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JP3630174B2 |
PURPOSE: To enable restoration to the normal state to be quickly detected by prohibiting calculation of a mean value when the mean value of an air-fuel ratio correction factor is changed to the outside of the specific range after abnorma...
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JP3613222B2 |
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JP3608574B2 |
PURPOSE: To prevent the generation of smoke and the reduction of the cranking rotation frequency at the starting time, in the fuel injection control device of an internal combustion engine, which controls the opening and closing of an el...
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JP3596115B2 |
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JP3592339B2 |
A fuel system includes an electronically controllable high pressure fuel pump operable to supply high pressure fuel from a lower pressure fuel source to a high pressure fuel collection chamber having a pressure sensor associated therewit...
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JP3594366B2 |
PURPOSE: To restrain any swing by a few drive frequency by switching a first frequency signal to a second frequency signal lower than the first frequency signal in response to the number of an engine rotation and controlling by the on/of...
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JP2004324510A |
To considerably reduce an adjusting time in an adjusting process of an injection amount dispersion of a distributor type fuel injection pump after assembling a solenoid spill valve 6 to a pump housing of the distributor type fuel injecti...
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JP3588999B2 |
To reduce exhaust gas, prevent generation of white smoke while improving engine stability during cold/warm-up operation of a diesel engine, and to improve heater performance during cold/warm-up operation. An engine combustion temperature...
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JP2004285912A |
To provide a fuel injection device having a servo timer mechanism and a load timer mechanism with reverse-advancing characteristics, and to prevent the generation of erosion.The load timer mechanism has an escape passage 76 formed in a g...
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JP3573172B2 |
To secure an accurate injection timing by selecting one of a plurality of injection timings according to the running condition of an engine and closing a fuel injection amount control solenoid valve according to the selected injection ti...
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JP3572433B2 |
A fuel injection timing control system for a diesel fuel injection pump with a duty-cycle controlled electromagnetic solenoid valve associated with an injection-timing-control timer piston to change a timer-piston axial position or a set...
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JP3567485B2 |
To provide a fuel injection pump which can sufficiently and stably supply fuel to a fuel pressurization chamber during a fuel intake stroke, a plunger chamber (23), a spill port (29) and a spill passage (33) are mutually communicable, wh...
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JP2004257252A |
To provide an accumulator-distributor type fuel injection pump capable of attenuating pressure fluctuations in an accumulation chamber generated by fuel injection, and stabilizing pressure throughout the chamber.The accumulation chamber ...
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JP3564969B2 |
To provide a control device for a diesel engine, which can quickly suspend its operation. This diesel engine equipped with a distribution type fuel injection pump, is provided with a required fuel injection quantity computing part 31 cap...
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JP3560711B2 |
PURPOSE: To provide a fuel injection pump whose fuel injection timing can be optionally changed in a wide range and which is excellent in quick responsiveness to a change and stability of the fuel injection timing. CONSTITUTION: A fuel i...
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JP3551576B2 |
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JP3545694B2 |
To utilize an injection device to form the ratio of fuel to be injected by continuously opening the injection device without applying an excessive thermal load to a part of the injection device. A joint injection type fuel accumulator 7 ...
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JP3541463B2 |
PURPOSE: To provide a filter device for a fuel injection pump which can collect foreign matters with the simple constitution. CONSTITUTION: A suction hole 7 of a feed pump is branched from the halfway of a fuel supply hole 44 fromed in a...
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JP3540836B2 |
PURPOSE: To provide a fuel injection pump making a work chamber pressure arrive at a prescribed high injection pressure in a low rotation speed and load range by preventing overload in a high rotation speed and load range. CONSTITUTION: ...
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JP2004514824A |
A solenoid-valve-controlled fuel-injection pump for internal combustion engines, in particular diesel engines, has a solenoid valve, whose valve needle separates a high-pressure region from a low-pressure region, i.e. connects the high-p...
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JP2004137995A |
To provide a fuel injection system including a subtank of an alternative pathway which is provided separately from a main tank of a fuel tank, in which fuel switching can be performed without causing the deterioration of oil sealing func...
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JP2004137997A |
To provide a low-cost fuel injection device equipped with structure capable of coping with respective controls of a LST cut control and an inner pressure control with one solenoid valve for regulating hydraulic pressure.A fuel injection ...
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JP2004116475A |
To provide a fuel injection pump suppressing a timer delay angle in a low load area, improving the timer delay angle in a middle load area, and having a simple structure.The fuel injection pump equipped with a load timer mechanism LST co...
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JP2004084538A |
To provide a common rail type fuel injection system capable of detecting failure without misjudging it as fuel leakage when a pumping failure is caused to any of a plurality of fuel pumping systems built in a supply pump.An ECU 5 monitor...
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JP3507106B2 |
PURPOSE: To improve durability of a spring on the opening valve side by a method wherein fuel fed with a pressure to an injection nozzle is spilled at a given timing. CONSTITUTION: An electromagnetic spill valve (an electromagnetic fuel ...
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JP2004003491A |
To prevent a cam-driving type injection component from being damaged when a high pressure is generated.After solenoid valve devices 1.1, 1.2, 1.3 and 1.4 are assembled, the solenoid valve devices are operated in a range of a functional i...
