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WO/2007/060061A1 |
The invention relates to a method and device for determining hydraulic leakage rate in liquid-conveying sections, in particular, injection valves of internal combustion engines, wherein the inventive method consists in introducing a liqu...
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WO/2007/054407A1 |
The invention relates to a fuel injection system having a high pressure fuel source (5) and at least one injector (12) which has at least one injection opening (15) through which fuel can be injected into a combustion chamber of an inter...
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WO/2007/049073A1 |
A leak detection apparatus comprises an opaque vessel (1) including a component mount (8) , a light source (6) and a light detector (7), the light source (61) being arranged to direct light into the vessel (1) and the light detector (71)...
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WO/2007/049038A1 |
A fuel system test cell includes an element comprising at least one injector mounting bay and an injector mount removably mounted in the said injector mounting bay. Injectors mounted in the test cell are equipped with test equipment to m...
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WO/2007/023040A1 |
The invention relates to a piezo actuator (10) in the form of a piezo injector comprising a holding body (20), which has an inner space (40), and comprising a piezo element (30), which has a number of piezo layers arranged in a stack (31...
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WO/2007/012298A1 |
According to the invention, a testing device (10) for high pressure injectors (50) of a common rail injection system of an engine unit, in which testing device (10) the high pressure injectors (50) have in each case one fuel return port ...
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WO/2006/109656A1 |
A fuel injection controller is employed in a fuel injector for pressure-feeding high-pressure fuel to an accumulator (2) and distributing the high-pressure fuel accumulated in the accumulator to a fuel injection valve (3) mounted on each...
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WO/2006/081896A1 |
The invention relates to the production of fuel injectors for direct injection of fuel, wherein the common problem is that valves (111, 112) located inside the injector body (110) have to be electrically contacted from the outside and co...
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WO/2006/074842A1 |
Disclosed is an injector (7, 9, 11, 13) comprising a valve pin (57) whose position is adjustable in accordance with the pressure prevailing in a control chamber (55) and which blocks a fluid flow through at least one injection port (61) ...
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WO/2006/074849A1 |
The invention relates to a method for correcting the injection behavior of at least one injector having a magnetic valve by storing information on the at least one injector and controlling the at least one injector using the stored infor...
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WO2006017778A9 |
A fuel injector (100) and various methods relating to the assembly of the fuel injector. The fuel injector (100) includes a power group subassembly (400) connected to a valve group subassembly (200). The power group subassembly (400) inc...
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WO/2006/053852A1 |
The invention relates to a method and device for leak-proofing a fuel injection valve for an internal combustion engine, wherein the inventive method consists in determining a temperature quantity characterising the temperature of at lea...
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WO/2006/042789A1 |
A measuring device (1) for at least indirectly determining the quantity of fuel delivered during the operation of a fuel injection valve (2) comprises a measuring plunger (42) and a detection device (65). The measuring plunger (42) can b...
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WO/2006/037684A1 |
In injection valves for liquids, such as those used, for example, for the injection of fuel into the combustion chamber of self-ignition internal combustion engines, it is important that the injection valve only discharges the desired li...
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WO/2006/032123A1 |
The present summary refers to an invention patent from an equipment and test method of injection nozzle belonging to the field of equipments used in garages, automotive centres and similar and consists: of pneumatic set (1) for opening/c...
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WO/2006/029931A1 |
The invention relates to a method and device for characterising the return stroke of injectors, in particular piezo-injectors of an internal combustion engine provided with a common rail system. When the internal combustion engine is swi...
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WO/2006/018154A1 |
The invention relates to a method for diagnosing the fuel supply system of an internal combustion engine which operates, preferably, by gas and/or bivalently. Diagnosis devices which detect leakages due to pressure tests in the tank or i...
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WO/2006/015221A1 |
A fuel injector and various methods relating to the assembly of the fuel injector (100). The fuel injector includes a power group subassembly (400) and a valve group subassembly (200) which are independently testable, having a respective...
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WO/2005/116605A1 |
The invention relates to a system and method for continuously controlling an internal combustion engine (3), wherein said system comprises at least one actuator connected to an engine operating member, an electronic card (3) comprising a...
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WO/2005/108772A1 |
According to the invention, a first module (1) comprising an injector housing (4) and a lifting actuating drive is mounted. A second module (2) comprising a nozzle body (16), an injection needle (18), and a restoring means is then mounte...
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WO/2005/108776A1 |
The design concerns a cleaning and diagnostic equipment of fuel injection jets of internal combustion engines by means of a cleaning liquid, especially for workshop application, consisting of the cleaning liquid container (4) connected v...
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WO/2005/095789A1 |
The invention relates to a device for the injection of fuel, which is characterized in that the closed position and the open position of a nozzle needle (8) can be detected in a simple manner using a detection voltage between two electri...
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WO/2005/080923A1 |
Various embodiments of the present invention provide a flow meter device having a laser Doppler anemometer (LDA) which measures the instantaneous center line velocity of fluid flow in a pipe. The flow meter may process the instantaneous ...
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WO/2005/080786A1 |
The invention relates to a contact connection (3) for contacting the valve needle (2) of an internal combustion engine. Said contact connection, on the contact end, is configured as a contact pin (8) which forms an electrical contact imp...
