Valve seat for internal combustion engine

Details Valve seat for internal combustion engine Valve seat for internal combustion engine

1998-06-25

2000-07-04

Kamen, Noah P.

Internal-combustion engines

Valve

Valve seat relation

1231883, F01L 300

Patent

active

060823178

ABSTRACT:
A valve seat for an internal combustion engine is provided with a base member in which cobalt-based hard particles are dispersed in a matrix of an iron-based alloy. The matrix of an iron-based alloy comprises (a) carbon in a range of 0.5-1.5 weight %, (b) chromium and/or vanadium in a range of 0.5-10.0 weight % in total and (c) iron as a remainder based on weight of the base member respectively. An amount of the cobalt-based hard particles is in a range of 26-50 weight % based on weight of the base member.

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patent: 5674449 (1997-10-01), Liang et al.
patent: 5784681 (1998-07-01), Purnell et al.
patent: 5834664 (1998-11-01), Aonuma et al.

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