Valve timing mechanisms

Details Valve timing mechanisms Valve timing mechanisms

1982-12-16

1985-06-18

Feinberg, Craig R.

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9031, 464 2, F01L 134

Patent

active

RE0319171

ABSTRACT:
A variable valve timing mechanism for an internal combustion engine including at least one valve-actuating camshaft driven from a crankshaft is described. The valve timing mechanism comprises a movable member which is arranged in use to be rotatable by the crankshaft and movable in translation relative to the camshaft in dependence upon an engine operating condition such as engine load or speed. The movable member is connected to the crankshaft by an eccentric linkage such that movement of the movable member relative to the camshaft varies the angular position of the camshaft relative to the crank and also varies the rate of angular movement of the camshaft, thereby varying the valve timing.

REFERENCES:
patent: 2279413 (1942-04-01), Read
patent: 2977943 (1961-04-01), Lieberherr
patent: 3502059 (1970-03-01), Davis
patent: 3516394 (1970-06-01), Nichols
patent: 3633555 (1972-01-01), Raggi

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