Valve for an internal combustion engine

Details Valve for an internal combustion engine Valve for an internal combustion engine

1982-09-30

1985-04-30

Lazarus, Ira S.

Internal-combustion engines

Valve

Valve head cooperates with manifold

291567R, 251337, F01L 310

Patent

active

045137013

ABSTRACT:
A valve of an internal combustion engine in which for purposes of increasing the strength within the area of the annular groove for the conical pieces retaining the spring plate for the valve springs, the corners of the annular groove are rounded-off with a relatively small radius which passes over into the cylindrical part of the annular groove by way of a larger radius; the upper portion of the valve stem is provided with an outer layer which is induction-hardened and which extends up to within the clamping area of the conical pieces.

REFERENCES:
patent: 2450803 (1948-10-01), Johnson
patent: 2745777 (1956-05-01), Clarke
patent: 3033518 (1962-05-01), Sampietro
patent: 3710773 (1973-01-01), Piech et al.
patent: 4073474 (1978-02-01), Hashimoto et al.
"Nitriding the Austenite Steels Improves Wear Resistance", I. A. Binder, American Machinist, Sep. 14, 1944, pp. 102-103.

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