Valve operating apparatus

Details Valve operating apparatus Valve operating apparatus

1992-04-24

1993-02-02

Cross, E. Rollins

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9039, F01L 134

Patent

active

051830159

ABSTRACT:
A valve operating apparatus for an engine is disclosed. The apparatus includes a rocker arm operated by a first cam and a free cam follower operated by a second cam. The rocker arm has an integral barrel having a lost motion mechanism. A prop is slidably received by the free cam follower for movement between a first position in which the prop supports the free cam follower on the lost motion mechanism and a second position in which the prop supports the free cam follower on the barrel. A hydraulically operated piston moves the prop.

REFERENCES:
patent: 4612884 (1986-09-01), Ajiki et al.
patent: 4768467 (1988-09-01), Yamada et al.
patent: 5020488 (1991-06-01), Watanabe
patent: 5042437 (1991-08-01), Sakuragi et al.
patent: 5046462 (1991-09-01), Matayoshi et al.
patent: 5080054 (1992-01-01), Nakamura
patent: 5085182 (1992-02-01), Nakamura et al.

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