Mechanical direct-acting tappet with roller follower

Details Mechanical direct-acting tappet with roller follower Mechanical direct-acting tappet with roller follower

1996-10-15

1997-10-14

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

Tappet

123 9033, 123 9052, F01L 114, F01L 120

Patent

active

056760981

ABSTRACT:
A mechanical direct-acting bucket-type tappet which includes a sheet metal body, a plastic block within the body and having a cam-contacting roller received therein, a metal disc received within a seat formed in the block and operable to contact an engine valve, and opposed fins formed on the body in straddling relation to the roller and extending above the cam contacting surface of the roller such that they are in straddling relation to the engine cam.

REFERENCES:
patent: 5186130 (1993-02-01), Melchior
patent: 5327860 (1994-07-01), Kruger
patent: 5343833 (1994-09-01), Shirai
patent: 5365897 (1994-11-01), Speil et al.
patent: 5553512 (1996-09-01), Harimoto
patent: 5566652 (1996-10-01), Deppe

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