Fuel injectors having adapter grommet

Details Fuel injectors having adapter grommet Fuel injectors having adapter grommet

1990-01-30

1991-09-03

Miller, Carl Stuart

Internal-combustion engines

Charge forming device

Fuel injection system

277170, 123472, F02M 6114

Patent

active

050443402

ABSTRACT:
The O-ring seal at the tip end of a particular model of fuel injector is replaced by an adapter grommet which provides an axial seal. This makes the fuel injector interchangeable with another model of fuel injector that is specifically designed for an axial seal. The adapter grommet comprises a radially inner portion disposed in the injector tip's circular groove that was orignally intended for the O-ring seal, and a radially outer portion that axially overlaps both the groove and a portion of the tip that is distal to the groove. The radially outer portion of the adapter grommet provides the axial seal with the shoulder of a hole into which the tip is inserted.

REFERENCES:
patent: 2477533 (1961-07-01), Whiting
patent: 4014372 (1977-03-01), Dichiara
patent: 4240384 (1980-12-01), Urbinati
patent: 4294215 (1981-10-01), Hans
patent: 4570602 (1986-02-01), Atkins
patent: 4945877 (1990-08-01), Ziegler

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