Variable duration valve opening mechanism

Details Variable duration valve opening mechanism Variable duration valve opening mechanism

1988-01-11

1989-06-06

Dolinar, Andrew M.

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9048, F01L 120

Patent

active

048361550

ABSTRACT:
In an internal combustion engine having a cam on a cam shaft and a valve operated thereby, valve opening duration is decreased or increased and valve opening is performed earlier or later by shifting the lifter relative to the line of cam action so that it is acted on earlier or later by the cam.

REFERENCES:
patent: 934762 (1909-09-01), Saurer
patent: 1542354 (1925-06-01), Atsumi
patent: 2851851 (1958-09-01), Smith
patent: 4205634 (1980-06-01), Tourtelot, Jr.
patent: 4469056 (1984-09-01), Tourtelot, Jr. et al.
patent: 4572118 (1986-02-01), Baguena

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