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JP4909461B2 |
A hydraulically-actuated unit fuel injector of the intensifier type is provided with two independently operable active control valves. A selectively actuable fuel pressure control valve is disposed on the hydraulic actuation fluid side t...
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JP4894492B2 |
To provide a fuel injection control device capable of accurately controlling injection quantity of fuel injected by the fuel injection device. This fuel injection control device controls injection quantity of fuel injected from the fuel ...
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JP4881927B2 |
To sufficiently achieve improvement of output of an engine by cylinder cooling in an internal combustion engine equipped with two fuel injection valves having different vaporization performances of fuel spray for each cylinder in an inta...
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JP4871364B2 |
A method of operating a fuel injector (2) having a piezoelectric actuator (20) for controlling movement of an injector valve needle (10) comprises: (a) prior to an initial fuel injection event, reducing the voltage across the actuator at...
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JP4869342B2 |
The fuel injector injects fuel from a fuel store (1) at two or more different pressures. It includes an injector housing (11) in which a jet needle (6) can move, and a selectively-openable injection jet (7). The fuel pressure in the cont...
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JP4861915B2 |
To provide a control device for an internal combustion engine, capable of achieving stable ignitability especially when an engine is in a low temperature or operated at a low load by appropriately controlling the amount of fuel injected ...
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JP4861594B2 |
A solitary fuel injector (30, 230, 330, 430, 530, 630) for a diesel engine (10) that is capable of injecting fuel for a homogeneous charge compression ignition injection event, a conventional injection event. The solitary fuel injector (...
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JP4842881B2 |
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JP2011252418A |
To accurately perform fuel injection in consideration of the influence of pulsation when fuel injection is performed more than once.A fuel injection system for an internal combustion engine for performing fuel injection more than once in...
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JP4835715B2 |
A fuel injection detecting device computes an actual fuel-injection-start timing based on a falling waveform of the fuel pressure detected by a fuel sensor during a period in which the fuel pressure decreases due to a fuel injection rate...
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JP4838602B2 |
The invention provides an injection nozzle for an internal combustion engine, the injection nozzle (2) including an outer valve member (8) received within a bore (6) provided in a nozzle body (4) and being engageable with a first seating...
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JP4835716B2 |
A fuel injection detecting device computes an actual fuel-injection-end timing based on a rising waveform of the fuel pressure detected by a fuel sensor during a period in which the fuel pressure increases due to a fuel injection rate de...
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JP4833924B2 |
To provide a control device for an internal combustion engine, capable of achieving stable ignitability specially when an engine is in low temperature or is operated at a low load by appropriately controlling the amount of fuel injected ...
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JP4832545B2 |
To prevent accumulation of carbon deposit around the nozzle hole of a fuel injection valve for cylinder direct injection, which causes deterioration with age of combustion characteristics. Fuel injection control pulse for sub injection f...
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JP4826540B2 |
An object of the present invention is to control the discharge amount of unburned fuel components in the internal combustion engine. According the present invention, the number of times of execution of sub fuel injection is changed based...
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JP4820470B2 |
The device e.g. electronic control unit (100), has a common-rail-pressure-control device for controlling a common-rail-pressure on a common-rail (109), and an operating area assumption device for assumption of an operating area. An injec...
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JP4803399B2 |
To enable accurate fuel injection corresponding to a plurality of combustion systems. The fuel injection device of a cylinder injection type internal combustion engine injects fuel into a cylinder by a fuel injection valve having a plura...
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JP4772016B2 |
When a control valve 48 allows communication through a fuel drain channel C3, fuel flows into an inner control chamber R2i from an outer control chamber R2o through a communication channel 47 and flows out from the inner control chamber ...
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JP4773467B2 |
A metering servovalve (5) for a fuel injector (1) of an internal combustion engine has an electro-actuator (15) and a fixed valve body, which defines a control chamber (26) communicating with an inlet (4) and with an outlet channel (42)....
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JP4767282B2 |
A control system for an internal combustion engine having at least one fuel injection valve for injecting fuel in a combustion chamber of the engine. A main injection and a pilot injection are performed through the at least one fuel inje...
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JP4747553B2 |
To suppress generation of smoke while reducing combustion noise by a pilot injection in a compression ignition internal combustion engine performing pilot injection. This compression ignition internal combustion engine performing pilot i...
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JP4739836B2 |
To provide a control device for a spark ignition type cylinder injection internal combustion engine, improving fuel consumption by accelerating combustion all over an operation region without being restricted by operating conditions or t...
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JP4737314B2 |
An actual maximum fuel injection rate is computed based on a falling waveform and a rising waveform of the fuel pressure. The falling waveform represents the fuel pressure detected by a fuel sensor during a period in which the fuel press...
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JP4736137B2 |
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JP4737315B2 |
A fuel injection detecting device computes a maximum-fuel-injection-rate-reach timing and a fuel-injection-rate-decrease-start timing based on a falling waveform of the fuel pressure and a rising waveform of the fuel pressure. The fallin...
