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JP4381415B2 |
The invention relates to a device for measuring time-resolved volumetric throughflow processes, especially injection process in internal combustion engines, having a translational volume difference sensor having a piston disposed in a me...
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JP4371157B2 |
A liquid measurement apparatus is configured to measure an amount of liquid flowing from a measured object. The apparatus includes a passage member having a measurement passage being connected to the measured object at one end. The measu...
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JP2009270510A |
To accurately determine whether a pressure reducing valve for reducing the pressure of a fuel in a common rail is normal or abnormal.An ECU (electronic control unit) executes a program comprising a step (S102) of controlling an injector ...
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JP4365710B2 |
To provide a method and a device for detecting/correcting a state of a fuel injection valve of an auxiliary chamber type gas engine equipped with the fuel injection valve for ignition, in which existence or nonexisting of clogging of an ...
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JP4357772B2 |
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JP4348146B2 |
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JP4342751B2 |
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JP4333762B2 |
An efficient method of boxing fuel injectors with a good yield where a predetermined quality is secured in a predetermined number of fuel injectors forming a set for one engine, that is, a method of boxing fuel injectors, a first number ...
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JP4332788B2 |
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JP4332877B2 |
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JP2009204128A |
To provide a means capable of easily determining an operation state of a valve element of an electromagnetic control valve without increasing cost.In a method of detecting an operation state of the electromagnetic control valve opening/c...
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JP4323325B2 |
A fuel injector for vaporizing a liquid fuel for use in an internal combustion engine. The fuel injector includes at least one capillary flow passage (12) , the at least one capillary flow passage (12) having an inlet end (14) and an out...
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JP4312938B2 |
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JP4304830B2 |
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JP4305805B2 |
An injection-amount measuring unit, for measuring an injection amount of a fuel injector, employs a flow meter to measure a flow amount of a test fluid supplied from a pump and pumped through a fluid supply passage. A volume enlargement ...
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JP4304486B2 |
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JP4304885B2 |
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JP2009156059A |
To improve a fuel injection characteristic of a fuel injection device by suppressing an influence of the fluctuation of fuel pressure caused by a pressure source.The fuel injection device 1 is equipped with a fuel injection valve 2 and a...
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JP2009150364A |
To provide a control apparatus of a stably controllable flow regulating valve capable of reducing hysteresis due to backlash of the flow regulating valve and preventing hunting due to the hysteresis.The control apparatus of the flow regu...
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JP4292352B2 |
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JP4293147B2 |
To enable to accurately measure and test the characteristic of an injector for injecting compressible fluid. A gas supply flow passage 1 on the upstream side of the injector 100 is provided with a first chamber 11, and a second chamber 2...
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JP2009145130A |
To provide an oil tightness inspection apparatus which surely sets a workpiece in the inspection apparatus even when there is variation in workpiece ends, and also to provide accurate quality determination.The oil tightness inspection ap...
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JP4288233B2 |
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JP4280716B2 |
A method for ascertaining the leakage from injection systems is proposed which is fully automatable and which furnishes unambiguous measurement results, which make a simple decision possible about the tightness of an injection system, in...
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JP2009121482A |
To enable a glitch detector which detects motion of a valve in an engine system fuel injector to discriminate between effective glitch events and ineffective events.The glitch detector is provided with an electromagnetic actuator moving ...
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JP4272886B2 |
For measuring the injection quantity (Vm) of injection systems ( 18 ), in particular in internal combustion engines, test fluid ( 22 ) is injected by the injection system ( 18 ) into a measurement chamber ( 12 ). To increase the precisio...
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JP4269916B2 |
To provide a fault detection device for an injector capable of detecting a fault such as close adhesion in the injector. This fault detection device for the injector for detecting a fault caused in the injector 20 used in an internal com...
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JP4254323B2 |
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JP4248218B2 |
A fuel pump (14) pumps fuel in a method for operating an internal combustion engine (10). The fuel pump (14) is connected at its input end to a fuel tank (12). Fuel reaches at least one combustion chamber (22) of the engine (10) via at l...
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JP2009062877A |
To provide a device for measuring Q characteristic of a fuel injection valve, capable of enhancing measuring efficiency of a Q characteristic, by automatically determining a breaking point of the Q characteristic.This device for measurin...
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JP4241629B2 |
Fault detection device (4) has temperature sensor (33) for recording temperature of fuel flowing in fuel feed pump (2) and temperature of housing (6) of fuel feed pump. The device determines whether a fault in fuel feed pump has occurred...
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JP4239418B2 |
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JP2009503319T5 |
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JP4238043B2 |
To determine the minimum driving time of higher accuracy with minimum operation load in updating the minimum driving time of a fuel injection valve which is the time required until the start of fuel injection after applying a control sig...
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JP4232154B2 |
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JP2009041553A |
To provide a liquid leak measurement device capable of accurately, effectively and continuously measuring liquid leak quantity from a fuel injection valve.In the liquid leak measurement device using capillary, rise of liquid surface is f...
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JP4224947B2 |
To correctly combine an information storing medium having written correction data for absorbing an individual difference of an injector mounted to an internal combustion engine body with an injector exclusively belonging to the informati...
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JP2009024532A |
To provide a differential pressure type flow rate measurement method and a device capable of obtaining correct reference pressure and achieving precise measurement by preventing an influence by heat generated during the discharging opera...
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JP4214971B2 |
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JP4212302B2 |
A fuel metering unit (10) including a pump (12) having a rotor (36) with a plurality of slots. The pump (12) also includes a pivotally movable cam ring (40) coaxially arranged with respect to the rotor (36). Vanes (38) are slideably disp...
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JP4187649B2 |
A method for calibrating a fuel injection pump for an engine fuel injection system comprising determining the pressure made available to an injector nozzle at a portion of the injection cycle before the top dead center position of the en...
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JP4182780B2 |
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JP4184729B2 |
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JP4176757B2 |
To provide a high temperature fluid injection device for an internal combustion engine capable of accurately compensating and controlling lift of a needle valve even if a small lift change due to thermal expansion of the needle valve exi...
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JP4174814B2 |
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JP4164842B2 |
The metering valve (24) is fitted in a hollow body (12) of the injector (11) and is controlled by the armature (27) of an electromagnet (26). The travel of the armature (27) towards the electromagnet (26) is arrested by a stop element (7...
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JP4161746B2 |
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JP4158272B2 |
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JP4158733B2 |
An engine electronic control unit (engine ECU) (18) obtains a fuel consumption of a vehicle from a fuel consumption measuring device (4) and calculates an assumed fuel consumption of the vehicle if it is determined that an engine (2) ent...
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JP4158335B2 |
To provide a noise detector for an engine capable of evaluating the mechanical noise (in particular, noise of fuel injection system) by taking out only a component of mechanical noise from the engine vibration. An output signal from a vi...
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