Fuel injection valve

Details Fuel injection valve Fuel injection valve

1993-02-11

1994-02-08

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Including valve means in flow line

Reciprocating

25112915, F02H 5106

Patent

active

052843025

ABSTRACT:
An electromagnetic fuel injection valve includes a needle valve having a sealed bore of a specified length formed therein a guide hole within which the needle valve is movable. A stopper plate and a valve seat portion ar provided for defining opened and closed positions of the needle valve. Further, a magnetic powder of a specified mass is movably received in the bore. When the needle valve collides with the stopper plate or the valve seat portion, the magnetic powder is moved by an inertia force acting. Due to collision of the magnetic powder with an end of the bore with a specified time lag, a bouncing force resulting from the collision of the needle valve can be canceled. Accordingly, a bounce of the needle valve can be restrained. further, since the inertia force acting on the magnetic powder is utilized, the durability can be improved as compared with the prior art.

REFERENCES:
patent: 4417693 (1983-11-01), Fussner et al.
patent: 4705219 (1987-11-01), Pagdin
patent: 4766405 (1988-08-01), Daly et al.
patent: 5033716 (1991-07-01), Mesowick
patent: 5139224 (1992-08-01), Bright
patent: 5161778 (1992-11-01), Motykiewicz
patent: 5203538 (1993-04-01), Matsunaga et al.
patent: 5219122 (1993-06-01), Iwawaga

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