Filter for solenoid operated fluid metering devices

Details Filter for solenoid operated fluid metering devices Filter for solenoid operated fluid metering devices

1991-12-18

1993-08-24

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Including valve means in flow line

And filter, sifter or screen

2395851, 239DIG23, B05B 114

Patent

active

052381927

ABSTRACT:
That portion of the body of a bottom-feed solenoid operated fuel injector which is placed in communication with pressurized liquid fuel when the injector is mounted in an injector-receiving socket of a fuel rail contains a circumferentially continuous stepped groove in a radially outer portion of which a frameless circular fine mesh filter screen is disposed to cover a radially inner portion and through-holes via which liquid fuel enters the fuel injector. In one embodiment, the margins of the screen are welded to shoulders of the groove against which they are disposed. In another, they are crimped into slots adjacent the groove. In still another, at least one shoulder has a taper so that the corresponding screen margin wedges onto the shoulder. In yet another, a retaining ring is used.

REFERENCES:
patent: 3721390 (1973-03-01), Jackson
patent: 4453671 (1984-06-01), Hafner
patent: 4491272 (1985-01-01), Bradley et al.
patent: 4527737 (1985-07-01), Deckard
patent: 4648559 (1987-03-01), Fuller
patent: 4798329 (1989-01-01), Mesenich
patent: 4941612 (1990-07-01), Li
patent: 4981266 (1991-01-01), Aichele et al.
patent: 5088650 (1992-02-01), Takagi et al.
patent: 5098016 (1992-03-01), Okamoto et al.

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