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JP3206447B2 |
To prevent lowering of output torque of an engine due to residual exhaust gas (residual EGR gas) immediately after switching of a fuel injection mode. An internal combustion engine is constituted such that a plurality of fuel injection m...
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JP2001241329A |
To enable a stratified burning operation from a start time and minimize delivery of unburnt fuel by applying means of improving fluidity of air, at the time of start when air fluidity is few.Stable stratified burning is enabled from a st...
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JP3201936B2 |
To attain the stability and accuracy of stoichimetric combustion, air-fuel ratio combustion corresponding to normal lean burn combustion, and uniform stoichiometric combustion by determining target torque according to an operating state,...
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JP3201790B2 |
PURPOSE: To prevent the mutual interference of the air and to increase the inflamability of the mixture gas by providing vertical walls at the periphery of a combustion chamber between the neighboring P port opening and exhaust port open...
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JP2001512208A |
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...
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JP3201306B2 |
To burn fuel in a latter period injection mode by delaying a piston stroke of a reference engine from an optimal fuel injection period in the reference engine in association with increasing/decreasing of a piston stroke at the time of co...
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JP3198688B2 |
PURPOSE: To secure the satisfactory combustion of the air-fuel mixture when the EGR gas is fed. CONSTITUTION: A pair of intake valves 10a, 10b are arranged on one side of a cylinder head inner wall face, and exhaust valves 12a, 12b are a...
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JP2001207892A |
To provide a fuel pressure setting method of a direct injection gasoline engine for properly injecting fuel via an injector by taking into consideration a change in the combustion chamber inside effective compression ratio generated when...
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JP3189734B2 |
To improve engine output while preventing certainly knock at the time of starting and the like while enhancing a compression ratio in a spark ignition type intercylinder injection internal combustion engine. This spark ignition type inte...
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JP3189733B2 |
To stabilize combustion control by providing a fuel injection amount calculating means for calculating fuel injection amount based on calculated results from a targeted air-fuel ratio calculating means and detected results from an intake...
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JP3186373B2 |
PURPOSE: To atomize and disperse injection fuel so as to prevent generation of smoke at the time of uniform combustion by dividing and injecting a fuel injection amount necessary at the time of low rotation by plural times, when fuel inj...
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JP3183225B2 |
To stabilize the state of an engine without damaging the operation of a brake booster in a laminated combustion internal combustion engine provided with the brake booster for ensuring the driving force on the basis of negative pressure. ...
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JP3183896B2 |
A fuel/air injector for a crankcase compression two-cycle internal combustion engine and control strategy therefore wherein under a first load range of the engine which is generally a low speed, low load range, fuel is supplied to the fu...
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JP3182787B2 |
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JP3175549B2 |
To improve fuel consumption by assisting engine power by an electric motor in an intermediate load region, in an internal combustion engine switching stratified charge combustion and uniform combustion in accordance with a load condition...
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JP3175598B2 |
To secure certain ignition at the time of layered combustion and attain satisfactory combustion at the time of even combustion in a cylinder fuel injection type spark ignition engine in whose combustion chamber tumble flow is produced. A...
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JP2001152856A |
To implement satisfactory stratified charge combustion for each fuel injection amount by heating intake air, in a cylinder injection of fuel type spark ignition internal combustion engine for carrying out at least the stratified charge c...
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JP2001506722A |
The internal combustion engine can be selectably driven either with a homogenous mixture or a stratified charge. The use of one of these operational modes is determined by the load and torque as well as by the temperature of the coolant ...
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JP2001140715A |
To prevent deterioration of intake flowing velocity due to an injector hole in an intake device for an engine. An injector hole 10 is formed on an inner wall of an upper portion of an intake port 2, while a fuel injector 9 is attached to...
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JP2001132458A |
To improve the deterioration of stratified charge combustion in at least a first cylinder in a multi-cylinder fuel injection type spark ignition internal combustion engine wherein the intake valve of a second cylinder is opened before th...
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JP3166636B2 |
To expand a stratified combustion area in a cylindrical injection type spark ignition system. In this device, a fuel injection valve 6 is provided in the vicinity of the peripheral edge of the top of a cylinder chamber 4 and each of a fi...
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JP3163906B2 |
PURPOSE: To enable stable stratified charge combustion within the wide operating range by forming a mixture stratum of the combustible air-fuel ratio near a spark plug, and igniting it. CONSTITUTION: A recessed combustion chamber 5 is fo...
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JP3161204B2 |
PURPOSE: To sufficiently improve exhaust emission in a cylinder injection type spark ignition engine aiming at uniform combustion. CONSTITUTION: A cylinder injection type spark ignition engine is provided with a fuel injection valve, whi...
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JP3160450B2 |
PURPOSE: To keep an air-fuel ratio near a spark plug rich by providing the top face of a piston with a sector recession in such a way that a main part in the sector recession is positioned directly below a spark plug, and forming the bot...
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JP3162145B2 |
PURPOSE: To provide a combustion chamber structure for a lean burn engine with which ignitability of air-fuel mixture can be improved sufficiently at the time of lean burning. CONSTITUTION: A ceiling 23 of a combustion chamber 8 is forme...
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JP2001115842A |
To improve combustion stability in lean burn control or the like, by making a turn flow of intake air to collide against injection fuel in a combustion chamber. A cylinder head 4 is provided with an intake port 6 formed with a first/seco...
