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JP4904586B2 |
A valve device and a method directly inject gaseous fuel into a combustion chamber. A rapid response in a simple and compact design is achieved by a piezoelectric, magnetostrictive, or electromagnetic actuator that acts on a transmission...
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JP4900430B2 |
A fuel injection device includes a fuel injection valve (20) for injecting fuel, which is distributed from a pressure-accumulation vessel (12). A pressure sensor (20a) is located in a fuel passage (25), which extends from the pressure-ac...
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JP4887149B2 |
A method and apparatus for comparing the flow rate through an orifice within a master part with the orifice within a workpiece by subjecting each orifice to an identical fluid at an identical temperature, under an identical pressure, and...
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JP2012504206A |
An injection system includes an injector, first valve, second valve, and pressure sensing device. In an embodiment, first valve is in communication with an injector outlet and includes a closed position for at least partially stopping fl...
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JP2012026377A |
To provide an error detecting device for injection characteristic data which detects an error in characteristic data showing injection characteristics of an injector and obtains correct characteristic data.The error detecting device incl...
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JP4870021B2 |
To provide a fuel property detection device capable of making injection control start timing corresponding to fuel of new alcohol concentration after change accurately coincident with timing of injection of fuel of new alcohol concentrat...
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JP2012502218A |
The invention relates to a device that includes: a first chamber (3) for measuring a constant volume, and in which the fuel is injected; pressure (5a, 5b) and temperature (6) sensors associated with said first chamber (3); and a second m...
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JP4839267B2 |
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JP4840288B2 |
A fuel injection device of a common rail type fuel injection system for an engine comprises a fuel passage pressure sensor disposed in a fuel passage between a point of a pipe connected to a fuel discharge port of a common rail apart fro...
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JP4840391B2 |
A fuel pressure sensor/ sensor mount assembly for use in a fuel injection system equipped with fuel injectors which inject fuel, as supplied from an accumulator (CL) through fuel pipes (50), into a multi-cylinder internal combustion engi...
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JP4830985B2 |
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JP4829379B2 |
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JP4828754B2 |
The operation of an internal combustion engine under unfavorable operating conditions can lead to the formation of deposits in the combustion chamber ( 4 ). A method and an arrangement for operating an internal combustion engine ( 1 ), e...
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JP4826596B2 |
To provide an abnormality diagnosis device for an internal combustion engine, capable of easily specifying the cause for abnormality in an operation state of an internal combustion engine, and provide an abnormality diagnosis method usin...
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JP2011231696A |
To provide a fuel injection valve which can improve detection accuracy of the movement of a needle valve while suppressing the increase of the outside diameter of a body.The fuel injection valve 1 includes a body 2 having a high-pressure...
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JP4817383B2 |
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JP4791671B2 |
The calibrating process involves using the pressure in the high-pressure zone (HD) as a reference pressure. This pressure is measured by the pressure sensor (7) and becomes the sensor pressure. Its characteristic line is corrected in suc...
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JP4780137B2 |
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JP2011174444A |
To indirectly detect rotational frequency of a pump by a pressure sensor.This fuel supply device 4 includes an ink tank module 42. The ink tank module 42 includes a pump 43, a filter 44 and a pressure control valve 45. The ink tank modul...
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JP4750978B2 |
A method and apparatus are disclosed for detecting leakage in the fuel supply to the injectors of an engine 10 in which the individual injectors are connected to a fuel supply rail 20 to which fuel from a reservoir 14 is supplied under p...
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JP4752458B2 |
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JP4746591B2 |
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JP4709832B2 |
The present invention relates to a system and a method for continuous operation of an internal-combustion engine (2), comprising at least an actuator connected to a working device of the engine, an electronic circuit board or card (3) co...
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JP2011117335A |
To provide a fuel injection controller of an internal combustion engine, which determines whether CO2 emission amount is normal or not without requiring a special measuring instrument for measuring a CO2 emission amount.This fuel injecti...
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JP4700172B2 |
To attain highly precise monitoring or diagnosis for previous conveyance pressure in the fuel distribution pipe of a fuel feed system by detecting the previous conveyance pressure with a pressure sensor mounted on the fuel distribution p...
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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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JP4692126B2 |
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JP4681860B2 |
The method involves identifying a test rail pressure for a fuel injector (34) based on an established baseline injection delay curve that represents delay of the injector in a range of rail pressures. An injection delay for the selected ...
