Fuel injection valve

Details Fuel injection valve Fuel injection valve

2006-06-20

2006-06-20

Hwu, Davis (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

C239S088000, C239S585100, C239S585300, C239S585500, C239S584000

Reexamination Certificate

active

07063278

ABSTRACT:
A fuel injector (1) for the direct injection of fuel into the combustion chamber of an internal combustion engine has a piezoelectric actuator (2) which is encapsulated in an actuator housing (3); a valve needle (9) which is in operative connection with the actuator and on which a valve-closure member (11) is formed which forms a sealing seat together with a valve-seat surface (13); and a nozzle body (12) into which the actuator housing (3) is able to be inserted. The actuator housing (3) and the nozzle body (12) are sealed by a common connecting part (4), the connecting part (4) having a first and a second diameter step (19; 20).

REFERENCES:
patent: 4814659 (1989-03-01), Sawada
patent: 5692723 (1997-12-01), Baxter et al.
patent: 6637677 (2003-10-01), Ruehle et al.
patent: 195 34 445 (1997-03-01), None
patent: 199 21 489 (2000-11-01), None
patent: 199 28 204 (2000-12-01), None
patent: 199 43 142 (2001-04-01), None
patent: 0 869 278 (1998-10-01), None

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