Valve driving apparatus

Details Valve driving apparatus Valve driving apparatus

1997-05-12

1998-11-10

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9048, 123 9039, F01L 112, F01L 1300

Patent

active

058328890

ABSTRACT:
A valve driving apparatus includes a cam, a force transfer member transferring force of the cam to a valve, and a shim interposed between the cam and the force transfer member and movable on the force transfer member. The shim has a first portion, a part of which first portion is always in contact with the force transfer member while the shim is being moved on the force transfer member in accordance with a motion of the cam.

REFERENCES:
patent: 3023870 (1962-03-01), Udelman
patent: 3915129 (1975-10-01), Rust et al.
patent: 4850311 (1989-07-01), Sohn
patent: 5094197 (1992-03-01), Rosa
patent: 5159906 (1992-11-01), Fontichiaro et al.
patent: 5367991 (1994-11-01), Asai et al.
patent: 5381764 (1995-01-01), Fukuma et al.
patent: 5570665 (1996-11-01), Regueiro
patent: 5606942 (1997-03-01), Tsuzuku et al.

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