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JP5321606B2 |
To highly accurately control an injection state by using an injection ratio parameter corresponding to the current environmental condition, while preventing an increase in learning processing load of the injection ratio parameter.This fu...
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JP5316447B2 |
To provide a method for manufacturing an injector in which a step of measuring the flow rate of a fuel injection valve (injector) is separated from an assembling step. The flow rate characteristic (fuel flow rate) of the injector at the ...
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JP5316196B2 |
The device has a fuel pipe (4) for supplying fuel in a storage part (1) into an injection valve (2). The injection valve injects the fuel supplied from the storage part into an internal combustion engine that is designed as a multi-cylin...
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JP5313846B2 |
To provide an abnormality diagnostic device of a pressure sensor and an accumulator fuel injection device, surely detecting abnormality of the pressure sensor equipped on a common rail without involving addition of parts even during oper...
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JP2013199838A |
To enable generation of an injection rate waveform without a sensor even if an injection area of a fuel injection valve is changed.A plurality of injection rate waveforms are measured while a fuel pressure and an injection amount are cha...
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JP5301564B2 |
A method and an apparatus for testing the piston (2) of an injection pump of a pressure medium, the piston comprising a longitudinal groove (2b) that begins from its frontal face (2a) and extends on its side, and a screw-shaped guide edg...
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JP5293765B2 |
A first curve obtaining unit receives a fuel injection pressure curve and a fuel non-injection pressure curve related to the fuel injection states of a fuel injector (10-1). A transmission time calculation unit calculates the transmissio...
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JP5288049B2 |
An object of the invention is to detect, in a fuel injection control system for an internal combustion engine equipped with a low pressure fuel pump and a high pressure fuel pump, a failure in the fuel injection system including the high...
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JP5287839B2 |
A characteristics-detecting-portion analyzes a fuel injection condition based on a fuel pressure waveform which represents a variation in a detection value of the fuel pressure sensor and then detects the fuel-injection-characteristic va...
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JP5267441B2 |
To provide a fuel injection device for an internal combustion that accurately estimates changes in an internal pressure of cylinder without providing a sensor for directly detecting the internal pressure of cylinder. The device directly ...
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JP2013155701A |
To provide a fuel injection control device that can achieve control of fuel injection with high accuracy without being affected by individual differences of a fuel injection valve and secular degradation.A fuel injection control device f...
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JP5263280B2 |
A waveform detector detects a variation in fuel pressure based on a detection value of a fuel pressure sensor as a fuel pressure waveform. A determining portion determines whether an interval between injections is zero or smaller than a ...
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JP5262948B2 |
An injector includes a nozzle body, a main body including a supply port on the outer peripheral surface of the main body and a high pressure passage, and a fuel pressure sensor on an outer peripheral surface of the main body to detect fu...
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JP5262933B2 |
A fuel injection apparatus that includes a body, a nozzle, a pressure control unit, and a physical quantity measurement unit. The body has a fuel inlet port and a high-pressure fuel passage that is communicated with the fuel inlet port. ...
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JP2013151867A |
To provide a measuring device for an internal combustion capable of determining the presence or absence of a fuel attachment to an inner wall of a cylinder with ease compared to a prior art.A measuring device 10 for an internal combustio...
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JP5240283B2 |
A waveform detector detects a variation in fuel pressure generated by an injection based on a detection value of a fuel pressure sensor as a fuel pressure waveform. A differential calculator calculates a differential waveform representin...
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JPWO2011125371A1 |
Provided are a fuel injection control device and a pressure-accumulation fuel injection device capable of controlling an actual fuel injection amount to a target fuel injection amount without extending the injection time beyond the injec...
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JP5223765B2 |
To provide a fuel injection valve including a fuel pressure sensor capable of suppressing restriction on the mounting position of the fuel pressure sensor. The fuel injection valve includes: a body internally formed with a high-pressure ...
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JP5206660B2 |
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JP2013096335A |
To provide a deposit detection method which can be applied to an existing device with a simple structure.An electronic control unit 4 is used for a common rail type fuel injection control apparatus which is used while setting common rail...
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JP5195602B2 |
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JP5175386B2 |
A method for diagnosing a load drop in a piezo actuator in an injection device, a voltage being measured and being compared to a threshold voltage (24) for the diagnosis, the load drop being present if the measured voltage is greater tha...
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JP5169669B2 |
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JP5169950B2 |
A stem is installed to an injector body and is resiliently deformable upon receiving a pressure of high pressure fuel conducted through a high pressure passage of the injector body. A strain gauge is installed to the stem to sense a stra...
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JP5165728B2 |
A fuel-pressure waveform detector has a detect-waveform obtaining unit for obtaining a multi-stage injection pressure waveform by means of a fuel-pressure sensor while performing a multi-stage fuel injection during one combustion cycle. ...
