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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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WO/2004/070708A2 |
A system for indicating, recording and evaluating a driving-data mode under three conditions of acceleration, speed maintenance and deceleration, in which the evaluated results (88) are displayed on an LCD so that the vehicle is driven a...
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WO/2004/065782A1 |
A fuel injector (10) for vaporizing a liquid fuel for use in an internal combustion engine (2110). The fuel injector includes at least one capillary flow passage (12), a heat source (20) arranged along the at least one capillary flow pas...
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WO/2004/046541A1 |
The invention relates to an injection system (1) for internal combustion engines, which comprises an injector (2), a fuel supply line (3) leading to the injector, a sensor for measuring the supplied fuel quantity and a control unit which...
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WO/2004/042217A1 |
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/2004/040129A1 |
The invention relates to a method for measuring the injection rate of an injection valve for liquids, preferably liquid fuel, according to which the injection valve (3) injects the liquid into a liquid-filled sensing volume (1) that is s...
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WO/2004/031561A1 |
When data on the fuel pressure in a common rail (2) are to be collected during engine running, the fuel pressure in the common rail is detected every 6 ° rotation of the crank shaft, the cylinder number, the crank angle and the fuel pre...
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WO2004007951B1 |
The invention relates to a nozzle needle (4) of a nozzle (1), which is located inside an injector housing and is braced against a housing shoulder (5) by means of a spring (2). A piezo element (7), which determines the nozzle needle path...
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WO/2004/025115A1 |
A fuel injection timing device particularly suited for diesel engines has a body (1) with a fuel chamber (4), fuel inlet (5) and an outlet (6). A valve member (3) is biased to close off the outlet (6), and is adapted to open under increa...
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WO2003000429A9 |
A system for actuating a spray pump assembly comprises a reference platfonn, a motor, a drive transmission, a spray pump holder, a force coupler, a force transducer, and a system controller. The motor receives a power and control input, ...
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WO/2003/106829A1 |
According to the invention, in an internal combustion engine, the fuel is directly injected from an injector comprising a piezoelectric actuator into a combustion chamber. An electric charge fed (62) to the piezoelectric actuator and/or ...
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WO/2003/104640A1 |
The invention relates to an injector for injecting fuel into a combustion chamber (10). The injector comprises at least one spray orifice (1) with an inlet opening (2) and an outlet opening (3). The spray orifice (1) has a device for spe...
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WO/2003/083282A1 |
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), said at least one capillary flow passage (12) having an inlet end (14) and an out...
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WO/2003/083283A1 |
A method and apparatus for vaporizing liquid fuel. The apparatus includes at least one capillary flow passage (12), the at least one capillary flow passage having an inlet end and an outlet end; a fluid control valve (18) for placing the...
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WO/2003/083281A1 |
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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WO/2003/081014A2 |
A fuel injection system (18) is calibrated as an assembled system. The fuel injection system (18) includes a unit pump (10) a cam follower (24), a joined fuel injection line (14) and injection nozzle (16). The fuel injection system (18) ...
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WO/2003/081007A1 |
The aim of the invention is to be able to detect the moment of impact of the valve needle (48) pertaining to a piezo control valve (22) of a pump-nozzle unit, when the piezo control valve (22) is closed and/or opened. To this end, the pi...
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WO/2003/066263A1 |
The invention relates to a method for obtaining a determined flow resistance of a flow channel (1), especially an opening in a component (2), said method comprising the following steps: a liquid (3) flows through the flow channel (1); a ...
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WO/2003/050474A1 |
The invention relates to a device for optically measuring boreholes (7) in components (1), preferably injection boreholes (7) in fuel injection valves, said device comprising a light source (15) and an optical measuring device (20) for o...
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WO/2003/044334A1 |
The invention relates to a sensor arrangement for recording the movement of an armature (5) on an electromagnetic actuator for operating a control element, in particular for operating a gas exchange valve on an internal combustion engine...
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WO/2003/038259A1 |
A method of deriving a formula (Fig. 4) for calculating a quantity of fuel injected by an electric-actuated fuel injector (16) during an injection wherein duration of the injection is set by duration of an electric signal (P1, P2) applie...
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WO/2003/038265A1 |
A method of modifying a general formula that is used by an engine control system (10) to calculate duration of fuel injector actuation. Coefficients (P1 coeff., P2 coeff., ICP coeff.) of the formula are modified to calibrate individual f...
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WO/2003/036076A1 |
The invention relates to a regulating device (100) and a method for the automatic regulation of injectors (101) comprising a piezoelectric actuator, a switching valve, a lever element which is coupled to the switching valve, and a regula...
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WO/2003/027448A1 |
The invention relates to a method for operating an internal combustion engine, and to an internal combustion engine in which the position of at least one gas exchange valve per cylinder is measured. Improvements are made in terms of emis...
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WO/2003/027468A1 |
The invention concerns a fuel injection device comprising a fuel injection valve (12) having at least an injection valve element (34) for controlling at least an injection opening (36). Said injection valve element (34) is actuated again...
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WO/2003/027473A1 |
The invention relates to a method for avoiding an internal coking of an injection hole for injection holes in a multi-hole injection valve (9) on a direct injection internal combustion engine (1), in particular on a motor vehicle. Inject...
