Actuating lever for a valve drive of an internal combustion engi

Details Actuating lever for a valve drive of an internal combustion engi Actuating lever for a valve drive of an internal combustion engi

1997-04-25

1998-07-14

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

Rocker

123 9036, 74559, F01L 118

Patent

active

057788421

ABSTRACT:
A valve actuating lever for a valve drive of an internal combustion engine, includes a main body formed therein with a bore and a shaft received in the bore of the main body and defining a pivot axis about which the main body pivots, to thereby control up and down motions of a gas exchange valve in response to travel of a cam mechanism. The shaft has an outer surface area formed with tangential undercuts oriented transversely to the pivot axis and formed through non-cutting shaping process.

REFERENCES:
patent: 1699659 (1929-01-01), Fagan
patent: 4401064 (1983-08-01), Nakamura et al.
patent: 4655177 (1987-04-01), Wells et al.
patent: 5125373 (1992-06-01), Yamada et al.
patent: 5186128 (1993-02-01), Murata et al.
patent: 5596958 (1997-01-01), Miller
Patent Abstracts of Japan, 63-18114 A, M-711, Jan. 1988, vol. 12, No. 218.

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