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JP3536596B2 |
To considerably improve accuracy of air-fuel ratio control by providing an intake valve closing time detecting means for detecting intake valve closing time, and controlling the fuel injection quantity on the basis of the cylinder intake...
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JP3536606B2 |
To provide a fuel injection control device for an internal combustion engine of direct injection spark igniting type capable of making changing-over between the stratified combustion and homogeneous combustion, whereby the changing-over ...
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JP3537347B2 |
To generate intended engine output by burning all injected fuel as combustible air-fuel mixture, even if fuel diverts its flow to the ignition plug side sidewall direction of a cavity and the fuel injection valve side sidewall direction ...
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JP2004517253A |
An internal combustion engine (10) comprises at least one combustion chamber (12). The engine is operated whereby, during a working cycle, fuel is at least intermittently injected directly into the combustion chamber (12) by means of at ...
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JP2004162608A |
To provide an internal combustion engine constituted to stably transport fuel spray in the internal combustion engine which transports fuel spray to the periphery of an ignition plug by tumble flow.This internal combustion engine which t...
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JP2004162577A |
To provide a cylinder injection type spark ignition internal combustion engine for allowing a combustible air-fuel mixture to surely exist in the vicinity of a spark plug in the ignition timing in stratified combustion.This cylinder inje...
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JP3533997B2 |
To permit diagnosing failures without installing special sensors such as a valve opening sensor for detecting an opening of an intake air flow control valve. In this diagnostic unit, when failure occurs in a swirl control valve(SCV) 48 t...
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JP2004156625A |
To provide a fuel injection valve capable of preventing deposit generated when gasoline is burned from adhering to the surface of the fuel injection valve for a direct-injection gasoline engine or allowing an easy peeling of the adhered ...
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JP3531427B2 |
To stabilize the combustibility at the time of switching between stratified combustion and homogeneous combustion. In an internal combustion engine capable of switching stratified combustion and homogeneous combustion, fuel injection tim...
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JP3533888B2 |
To prevent lean or rich misfire and suppress combustion dispersion by setting ignition timing according to engine speed and load at the time of stratified combustion, and inhibiting correction to suppress the change range of ignition tim...
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JP2004150361A |
To provide a direct injection type spark ignition type internal combustion engine which can effectively form back tumble flow in a suction port in a simple way without making higher the overall height of an engine and more stabilize stra...
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JP2004150284A |
To provide a homogeneous combustion type gasoline engine with excellent fuel consumption allowing lead-in of a large quantity of EGR gas.EGR gas is led into a combustion chamber (cylinder) by using an external EGR mechanism or an interna...
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JP3531201B2 |
PURPOSE: To restrain HC and NOx at the time of stratification (lean burn) and to restrain the occurrence of knocking and NOx at the time of increasing filling quantity and torque by opening a shutter valve by strengthening a flow (swirl)...
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JP2004137989A |
To perform stratified charge combustion in a wide engine operation state.A recessed groove for fuel to guide fuel to around an ignition plug is formed in a piston top surface. When an engine load L is lower than a second set load LY(N), ...
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JP2004510910A |
An internal combustion engine (10) is operated with a method wherein fuel is injected directly into a combustion chamber (12). The injection takes place at least from time to time so that, together with a corresponding supply of air into...
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JP3516989B2 |
PURPOSE: To continue excellent operation even if failure is caused in a means to stratify the inside of a combustion chamber or a means to control the fuel injection timing in a lean-burn engine. CONSTITUTION: When failure of a cylinder ...
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JP2004100696A |
To effectively lubricate all movable members, and to obtain a good exhaust gas value, in an actuating method of an air accumulating type two-cycle engine.In a partial load range and a total load range of the two-cycle engine 1, an air ra...
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JP2004100670A |
To drastically suppress fuel consumption efficiency and the discharge amount of air pollutant, by drawing the maximum merit of compressing and self-igniting mixture.First mixture mixing fuel and air at a ratio with which the mixture does...
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JP3514083B2 |
To prevent the combustion condition from making a sudden change even if an engine is suddenly accelerated or decelerated. With regard to a cylinder direct injection type spark ignition engine equipped with a means 41 capable of adjusting...
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JP3511384B2 |
PURPOSE: To improve the extent of intake efficiency so as to enable lean- combustion by installing plural pieces of intake air passages opening to a combustion chamber, and interconnecting each of these intake air passage to a fuel feede...
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JP2004092418A |
To provide a cylinder injection type internal combustion engine capable of carrying out good combustion in both of homogeneous/stratified charge combustion.In the cylinder injection type internal combustion engine, a recessed portion 2b ...
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JP2004509279A |
The invention concerns a method for operating an internal combustion engine ( 1, 18 ) having a plurality of combustion chambers ( 4 ), in the case of which the combustion chambers ( 4 ) are charged with fuel and air or with a fuel/air mi...
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JP3508481B2 |
To avoid torque step difference when stratified burning and homogeneous combustion are changed over, by correcting ignition timing. When judging changeover from stratified burning to homogeneous combustion, a target equivalent ratio t&ph...
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JPWO2002038924A1 |
An object of the present invention is to further provide an in-cylinder injection engine capable of improving fuel efficiency and a control method thereof. The fuel injection valve (19) injects a flat fuel spray into the cylinder. The ai...
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JP2004507658A |
The invention relates to a method for controlling a fuel direct injection of a spark-ignited internal combustion engine that, at least occasionally, is operated in a homogeneous mode. Inside a cylinder, at least one piston is displaced u...
