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Patent Searching and Data


Matches 701 - 750 out of 12,332

Document Document Title
WO/2000/001930A2
An internal combustion engine has multiple combustion chambers each having intake and exhaust valves for controlling intake and exhaust flows into and from the combustion chamber, an induction system (202) to the intake valves, an exhaus...  
WO/1999/067511A1
A catalyst (22) suitable for reducing NO¿x? in an exhaust gas by using ammonia in the presence of an excessive oxygen is disposed in an exhaust passage (18, 21). A urea solution is supplied via a flow rate control valve (33) into the ex...  
WO/1999/060260A1
An arrangement for exhaust gas feedback (1) in a turbocharged combustion engine with an exhaust manifold (2), while a transfer line (5, 5', 15) for EGR gases is arranged between the exhaust manifold and the inlet side of the engine and h...  
WO/1999/058826A1
A calorimetric sensor system requires a vehicle's internal combustion engine (10) to cyclically operate between first and second conditions to repeatedly produce a varying exhaust gas composition which is consistent from cycle to cycle. ...  
WO/1999/042709A1
A method of operating an internal combustion engine (21) employs a selectively gas permeable membrane unit (10) to provide either oxygen or nitrogen enriched air to reduced NOx emissions, lean burn limit, increase power, and reduced cold...  
WO/1999/040298A1
An on-board catalytic monitoring system (10) uses an intrusive technique to cause the vehicle's engine (12) to cycle between first and second operating conditions. The first and second operating conditions are chosen such that different ...  
WO/1999/040312A1
The invention relates to a system for a combustion engine (1) comprising at least two cylinders (2a-2f), an inlet (3) for the provision of air, an outlet (9, 10) for the emission of exhaust gases, an additional pipe (17) for the recircul...  
WO/1999/035390A1
A device for EGR recirculation in a multi-cylinder turbocharged combustion engine (1) whereby a valve-controlled EGR line (4) runs between the engine's exhaust side (2) and inlet side (3) and a turbine unit (6, 7) is accommodated in a tu...  
WO/1999/034109A1
Internal combustion engine with a cylinder block (1) which is formed with an evacuation channel (9, 10) for each cylinder. The respective channels have an end which opens into the cylinder barrel (2) and which is so adapted to the piston...  
WO/1999/031374A1
An engine assembly which includes an exhaust gas recirculation mechanism includes an internal combustion engine (10) having an engine air inlet (12) and an engine exhaust outlet (14, 16). The engine assembly further includes a valve asse...  
WO/1999/031373A1
The invention relates to an arrangement for a combustion engine (1) comprising at least one cylinder (2), an intake (3, 4) for the supply of air, an exhaust outlet (9, 10) for discharging exhaust gases, a further line (15) for recirculat...  
WO/1999/028612A1
An engine assembly (10) includes a valve assembly (16) which selectively enables exhaust gas to be recirculated from an engine exhaust outlet (14) to an engine air inlet (12). The valve assembly (16) is positionable between a first valve...  
WO/1999/028611A1
An actuator assembly (90) that uses a fluctuating operational pressure generated by an injector oil pump (18) to actuate an EGR valve (87) is disclosed. The operational pressure is used to operate the actuator assembly (90) without being...  
WO1999001652A9
A system and method for controlling an exhaust gas recirculation system (10) on an electronically controlled, turbocharger (18) equipped internal combustion engine (12) having two or more actuating devices (84, 86). In the disclosed embo...  
WO/1999/018340A1
The present invention is a coaxial master piston (100) for use in providing hydraulic fluid to effectuate a compression release braking function (10), and hydraulic fluid to effectuate an exhaust gas recirculation (EGR) function (20). In...  
WO1998034021A8
A method and apparatus for carrying out a variable timing exhaust gas recirculation is disclosed for use during both positive power and retarding operation of an internal combustion engine. Motion or energy is derived from an engine comp...  
WO/1999/018335A1
In an internal combustion engine (20) braking system which may provide compression release braking and/or exhaust braking, methods and systems are disclosed of controlling the overlap between an exhaust gas recirculation (34) event and a...  
WO/1999/014476A1
The invention relates to a method and to a device for determining the gas intake in an internal combustion engine. The invention aims at determining precisely and reliably the gas intake in an internal combustion engine, and especially t...  
WO/1999/010644A1
The invention relates to a method for controlling exhaust gas recirculation in an internal combustion engine. Known methods provide for a control unit which generally controls the exhaust gas recirculation rate via a throttle and a stop ...  
WO/1999/010643A1
A conversion system for converting a spark ignition engine to operate on gaseous fuel is disclosed. The conversion system includes an electronic controller which operates on several novel principles to provide superior performance/respon...  
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/1999/001652A1
A system and method for controlling an exhaust gas recirculation system (10) on an electronically controlled, turbocharger (18) equipped internal combustion engine (12) having two or more actuating devices (84, 86). In the disclosed embo...  
WO/1999/000591A1
The invention relates to an internal combustion engine, specially for a motor vehicle. Said engine is fitted with an injection valve and directly injects fuel to a combustion chamber during a compression stage in a first operating mode o...  
WO/1998/045581A1
Exhaust gas recirculation and selective catalytic reduction with urea (20) or other NO�x?- reducing reagent are employed to enable good fuel economy and low emissions from diesel and lean-burn gasoline engines (14). EGR (32) is operate...  
