Injector having structure for controlling nozzle needle

Details Injector having structure for controlling nozzle needle Injector having structure for controlling nozzle needle

2007-10-23

2007-10-23

Hwu, Davis D. (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

C239S533200, C239S585100, C239S585500, C239S088000, C239S096000

Reexamination Certificate

active

11115296

ABSTRACT:
A valve back pressure chamber is provided to exert a back pressure of a first valve needle. Furthermore, a hydraulic pressure passage is provided to extend through the valve back pressure chamber. A valve body is provided to a second valve needle and is driven to connect and disconnect between the hydraulic pressure passage and a fuel tank and thereby to drive the first valve needle. The second valve needle is driven by hydraulic pressure induced by an actuator.

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Chinese Office Action mailed Apr. 13, 2007 in corresponding Chinese Application No. 200510066868.2, together with an English translation.
French Search Report dated Mar. 1, 2007.

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