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Patent Searching and Data


Matches 401 - 450 out of 3,208

Document Document Title
WO1993008401A3  
WO/1993/008401A2
Volumetric metering equipment, especially but not exclusively for use in metering the volume of fluid pumped through one or more injectors (42) by a diesel-engine fuel injection pump, having means which serve to cause the inertia of a mo...  
WO/1992/021874A1
An adaptor (40) for connecting fuel or test-oil injection head to an input end of a receiving line (62). The adaptor (40) is so constructed as to enable a quick-release device (61) to be connected to it and disconnected from it.  
WO/1992/018767A1
The present invention relates to a method and a device for measuring the absolute and relative pressure prevailing inside a tube, such measuring operation being carried out externally without dismounting such tubes. The method comprises ...  
WO/1992/014916A1
An apparatus (1) is used for cleaning the fuel injection system of a motor vehicle. The apparatus (1) includes an adaptor body (3) which fits onto a container (2). The adaptor body (3) has an inlet port (6) and an outlet port (7) which c...  
WO/1992/014991A1
An optical process and device for measuring displacement or deformation is disclosed, in which a light beam is emitted by a light emitter (1) having a time-constant luminous power. By coupling the object to be measured to the light emitt...  
WO/1992/005363A1
A fuel injection nozzle has a valve member (16) slidable in a bore (15) in a nozzle body (13). The valve member has an end profile(31) shaped to engage a seating at the end of the bore. The valve member has an electrically conductive elo...  
WO/1992/003641A1
Device for cleaning (9) at least a part of a fuel supply system (1-8; 26-36) for supplying fuel in fluid form to at least one combustion chamber, which device (9) comprises a reservoir (10) for liquid cleaning fuel and a supply pipe (11)...  
WO/1992/003652A1
In prior art fuel-injection valves, a perforated disc with fuel-metering apertures is located downstream of the valve seat. The setting of the amount of fuel dispensed during the steady 'open' state of the valve can be done by precise ma...  
WO/1992/002726A1
In prior art electromagnetically actuatable valves the flow rate of the medium during the opening and closing processes is set by altering the force of the return spring acting on the valve closure. In addition, the finished valve is fit...  
WO/1991/019899A1
A fuel injection pump for internal combustion engines has an angular position sensor consisting of a stationary sensor part (36) and a mobile part in the form of a sensor wheel (30). In order to determine with the greatest possible accur...  
WO/1991/005952A1
The invention relates to a device for cleaning and controlling injectors of petrol engines. It is comprised of the combination of a control unit (2) and a ultrasonic cleaning unit which is itself comprised of a support adapted to the con...  
WO/1991/002152A1
An electromagnetic fuel injector (10) is calibrated for dynamic flow by creating a blind hole (50) in a stationary pole piece (28) passing through the solenoid coil (20). The blind hole (50) can be created by drilling, or by partially fi...  
WO/1990/014716A1
A method of controlling the operation of a solenoid, particularly for operating the fuel delivery valve of a fuel injector of an internal combustion engine. The method comprises controlling the rate of rise of the current in the solenoid...  
WO/1990/013801A1
Conventional apparatus for testing fuel injectors are inconvenient, difficult to adapt to different injectors and are quite expensive. The subject apparatus overcomes these problems by providing a testing apparatus (10) which has a fuel ...  
WO/1990/012954A1
A method and apparatus for operating an internal combustion engine fuel injection system wherein fuel is cyclically injected directly into an engine combustion chamber through a selectively openable nozzle, whereby the nozzle is periodic...  
WO/1990/006439A1
An injection nozzle fitted with an inductive needle movement probe (28) is to be so constructed that the coil (32) is properly sealed against oil leaks without requiring more space than a design without an oil seal for the coil (32). To ...  
WO/1990/005847A1
The aim of the invention is to obtain a fuel injection nozzle for internal combustion engines which affords maximum space for developing and lodging the induction coil (30) in the nozzle holder (10). To achieve this aim, it is proposed t...  
WO/1990/001623A1
Apparatus (1) for testing and/or cleaning electronic fuel injectors comprising a fuel circuit in which an electric pump (3) supplies fuel or cleaning fluid under pressure to at least one injector (8). Facilities include volumetric measur...  
WO/1990/000680A1
It is desirable for regulating purposes to detect the variations in pressure inside the working chamber (14) of fuel injection pumps (10) without removing the filler cap (20) and opening the fuel circuit. In order to measure the pressure...  
WO/1989/006745A1
