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JP2008025534A |
To provide a premixed compression self-ignition internal combustion engine capable of preventing deterioration of thermal efficiency by keeping the inside of a combustion chamber at a high temperature while restraining combustion noise w...
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JP2008025400A |
To restrain deterioration of combustion in lagging the ignition timing in a control device of a direct injection type spark ignition internal combustion engine in which a required quantity of fuel is injected twice in parts in a compress...
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JP4042483B2 |
To stably form an excellent stratified mixture in a direct injection spark-ignition engine in which a sequential tumble flow is formed. A guide wall 9 is formed on the inner wall surface 41 of a cylinder head, fuel is distributedly impac...
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JP2008014244A |
To enable sure ignition and combustion of a lump of combustible air fuel mixture by two spark plugs during stratified combustion.This engine is provided with a fuel injection valve 1 arranged at a roughly center of a cylinder upper part,...
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JP4037702B2 |
In a Diesel engine with variably actuated valves, the control cam (9) of each inlet valve (V I ) is shaped so as to provoke the opening of the respective inlet valve (V I ) during the engine's normal exhaust phase to accomplish "internal...
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JP4032762B2 |
To secure good ignition stability even when a cylinder 2 is large in diameter, in a direct injection engine 1 equipped with an ignition plug 16 at a ceiling part of a pent-roof type combustion chamber 6 and an injector 18 at a peripheral...
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JP4032690B2 |
In a center injection type of direct engine, since it has an ignition plug (20) and an injector (10) arranged in proximity, there occurs the problem that a sprayed liquid fuel directly strikes the ignition plug (20) and causes the plug (...
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JP4033163B2 |
An internal combustion engine system comprises: a dehydrogenation reactor which performs a dehydrogenation reaction to separate organic hydride-contained fuel into hydrogen and dehydrogenated fuel; supply means which supplies separated h...
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JP4029737B2 |
To form a compact air-fuel mixture mass in a low load; and to form a relatively large air-fuel mixture mass in a high load in stratified combustion. A fuel spray is directly turned to a spark plug by increasing a fuel spray angle from a ...
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JP4030939B2 |
A fuel delivery system (14) includes a drop ejector (30) for discretely ejecting drops of combustible liquid in a digital manner. A controller (76) is configured to cause the drop ejector (30) to provide a first air/fuel mixture to a com...
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JP4026365B2 |
A fuel injector employed in a direct injection engine comprising a spark plug arranged on the top of a combustion chamber, a fuel injector located on said combustion chamber and an intake air control means installed on an intake manifold...
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JP4026784B2 |
To provide a combustion chamber structure for a cylinder fuel injection engine of simple constitution which can ensure good stratified combustion y utilizing reflection of fuel in a piston upper surface. This cylinder fuel injection engi...
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JP2007327464A |
To provide a direct injection type spark ignition internal combustion engine capable of surely maintaining a tumble flow up to the latter half of a compression stroke, without causing an intake shortage, in homogeneous combustion. This d...
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JP2007321619A |
To realize not only homogeneous combustion but also excellent stratified combustion, by surely igniting a combustible air-fuel mixture formed of fuel injected in the latter half of a compression stroke from a fuel injection valve, by a s...
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JP2007321682A |
To compatibly perform stratified combustion and homogeneous combustion by two point ignition. A cylinder injection type spark ignition internal combustion engine 10 having a construction for switching between stratified combustion and ho...
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JP2007315383A |
To provide a spark-ignition internal combustion engine in which occurrence of engine knocking is inhibited even though the constitution is simple. In an intake stroke, an air-fuel mixture injected from an intake-port fuel injection valve...
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JP4016748B2 |
To obtain air-fuel mixture of a desirable air-fuel ratio within a wide load range. In this direct injection spark ignition type internal combustion engine, a fuel injector 11 is arranged at an approximately central part of a combustion c...
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JP2007309277A |
To realize excellent homogeneous combustion, by restraining ununiformity of the air-fuel mixture concentration in a cylinder in the last stage of a compression stroke, in a cylinder injection type spark ignition internal combustion engin...
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JP2007309256A |
To provide a cylinder injection type spark ignition internal combustion engine capable of sufficiently restraining deposition of a deposit, by making the nozzle port vicinity of a fuel injection vale hard to be exposed by a combustion fl...
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JP4015132B2 |
To suppress generation of NOX to improve fuel economy, by controlling fuel injection of a crosshead diesel engine. In the cross-head diesel engine, a fuel injection device performs double injection dependent on an engine load. In a 75% e...
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JP2007303428A |
To improve combustion stability of extremely retard combustion. Extremely retard combustion wherein ignition timing is set after a compression dead center is carried out under the prescribed operation state. During extremely retard combu...
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JP4010211B2 |
To provide a means capable of forming fuel air mixture bulk with appropriate concentration and magnitude within a combustion chamber having a cavity of which volume is fixed in accordance with operating condition of an engine. Dependent ...
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JP4005941B2 |
A combustion control device and a method for a direct injection engine are disclosed wherein, when the engine (1) is operating in the partial load range, the valve opening/closing mode of an intake valve (3) and/or an exhaust valve (4) i...
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JP4007181B2 |
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JP2007285205A |
To suppress collision of an injected fuel with a cylinder bore during the stratified charge combustion and to realize excellent stratified charge combustion by increasing the combustion speed in a cylinder injection type spark ignition i...
