Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 301 - 350 out of 6,769

Document Document Title
WO/2001/081745A1
The invention relates to a method for influencing the mixture formation and charging movement in the cylinders of a piston internal combustion engine with at least one gas inlet valve and at least one gas outlet valve per cylinder, respe...  
WO/2001/079675A1
The invention relates to a cylinder-charge control method. According to said method, residual gas in the cylinder is recycled internally and is intermittently shunted in front of the inlet valve(s), by controlling the closure times (AS) ...  
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...  
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...  
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) ...  
WO/2001/057376A1
The present invention relates to (with reference to Figure 8) an internal combustion engine comprising a combustion chamber (110); an inlet passage (20) for delivering air or a mixture of fuel and air to the combustion chamber (110); and...  
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...  
WO/2001/055569A1
The invention relates to a method for controlling charge adjustment devices that are disposed in the suction area of the intake ports of direct-injection internal combustion engines and of port-injecting internal combustion engines that ...  
WO/2001/049996A1
Internal combustion piston engine comprising at least two gas inlet channels (3), at least one gas outlet channel (4) and at least one ignition device (14) per cylinder (1) as well as a combustion chamber (1.1). The gas inlet channels fl...  
WO/2001/036796A1
The subject invention is an intake manifold with a swirl control valve assembly mounted to an internal combustion engine. The intake manifold assembly includes a plurality of air intake passages through which air flows to the combustion ...  
WO/2001/036795A1
The invention relates to a piston internal combustion engine whose cylinders (1) are each provided with at least one gas exhaust valve (6) and at least one gas intake valve (5), whereby the gas intake valve (5) is connected to a gas inta...  
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...  
WO/2001/020180A1
The aim of the invention is to improve a bearing device for rotatably receiving a control element (2) in lines which guide mediums and pertain to a combustion engine with bearing receptacles (10, 11), in such a way that the assembly ther...  
WO/2001/016469A1
The present invention seeks to provide, inter alia, further methods to generate swirl and reduce cross flow in spark ignition internal combustion engines having two inlet and two exhaust valves per cylinder head, without the use of addit...  
WO/2001/014701A1
The invention relates to a suction intake device which has a flange (1). Said flange can be attached to a flange (28) of a cylinder head (26). The suction pipes (2 to 5) which are provided have,, at least two inlet channels (7 to 12) per...  
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...  
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...  
WO/2000/077358A1
The invention relates to a piston-type internal combustion engine in which fuel is injected into the combustion chamber (2). Said combustion chamber is formed in the cylinder (1) and is delimited by a combustion chamber top (3) provided ...  
WO/2000/049279A1
The invention relates to an air intake system for an internal combustion engine, notably for a direct injection spark ignition engine. Said system comprises a cylinder head (14) delimiting at least one cylinder, a suction line (10) prese...  
WO/2000/042311A1
An exhaust gas recirculation system, whereby the recirculation flow is regulated by means of arresting flaps (22) that are arranged in individual suction pipes (20) and the drive mechanism thereof is coupled by means of a drive shaft (2)...  
WO/2000/031392A1
A reciprocating internal combustion engine with direct injection comprises, for each cylinder, a plurality of intake ducts (8a, 8b) each having an inlet portion (9, 13) parallel to the plane of the top of the cylinders and an outlet port...  
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...  
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...  
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...  
WO/2000/008321A1
Disclosed is a port system, especially an induction manifold, for an internal combustion engine, comprising opening and closing valves (13) for selective opening and closing thereof. The valves should be progressively adjustable in order...  
WO/2000/008320A1
Disclosed is a port system, especially an induction manifold, for an internal combustion engine, comprising opening and closing valves (13) for selective opening and closing thereof. The valves should be progressively adjustable in order...  
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 ...  
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...  
WO/1999/067515A1
The invention relates to a Diesel motor having different cylinders (1) comprising each a fuel injection device with an injector (21) discharging into the combustion chamber (2) of the cylinder (1). Each cylinder comprises at least one di...  
WO/1999/066180A1
An engine is disclosed having an intake port (20) containing a swirl control valve (22) for partially obstructing the intake air flow in order to improve mixture preparation. A non-return valve (24) is mounted in the intake port and orie...  
WO/1999/064733A1
An intake port shape of internal combustion engine which suppresses a part of intake flow which is likely to flow in a reverse swirl direction on collision with a valve stem and produces a strong swirl while suppressing a flow coefficien...  
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...  
WO/1999/045249A1
The invention relates to an internal combustion engine with direct fuel injection comprising at least two adjacent inlet valves (1) per cylinder, a number of outlet valves (2), an essentially coaxial spark plug (3), an injection valve (4...  
WO/1999/042712A1
An internal combustion engine has an inlet port side angle (B) which is greater than 60° and is preferably 101° ± 3°. The exhaust valve side angle (C) is preferably 93° ± 3°. The inlet valve seat (3) is located closer to the longi...  
WO/1999/039089A1
This invention is swirl generation intake system with individual air passage for each port in one cylinder. The core concept of this invention is that surge tank is consisted with two rooms (twin room surge tank). One room is connected t...  
WO/1999/030015A1
The invention relates to an internal combustion engine (1) which comprises at least one cylinder (3), at least two suction valves (4, 5) per cylinder (3), and individual suction channels (6, 7) of longer and shorter length for each cylin...  
WO/1999/030016A1
A combustion system for engines having at least one cylinder (10). The system may e.g. consist of an exhaust duct, an intake duct (20a), a cylinder chamber (30), a fuel injector for injecting fuel into the cylinder chamber (30), a piston...  
WO/1999/027241A1
The invention concerns a method for checking the effect of swirl ducts in multi-cylinder internal combustion engines, in particular direct injection engine, whereby turbulence indices are determined by means of a device measuring turbule...  
WO/1999/011916A1
An internal combustion engine is described in which each cylinder (10) has one or more intake flow paths (12, 14) passing through one or more intake valves and configured to create a swirling motion in the intake charge in the combustion...  
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...  
WO/1998/054454A1
A linkage device of a V-type internal combustion engine rotates a pair of drive shafts (5a, b) for changing openings of swirl control valves. The linkage device receives reciprocating motion from an actuator through a rod (7). A center l...  
WO/1998/045591A1
The invention relates to a multicylinder four-stroke internal combustion engine having a cylinder head (1) with an intake and an outlet port arrangement for two admission valves (15, 16, 17, 18) and two exhaust valves (26, 27) per cylind...  
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...  
WO/1998/034017A1
A device for influencing intake air flow in an internal combustion engine has a mechanical part (5) that can be inserted into the intake air flow and is rotatively mounted around a point of rotation (6). In one end position, the mechanic...  
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...  
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...  
WO/1997/033079A1
The invention relates to a combustion engine comprising a number of cylinder spaces. Two inlet ports (3, 4) to be opened and closed by means of inlet valves and one exhaust port (5) to be opened and closed by means of an exhaust valve ar...  
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...  
WO/1997/014879A1
A direct injection Diesel engine for motor-vehicles, with small displacement, is described, which comprises a number of cylinders in line each provided with two intake valves and two exhaust valves driven by two camshafts arranged in the...  
WO/1997/012132A1
An internal combustion engine is disclosed having a block (20) including a piston cylinder with a reciprocal piston (150) therein. A cylinder head (30) is secured to the block (20) and serves as a closure for the compression end of the c...  

Matches 301 - 350 out of 6,769