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JP4683020B2 |
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JP4678397B2 |
The device has an injection amount calculation device calculating a fuel injection amount based on an oscillation wave form that is produced from pressure detected by a fuel pressure sensor (20a) e.g. common rail pressure sensor. Another...
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JP4669147B2 |
Fuel injection system comprising a piezoelectric element for controlling the amount of injected fuel and further comprising a control unit for determination of a possible fault of the piezoelectric element or of an electric circuitry dri...
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JP2011064123A |
To perform fuel leakage diagnosis within a return piping with the objective of returning fuel from high-pressure fuel piping to high-pressure fuel pump upstream section.If it is determined that a return piping fuel leakage diagnosis star...
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JP4663017B2 |
A testing method for an ignitable fluid-injector is provided to prevent a multi-fuel engine from being converted into gas operation in case of a defect in combustion due to the malfunction of the ignitable fluid-injector by inspecting th...
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JP4658632B2 |
A Liquefied Petroleum Injection (LPI) fuel pump diagnosis system for determining the operation state of a fuel pump by analyzing a signal inputted from a fuel pump driver of an LPG tank into an interface box, including a fuel pump relay ...
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JP2011052568A |
To provide a failure determining device of high pressure fuel pumps, properly performing failure determination on each of the first and second high pressure fuel pumps provided parallel to each other while specifying which of excessive d...
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JP4622798B2 |
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JP2011013098A |
To provide a liquid discharge flow rate measuring apparatus for implementing a correct, efficient and reliable measurement, even if the discharge flow rate of a high-pressure liquid is minute for a device to be measured.The liquid discha...
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JP4616979B2 |
The system is designed with a discontinuously measuring calibrating unit (2) for the mass flow sensor, arranged in series with the continuously measuring mass flow sensor (6) preferably a Coriolis-Sensor. During calibration, the calibrat...
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JP4605812B2 |
A method for testing the function of a high-pressure pump having a plurality of pump elements, which each define a respective work chamber which is in communication, via a suction valve with a low-pressure region, from which fuel can be ...
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JP2010265790A |
To provide a manufacturing system of electromagnetic fuel injection valves, enabling efficient break-in operation of the electromagnetic fuel injection valves. The manufacturing system includes a distribution chamber 60 in which the plur...
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JP4587259B2 |
The invention relates to a fuel injection valve for internal combustion engines and a method for producing the same. The inventive valve comprises a valve base body (2). A piston-shaped and axially moveable valve element (12) is arranged...
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JP4587156B2 |
A fuel injector (1) including a first body and a second body, a capnut (9) which is in a threaded engagement with the first body and has a shoulder (10) for abutting against the second body to hold said first and second bodies together, ...
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JP4582064B2 |
An apparatus aims at learning a deviation from a reference injection characteristic of a fuel injector provided for a cylinder of an engine having an output shaft. In the apparatus, a detecting unit is configured to detect a minimum inte...
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JP2010255427A |
To provide a fuel injection valve including a sensor element detecting fuel pressure capable of suppressing an increase in the number of components, suppressing an increase in machining cost, and relaxing the mounting position accuracy o...
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JP2010255530A |
To provide a liquid flow rate measuring device capable of accurately and efficiently measuring a liquid flow rate in a measured apparatus without being influenced by a temperature change of an environment even if the flow rate is minute....
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JP2010255425A |
To provide a fuel injection valve improved in the detection accuracy of an injection state in the fuel injection valve including a fuel pressure sensor for detecting the fuel injection state.The outer peripheral surface of a needle 30 is...
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JP2010248997A |
To solve the problem that: at timing when cylinder discrimination is completed and switching from start control to normal control is performed, an integral term in feedback control is excessively increased due to an increase of a differe...
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JP2010249061A |
To provide a fuel injection valve inhibiting enlargement of a body on which a fuel pressure sensor is attached, and simplifying an electrical connection structure of the fuel pressure sensor in the fuel injection valve including the fuel...
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JP2010533265A |
An apparatus and method is described for testing a multi-hole fuel injector nozzle. The apparatus comprises mounting means for the multi-hole nozzle and fuel supply means for supplying fuel to the multi-hole nozzle. The multi-hole nozzle...
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JP4564002B2 |
A fuel system for use in an internal combustion engine includes a plurality of fuel injectors, each injector including at least one capillary flow passage, the at least one capillary flow passage having an inlet end and an outlet end, a ...
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