Fuel injector

Details Fuel injector Fuel injector

1997-11-13

1999-05-18

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

2395332, 2395333, 2395851, F02M47/02

Patent

active

059043008

ABSTRACT:
In a fuel injector for a fuel injection system of an internal combustion engine including an injector housing with an injection nozzle controlled by a valve needle extending through a cylindrical fuel pressure space from which fuel under pressure is supplied to the fuel injection nozzle, the fuel pressure space includes a flow limiting piston with a seating surface at its end adjacent the needle tip and the injector housing has a valve seat disposed opposite the piston seating surface for blocking fuel flow to the injector nozzle when the flow limiting piston is seated on the valve seat and the flow limiting piston is spring-biased away from the valve seat with a force which is sufficient to normally hold the flow limiting piston away from the valve seat, but which permits closing of the valve when the fuel flow to the injector nozzle becomes excessive.

REFERENCES:
patent: 2556369 (1951-06-01), Hogeman
patent: 4047664 (1977-09-01), Kranc et al.
patent: 4674688 (1987-06-01), Kanesaka
patent: 5531382 (1996-07-01), Buckley et al.
patent: 5551634 (1996-09-01), Raab et al.
patent: 5718385 (1998-02-01), Fontell
patent: 5826801 (1998-10-01), Kobayashi et al.

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