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JP3467859B2 |
PURPOSE: To move a timer piston smoothly irrespective of differences in coefficient of thermal expansion when a material of a housing differs from that of a cylinder liner in a fuel injection pump of an internal combustion engine. CONSTI...
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JP3461883B2 |
PURPOSE: To realize discontinuous movement of an adjusting plunger by render a slide face move in a sliding direction of a control slider corresponding to spring forces and in conjunction with the control pressure. CONSTITUTION: When a c...
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JP2003293904A |
To provide a fuel injection pump wherein service life of a plunger is increased without decreasing performance such as injection performance.The fuel injection pump comprises: the plunger 5 rotated and reciprocated by a cam mechanism C f...
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JP3457112B2 |
To secure good startability and reduce smoke during starting simultaneously regarding the start-time injection method of an electronic control diesel engine. A rotation detecting sensor 35 for outputting a pulse signal for each rotation ...
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JP3447079B2 |
PURPOSE: To prevent erroneous lowering of fuel injection pressure by providing a means to shut off a connection condition during a force-feed stroke of a plunger in a passage for connecting a timer high-pressure chamer to a fuel chamber....
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JP2003247428A |
To solve the problem in the prior art, in which a fuel-cut valve is eliminated in order to avoid troubles in an electric system, and an injection quantity is throttled mechanically by manual operation, and there is a possibility of locki...
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JP2003247429A |
To solve the problem that when four bolts are tightened at positions at unequal intervals, the bolt-tightening force in the outside-peripheral flange on a long interval side is not so strong as that in other parts, and it has a chance of...
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JP2003247472A |
To solve the problem that a flyweight washer is apt to wear because it is held between a flyweight and a governor sleeve, and a relative sliding occurs between the both, and the flyweight washer wears as lubricity of fuel decreases owing...
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JP3442391B2 |
In a fuel injection pump of the distributor type, a solenoid valve is provided in the distributor and the valve member of this solenoid valve is supported in an axial bore of the distributor and actuated by a magnet fixed to the housing ...
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JP2003239820A |
To solve problems of a distribution type fuel injection pump wherein a rotational load of a roller ring is increased and an excessive load is applied to a slide pin when fuel injection pressure is enhanced following reinforcement of the ...
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JP2003227433A |
To solve conventional problems where sufficient seizure resistance and abrasion resistance cannot be established for future decrease in lubricity and high fuel compression ratio though seizure and abrasion of an abutting sliding part bet...
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JP2003227434A |
To solve conventional problems where sufficient seizure resistance and abrasion resistance cannot be established against future decrease in lubricity though seizure and abrasion are prevented by disposing two plates (lower plate and uppe...
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JP3435881B2 |
PURPOSE: To provide a distributing type fuel injection pump which improves fuel pressurization efficiency and running out of fuel in injection. CONSTITUTION: A valve member 52 of an overflow valve 50 is supported on a cylinder 12 which s...
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JP2003222044A |
To provide a fuel injection pump of low-cost structure which reduces uneven fuel injection timing in an internal combustion engine irrespective of individual difference between fuel injection pumps.The fuel injection pump 1 is provided w...
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JP2003214278A |
To prevent wear and seizure of a slidable contacting part caused by generation of lack of lubrication at the slidable contacting part of a vane with a pump casing since viscosity of the fuel tends to fall for recent environmental protect...
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JP3430729B2 |
To prevent generation of inferiority in fuel injection amount control even when viscosity of fuel changes. In an injection pump, a control sleeve position is adjusted in accordance with a drive amount given to an actuator 61. A target in...
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JP2003206819A |
To provide a device for accurately controlling a spill valve of a fuel injection unit.An engine 10 comprises cylinders 11a to 11f, the fuel injection unit having a valve 15 operable so as to inject fuel into the cylinders in response to ...
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JP2003519755A |
In a fuel injection pump with a housing, a metering pump and an injection adjuster for the metering pump, in which the injection adjuster has a piston that is acted upon by a restoring spring, the starting performance of the internal com...
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JP2003519333A |
A fuel injection device for internal combustion engines having a magnet valve that has a damping chamber and a relief chamber which communicate hydraulically through a damping throttle that damps in both laminar and turbulent fashion. As...
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JP3412375B2 |
PURPOSE: To improve startability by a method wherein fuel injection from a fuel injection means is delayed while after the starting of cracking, an actual injection timing of fuel coincides with a target injection timing. CONSTITUTION: W...
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JP2003148270A |
To optimize the structure of an accumulator distribution type injection pump having a pressure control unit provided with a plunger vertically reciprocated by the rotation of a cam, a plunger barrel in which the plunger is fitted and whi...
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JP2003148278A |
To solve the problem of a current fuel injection pump that a generated reflected wave is sealed in a high-pressure pipe and residual pressure is left in a high-pressure passage system after injecting fuel, to generate unevenness and inst...
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JP2003148271A |
To prevent a fuel leak and to improve workability in an accumulator distribution type fuel injection pump for distributing high-pressure fuel accumulated in an accumulator chamber to each cylinder with a distribution means.In the structu...
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JP2003148273A |
To solve the problem of a current accumulator distribution type fuel injection pump that it is uneasy to install the pump in an engine to complicate assembling work and that it is hard to adjust the fuel injection pump and the engine whe...
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