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WO/2003/012388A1 |
A method for calibrating a fuel injection pump (24) 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 t...
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WO/2003/001054A1 |
Volumetric measuring means (10) comprising a piston and cylinder arrangement (12, 14) in which the cylinder (14) defines a metering chamber (16) having a port, to which a nozzle end (72) of a fuel injector (74) to be tested is connected ...
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WO/2003/001049A1 |
The invention relates to an injector (1) for an internal combustion engine, comprising a piezo-actuator (2). The injector also comprises an identification means which can determine whether or not the piezo-actuator (2) is in contact with...
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WO/2002/086306A1 |
The invention relates to a fuel injection device comprising at least one electro valve (50) for controlling fuel injection. The electro valve (50) is controlled by an electric control device (52) and comprises a solenoid coil (88) and a ...
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WO/2002/084212A1 |
The inventive method for measuring micro-galvanically produced components (23') comprising a three-dimensional structure produced by deep lithography is characterised as follows: a single or multilayer component (23') is constructed by g...
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WO/2002/084101A1 |
A method and an apparatus for control of fuel injection to a combustion engine whereby the movement of a movable valve element (9) in a valve (5) incorporated in a fuel line is detected during the closing phase and is related to a signif...
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WO/2002/084095A1 |
The invention relates to a system and method for correcting the injection behavior of at least one injector. Said system comprises a device (22) for storing information (18) and a means (20) for controlling the at least one injector (18)...
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WO/2002/084108A1 |
A fuel injection valve comprising a needle valve assembly (2) arranged in a valve body (1), where a valve needle (2') is arranged to control the fuel injection into a cylinder (11) of an engine from a fuel chamber (5) arranged in the val...
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WO/2002/084093A2 |
A fuel injector system (10) includes a piezoelectric sensor (52) mounted along a spool axis (18) of the injector body (12). The piezoelectric sensor (52) is mounted within a spool valve stop (41). As the spool valve (16) reaches the stop...
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WO/2002/079639A1 |
The invention relates to a device for determining various pressure levels on components (12, 13), connected to a test line (3, 14), for the purposes of testing. A signal converter (15) and an I/O unit (17) with serial electronic analyser...
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WO/2002/077592A1 |
The invention relates to a device for determining a force, which comprises two elements (E1, E2) that are interconnected by means of an arrangement of springs (F1, F2, Bl). The device is also provided with a position sensor (H, S) for de...
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WO/2002/070996A2 |
In order to measure the amount injected (Vm) by an injection system (18), particularly in an internal combustion engine, a test fluid (22) is injected into a measuring chamber (12) by the injection system (18). The volume in the measurin...
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WO/2002/066282A2 |
The invention relates to a device for receiving a force applied to a seat, particularly a vehicle seat. Said device comprises at least one spring element (5) for elastically positioning the seat in such a way that the seat support compon...
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WO/2002/066809A2 |
The sensor comprises an element (1) made of a material having pronounced magnetoelastic properties. The element (1) is connected to the injection line (2) in a non-positive manner and surrounds the injection line (2). The sensor also has...
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WO/2002/064970A1 |
The invention relates to a method for measuring the injection quantity of injection systems (32, 33), especially for motor vehicles and particularly for in-process inspection, wherein a test fluid is injected into a measuring chamber (45...
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WO/2002/054038A2 |
The invention relates to a device (10) for measuring the injected-fuel quantity of injection systems (32), in particular for internal combustion engines and in particular in an in-process inspection, comprising a measuring chamber (45). ...
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WO/2002/050430A2 |
A device (10) serves for the measurement of the injection amount from injection systems (16), in particular for motor vehicles and in particular in the production check. The device (10) comprises a measuring chamber (14), a coupling devi...
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WO/2002/050437A1 |
The invention relates to a fluid distributor comprising an inlet opening (13) through which the fluid flows into the fluid distributor and a plurality of outlet openings (12) through which individual fractions of the fluid that has flown...
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WO/2002/046606A1 |
The invention relates to a device (20) for measuring the injection quantity of injection nozzles (30), comprising a measuring cell (22) to which the injection nozzle (30) can be coupled. A detection device detects any change in the refer...
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WO/2002/046605A1 |
The invention relates to a method for measuring the injection quantity of injection nozzles (24), especially for motor vehicles and especially during manufacturing checks, wherein test fluid (32) is injected by an injection nozzle (24) i...
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WO/2002/044543A2 |
A bar code for a component, wherein the bar code has characteristics of the component encoded therein. The characteristics may have performance indicia for the component, which may be retrieved by a bar code scanner. Accordingly, the bar...
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WO/2002/033227A1 |
The invention relates to a device and method for detecting the position of an object (1), especially the armature (2) of a valve (3), e.g. of an inlet and outlet valve, of a fuel injection valve, of a gas exchange valve or of the like. T...
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WO/2002/020976A1 |
Disclosed is a valve which is used to control a fluid, comprising an actuator unit (7) which is used to actuate an axially displaceable valve member (6) with an associated valve closing member (15), cooperating with a valve seat (23) in ...
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WO/2002/016757A1 |
The invention relates to a fuel injector (1) comprising 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 an...
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