A carbon-cleaning apparatus (10) for diesel engines having an independent fuel-flow system including a diesel/chemical mixture fuel tank (34) adapted to be interconnected to a diesel engine at the engine's fuel injection, there being an ...  
WO/1988/005131A1
A monitor device (1) for providing visual indication of the correct operation of one or more operational parameters of a solenoid operated fuel injector unit. Visual indication is provided by light emitting diodes (3, 4) or equivalent mo...  
WO/1987/001416A1
An arrangement for monitoring injection of fuel in an internal combustion engine, especially a compression ignition engine, in which fuel is injected into the or each cylinder via a fuel injector, comprises a polymeric piezoelectric pres...  
WO/1986/006442A1
A fuel injection nozzle for internal combustion engines, with a needle movement sensor, which has an induction coil (30) with a coil core (36), an anchor bolt (38) connected to the needle (18) of the valve, a magnetic check element (25) ...  
WO/1986/006138A1
An injector driver fault detect and protection device for use with fuel injection systems that include at least one solenoid (17) for controlling a fuel injection valve, control means for providing a control signal, injector driver means...  
WO/1986/005553A1
The nozzle comprises a valve needle (14) and an induction coil (30) which sends signals conditioned by the speed of the needle (14) to an evaluation circuit of the injection nozzle. The coil (30) cooperates with an armature (34, 34a) ass...  
WO/1986/005235A1
The circuit is intended to the detection of current modification signals of a needle transducer (Zs) connected to a constant direct voltage source and arranged in the injection device of an internal combustion engine. The circuit is capa...  
WO/1986/002411A1
A device for controlling and monitoring processes in a motorized vehicle, especially ignition and fuel injector processes, in which a series-produced microcomputer (10) incorporated in the vehicle for the calculation of these processes a...  
WO/1985/003127A1
A diesel fuel injection system (10) having a piezoelectric pressure sensor (12) for generating a reference fuel injection timing signal. The sensor has two piezoelectric pressure transducers (50) mounted in diametrically opposed relation...  
WO/1983/001814A1
A device for testing fuel injectors in situ. The device comprises a detector (10) having a piezo-electric crystal (50) which converts mechanical impulses caused by the fuel injector valve needle snapping back onto its seat into electrica...  
WO/1983/000555A1
A fluid conditioning and flow measurement circuit (10) for testing a fuel injection apparatus (12, 20). The circuit (10) has a reservoir (58) communicating with a pump (22) which supplies fuel to the injection apparatus (12, 20) the flow...  
WO/1982/004480A1
A test stand (10) having a principal use for testing a fuel pump and associated governor (24), has a drive shaft (16), an inertial weight (30) operatively associated therewith, and apparatus (56) for selectively engaging and disengaging ...  
WO/1982/001069A1
Fuel injection means, such as needle and poppet type injectors, which are displaceable between open and closed positions. The injection means also includes a chamber (24, 82) and a cylindrical spring (22, 86) positioned within the chambe...  
WO/1981/001613A1
A system for sensing and monitoring the injection of fuel into a fuel injection type engine, such as a diesel engine, including a piezoelectric transducer (20, 50, 60) comprising a piezoelectric collar mounted on the fuel line to sense t...  
JP2019190334A
[Subject] When energizing in order to detect the characteristic of solenoid of a fuel injection valve, energization to solenoid is controlled so that fuel injection is not performed. [Means for Solution] solenoid (58, 60) which carries o...  
JP6597535B2  
JP2019183664A
[Subject] The passage characteristic of each orifice in a fuel injection system is acquired collectively. [Means for Solution] A fuel passage characteristic acquisition device (30) is formed in a pressure accumulation container (42) and ...  
JP2019163752A
[Subject] An inspection device and an inspection method of a fuel pump which can inspect the pressure characteristic of a fuel pump that a source of a drive is a Brushless motor are provided. [Means for Solution] Inspection device 1 of a...  
JP6572840B2  
JP6569611B2  
JP6561493B2  
JP6555093B2  
JP2019127856A
[Subject] It aims at providing appropriately an abnormality decision device of a fuel injection valve which can be judged for a demand of exchange of a fuel injection valve. [Means for Solution] A real injection quantity calculation part...  
JP2019116891A
To provide a correction method for static flow rate deviation of GDI injector and its system for use in correcting a fuel injection amount deviation between cylinders at GDI engine.A correction method for static flow rate deviation of GD...  
JP6544292B2  
JP2019109067A
To provide a displacement detection device which enables increase in detection accuracy of a displacement amount of a member to be detected.A displacement detection device 1 capable of detecting displacement of a valve member 30 relative...  
JP6521725B2  
JP6522423B2  
JP6516386B2  
JP6515777B2  

Matches 401 - 450 out of 3,208