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WO/2000/071881A1 |
A reciprocating internal combustion engine is described wherein each cylinder has an exhaust valve (104) and two intake valves (112), (122) connected to separate intake ports (111), (121). A variable valve timing system allows the overla...
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WO/2000/065209A1 |
A stratified scavenging two-stroke cycle engine which is increased in leading air sucking efficiency, simple in construction, and low in cost, comprising an exhaust port (22) and a scavenging port (21) connected to a cylinder chamber (10...
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WO/2000/055481A1 |
The invention relates to a direct injection internal combustion engine comprising a combustion chamber (4) which is delimited in each cylinder (2) by a longitudinally displaced piston (3) and by the inner wall (15) of a cylinder head (5)...
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WO/2000/055480A1 |
In internal combustion engines with direct fuel injection which comprise a combustion chamber (4) that is delimited in each cylinder (2) by a lengthwise piston (3) and the inner wall (15) of a cylinder head (5), the fuel is injected into...
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WO/2000/053912A1 |
Engine control apparatus and methods for avoiding heavy soot production yet providing smooth engine acceleration and deceleration without significant engine RPM increases and decreases with small throttle movements are described. In one ...
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WO/2000/053906A1 |
In internal combustion engines with direct injection the fuel is injected into the combustion chamber (4) by an injector to produce an ignitable fuel/air mixture with separately supplied combustion air, the mixture being ignited by an ig...
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WO/2000/037782A1 |
The invention provides a method for burning off the spark plugs of an internal combustion engine in which injection is carried out in the stratified charge mode. The inventive method is characterized in that during a phase in which the c...
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WO/2000/029731A1 |
A spark ignition internal combustion engine is described having a fuel supply system for separating the fuel into two or more continuous streams of fuel fractions having different octane ratings. The engine has an intake system that crea...
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WO/2000/025010A1 |
A device and method for control of an engine having a fuel injection valve (40) directly injecting fuel into a combustion chamber (16), wherein a fuel feed device includes a feed pump (46) and a booster pump (47), the booster pump (47) f...
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WO/2000/012881A1 |
A reciprocating machine includes a housing (12) and piston means (20) that are cyclically relatively displaceable along an axis (11) to define a variable volume working chamber (50). There is further provided air inlet means and fuel inl...
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WO/2000/008328A1 |
To reduce the amounts of HC, NOx and other emissions from a direct injection engine when a catalyst is still in its unheated state, and to promote catalyst quick light-off operation by increasing the temperature of exhaust gases. The fue...
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WO/2000/008329A1 |
A catalyst light-off device for a direct injection engine comprises a temperature state identifier (31) for judging the temperature state of a catalyst (22) for converting exhaust gases, a fuel injection controller (33) for controlling f...
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WO/2000/000727A1 |
Disclosed is an internal combustion engine, especially an internal combustion engine in a motor vehicle, comprising an injection valve (9) which is used for direct injection of fuel for combustion into a combustion chamber (4) during an ...
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WO/1999/067514A1 |
A cylinder-injection type internal combustion engine capable of performing a stratified operation in running at a speed of 120 km/h and/or at an engine speed of 3200 rpm so as to improve a fuel efficiency and/or clear off an emission con...
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WO/1999/053179A1 |
The invention concerns an internal combustion engine with controlled ignition and direct injection, characterised in that at least one of the intake ducts (24) comprises means for generating in the cylinder (10), at least for certain eng...
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WO/1999/049199A1 |
The invention relates to an internal combustion engine (1), especially for a motor vehicle. The international combustion engine (1) has an injection valve (8) by means of which fuel can be injected directly into a combustion chamber (4) ...
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WO/1999/046491A1 |
The invention relates to a method for operating a spark-ignition engine with direct injection, according to which the engine is operated either by charge stratification or homogeneously. According to the invention the intake and discharg...
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WO/1999/028621A1 |
A method of fuelling an internal combustion engine by injection of a fuel-gas mixture to a combustion chamber (32) of the engine comprises delivering a metered quantity of fuel from a fuel metering means to a delivery injector (34), the ...
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WO/1999/020882A1 |
The invention relates to an internal combustion engine (1), especially for a vehicle, provided with an injection valve (8) intended to inject fuel directly into a combustion chamber (4) delimited by a piston (2), either in a first operat...
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WO/1999/019612A1 |
A spark ignition gasoline internal combustion engine is described having means for separating the gasoline fuel into a higher boiling point fraction and a lower boiling point fraction, means for separately supplying the fractions to the ...
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WO/1999/018338A1 |
A stratified scavenging two-cycle engine capable of meeting the regulation for an emission rate of THC in exhaust gases with a simple construction, comprising a cylinder (4) receiving a piston (1) vertically slidably and having an exhaus...
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WO/1999/006683A1 |
The invention relates to a gasoline internal combustion spark ignition engine having a fuel fractioning system that separates the gasoline fuel by boiling point into at least two, preferably three, fractions. The different fuel fractions...
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WO/1998/053189A1 |
A two or four stroke valve engine comprises at least one cylinder (3) within which a piston (4) moves and which receives an air-fuel mixture via at least one induction or intake duct (16), there being provided for the combustion products...
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WO/1998/044245A1 |
By raising the exhaust gas temperature, the sulfur components (SO�x?) sticking to an NO�x? catalyst are removed and the durability of the NO�x? catalyst is improved. An exhaust gas purifying device of a cylinder injection internal ...
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WO/1998/042970A1 |
Disclosed is a method for reducing harmful exhaust gas emissions of a direct fuel-injection spark-ignition engine operating with a low fuel/air mixture. The engine is operated with a partial load in stratified charge mode with a $g(l) va...