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JP4728358B2 |
The injector (1) comprises a balanced metering servovalve (5) for controlling a rod (10) for opening/closing a nozzle. The servovalve (5) has a valve body (7) with a control chamber (26) fitted with an outlet passage (42a) that is opened...
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JP4702217B2 |
To suitably provide the jet effect, by preventing generation of an inverse tumble flow, when strengthening a tumble flow by injected fuel. An ECU 1 controls an internal combustion engine 50 for generating the tumble flow T in a cylinder ...
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JP2011112037A |
To enhance further NOx reduction and fuel consumption rate improvement through the application of operation of injection rate control with a shelf in an operation range suitable for the injection rate control with a shelf, and improve re...
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JP4698368B2 |
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JP2011106273A |
To achieve a reduction in cost and an improvement in reliability and also to achieve a low fuel consumption and a reduction in exhaust gas by injection rate control suitable for an engine load by control over opening/closing of a solenoi...
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JP4688388B2 |
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...
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JP4682452B2 |
To reduce an emission level of NOx and soot from a direct injection type diesel engine. Fuel is injected toward a lip portion 11 of a reentrant cavity 8 to form fuel vapor 16 near the lip portion 11 in an ignition delay period. An expans...
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JP4660582B2 |
A fuel injector (2) for use in an internal combustion engine comprises a first and a second valve member (54,52), an injection control chamber (50) for fuel, and a set of nozzle outlets (58;62); wherein actuation of the second valve memb...
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JP4650126B2 |
To achieve early activation of a catalyst when an internal combustion engine is cold, and to avoid the deterioration of a primary peak of HC. At cold start of the internal combustion engine requiring early temperature rise of a catalyst ...
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JP4640279B2 |
The fuel injection controller has a parameter detection device that detects an operating condition parameter which shows an operating condition of the combustion engine (10). An injection rates controller shows the revisional change of a...
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JP2011038473A |
To provide an internal combustion engine capable of boosting pressure by a high pressure fuel pump up to predetermined fuel pressure in a short time, when starting the internal combustion engine.This internal combustion engine 100 has a ...
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JP4635974B2 |
To reduce combustion noise and emission in a transitional operation state, in a control device of a diesel engine. A variable valve train is controlled by calculating the target valve timing (Step 100). A deviation between the target val...
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JP2011026971A |
To provide a durable and reliable high pressure fuel pump with a pausing mechanism having a simple structure and an internal combustion engine having the high pressure fuel pump.The high pressure fuel pump 41 for pressurizing fuel suppli...
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JP4622853B2 |
To reduce smoke and NOx while ensuring output in a high load region in a stratified combustion region. A first nozzle hole (a specific nozzle hole and its axis indicated by a sign L1) is directed to a lower part near an electrode E of an...
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JP4621775B2 |
A method for metering fuel into a combustion chamber of an internal combustion engine is provided, in which a fuel quantity to be metered for a combustion is metered by a preinjection and at least one additional injection, and in which, ...
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JP4614951B2 |
An arrangement for controlling the fuel supply in a fuel supply apparatus, which arrangement comprises a body part including a space, through which the fuel to be injected flows during the operation, and a fuel inlet opening and a fuel d...
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JP4609227B2 |
To suppress the occurrence of pre-ignition and use a fuel ignition source for stable torch combustion even in operating conditions where a fuel injection amount is greater (in a high load operation region for example). This internal comb...
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JP4604959B2 |
To allow a vehicle to travel even if any malfunction has been detected in detecting precisely malfunction of a capacitor for supplying a peak current for opening a valve in a fuel injection control device in which an injector is opened a...
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JP4605057B2 |
A fuel injection control apparatus of an internal combustion engine is provided with a fuel injection valve that injects fuel directly into a combustion chamber and a controller. When the engine is cold started, a first fuel injection is...
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JP4604829B2 |
To form a spark by fuel spray concentrated near an ignition plug, suppress formation of a wall flow when exhaust temperature is raised by generating after-burning of fuel, and reduce emission. A cavity 121b is formed on a crown face of a...
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JP4607498B2 |
A method and apparatus for trimming a fuel injector located on an engine. The method and apparatus includes modifying an engine speed control, interrupting at least one injection event, monitoring a change associated with an engine speed...
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JP4603921B2 |
To prevent generation of bluish white smoke and deterioration of engine sound feeling in transition from a cold condition to a hot condition even if total demand injection quantity in relation to change of an operation condition decrease...
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JP4593927B2 |
A fuel injection valve (10) for internal combustion engines comprises an actuator (11), which is actively connected to a valve needle (15) that is guided inside a nozzle body (26), and comprises a valve closing body (27), which is connec...
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JP4593804B2 |
The method involves driving the quantity control valve (18) at defined time points for a defined period using pulses via a circuit end stage after switching on the ignition for the internal combustion engine. The pulse duration and frequ...
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JP4591555B2 |
Needles include a cylindrical outer needle that is brought into contact with and moved away from a nozzle body (113) to open and close an injection hole (1132) and an inner needle (112), slidably inserted in the outer needle (111), that ...
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