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JP2007285276A |
To suppress generation of a pre-ignition by a second ignition plug without degrading the fuel consumption, in a spark ignition internal combustion engine for performing a homogeneous combustion by igniting the homogeneously mixed gas by ...
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JP4000545B2 |
Disclosed is an internal combustion engine having a direct injection combustion chamber. The internal combustion engine includes a fuel injector mounted in a cylinder head at substantially a center of the combustion chamber; an intake po...
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JP3998907B2 |
To improve combustion performance by reliably layering air and EGR gas in a combustion chamber. An intake port 1 is split into upper and lower sections by a partition plate 11, and the inflow rate of an upper intake port 1A is reduced by...
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JP3997966B2 |
To provide a cylinder direct injection type internal combustion engine sufficiently reducing the adhesion of fuel to a wall surface while keeping the homogeneity of an air-fuel mixture when performing intake stroke injection. A period (1...
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JP3994803B2 |
To enable spraying with different spray angles respectively suitable for uniform combustion and stratified charge combustion. An injection hole 4 with a circular cross section is formed at a tip center of an injection valve body 1, and a...
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JP3992012B2 |
To prevent misfire when emitting NOxfrom NOxabsorbent in a stratified charge combustion type internal combustion engine. Fuel/air mixture is stratified in a state that the average air-fuel ratio is lean when an engine is operated under a...
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JP3988383B2 |
A system and method for controlling an internal combustion engine employs a split injection to create stratified air/fuel mixture charge. The stratified charge includes an ignitable air/fuel mixture portion around a spark plug within the...
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JP3988218B2 |
To improve engine output by variable valve system characteristics of an intake valve by avoiding interference of an intake valve with a piston crown surface without providing any valve recess. In a cylinder fuel injection-type spark-igni...
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JP2007255267A |
To prevent an air-fuel mixture in the vicinity of a spark plug from becoming excessively lean and excessively rich in stratified combustion, in a cylinder injection type spark ignition internal combustion engine for performing stratified...
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JP3982482B2 |
To perform good stratified combustion by forming suitable stratified air fuel mixture in a combustion chamber of a cylinder direct injection type internal combustion engine. A center axis 11a of fuel spray from a fuel injection valve arr...
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JP3975517B2 |
To generate an air-fuel mixture near an ignition plug by a fuel spray injected by a first fuel injection pulse signal and to improve the combustibility by dividing the fuel injection pulse signal in a compression stroke into a plurality ...
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JP3976153B2 |
A spark ignition internal combustion engine is described having a variable volume combustion chamber (10) defined by a cylinder head (12), a cylinder bore (14) and a piston (16) reciprocating within the cylinder bore (14). The cylinder h...
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JP3971004B2 |
To switch stratified combustion and uniform combustion in an appropriate mixture state. At the time of switching from stratified combustion to uniform combustion, an equivalent ratio TFBYA4 is gradually brought close to a target equivale...
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JP3969499B2 |
To improve startability at the time of a low temperature while reducing the exhaust rate of NOx by controlling the temperature in a cylinder by controlling the rate of air toward a scavenging blower while re-circulating exhaust gas which...
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JP3968330B2 |
To provide a combustion control device of a cylinder injection type engine inhibiting occurrence of a situation wherein an actual air-fuel ratio largely deviates from an target air-fuel ratio due to blowing-back of fuel from a combustion...
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JP3966798B2 |
To reduce fuel consumption by lean combustion in a four cycle engine having an ignition plug facing a combustion chamber attached on a cylinder head provided with a plurality of air inlet ports opening to the combustion chamber. An ignit...
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JP3968846B2 |
To perform an optimum fuel injection in an extensive engine driving area by installing a variable stroke mechanism, varying the maximum stroke quantity of a fuel injection valve, in this valve and also a stroke quantity control means con...
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JP3968331B2 |
To provide a combustion control device for a cylinder injection type internal combustion engine, capable of changing fuel injection modes at the optimum timing for favorable fuel consumption, exhaust gas performance, etc. This combustion...
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JP3963144B2 |
To restrict the generation of knocking, and to effectively perform combustion by the compression self-ignition in following cylinders in a wider operation range. In a partial load range of the engine, the intake/exhaust flowing condition...
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JP2007205331A |
To provide a fuel injection device in which abnormal combustion is hard to occur by injecting a rather less amount of fuel and a stratified air-fuel mixture surely ignited by a spark generated at the ignition part of an ignition plug is ...
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JP2007198324A |
To quickly activate a catalyst when an engine is cool and avoid the deterioration of the primary peak of HC. When the internal combustion engine for which the early increase in the temperature of a catalytic converter is requested is sta...
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JP3954010B2 |
To provide a control device of an internal combustion engine capable of increasing operability by avoiding the occurrence of the fluctuation of torque since an excellent combustion state can be secured in a cylinder injection internal co...
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JP3956539B2 |
To prevent lowering of concentration of fuel spray in a position around an ignition plug. A position where a confluent point between two forward tumble flows A and A, sucked through a suction port by a tumble reinforcing means and formed...
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JP3956518B2 |
To enable stable stratified change combustion by promoting fuel transportation under operating conditions in which the tumble flow is damped and broken. In this direct injection spark ignition engine, a sub intake port 17 is provided nea...
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JP3956503B2 |
To enhance a combustibility of a stratified charge combustion and a homogeneous combustion by constituting an air-supplying means by an air injection valve for directly injecting an air to a combustion chamber. An air supplying means for...
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