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JP3158443B2 |
This invention relates to an in-cylinder injection internal combustion engine. A recessed portion (22A) is arranged in a top wall of a piston (22) to promote formation of a vertical swirl so that a flow of inducted air introduced into a ...
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JP2001107734A |
To improve fuel consumption by forming a mixture layer near an ignition plug during operation with a partial load according to air flow and the shape of a piston and prevent the formation of carbon fouling on the ignition plug when an en...
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JP2001098990A |
To effectively prevent worsening of combustibility when an intake introduced into a combustion chamber gets more reduced than a target value in an operation, in a divided injection area and the like of a compression stroke. A fuel inject...
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JP3153520B2 |
To downsize a stratified scavenging two-cycle engine and improve its producibility. In a stratified scavenging two-cycle engine, a carbureter 6 is held between an air cleaner 7 and an intake pipe 4 and provided with an air flow passage 6...
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JP2001090514A |
To restrain deterioration of a combustion condition caused by ununiformity of exhaust in an internal combustion engine wherein a exhaust valve is opened temporarily during an intake stroke to mix the exhaust into intake air in a combusti...
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JP3152640B2 |
To provide a fuel supply method of a gasoline engine whereby stratified combustion can be easily accomplished without complicating top wall shape of a piston. In fuel supply method of a gasoline engine injecting fuel directly in a cylind...
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JP3149813B2 |
To provide a fuel injection control device for a cylinder injection type internal combustion engine preventing an undershoot of an engine speed, in the case of resetting from a fuel cut mode in a throttle fully-closed condition. A fuel c...
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JP2001073778A |
To maintain high output and enable wide-range stratified combustion in low-load range. This 2-cycle in-cylinder injection engine is equipped with injector 7 and spark plug 8 on top surface 2b of combustion chamber 2a. Further, on top sur...
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JP3143375B2 |
To provide stable engine performance over all speed ranges. This 2-cycle engine comprises a cylinder 2; a piston 4; a crankcase 5; an airfuel mixture supply passage 15 through which an air-fuel mixture is supplied into the crankcase 5; a...
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JP2001059431A |
To improve the fuel consumption at the time of stoichiometric combustion. The cylinder injection type internal combustion engine is provided with a first inlet valve and a second inlet valve which are respectively provided at a pair of i...
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JP2001502773A |
The invention relates to a method of operating an internal combustion engine and to an internal combustion engine respectively. In accordance with the method of operating an internal combustion engine in accordance with the invention fue...
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JP2001027170A |
To collect the fuel in the vicinity of an ignition plug in the stratified charge combustion, and prevent the fuel from carbon fouling of the ignition plug in the uniform combustion.An ignition plug is arranged in a center of a combustion...
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JP2001020837A |
To maintain combustion in an excellent state, in an engine to switch stratified charge combustion and uniform combustion.This control device comprises a main fuel injection valve to inject fuel directly to the combustion chamber of an en...
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JP2001003754A |
To provide a cylinder fuel injection type internal combustion engine to prevent soot from adhesion to the tip part of a fuel injection valve.This internal combustion engine is provided with a squish area 11 set between the tip part of a ...
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JP2000356143A |
To prevent the deterioration of combusting state and reduce the NOx emission amount in an internal combustion engine for switching the combustion method between stratified combustion and homogeneous combustion according to the engine ope...
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JP2000328948A |
To provide an intake control device to be adopted regardless of the type of a throttle valve, without processing a cylinder head. This control device comprises an intake path 16 provided at the downstream side of a throttle valve 24, wit...
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JP2000320338A |
To reduce the blow-by amount, to improve fuel consumption, to reduce harmful constituents in exhaust gas, and to compactly arrange the engine periphery. A combustion operating chamber 15 and a crank chamber 18 are communicated with each ...
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JP2000515608A |
A two or four stroke valve engine including at least one cylinder (3) within which a piston (4) moves and which receives an air-fuel mixture via at least one induction or intake duct (16). For the combustion products, at least one exhaus...
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JP2000314319A |
To expand a stratified combustion operation area into a high load side by expediting the vaporization of a fuel by contriving a cavity shape and increasing the fuel amount injectable into the latter half of a compression stroke, in the i...
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JP3107489B2 |
An air-fuel mixture supply apparatus includes an intake passage opening to a combustion chamber in a cylinder, an intake valve provided between the intake passage and the combustion chamber, a fuel injection valve for injecting at least ...
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JP3104475B2 |
PURPOSE: To attain stratification, capable lean combustion at a large air-fuel ratio by providing a projecting part, accelerating a stratified tumble flow in at least one sloped surface in a virtual plane side and having a squash part in...
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JP3104499B2 |
PURPOSE: To make lean-burn in a large air-fuel ratio possible by generating a stronger tumble flow in a combustion chamber to carry out stratification in the combustion chamber more completely. CONSTITUTION: The present stratified charge...
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JP2000514154A |
PCT No. PCT/EP97/03298 Sec. 371 Date Apr. 26, 1999 Sec. 102(e) Date Apr. 26, 1999 PCT Filed Jun. 24, 1997 PCT Pub. No. WO98/01655 PCT Pub. Date Jan. 15, 1998In order to provide a mixture-compressing two-stroke Otto engine with fuel injec...
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JP2000282864A |
To stabilize stratified burning, and avoid generation of serious functional troubles by disposing a combustion chamber dome and a piston cavity, while offsetting to an exhaust port side and forming a wall part for biasing spray from an i...
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