Valve gear assembly for an internal-combustion engine

Details Valve gear assembly for an internal-combustion engine Valve gear assembly for an internal-combustion engine

1993-12-30

1994-12-20

Cross, E. Rollins

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9048, 123 9039, F01L 104, F01L 118

Patent

active

053738187

ABSTRACT:
An internal-combustion engine comprises at least two inlet stroke valves per cylinder, the courses of the strokes of these stroke valves being adjustable in different manners. The adjustment takes place by means of an eccentric shaft which displaces the supporting point of a transfer element disposed between each cam and each stroke valve, in which case the two eccentrics assigned to one cylinder are of a different geometry. The transfer element is formed by a valve lever which is supported on the eccentric and is actuated by the cam, which valve lever, in turn, acts upon a rocker lever. The respective contact surfaces are formed by rollers. A further transfer element, which has a crank path, is also described.

REFERENCES:
patent: 3413965 (1968-12-01), Gavasso
patent: 4138973 (1979-02-01), Luria
patent: 4526142 (1985-07-01), Hara
patent: 4572118 (1986-02-01), Baguena
patent: 5018487 (1991-05-01), Shinkai
patent: 5025761 (1991-06-01), Chen
patent: 5111781 (1992-05-01), Kaku et al.
patent: 5119773 (1992-06-01), Schon et al.
patent: 5189998 (1993-03-01), Hara

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