Tappet in an internal combustion engine

Details Tappet in an internal combustion engine Tappet in an internal combustion engine

1993-03-25

1994-03-01

Cross, E. Rollins

Internal-combustion engines

Poppet valve operating mechanism

Tappet

123 9048, 74569, F01L 114, F01L 304

Patent

active

052898040

ABSTRACT:
A tappet for use in an internal combustion engine comprises Al-alloy base material and a sprayed layer on the outer surface which is slidable with a cylinder head. The sprayed layer is made of Fe-alloy which comprises not more than 0.1% by weight of C, 0.6-2.0% by weight of Mn and the balance of Fe, thereby providing high hardness, high toughness and low cost. The sprayed layer may further contain 0.1-1.0% by weight of Si.

REFERENCES:
patent: 2932290 (1960-04-01), Christensen
patent: 4873150 (1989-10-01), Doi et al.
patent: 4876996 (1989-10-01), Mayer et al.
patent: 4909198 (1990-03-01), Shiraya et al.
Japanese Utility Model No. 62-138803, published Sep. 1, 1987.
Japanese Utility Model No. 63-174508, published Nov. 11, 1988.

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