Combustion gas seal for injector and sealing structure with...

Details Combustion gas seal for injector and sealing structure with... Combustion gas seal for injector and sealing structure with...

2005-09-06

2005-09-06

Peavey, Enoch (Department: 3676)

Seal for a joint or juncture

Seal between relatively movable parts

Piston ring or piston ring expander or seat therefor

C277S437000, C277S438000

Reexamination Certificate

active

06938901

ABSTRACT:
The invention relates to a combustion gas seal for injectors and to a seal structure disposed therewith, for preventing leakage of combustion gas in a state in which an injector is mounted to an engine head. And, the number of parts is reduced, vibration and noise are reduced, and sealing performance is improved. A tapered surface, in which an clearance between the tapered surface and an inner peripheral surface of a mounting hole of the engine head narrows from an engine bore side towards an atmospheric side, is disposed at a groove bottom of an attachment groove of the injector, and an abutment portion that abuts against the tapered surface is disposed at the combustion gas seal for injectors.

REFERENCES:
patent: 3244377 (1966-04-01), Roosa
patent: 3750960 (1973-08-01), Back et al.
patent: 57-54647 (1982-03-01), None
patent: 60-178697 (1985-11-01), None
patent: 1-176747 (1989-12-01), None
patent: 05-240356 (1993-09-01), None
patent: 08-042700 (1996-02-01), None
patent: WO02/12717 (2002-02-01), None

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