Valve control for an internal combustion engine

Details Valve control for an internal combustion engine Valve control for an internal combustion engine

1996-12-23

1998-03-31

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9039, F01L 1300

Patent

active

057326690

ABSTRACT:
An internal combustion engine has a camshaft with control cams which act on respective valves through a transmission member whose contact path on the cam side is variable in its position relative to the control cam via a control device for changing the valve opening period with a valve lift that is essentially constant. To achieve exact control, the contact path is formed on a roller, which is forcibly controlled relative to the drag lever in synchronization with the camshaft, as an intermediate element between the control cams and the drag lever.

REFERENCES:
patent: 2131755 (1938-10-01), Roan
patent: 2266077 (1941-12-01), Roan
patent: 2851851 (1958-09-01), Smith
patent: 2880712 (1959-04-01), Roan
patent: 4138973 (1979-02-01), Luria
patent: 4469056 (1984-09-01), Tourtelot, Jr. et al.
patent: 4530318 (1985-07-01), Semple
patent: 4572118 (1986-02-01), Baguena
patent: 4714057 (1987-12-01), Wichart
patent: 5189998 (1993-03-01), Hara

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