Engine valve operating system for internal combustion engine

Details Engine valve operating system for internal combustion engine Engine valve operating system for internal combustion engine

1983-08-15

1986-02-04

Cline, William R.

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9044, F01L 134

Patent

active

045678618

ABSTRACT:
An engine valve operating system for an internal combustion engine comprises a rocker arm for transferring valve actuating effect from a driving cam to an engine valve such as an intake or exhaust valve. An elongate lever or fulcrum member is pivoted at its one end section and disposed in fulcrum contact with the side of the rocker arm opposite to the driving cam. Additionally, a hydraulic actuator is provided to control the pivotal location of the lever and therefore has a movable end section which is in contact with the other end section of the lever and movable in accordance with an engine operating condition, thereby greatly improving control response of the lever while rendering unnecessary a large capacity and sized actuator.

REFERENCES:
patent: 4098239 (1978-04-01), Jarry
patent: 4408580 (1983-10-01), Kosuda et al.
patent: 4414931 (1983-11-01), Burandt
patent: 4438736 (1984-03-01), Hara et al.

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