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WO/2005/068807A2 |
A method, system and device for analyzing the performance of a fluid discharge device, pursuant to which a fluid discharge device is mounted in a fixture; a discharge monitoring device is located downstream from the fluid discharge devic...
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WO/2005/057005A2 |
The invention relates to a system (12) for determining a fuel ejection amount from an injection device (10) for an internal combustion engine. Said system (12) comprises an adapter device (13), for the injection device (10) and a measuri...
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WO/2005/047690A1 |
An automotive fuel injector leakage tester (10) comprising a mount (22) for such an injector (32) and a flowmeter (66). An injector (32) contains a first liquid when under test to supply such liquid to the injector nozzle (34) so that su...
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WO/2005/045234A1 |
The invention relates to a method, for diagnosis in a fuel injection device (22), comprising a piezoactuator (26), by means of which a valve element is operated. According to the invention, the fuel injection device (22) is connected to ...
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WO/2005/042969A1 |
The invention relates to a sensor array for detecting travel of a movable member, especially a positioning element that is movable using an actuator. Said sensor array comprises a stationary coil arrangement (18) that is provided with an...
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WO/2005/042945A1 |
Apparatus (10) for cleaning a fuel injection system (12) comprises a pump (14) and a canister (16) holding a volume of a cleaning solution. The canister (16) is formed in a manner whereby a user can visually inspect the cleaning solution...
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WO/2005/040599A1 |
A method of optimizing mounting position of a direct injection fuel injector tip that can be used to minimize injector tip deposit formation of one or more selected internal combustion engine and direct injection fuel injector. The metho...
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WO/2005/038239A1 |
Method of testing a fuel injection valve 1 for a diesel engine by supplying pressurized oil to the inlet side of the valve. According to the invention the oil pressure is gradually recorded, the pressure increase being interrupted at the...
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WO/2005/035959A1 |
The invention relates to a system and method for detecting a closing of a solenoid (112). The system includes a capacity charge circuit electrically coupled to the solenoid (112). The capacity charge circuit conditions the current flow t...
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WO/2005/031138A1 |
Disclosed is an internal combustion engine (1) which comprises a common rail system including individual accumulators (8). The fuel pressure of the individual accumulators (pE(i)) is detected during a specific measurement interval and is...
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WO/2005/031137A1 |
The invention relates to a method and device for quantifying a pre-injection in a fuel injection system of a combustion engine. In injection systems having a pre-injection, the problem exists in that the very small quantity of fuel to be...
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WO/2005/021958A1 |
The invention relates to an injection valve in which the movable valve parts and the valve seat (4) form the electrodes of a capacitor that is connected in an electric circuit, the capacity of said capacitor changing with the valve lift ...
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WO/2005/019636A1 |
The invention relates to a fuel injection unit (1), for the injection of fuel into an internal combustion engine, comprising at least one fuel injection valve (2) and a first fuel distribution line (3), connected to each of the fuel inje...
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WO/2005/017345A1 |
The invention relates to a method used in the quality assessment of an injection nozzle, whereby a medium emerging from the injection nozzle is injected into a pressure chamber in the form of a conical spray. The conditions of emergence ...
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WO/2005/017344A1 |
The invention relates to a method for determining the quality of an injection nozzle, according to which a medium discharged from the injection nozzle is injected into a pressure chamber in the form of a conical jet, a jet image of the m...
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WO/2005/010335A2 |
The invention relates to the operation of an injector assembly, for injecting fuel into an internal combustion engine of a motor vehicle. The invention is characterized by a particular manner of supplying a measuring voltage, for detecti...
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WO/2005/008050A1 |
The invention relates to a method for the real-time determination of the fuel injector flow characteristic. The inventive method comprises the following steps consisting in: assuming that the gain of at least one injector (2) is equal to...
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WO/2005/005935A1 |
The invention relates to a device for measuring time-resolved volumetric throughflow processes, especially injection process in internal combustion engines, wherein the device comprises a translational volume difference sensor (4, 5, 6) ...
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WO/2004/109087A1 |
The invention relates to a valve device and a method for directly injecting a gaseous fuel. In order to achieve a rapid response for a simple, compact structure, an actuator, preferably a piezoelectric actuator acts upon a conversion dev...
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WO/2004/097210A1 |
The invention relates to a double switch, which is formed from a nozzle body (2) and valve needle (5) and which consists of a seat contact switch (S1) and of a stop switch (S2) that is formed on the valve-side end of the valve needle (5)...
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WO2004042412A9 |
A tester for conveniently diagnosing the fuel injectors of an internal combustion engine is described. The fuel injector includes an injector coil that is charged during an energizing period. The tester calculates the difference between ...
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WO/2004/092558A2 |
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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WO/2004/092570A2 |
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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WO/2004/088125A1 |
The invention relates to a method for preparing for use a fuel injection valve for an internal combustion engine, for example for a system of common rail injectors which is at least partially filled with air at a starting moment and is s...
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WO/2004/085826A1 |
A common problem in modern common rail injection systems, in particular those with a rapid injection rate, is that undesirable dispersions occur for the quantity of fuel that is to be injected. A fundamental cause is that it is never kno...
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WO/2004/079321A1 |
Disclosed is a method for determining the leakage of injection systems. Said method can be fully automated and supplies unambiguous test results, making it easy to decide whether an injection system (30), particularly an injector or an i...
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