Aluminum alloy valve lifter with sprayed coating and method of p

Details Aluminum alloy valve lifter with sprayed coating and method of p Aluminum alloy valve lifter with sprayed coating and method of p

1989-02-28

1990-03-20

Wolfe, Willis R.

Internal-combustion engines

Poppet valve operating mechanism

Tappet

123 9048, F01L 114

Patent

active

049091980

ABSTRACT:
An aluminum alloy valve lifter comprises a valve lifter body made of Al-Si (5-20%) type alloy, having silicon average grain diameter of 2 to 40 micrometers, and consisting of a cylindrical portion and a disc portion; an Fe-C type sprayed coating formed on the peripheral surface of the cylindrical portion, containing 0.1% or more of carbon and having a hardness of 300 Hv or more; a wear-resistant chip fixed on the underside of the disc portion; and an adjusting shim set on the upper side of the disc portion.

REFERENCES:
patent: 3545415 (1970-12-01), Mori
patent: 3628514 (1971-12-01), Phillips
patent: 4182299 (1980-01-01), Earle et al.
patent: 4230491 (1980-10-01), Behnke
patent: 4430970 (1984-02-01), Holtzberg et al.
85-15251 11/20/85, Journal of Technical Disclosure.

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