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JP3504841B2 |
To reliably ignite and burn a lean air-fuel mixture by injecting fuel gas into the air-fuel mixture in an ignition recessed part through plural gas injection passages from a gas injector, and housing mixed gas having the thick mixing rat...
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JP3503479B2 |
To unevenly distribute evaporated fuel at an arbitrary location within a combustion chamber and to purge the fuel without disordering the state of air-fuel mixture by generating spiral of supplied air from a suction passage to the combus...
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JP2004068720A |
To provide a control device for a direct-injection engine which can be shifted between a stratified charge combustion mode and a uniform combustion mode and which utilizes an air flow in a cylinder 2 for stratifying a mixture in the stra...
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JP2004068690A |
To achieve quick sulfur poisoning recovery while reducing the increment of a fuel injection amount for an air-fuel ratio of a whole engine to be a theoretical air-fuel ratio or a rich air-fuel ratio during temperature rise control for th...
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JP3498334B2 |
PURPOSE: To concentrate air-fuel mixture in the vicinity of the ignition plug position in a cylinder so as to improve ignitability at the time of lean combustion by preventing ununiformity of air-fuel mixture distribution inside the cyli...
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JP2004036554A |
To suppress combustion unstableness even when an air flow is weak, and to improve fuel economy.In a fuel injection device for a cylinder injection spark ignition type internal combustion engine directly injecting gasoline into a combusti...
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JP2004028027A |
To obtain a combustion condition where the ignition and combustion can be properly kept by allowing the fuel injected during a compression stroke in a supercharging operation, to reach an ignition plug at a determined ignition timing eve...
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JP2004502067A |
A four-stroke reciprocating internal combustion engine that uses stratified exhaust gas recirculation to improve combustion is disclosed. The engine includes at least one combustion chamber defined by a cylinder, a reciprocating piston c...
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JP2004019596A |
To adequately stratify an air-fuel mixture around an ignition plug during a stratified charge combustion in an engine with the cylinder bore set to be larger than a regular value.The cylinder bore is set in a range of 70-100 mm, and the ...
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JP2003343312A |
To reduce exhaust gas in a lean burn region enlarged by supercharging, and prevent knocking and misfire at self ignition combustion. This method is used in the cylinder injection type internal combustion engine provided with turbocharger...
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JP2003343351A |
To enhance the combustion performance of an internal combustion engine which creates a swirl within each cylinder by shaping each piston not to impede the swirl. The internal combustion engine creates a swirl within each cylinder 15 by c...
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JP2003536014A |
A method of controlling fuel injection flow in a cylinder of an internal combustion engine. A piston head of the engine is provided with a combined flow redirector and holding bowl recess extending into a top side of the piston head. A f...
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JP2003328758A |
To provide a fuel injection control device capable of enhancing the fuel economy.The fuel injection control device controls the fuel injecting timings of a first 1 and a second injector 2 so that the fuel at this time is injected from th...
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JP2003534486A |
A fuel injection system (1) for internal combustion engines has at least one fuel injector (7) which injects fuel into a combustion chamber (6) delimited by a cylinder wall (2) in which a piston (3) is guided, and it has a spark plug (8)...
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JP2003534485A |
A fuel injection system for an internal combustion engine includes a fuel injector which injects fuel into a combustion chamber delimited by a cylinder wall in which a piston is guided, and having a spark plug projecting into the combust...
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JP2003532828A |
A multi-mode internal combustion engine and method of operating the engine is provided which is capable of operating in a variety of modes based on engine operating conditions to enhance fuel efficiency and reduce emissions. The multi-mo...
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JP2003532829A |
A multi-mode internal combustion engine and method of operating the engine is provided which is capable of operating in a variety of modes based on engine operating conditions to enhance fuel efficiency and reduce emissions. The multi-mo...
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JP3460431B2 |
To ensure combustion stability in case of lean burn operation due to pre-mixture or stoichiometric air fuel ratio combustion operation by controlling an exhaust gas quantity adjusting means to recirculate some of exhaust gas into an inta...
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JP3460503B2 |
To surely supply CO to a lean NOX catalyst without having influence on an output torque of an engine so as to separate NOX stuck on the lean NOX catalyst surely. A device is provided with a lean NOX catalyst 9A which is formed in such a ...
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JP2003301724A |
To effectively quicken a flow speed of intake air at low speed operation time of an engine, and to effectively reduce flow resistance of the intake air at high speed operation time.The axis 7A of an intake port 7 in an upstream side part...
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JP2003286869A |
To provide a cylinder injection spark ignition internal combustion engine capable of stratified charge combustion at a cold start.The stratified charge combustion can be stably achieved compression stroke injection by setting a lift amou...
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JP2003269220A |
To solve such problems with a cylinder injection engine basically performing stoichiometric combustion as a combustion configuration where the assurance of the stability of combustion is difficult to be compatible with the suppression of...
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JP3449438B2 |
PURPOSE: To secure stable combustion even if air quantity is reduced by installing a throttle valve, by strengthening the flow in a cylinder, in the operation region having the less intake quantity such as in the low load operation regio...
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JP2003254070A |
To secure the ignition stability of an air-fuel mixture by maintaining balance between the penetration power of a fuel spray and the strength of tumbling flow while promoting the mixing of fuel with air and its atomization to improve fue...
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JP2003254067A |
To increase degrees of freedom of ignition timing control by prolonging the retention time of a combustible mixture in a combustion chamber structure where tumbling flow T going toward an injector 18 is created in a cylinder combustion c...
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