Filter for fuel injector

Details Filter for fuel injector Filter for fuel injector

1998-06-08

2000-01-18

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Including valve means in flow line

Reciprocating

2395333, 23953311, 23953312, 2395851, 2395855, 239590, 2395903, 239DIG23, 25112921, B05B 130, B05B 114, F02M 3900

Patent

active

06015103&

ABSTRACT:
A fuel injector for delivery of fuel to an internal combustion engine has an injector body defining a central axis, a fuel discharge opening coaxial with the central axis having a valve seat extending thereabout, and a valve element normally seated on the valve seat to close the fuel discharge opening. The valve element is operable to move off of the valve seat to open the fuel discharge opening allowing fuel to pass through. A filter-valve guide is coaxially positioned upstream of the valve seat and includes an annular closed bottom, an outer wall extending coaxially upwardly from the annular closed bottom to define an outer diameter, and an inner wall extending coaxially upwardly from the annular closed bottom to define a central opening. The valve element passes through the central opening and the guide inner wall guides the valve element as it moves relative to the valve seat. The annular closed bottom includes filtration openings to filter particulates from fuel passing therethrough, such that particulates are prevented from flowing to the valve seat.

REFERENCES:
patent: 5236173 (1993-08-01), Wakeman
patent: 5423489 (1995-06-01), Wood
patent: 5636827 (1997-06-01), Kilgore et al.
patent: 5678767 (1997-10-01), Rahbar
patent: 5755386 (1998-05-01), Lavan et al.
patent: 5775600 (1998-07-01), Wildeson et al.
patent: 5860601 (1999-01-01), Egizi

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