WO/1998/044250A1
The invention relates to a device for determining the volume of air entering the cylinder of an internal combustion engine with a supercharger, according to values such as speed, air flow rate in the induction pipe, throttle valve contro...  
WO/1998/041746A1
A combustion engine has a line (20) for feeding exhaust gases back from the outlet system (3, 3') to the inlet system (2), a valve (17) in the line (20), an exhaust brake valve (50) in the outlet system to increase the pressure in the ou...  
WO/1998/035153A1
A supercharged combustion engine (1) is provided with a device for exhaust gas feedback, so-called EGR, between the engine's outlet (3, 3') and its inlet (2). The device incorporates an exhaust gas driven turbine (6) which drives a compr...  
WO/1998/034021A1
A method and apparatus for carrying out a variable timing exhaust gas recirculation is disclosed for use during both positive power and retarding operation of an internal combustion engine. Motion or energy is derived from an engine comp...  
WO/1998/031924A1
The invention concerns an engine comprising a cylinder head (1) in which a precombustion chamber (4) is superposed on a main combustion chamber (5). The precombustion chamber is equipped with two supplementary valves, an admission valve ...  
WO/1998/026169A1
An engine (1) is provided with fuel injection valves (11) for jetting a fuel to be supplied to cylinders No. 1 to No. 4, and an electrical control unit (ECU) (30) increases or decreases both a fuel injection amount and an amount of exhau...  
WO/1998/012428A1
The air supply system for an internal combustion engine, comprises an air intake (1), a branch conduit (6) connecting the air intake (1) to the exhaust canal (4), a flow metre (7) mounted in the air intake (1) upstream of the point where...  
WO/1997/044579A1
A spark ignition internal combustion engine is described comprising; an intake manifold (12); a main throttle (14) for regulating the intake of ambient air into the intake manifold; an EGR pipe (42) connected between a point in the intak...  
WO1997035106A3  
WO/1997/035106A2
Calculation of the actual fresh air mass flowing into the cylinder makes use of an inlet pipe filling model, the model description being based on a non-linear differential equation. The selected model formulation includes the modelling o...  
WO/1997/033082A1
A device for controlling a cylinder fuel injection type internal combustion engine for controlling the fuel injection timing, ignition timing, and EGR percentage. The object is to stabilize the combustion while improving the fuel efficie...  
WO/1997/021029A1
Proposed is a method and device for controlling an internal-combustion engine, the engine torque being calculated as a function of operation parameters, and/or a given reference torque being converted into the engine-control parameters. ...  
WO/1997/013966A1
A method of operating a multiple cylinder internal combustion engine in a four-stroke cycle. A first amount of fuel is introduced into each of the cylinders (10) earlier than 45 degrees before top dead center of a combustion stroke. Air ...  
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 ...  
WO/1997/004229A1
An exhaust gas recirculation system for a compression ignition engine and a method of controlling exhaust gas recirculation in compression ignition engines are disclosed. The method and apparatus are adapted to the control of exhaust gas...  
WO/1996/038660A1
An excess air factor detecting device for repeatedly detecting the excess air factor of an air-fuel mixture supplied to an engine (1) having an exhaust gas recirculating device during recirculation of exhaust gas based on the running con...  
WO/1996/036802A1
A control device for cylinder injection and spark ignition type internal combustion engines that is provided for switching fuel injection modes of the engine without causing misfire and smoke, deteriorating the exhaust emissions and fuel...  
WO/1996/026357A1
A blower scavenging arrangement for an internal combustion engine (5) including a blower (10) for supplying air to the engine (5), a bypass valve (15) for regulating a bypass airflow from the outlet side of the blower (10) to the inlet s...  
WO/1996/020338A1
A flow rate controller in a flow rate control valve (41) of an internal combustion engine. When a control valve is operated in a closing direction upon the occurrence of an abnormal state in a flow rate control valve such as sticking, vi...  
WO1995028558A3  
WO/1995/028558A2
A method and device are disclosed for operating a diesel engine which is fed with a diesel/water emulsion in which the proportion of water is altered in accordance with the engine speed and load. To achieve further reductions in the conc...  
WO/1995/000753A1
Described is a method of calculating, as a function of the pressure p-SAUG in the intake manifold and the ambient pressure p-AMB, the rate of flow of a gas flowing through a valve connected by a line to the intake manifold in an internal...  
WO/1994/028299A1
A method of operating a two stroke cycle crankcase scavenged internal combustion engine comprising selectively delivering exhaust gas from a location (6) downstream of an engine exhaust port (5) to a crankcase (7) associated with at leas...  
WO/1994/016207A1
A method of operating a two stroke cycle crankcase scavenged internal combustion engine, comprising selectively delivering exhaust gas from a location downstream of the engine exhaust port to the engine crankcase to be delivered together...  
WO/1994/003717A1
A lean burn internal combustion engine system (10) including a motor driven exhaust dilution means (11, 16, 17) for diluting the intake air (18) with a variable level of exhaust gas dilution (19) introduced at the high pressure side of t...  
WO/1993/024749A1
An annoying problem with diesel engines is combustion noise especially under high speed, low load conditions. The problem is caused by the relatively long ignition delay period or the period of time from the start of fuel injection into ...  

Matches 701 - 750 out of 12,332