Seal for an internal combustion engine injector

Details Seal for an internal combustion engine injector Seal for an internal combustion engine injector

1991-02-25

1992-07-14

Shoap, Allan N.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277152, 277166, 277178, 277183, 277186, 23953311, 123470, F16J 1502, F02M 6116

Patent

active

051296586

ABSTRACT:
This invention relates to a seal for an internal combustion engine injector, of the type intended to produce a seal between the outside wall of the injector or of an injector support facing the wall of the housing provided for the injector in the cylinder head of the engine.
The seal comprises a cylindrical reinforcement (4), of approximately L-shaped section, whose short leg (6) defines an annular bearing surface for resting against an end bearing surface (14) of the injector or of the injector support (3), and on whose long leg (5) an elastomer packing (7) is made to adhere that has an annular inside sealing bearing surface (8) able to assure a sealing contact with the peripheral surface of the injector or the injector support, and at least one sealing lip (9) projecting outward, preferably near the free end of the long leg of the reinforcement, able to assure a sealing contact with the cylindrical wall of housing (2) of the injector in cylinder head (1).

REFERENCES:
patent: 2729482 (1956-01-01), Kosatka
patent: 4296887 (1981-10-01), Hofmann
patent: 4669737 (1987-06-01), Diffenderfer
French Search Report of 30 Nov. 1990.

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