About 26 results
https://drivepatents.com/patents/1013289 · 4 May 2011
A fuel pump (4) for a direct injection system having: at least one pumping chamber (14); a piston (15) which is mounted sliding inside the pumping chamber (14) in order to vary cyclically the volume of the pumping chamber (14); an intake duct (17) connecte...
https://drivepatents.com/patents/1014930 · 16 Mar 2011
A fuel injector for use in an internal combustion engine, the fuel injector comprising a valve member that is moveable within a bore of an injection nozzle so as to be engageable with a valve seat region to control fuel delivery through one or more nozzle ...
https://drivepatents.com/patents/1070721 · 18 Jan 2006
The fuel injection unit for an internal combustion engine includes an electrically operated control valve through which a connection of the pump working chamber to a low pressure section (54) is controlled. The control valve during the feed stroke of the p...
https://drivepatents.com/patents/1073033 · 26 Oct 2005
The oscillation damper (1) for a hydraulic system has a damping chamber (30) connected to a pressure line (10) via a restrictor element (20). A valve (40) which opens in the direction of feed towards the damping chamber is connected parallel to the restric...
https://drivepatents.com/patents/1081604 · 15 Dec 2004
A fuel pump (10) for supplying fuel at high fuel pressures includes a stationary body (12) having a plurality of radial cylinders (42, 44) connecting with a central fuel chamber (64). Inlet and outlet passages (66, 78) communicate with the fuel chamber (64...
https://drivepatents.com/patents/1085000 · 11 Aug 2004
A fuel rail damper (10,110), comprising: a hollow member (12,112) having at least one wall (12a,12b,112a,112b) and at least one active portion (13), said hollow member defining a chamber (20) in conjunction with said at least one active portion, said chamb...
https://drivepatents.com/patents/1087801 · 21 Apr 2004
The pressure-limiting valve (56) has a pressure side coupled to the high pressure region of the fuel injection system and a valve element (74) biased against a valve seat (72) and providing a hydraulic connection between an inlet and an outlet dependent on...
https://drivepatents.com/patents/1088395 · 31 Mar 2004
The fuel injection system has symmetric or asymmetric resistive attenuators (71-72, 91-92) and capacitive attenuators (73,93) to attenuate hydraulic waves, particularly waves at a frequency corresponding to the resonant frequency of the injection system. T...
https://drivepatents.com/patents/1088400 · 31 Mar 2004
The pressure limiting fuel feed (56) for a motor vehicle has the pressure limiting valve in the fuel pump (30) of a fuel injection system. There is a compensating chamber (82) for short term pressure peaks on each feed pass of the fuel pump to prevent unwa...
https://drivepatents.com/patents/1090624 · 2 Jan 2004
The pump has three cylinders (17) set in the housing (23) 120 degrees apart. Each piston has a hemispherical inner end (59) engaging a shoe which engages on a triangular ring (31) on an eccentric shaft. Two galleries (51a,51b) connect the working ends of t...