Valve guide and method for making same

Details Valve guide and method for making same Valve guide and method for making same

1980-01-25

1982-08-03

Feinberg, Craig R.

Internal-combustion engines

Valve

Valve head cooperates with manifold

291567R, F01L 308

Patent

active

043422934

ABSTRACT:
A valve guide for the stem of a valve in an internal combustion engine is provided having an inner bore through which the stem of the valve is longitudinally positioned, the inner bore surface of the body being nitrided in order to harden the body about the surface through which the valve stem is slidably positioned. The body is completely formed prior to installation of the body in the engine valve guide bore.

REFERENCES:
patent: 1697083 (1929-01-01), Phillips
patent: 1800340 (1931-04-01), Daisley
patent: 2632235 (1953-03-01), Doyle et al.
patent: 2778352 (1957-01-01), Kimberly
patent: 2813524 (1957-11-01), Brenneke

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