Variable valve timing system for internal combustion engine

Details Variable valve timing system for internal combustion engine Variable valve timing system for internal combustion engine

1976-11-11

1980-01-08

Schwadron, Martin P.

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9015, 123 9018, 123 9039, F01L 124

Patent

active

041822897

ABSTRACT:
A valve operating mechanism comprising a valve, a cam, a cam shaft for rotating the cam about an axis, a rocker lever rotatably mounted about a rocker lever shaft. The rocker lever is axially movable along the rocker lever shaft. The cam is tapered in the longitudinal direction of the axis and has a uniform cross sectional shape. The rocker lever has an arm formed with a surface engaging the cam and an opposite arm provided with means for engaging the end of a valve stem of the valve.

REFERENCES:
patent: 2397511 (1946-04-01), Schreck
patent: 2678641 (1954-05-01), Ryder
patent: 2823655 (1958-02-01), Repko
patent: 2851023 (1958-09-01), Durkan
patent: 2880712 (1959-04-01), Roan
patent: 3730150 (1973-05-01), Codner, Jr.
patent: 3945355 (1976-03-01), Calviac

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