About 95 results
https://drivepatents.com/patents/1087584 · 28 Apr 2004
A ring plate (1) is held by a holding member (4) and arranged as a dampening component which divides a fuel region into fuel chamber (16) and second chamber (28). The fuel chamber is limited using the nozzle (2) and a needle (3). The second chamber is limi...
https://drivepatents.com/patents/1088256 · 7 Apr 2004
The device has a piezoelectric or magnetostrictive actuator (2) that actuates a valve closure body (22) on a valve needle (15) via a hydraulic coupler (10). The closure body interacts with a valve seat surface (23) to form a seal seat. The coupler has send...
https://drivepatents.com/patents/1089458 · 25 Feb 2004
The invention relates to a metering device comprising a housing (12) having a metering opening (22), controllable by the movement of an axially moveable valve needle, an axially extendable piezoelectric actuator (28) cooperating with the valve needle to co...
https://drivepatents.com/patents/1089449 · 25 Feb 2004
The invention relates to a metering device for dosing pressurized fluids, comprising a housing (12) having an end part provided with an outlet passage (20) terminating with a metering opening (22), an axially moveable valve needle passing through the outle...
https://drivepatents.com/patents/1089479 · 25 Feb 2004
The invention relates to a metering device for dosing pressurized fluids, particularly an injection valve for a fuel injection system in an internal combustion engine, comprising an axially extending housing (12) having an end part provided with an outlet ...
https://drivepatents.com/patents/1090215 · 21 Jan 2004
The valve has an actuator with a piston, a lifting piston interacting with the actuator piston via a pressure medium, a valve needle interacting with the lifting piston with a valve closure body, a valve seat body and a seal seat. The actuator piston has a...
https://drivepatents.com/patents/1090529 · 7 Jan 2004
There is a hydraulic coupling device (10) between the rod moved by the actuator and the spring-loaded valve rod, with upper (11) and lower (12) pistons. There is a fluid-filled gap (34) between the pistons. There is a sealed annular membrane (35) of C-shap...
https://drivepatents.com/patents/1093430 · 10 Sep 2003
The injector (2) comprises a body (4) with an orifice (10) at the end to deliver fuel, a moving needle (12), a piezoelectric actuator (26) and a return spring (18). Movement amplification between the actuator and the needle is provided by a hydraulic chamb...
https://drivepatents.com/patents/1095855 · 21 May 2003
A liquid fuel injection system includes an injection unit (15) for atomizing liquid through application to the fuel vibration energy induced by the operation of piezoelectric/electrostriction elements, and a discharge valve (14) for discharging pressurized...
https://drivepatents.com/patents/1096901 · 9 Apr 2003
A liquid injection apparatus is provided which is capable of uniformly atomizing and injecting liquid such as fuel even if the surrounding environment changes significantly. A liquid injection apparatus (10) comprises an injection unit (14) fixed to a liqu...