About 35 results
https://drivepatents.com/patents/1081058 · 5 Jan 2005
The invention refers to a piezoelectric injector unit, in particular for injecting fuel into a vehicle engine, comprising a housing (10) containing a valve needle (32) for opening and closing a metering opening (31) and a piezoelectrically driven actuator ...
https://drivepatents.com/patents/1081914 · 1 Dec 2004
The assembly has a piezoelectric unit (11) coupled to a spring (12) by a coupling unit (13). Thermally induced expansion of the unit (11) is translated into a compensating movement of the rigid coupling unit and buffered by the spring. A collar has a coil ...
https://drivepatents.com/patents/1081950 · 1 Dec 2004
The needle has fluid entrance and exit openings for a fluid passage. A cylindrical section is placed between the openings to provide a closed sliding fit of the needle in a valve cartridge. A calibration unit (32) e.g. a pin, is inserted into an axially ex...
https://drivepatents.com/patents/1081973 · 1 Dec 2004
The assembly has a piezoelectric unit (111) that expands in one dimension due to the application of a voltage to two electrodes. The unit (111) is placed between an upper cap (12) and a piston unit. A lower cap (13) is placed in a fixed distance to the upp...
https://drivepatents.com/patents/1083179 · 13 Oct 2004
The present invention relates to a spray pattern element for a fuel injection valve with a pattern forming element, characterized in that the forming element is arranged in a lower end region of a sleeve, whereby the sleeve is usable for sticking the spray...
https://drivepatents.com/patents/1083439 · 6 Oct 2004
The invention concerns a thermal compensator unit that allows to precisely set and keep an equilibrium position. Further, the fluid chambers (4, 5) respectively comprise at least one elastic element (7, 8) so that the respective volume is variable, which e...
https://drivepatents.com/patents/1083724 · 22 Sep 2004
The proposed fuel injector comprises a fuel passage way in which a harmonic damper 25 is arranged. The harmonic damper dampens the noise and vibration of the fuel injector. The harmonic damper is fixed to the inlet tube of the fuel injector. The harmonic d...
https://drivepatents.com/patents/1084547 · 25 Aug 2004
The invention relates to a metering device for dosing pressurized fluids, particularly an injection valve (10) for a fuel injection system in an internal combustion engine, comprising a housing (12) having an end part provided with an outlet passage (14) t...
https://drivepatents.com/patents/1084930 · 11 Aug 2004
A metering device for dosing pressurized fluids, in particular an injection valve for a fuel injection system in an internal combustion engine, is disclosed in which a metal bellows (10a) as the hermetic sealing between the fluid chamber (2) for the pressu...
https://drivepatents.com/patents/1084939 · 11 Aug 2004
In a metering device for dosing pressurised fluid, in particular an injection valve for a fuel injection system in an internal combustion engine, said metering device comprising a chamber (9) within a housing (8), comprising said pressurised fluid, a valve...