Lower guide valve seal

Details Lower guide valve seal Lower guide valve seal

1994-08-22

1995-10-24

Yuen, Henry C.

Internal-combustion engines

Valve

Reciprocating valve

1231886, F01L 308, F01L 302

Patent

active

054601398

ABSTRACT:
A valve stem sealing system for an internal combustion engine has a valve guide and an elastomeric valve seal disposed therein. The valve guide is substantially cylindrical in shape and has a longitudinal axis and first and second ends. The valve guide also has a thermal insulating element defining the second end and an internal circumferential groove proximate to the second end. The elastomeric valve seal is disposed in the circumferential groove.

REFERENCES:
patent: 2157867 (1939-05-01), Robertson et al.
patent: 2418674 (1947-04-01), Steiner
patent: 2906255 (1959-09-01), Bunce
patent: 3162185 (1964-12-01), Knoblock
patent: 3265052 (1966-08-01), Goloff
patent: 3577972 (1971-05-01), Moray
patent: 4706967 (1987-11-01), Ochsner
patent: 4834037 (1989-05-01), Lafever
patent: 5062397 (1991-11-01), Larson

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