Poppet valve and method of manufacturing it

Details Poppet valve and method of manufacturing it Poppet valve and method of manufacturing it

1996-03-18

1998-09-01

Chambers, A. Michael

Fluid handling

Processes

Cleaning, repairing, or assembling

251368, 1231883, F01L 310

Patent

active

057996830

ABSTRACT:
A poppet valve in an internal combustion engine comprises a valve head and a valve stem. On a valve face of the valve head, a hardened layer of dendrites in which crystals are directed from the inside to the surface is formed, thereby increasing wear resistance of the valve face without cladding.

REFERENCES:
patent: 4004889 (1977-01-01), Gale et al.
patent: 4182299 (1980-01-01), Earle et al.
patent: 4235418 (1980-11-01), Natalizia
patent: 4729421 (1988-03-01), Schatz
patent: 4737201 (1988-04-01), Larson
patent: 5370364 (1994-12-01), Kenmoku et al.

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