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WO/1998/026175A1 |
An intake system for an internal combustion engine (10) is described having a plurality of cylinders, at least one intake valve (12) per cylinder and an intake port (14) leading to the intake valve (12). The intake system comprises an in...
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WO/1998/025015A2 |
The internal combustion engine can be selectably driven either with a homogenous mixture or a stratified charge. The use of one of these operational modes is determined by the load and torque as well as by the temperature of the coolant ...
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WO/1998/022701A1 |
An intake system for a multi-cylinder internal combustion engine in which each cylinder has at least one intake valve (10) and first and second parallel intake passages supplying separate streams through the intake valve to the combustio...
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WO/1998/020240A1 |
Process for ensuring the mixing of a predetermined quantity of liquid or gaseous fuel with the air that is contained in a pre-chamber (1) with one end that is open toward cylinders (6) of an alternative internal-combustion engine, as wel...
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WO/1998/019058A1 |
The invention relates to a method of operating an internal combustion engine, or an internal combustion engine. According to the inventive method of operation, fuel is injected into a combustion chamber in such a way that it is reflected...
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WO/1998/017901A1 |
A stratified scavenging two-cycle engine, which is more compact in construction. The stratified scavenging two-cycle engine comprises a scavenging flow passage (3) for connection between a cylinder chamber (4a) and a crank chamber (1a), ...
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WO/1998/017903A1 |
A stratified scavenging two-cycle engine, in which exhaust gas can be made cleaner. The stratified scavenging two-cycle engine comprises a scavenging flow passage (3) for connection between a cylinder chamber (4a) and a crank chamber (1a...
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WO/1998/012426A1 |
An internal combustion engine, especially for vehicles, with direct fuel injection and applied ignition, presenting at least one closed combustion chamber (10) located between the cylinder head and a piston which can be moved into a cyli...
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WO/1998/009062A1 |
A controller of an in-cylinder spark ignition internal combustion engine switches a control mode in accordance with the engine operating condition between a compression stroke injection mode control under which the fuel is injected durin...
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WO/1998/009060A1 |
A liquid gas engine has at least one combustion chamber (4) into which a liquid gas/air mixture is introduced and ignited. The liquid gas motor has an injection device (1) which injects liquid gas through an injection nozzle (2). Accordi...
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WO/1998/005856A1 |
A control device for cylinder injection type spark-ignition internal combustion engines which includes a fuel injection valve (4) for injecting a fuel directly into a combustion chamber (5) such that when an internal combustion engine (1...
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WO/1998/004817A1 |
A lean burn internal combustion engine is described having at least one cylinder. An intake port (24) supplies an intake charge to the combustion chamber (10) of the cylinder and the exhaust gases are discharged through an exhaust port (...
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WO/1998/001655A2 |
The object of the invention is to provide a mixture-compressing two-stroke spark ignition engine in which fuel is injected into the cylinder chamber, wherein a homogeneous mixture is allowed to form in particular. To that end, the combus...
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WO/1998/001668A1 |
This system for directly injecting fuel into a cylinder combustion chamber of an internal combustion engine comprises at least a fuel injector (3) and means (4) for priming the fuel in the chamber (1). The system is characterised in that...
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WO/1998/001655A1 |
The object of the invention is to provide a mixture-compressing two-stroke spark ignition engine in which fuel is injected into the cylinder chamber, wherein a homogeneous mixture is allowed to form in particular. To that end, the combus...
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WO/1997/048891A1 |
A method of operating a two-stroke, spark-ignited internal combustion engine equipped with an ECU (66), an Input/Logic Multiplexer (70), a DC - DC converter (74), an Ignition Trigger (78) and an Ignition Distribution System (86) wherein ...
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WO/1997/039451A1 |
A multimedium optical disk wherein whether image titles need emulation AV functions can be instantly judged even when the image titles recorded thereon have individual modes. The reproduction type information including a first flag showi...
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WO/1997/020133A1 |
A stratified charge internal combustion engine comprises at least one cylinder having at least one intake valve (14) per cylinder, and two manifolds (24, 34) having branches (22, 32) supplying first and second gas streams to at least one...
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WO/1997/013967A1 |
An internal combustion engine is described comprising a cylinder having an intake port (14), and two manifolds (24, 34) having branches (22, 32) that are configured to supply two gas streams to the intake port (14) of each cylinder. The ...
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WO/1996/037693A1 |
A method is described for varying the engine load while maintaining optimum charge stratification in a stratified charge engine. In the invention, at least under low and part load conditions, the intake streams (22, 32) supplying the str...
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WO/1996/036808A1 |
A four-cycle cylinder injection type internal-combustion engine for injecting fuel directly into a combustion chamber and more particularly to a cylinder injection type internal-combustion engine preferably used in an internal combustion...
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WO/1996/034195A1 |
A fuel injection device works based on the principle of storage of energy in a solid body and is designed as a reciprocating piston pump with a delivery piston (35, 24) that is moved from its initial position towards a compression chambe...
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WO/1996/030633A1 |
A cylinder injection type internal combustion engine in which a lower side of a cylinder head (8) forming an upper side of a combustion chamber (3) is formed into a pent-roof shape comprising an intake valve side inclined lower side (8a)...
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WO/1996/030632A1 |
A cylinder injection type internal combustion engine wherein a recessed portion (22A) is formed in an upper surface of a piston (22) so as to produce and develop a vertical vortex current in which intake gas that is introduced into a com...
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WO/1996/029512A1 |
A multi-cylinder internal combustion engine is described that has at least three intake port channels (112, 113 and 122) per cylinder. Gases of different composition are introduced through the individual channels into the combustion cham...
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