Device to combine the motions of two camlobes differentially pha

Details Device to combine the motions of two camlobes differentially pha Device to combine the motions of two camlobes differentially pha

1990-11-02

1991-10-01

Wolfe, Willis R.

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9027, F01L 134

Patent

active

050523503

ABSTRACT:
A mechanism for combining, so as to reconcile in a dynamically acceptable manner, the valve actuating displacement of a pair of camlobes rotating at variable relative phasings so as to vary the duration of a valve; the mechanism comprising a first lever having a first cam follower to engage a first camlobe, a second cam follower to engage a second camlobe, and a fulcrum to rotatably engage a means to actuate a valve; the means to actuate a valve comprising variously i) a bucket tappet having a fulcrum to rotatably locate the first lever, ii) a second lever rotating about a fulcrum, having a fulcrum to locate rotatably the first lever, and extension/s to engage operatively a valve/s.

REFERENCES:
patent: 1885796 (1932-11-01), Boulet
patent: 4768475 (1988-09-01), Ikemura

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