Variable ratio rocker assembly

Details Variable ratio rocker assembly Variable ratio rocker assembly

2007-01-03

2008-05-06

Eshete, Zelalem (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090390, C123S090410

Reexamination Certificate

active

07367299

ABSTRACT:
A variable ratio rocker assembly for increasing the amount of air entering a combustion cylinder. The rocker assembly includes a rocker arm adapted to move a valve between a closed position and an open position, a radiused follower adapted to interact with a portion of the rocker arm, and a push rod for moving the follower in response to a camshaft. The follower causes the rocker arm to move the valve between the closed position and the open position.

REFERENCES:
patent: 2880711 (1959-04-01), Roan
patent: 4387673 (1983-06-01), Aoyama et al.
patent: 5560265 (1996-10-01), Miller
Taylor, “The Internal-Combustion Engine in Theory and Practice,” vol. 1, p. 178 (2nd edition, The MIT Press 1998).
Ferguson, “Internal Combustion Engines,” p. 14 and 247 (John Wiley & Sons 1986).

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