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Patent Searching and Data


Matches 651 - 700 out of 12,300

Document Document Title
WO/2001/059536A1
A characteristic flow rate of a valve is adapted by weighing the input value valve position with a variable offset value in order to improve the accuracy of mass flow determination even when the valve is choked. The aim of the invention ...  
WO/2001/059280A1
Two different fuels are injected into the combustion chamber of an internal combustion engine. A main fuel is ignited by a pilot fuel that is more readily auto-ignitable than the main fuel. According to the method, load conditions on the...  
WO/2001/059285A2
A method and apparatus for introducing gaseous fuel into a piston cylinder of an operating internal combustion engine in two separate stages involves monitoring a set of engine parameters, determining engine load and engine speed from th...  
WO/2001/055575A1
There is provided a system and method for using an engine's exhaust back pressure (1210) to control a variable geometry turbocharger. The control system determines a desired exhaust back pressure (1205) based on engine parameters. The de...  
WO/2001/051792A1
The invention relates to a device and a method for controlling a rate of recirculated exhaust gas (AGR rate) of an exhaust gas recirculation device (AGR device) for combustion engines during lean operation. A correcting variable is prede...  
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...  
WO/2001/050004A2
An apparatus for controlling exhaust gas recirculation in a motor vehicle having an internal combustion engine with an intake duct to allow influx of air into the engine, an exhaust duct to allow escape of exhaust gas from the engine, an...  
WO/2001/050010A1
An arrangement and a method for control of transfer of EGR gases in a turbocharged combustion engine (1), whereby exhaust gases are drawn off in a regulated manner via a draw-off valve (7) to drive an EGR pump (6) for creating an EGR tra...  
WO/2001/046597A1
A releasable fastener made of or containing a shape memory material or mechanical property loss effect material has an active shape in which it can function as a fastener. When heated, e.g. by microwave radiation, the fastener relaxes to...  
WO/2001/044640A1
The invention relates to a method and a device for controlling an internal combustion engine comprising an electronic control device for injecting or/and igniting. Exhaust gas from a waste gas line is introduced into the cylinders of an ...  
WO/2001/044650A1
The invention relates to a device for recirculating exhaust gas during the operation of multi-cylinder internal combustion engines. The cylinders (2,3) of the internal combustion engine are divided into two groups. The waste gas of one g...  
WO/2001/042639A2
A control system and method for an EGR valve (54), particularly in a diesel engine (30). A processor processes data in feedback control of the position of the valve element to develop from the data a position control signal for setting t...  
WO/2001/042640A1
The invention relates to a method for reducing the pollutant components of exhaust gases in internal combustion engines, in particular nitrogen oxides in motor vehicles. A proportion of the essentially inert gas-like exhaust gas should b...  
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...  
WO/2001/031177A1
A method for controlling the cooling water temperature of a vehicle with an internal combustion engine is disclosed, whereby at least one further sensor, for example, a knock sensor, or a vehicle control unit is used for determining the ...  
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...  
WO2000068554A8
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/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/2001/016475A1
The air ratio of an internal combustion engine (6) with exhaust gas recirculation is regulated by predetermining a set value (m¿L,soll?) characterizing the mass supply of fresh air, in accordance with operating parameters (m¿L,soll?, n...  
WO/2001/014707A1
A turbocharger with an integral Exhaust Gas Recirculation system for an internal combustion engine having a compressor rotor with two sets of vanes on opposite sides of the rotor disk for compression of charge air and recirculated exhaus...  
WO/2001/011217A1
The invention relates to a method for adjusting a boosted internal combustion engine with exhaust gas recirculation, according to which exhaust gas from the exhaust gas stream (5) located upstream from a turbine (3) is introduced into th...  
WO/2001/007774A1
A diesel-cycle engine (22) with a unique exhaust gas recirculation system includes a plurality of cylinders with fuel feed for each of the cylinders and an intake manifold (21) for distributing intake air to each of the cylinders for com...  
WO/2001/000981A1
A combustion engine having an exhaust-gas-driven turbo compressor (6) is provided with a device (20) for recirculating exhaust gases to the engine, this device being connected to the exhaust system of the engine upstream of the turbo com...  
WO/2000/077371A1
Disclosed is a method for compensating deterioration or ageing of NO¿x? storage catalysts by specifically increasing the NO¿x? conversion rate in accordance with a specific excess consumption threshold value. According to extent of dam...  
WO/2000/075643A1
A reliable SCR system for reducing NO¿x? emissions from a lean-burn internal combustion engine (10) utilizes a chemical tagging reagent to assure proper usage of urea or other NO¿x?-reducing reagent (30). A reagent quality sensor (52) ...  
WO/2000/071875A1
According to the inventive method for operating a four-stroke reciprocating internal combustion engine with alternating compression ignition and externally supplied ignition, fuel is injected directly, fresh gas is supplied and waste com...  
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/2000/053917A1
Supercharged internal combustion engine with two separate exhaust manifolds (2a, 2b) from individual cylinder groups and two separate inlet manifolds (3a, 3b) each leading to a respective cylinder group. An inlet conduit (9) from a super...  
WO/2000/047884A1
The invention concerns a elongation valve for controlling the flow rate of exhaust gases recycled in intake manifold (1) of the engine (1, 2, 3). The invention is characterised in that it consists in: calculating the air flow rate (Q¿0?...  
WO/2000/042305A1
An exhaust gas recirculation system for an internal combustion engine. The present invention includes a turbocharger (36), restrictor valve (32), and exhaust gas recirculation valve (34). The restrictor valve (32) is upstream of the turb...  
WO/2000/037787A1
The invention relates to a method for operating an NOx-storage catalyst. According to said method, lean operation is switched off and operation is resumed with $g(l) $m(F) 1.1 when the catalyst temperature is higher than the temperature ...  
WO/2000/029735A1
An internal combustion engine wherein a first type of combustion in which the EGR gas quantity in a combustion chamber (5) is greater than the EGR gas quantity at which the soot production rate is at peak, producing little soot, or a sec...  
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/2000/028203A1
The invention is related to a method and a device for recirculation of a part of exhaust gases from an exhaust pipe (6, 9) of a diesel engine (1) to the inlet of the engine, the exhaust gases being diverted from the exhaust pipe (6, 9) a...  
WO/2000/026527A1
An exhaust emission recirculating system for supercharged diesel engine, comprising a main power diesel engine (11) with a turbocharger (13) and an auxiliary power engine (18) which is connected to the main power diesel engine and suppli...  
WO/2000/020744A1
The present invention is an apparatus for controlling exhaust gas recirculation in an internal combustion engine (12). The apparatus includes an exhaust gas recirculation controller that uses sensed engine operating parameters and the en...  
WO2000001930A3
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/2000/012884A1
The invention relates to an internal combustion engine (1) comprising first cylinders (2-6) and at least one second cylinder (7) and to a method for operating the internal combustion engine (1). The second cylinder (7) serves as a dispen...  
WO/2000/011343A1
A method of regulating gas pressure, in particular excessive pressure, in a dual fluid injection system for an internal combustion engine having delivery injector(s). In this method, gas pressure is determined and if it is above a desire...  
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/2000/008319A1
The invention relates to an internal combustion engine comprising several cylinders arranged in two rows and two turbochargers driven each by the exhaust gases from the cylinders of one cylinder row. The inventive engine is provided with...  
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/2000/001930A2
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 ...  

Matches 651 - 700 out of 12,300