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Patent Searching and Data


Matches 801 - 850 out of 10,866

Document Document Title
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/2001/023717A1
The invention relates to method of controlling the fuel injection in an internal combustion engine (1) comprising a piston (3), which passes to and for in a cylinder (2) between an upper and a lower dead centre, and an injection nozzle (...  
WO/2001/023718A1
Invention which, by means of spray-controlled, directly injected combustion with the aid of step-by-step technical development of the whole of the combustion system, achieves an intensified mixing process during injection and after-burni...  
WO/2001/018374A1
A method of treating NOx emissions in the exhaust gas of an internal combustion engine having catalyst means including at least a first catalyst converter capable of treating NOx, the method including operating the engine in a first mode...  
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/2001/012871A1
A metal matrix composite (4) constitutes a part of a piston (1). The metal matrix composite (4) is comprised of a matrix comprising a light metal alloy and, incorporated therein, a reinforcing material comprising a metal fiber, wherein t...  
WO/2001/012966A1
A combustion chamber (100) of a direct injection diesel engine capable of sufficiently mixing fuel (2) injected from a fuel injection nozzle (1) with air to produce approximately uniform mixture so that approximately a uniform combustion...  
WO/2001/011212A1
A direct fuel injection internal combustion engine (30) rated to have an overall engine displacement that remains unchanged or higher notwithstanding that the engine may have a fewer number of cylinders than would be generally required t...  
WO/2001/002719A1
The invention relates to a fuel-injection valve (5), in particular, a fuel-injection valve which projects directly into the combustion chamber of an internal combustion engine, comprising a fuel inlet (7), an excitable actuating element ...  
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...  
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/2000/077357A1
A piston (17) for an internal combustion engine. The piston (17) has a piston head (43) and a recess (46) formed in the piston head. A formation (91) is associated with the recess (46) for generating a turbulent motion in a fluid introdu...  
WO/2000/073650A1
An electrode arrangement and a method of igniting a fuel-air mixture in the compression chamber (20) in a cylinder (4) of an internal combustion engine, particularly an Otto cycle engine where in addition to being delimited by the cylind...  
WO/2000/071886A1
The invention relates to a method for injecting fuel into the combustion chamber of an internal combustion engine, especially for injecting diesel oil, via an injection nozzle. According to said method, a plurality of rows of punched hol...  
WO/2000/068554A1
An exhaust emission control device of an internal combustion engine, wherein an exhaust emission control valve (24) disposed in an exhaust pipe (22) of the internal combustion engine is approximately fully closed at the time of start and...  
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)...  
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...  
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 ...  
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...  
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/2000/047889A1
A fuel injector (10) for direct injection into a combustion chamber (31) comprising a poppet valve (11) biased toward a closed position to seal off the outlet of the injector (10) from the combustion chamber (31). Fuel is fed from the in...  
WO/2000/034633A1
The invention relates to a direct injection internal combustion engine which comprises, per cylinder, at least two adjacently arranged intake valves (1), at least one exhaust valve (2), an essentially coaxial ignition device (3), an inje...  
WO/2000/031390A1
The present invention relates to an unthrottled internal combustion engine of segregating, spark ignited, form, i.e. in which the bulk of the fuel does not begin to mix with the bulk of the air until near the end of the compression strok...  
WO/2000/031399A1
A piston (20) for an internal combustion engine includes an upper crown (22) and a lower crown (24) that are each fabricated using a same strong material, such as steel and fastened together using a plurality of fasteners (50). The pisto...  
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/2000/028200A1
According to the inventive method, an internal combustion engine is operated in the stratified charge operation and a base value for the NOx crude emission is determined which depends on the amount of fuel (MFF) injected into the cylinde...  
WO/2000/028198A1
Four-stroke internal combustion engine with variable geometric compression ratio, electrically operated inlet valves and means for supplying a homogeneous fuel/air mixture to the engine cylinders. The inlet valves (9) and the compression...  
WO/2000/020735A1
A combustion system for direct injection diesel engines, having a fuel injection nozzle (N) provided with upper and lower rows of nozzle holes and disposed so as to be opposed to a deep dish combustion chamber (A) of a small opening rati...  
WO/2000/020747A1
The invention relates to a piston (1) comprising a cooling channel (12), a piston base body (2) made of forged steel. The inventive piston also comprises a box-type skirt (11), bosses and boss supports, connecting walls (9) between the b...  
WO/2000/019080A1
The invention relates to a piston for a piston internal combustion engine with spark ignition or self-ignition, whereby the cylinders thereof are provided with gas outlets and inlets with controllable gas exchange valves and the respecti...  
WO/2000/017505A1
The invention concerns an internal combustion engine comprising a combustion chamber (1) defined by a piston (3) top wall mounted in a cylinder block cylindrical bore (2) and a cylinder head (4) bottom wall (13), a recess (18) arranged i...  
WO/2000/015953A1
An engine modification particularly suitable for permitting an engine which initially ran on diesel fuel (diesel cycle) to run on gas (Otto cycle) which includes a plate (10) to be connected between the cylinder head (20) and the engine ...  
WO/2000/014396A1
An adiabatic internal combustion engine capable of increasing a thermal efficiency remarkably as compared with conventional internal combustion engines, capable of easily realizing a spark ignition adiabatic engine represented by gasolin...  
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/2000/012882A1
An internal combustion engine having fuel injection with a protrusion (60) placed between a fuel injection nozzle (41) and a spark plug (24) in the combustion chamber. The protrusion (60) shields the core nose (44) of the spark plug (24)...  
WO1999042718A9
A premixed-charge compression-ignition engine and control system (10) is provided which effectively initiates combustion by compression-ignition and maintains stable combustion while achieving extremely low oxides of nitrogen emissions, ...  
WO/2000/011334A1
An internal combustion engine having a compressed air assisted fuel injection system (20). The injection system has a compressed air accumulator (34) with a first aperture (30) into the cylinder of the engine and a second aperture (38) i...  
WO/2000/011331A1
A combustion chamber (10) for reciprocating internal combustion engines greatly reduces large quench areas in the combustion chamber (10), and substantially matches the combustion chamber periphery with the upper edge circumference of th...  
WO/2000/009881A1
An evaporated fuel processing device of an internal combustion engine, wherein fuel vapor sucked into a canister (22) is purged into a surge tank (13) through a purge control valve (28), a target value of a fuel vapor rate indicating a r...  
WO/2000/009872A1
The invention concerns a combustion chamber (5) delimited by a piston head (8) having, inside a planar peripheral ring (20), a recess (21) in the form of a concave bowl open towards the chamber (5) and off-centre on the piston (3) axis (...  
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...  
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...  
WO/2000/008318A1
The invention relates to a four-stroke internal combustion engine with applied ignition, wherein fuel is directly injected into a combustion chamber (28) by means of an injector (22). Said engine comprises at least one admission channel ...  
WO/2000/003134A1
An internal combustion engine, wherein a fuel injection valve (6) and an ignition plug (7) are disposed in a combustion chamber (5), fuel is injected from the fuel injection valve (6) at the end of a compression stroke, the amount of soo...  
WO/2000/000725A1
Highly efficient engine. The system includes an internal combustion engine having at least one piston in a cylinder, the cylinder including a cylinder head. The engine operates on an unsymmetrical expansion and compression cycle wherein ...  
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/1999/065286A2
The invention relates to a spark-ignition piston combustion engine, comprising an engine block in which each of the cylinders (4) forms a combustion chamber that is limited by a piston (6) and a cylinder head (7) mounted on the closing p...  

Matches 801 - 850 out of 10,866