Fuel injection valve

Details Fuel injection valve Fuel injection valve

2006-06-06

2006-06-06

Hwu, Davis (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Including valve means in flow line

Reciprocating

C239S585300, C239S585500, C239S533200, C239S533800, C239S088000

Reexamination Certificate

active

07055765

ABSTRACT:
A fuel injector, in particular a fuel injector for fuel-injection systems of internal combustion engines, including a piezoelectric or magnetostrictive actuator, which, via a valve needle, actuates a valve-closure member arranged on the valve needle, the valve-closure member cooperating with a valve-seat surface to form a sealing seat, the fuel injector having an hydraulic compensation chamber. A pressure piston cooperates with the compensation chamber, which is filled with hydraulic fluid via an hydraulic fluid inlet. The actuator is arranged between the pressure piston and the valve needle and displaceable in the axis of the valve needle and the pressure piston.

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