Valve seat ring

Details Valve seat ring Valve seat ring

1980-04-30

1982-08-31

Feinberg, Craig R.

Internal-combustion engines

Valve

Valve head cooperates with manifold

291567A, F01L 302

Patent

active

043466842

ABSTRACT:
A sintered valve seat ring having excellent resistance to wear, to corrosion and to thermal stresses, and a method for its production. The ring comprises a supporting portion made up of an iron or steel alloy and a facing portion, subject to wear, of a cobalt and/or nickel alloy. The supporting portion comprises up to 30% by weight of the alloy of the facing portion.

REFERENCES:
patent: 2100620 (1937-11-01), Wirrer et al.
patent: 2101970 (1937-12-01), Wissler
patent: 2296460 (1942-09-01), McDonald
patent: 2753858 (1956-07-01), Honeyman et al.
patent: 2753859 (1956-07-01), Bartlett
patent: 3428035 (1969-02-01), Stefan et al.

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