internal combustion engine (10) comprises at least one combustion chamber (12). The engine is operated whereby, during a working cycle, fuel is at least intermittently injected directly into the combustion chamber (12) by means of at ...
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WO/2002/036946A1 |
A control unit is provided for an internal combustion engine including an engine block comprising a plurality of cylinders operable in a homogenous combustion mode and a stratified combustion mode in response to an engine throttle positi...
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WO/2002/029222A1 |
An internal combustion engine (10) is operated by a method, according to which petrol is directly injected into a combustion chamber (12). The injection takes place at least temporarily in such a way that in association with a correspond...
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WO/2002/025088A1 |
The invention relates to a method for operating an internal combustion engine (1, 18) comprising several combustion chambers (4), wherein the combustion chambers (4) are filled with fuel and air or a fuel-air mixture. In order to avoid t...
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WO/2002/020957A1 |
A cylinder injection type spark ignition engine enabling a stratified combustion with high robustness without relying upon tumbling generated in a combustion chamber, comprising a fuel injection nozzle (9) directly injecting fuel into th...
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WO/2002/018769A1 |
The invention relates to a method for controlling a fuel direct injection of a spark-ignited internal combustion engine that, at least occasionally, is operated in a homogeneous mode. Inside a cylinder, at least one piston is displaced u...
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WO/2002/001054A2 |
A four-stroke reciprocating internal combustion engine (10) includes at least one combustion chamber (19) defined by a cylinder (11), a piston (16) and a cylinder head (17). Each combustion chamber (19) is in fluid communication with at ...
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WO/2001/094764A1 |
A method of controlling fuel injection into a cylinder (12) of an internal combustion engine (10). A combined flow redirector and holding bowl recess (32) extends into a top side of the piston head (30). A fuel injection port (22) is pro...
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WO/2001/094770A1 |
A four stroke, reciprocating, stratified internal combustion engine (10) includes at least one combustion chamber (19) defined by a cylinder (11), a piston (16) and a cylinder head (17). Each combustion chamber (19) is in fluid communica...
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WO/2001/090544A1 |
A fuel injection system (1) for internal combustion engines comprises a fuel injection valve (7), which injects fuel into a combustion chamber (6), defined by a cylinder wall (2), in which a piston (3) runs and a spark plug, extending in...
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WO/2001/090543A1 |
The invention relates to a fuel injection system (1) for internal combustion engines (1'), comprising a fuel injection valve (4), for injection of fuel into a combustion chamber (7), which is defined by a cylinder wall (14), in which a p...
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WO/2001/086126A2 |
A multi-mode internal combustion engine (10) and method of operating the engine (10) is provided which is capable of operating in a variety of modes based on engine operating conditions to enhance fuel efficiency and reduce emissions. Th...
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WO/2001/086127A2 |
A method and internal combustion engine (10) operable in a premixed charge compression ignition mode, comprising a combustion chamber (16), an intake system (18) for delivering air intake, a mixing device that mixes a first fuel (23) wit...
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WO/2001/086128A2 |
An internal combustion engine (10) operable in a premixed charge compression ignition mode and a method for operating the engine (10), the engine (10) including an engine body (12) with a piston assembly (14), a combustion chamber (16) f...
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WO/2001/086125A2 |
A novel and improved engine and method are provided which includes a premixed charge compression ignition engine (10) capable of operating over a wide load range without the need to vary the IMT beyond easily achievable or desirable temp...
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WO/2001/079681A1 |
The invention relates to a spark ignited piston internal combustion engine comprising at least one exhaust gas outlet (5, 6) per cylinder, and each cylinder (1) is provided with at least one gas inlet valve (2, 3) that closes a gas inlet...
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WO/2001/073277A1 |
During stratified-charge combustion operation of a direct-injection spark ignition engine (1), at the compression stroke of a cylinder (2), a tumble T is generated which flows between a spark plug (16) electrode and a piston (5) crown su...
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WO/2001/066938A1 |
An internal combustion engine, wherein fuel injection nozzles (6) and spark ignition plugs (7) are disposed in combustion chambers (5), self-ignitable premixed air-fuel mixture is formed in the combustion chambers in the stratified form ...
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WO/2001/065105A1 |
An internal combustion engine comprising at least one combustion chamber (20) with a delivery injector (25) for injecting fuel directly into said combustion chamber, said engine further comprising at least one valved inlet air duct (46) ...
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WO/2001/055567A1 |
A direct injection type internal combustion engine capable of controlling the status of combustion by stratifying an intake in a combustion chamber, reducing harmful substances contained in exhaust gases, and injecting fuel into the comb...
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WO/2001/055510A1 |
The invention relates to a motor-driven operating device that comprises a guide handle (1). Two sensor elements are provided on the guide handle and in two handle areas (2, 3) for detecting the hands of an operator. An ignition device (7...
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WO/2001/051791A1 |
The invention relates to an internal combustion engine (1), especially an internal combustion engine of an automobile. Said internal combustion engine (1) is provided with a combustion chamber (4) into which fuel is injected in a first o...
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WO/2001/044634A1 |
A piston valve type layered scavenging 2-cycle engine which is reduced in engine height, lightweight and compact and capable of reliably achieving exhaust emission control. To this end, the upper edge (14a) of a pilot air port (14) forme...
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WO/2001/033059A1 |
An internal combustion engine (1), in particular for a vehicle, is disclosed, which comprises a combustion chamber (4), into which fuel may be injected during a compression phase in one operating variant, or during an inlet phase in anot...
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WO/2001/033055A1 |
A method and a system are described for operating a four-stroke reciprocating internal combustion engine, the system having exhaust and intake valve timings such that the exhaust valve is closed at or after 30° after tdc, and the intake...
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WO2001009501A9 |
The invention relates to an internal combustion engine (1), especially for use in a motor vehicle, provided with a combustion chamber (4) in which air can be drawn via a throttle valve (11). Fuel can be directly injected into the combust...
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WO/2001/027459A1 |
A gasoline direct injection engine is provided with a bypass air supply line. The bypass line is selectively opened to allow additional flow of air into the engine chamber during a transition phase. Air normally flows through a main air ...
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WO/2001/025619A1 |
The invention relates to a method for dosing fuel with a fuel injection valve (1), in particular an injection valve for a fuel injection unit of an internal combustion engine. Said fuel injection valve has an actuator (14) and a valve cl...
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WO/2001/025605A1 |
The invention relates to a direct injection internal combustion engine, especially an Otto engine, with layered lean operation and internal exhaust-gas recirculation. According to the invention, an exhaust-gas aftertreatment for reducing...
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WO/2000/077360A1 |
A cylinder injection engine, comprising an ignition plug disposed at the upper part of a combustion chamber, a fuel injection nozzle disposed at the side part of the combustion chamber, and an intake air control means disposed in an inta...
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WO/2000/077359A1 |
A cylinder injection engine, in which fuel is injected directly into a combustion chamber, capable of suppressing the exhaustion of harmful component gas such as HC and increasing fuel efficiency by enabling a stratified combustion in an...
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WO/2000/077361A1 |
A cylinder injection type internal combustion engine, wherein a tumble air flow in a combustion chamber suitable for the transportation of fuel is produced by optimizing a recessed part shape formed in a piston so as to prevent fuel from...
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WO/2000/077375A1 |
The invention relates to an internal combustion engine (1), in particular for a motor vehicle. Said internal combustion engine is provided with a combustion chamber (4), in which fuel can be injected directly by an injection valve (9) an...
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