Poppet valve made of ceramics

Details Poppet valve made of ceramics Poppet valve made of ceramics

1988-11-22

1989-11-21

Cross, E. Rollins

Internal-combustion engines

Valve

Valve head cooperates with manifold

291567R, F01L 300

Patent

active

048815004

ABSTRACT:
An inclined surface of a valve head extending between a valve stem and a valve seat contacting portion has an annular portion in the place intermediate between the valve steam and the valve seat contacting portion. The inclined surface is ground at the annular portion only.

REFERENCES:
patent: 3147747 (1964-09-01), Kittlelson
patent: 3349463 (1967-10-01), Kittelson
patent: 4187807 (1980-02-01), Cemenska et al.

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