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JP5158572B2 |
To provide a leak inspection method allowing simple and highly accurate leak determination, in a fuel injection device for a cylinder injection engine. In a check valve 11 as a fluctuating factor of pressure of a fuel pump 2 unique for t...
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JP5154495B2 |
In a fuel injector, a body has formed therein a spray hole and a fuel supply passage. Fuel supplied to the fuel supply passage is delivered to the spray hole. A fuel pressure sensor produces a signal indicative of a pressure of the fuel....
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JP5152025B2 |
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JP5141722B2 |
The device has an electronic control unit (30) for determining a waveform for a multi-stage injection pressure using a fuel pressure sensor (20) while multi-stage fuel injection is performed during a combustion cycle. A signal pattern st...
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JP5136617B2 |
The unit has a detecting unit for detecting a non-injection sensor waveform output by a non-injection sensor (S10), and an injection waveform extracting unit for extracting an injection waveform (S60), which displays alteration in fuel p...
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JP2013019320A |
To provide a system and a method for sensing fuel leak of diesel engine, for sensing the occurrence of fuel leak into a combustion chamber in a diesel engine that uses liquefied gas as fuel.The system and the method for sensing fuel leak...
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JP5126296B2 |
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JP5120318B2 |
An injector has a body that defines a high-pressure passage for passing high-pressure fuel to an injection hole inside, a needle that is accommodated in the body and that opens and closes the injection hole, an electric actuator that cau...
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JP2013007341A |
To provide a fuel-injection-condition estimating apparatus which improves the calculation accuracy of an injection rate waveform.The fuel-injection-condition estimating apparatus is intended for use in a fuel injection system having a fu...
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JP5094718B2 |
The device has a flow rate measuring unit/indicating unit (12) removably attached between a fuel return port (52) and a fuel return pipeline (54) of high-pressure injectors (50). Flexible tube units (20, 22) are arranged between the fuel...
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JP5099191B2 |
In control executed by a fuel supply apparatus having a delivery passage that delivers fuel to a fuel injection valve, a fuel pump that pumps the fuel from a fuel tank to the delivery passage, and a check valve that allows the fuel to fl...
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JP5075095B2 |
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JP5072745B2 |
In an electromagnetic fuel injection valve in which: a suction tubular part projecting toward an inside of a nonmagnetic cylindrical body is provided to a front end portion of a stationary core; and a front end of the suction tubular par...
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JP5042309B2 |
The invention relates to a damping device (7, 7a) for an oscillating component, in particular a valve (1), which is preferably an injection valve (2), of an internal combustion engine, said component being able to be hydraulically actuat...
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JP5032701B2 |
A method and a device for controlling an injection system of an internal combustion engine are described, in which at least two consecutive partial injections are compensated for using pressure wave compensation, it is provided in partic...
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JP5022336B2 |
To provide a fuel injection device accurately controlling an actual fuel injection amount of a rear-stage fuel injection with respect to a target fuel injection amount, in the control of multiple stage injection of a fuel injection valve...
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JP5003796B2 |
The fuel injection state-detecting device has an injection nozzle (10) for injecting a combustion fuel from an injection hole (11b) into an internal combustion engine. An opening operation of a valve element (12) is caused in the injecti...
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JP2012149601A |
To provide a fuel injection control device and a fuel injection control method, allowing high-accuracy control of a fuel injection amount by an injector.This fuel injection control device is an electronic control unit 40 controlling the ...
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JP4996580B2 |
To provide a fuel injection device which can accurately calculate the actual fuel injection amount to be injected by controlling an increase in the number of parts of the fuel injection device. The fuel injection device 1A is provided wi...
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JP4991747B2 |
The method involves inserting a fuel-injection valve in a test body (2), and supplying the valve with a test fluid (10) below a predetermined pressure. A carrier gas flow (5) is supplied in a flow channel (4) of the test body, where a va...
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JP4981825B2 |
The fuel supply system has a leakage detection screw (17,17') which is interacted with every permanent high pressure fuel line staying below high pressure and particularly with every temporary high pressure fuel line staying below high p...
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JP4968319B2 |
Provided is an abnormality determination device for determining the presence of abnormalities in a plurality of fuel injection valves. The abnormality determination device is provided with a pressure sensor, and an electronic control uni...
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JP2012122397A |
To reliably prevent intrusion of electric noise in an injector configured to take out a lead wire connected to an electronic component to the outside of the injector.The injector includes a cylindrical first shield cover 3, a plate-like ...
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JP4959509B2 |
A fuel injector for an internal combustion engine is provided. The fuel injector is equipped with a fuel pressure sensor (50) which is installed in a metallic injector body (4). The fuel injector also includes an amplifier (54) working t...
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JP4908728B2 |
A system and a method for correcting the injection characteristics of at least one injector, having a device for storing information and an arrangement for controlling the at least one injector, taking into account the stored information...
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