Tappet with ceramic seat plate

Details Tappet with ceramic seat plate Tappet with ceramic seat plate

1991-07-19

1992-12-08

Cross, E. Rollins

Internal-combustion engines

Poppet valve operating mechanism

Tappet

123 9051, 2988843, 74569, F01L 114

Patent

active

051688417

ABSTRACT:
A tappet for an internal combustion engine comprises a tappet main body and a ceramic seat plate. The tappet main body is constituted by axially separated first and second parts which are made of different metallic materials. The first part is for installation in a hole of a cylinder block for sliding therein. The second part is for installation between a push rod and a cam. The metallic material for the second part is more wear-resistant than that of the first part. The ceramic seat plate is brazed to the second part, and the first and second parts are joined together by welding such as electron beam welding, laser beam welding, etc.

REFERENCES:
patent: 3683876 (1972-08-01), Lesher
patent: 4317433 (1982-03-01), Fuhrmann
patent: 4366785 (1983-01-01), Goloff et al.
patent: 4508067 (1985-04-01), Fuhrmann
patent: 4768476 (1988-09-01), Behnke et al.
patent: 4909198 (1990-03-01), Shiraya et al.
patent: 5060607 (1991-10-01), Taniguchi

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