Fuel injector

Details Fuel injector Fuel injector

2005-06-21

2005-06-21

Hwu, Davis (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Unitary injection nozzle and pump or accumulator plunger

C239S533200, C239S533300, C239S585100, C239S585300, C239S585400, C239S585500

Reexamination Certificate

active

06908042

ABSTRACT:
A fuel injector includes a pressure intensifying chamber communicating with a fuel supply passage through a check valve, a plunger for pressure-intensifying fuel introduced into the pressure intensifying chamber, and a needle valve for injecting the fuel pressure-intensified in the pressure intensifying chamber through an injection port, wherein there is provided in the fuel supply passage a throttle passage normally communicating with a fuel drain passage, air being bled during startup while leaking fuel.

REFERENCES:
patent: 4527737 (1985-07-01), Deckard
patent: 4550875 (1985-11-01), Teerman et al.
patent: 4628881 (1986-12-01), Beck et al.
patent: 4850828 (1989-07-01), Yonezawa
patent: 5819704 (1998-10-01), Tarr et al.
patent: 6085727 (2000-07-01), Nakano
patent: 10-252611 (1998-09-01), None
patent: 11-343946 (1999-12-01), None

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