Internal-combustion engines – Valve – Valve head cooperates with manifold
Patent
1984-01-31
1984-11-27
Feinberg, Craig R.
Internal-combustion engines
Valve
Valve head cooperates with manifold
291567R, F01L 308
Patent
active
044845472
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.
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Binder, I. A., "Nitriding the Austenitic Steels Improves Wear Resistance", American Machinist, Sep. 14, 1944, pp. 102-104.
Feinberg Craig R.
Wolfe W. R.
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