Switchable valve actuating mechanism
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United States of America Patent
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Jun 21, 2011
Grant Date -
Jul 1, 2010
app pub date -
Jul 26, 2006
filing date -
Aug 8, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A valve actuation device may comprise a camshaft including first and second cams, the second cam having a larger lobe than the first cam. A valve lever includes a first follower component or surface adapted to follow the first cam and a second follower component or surface adapted to follow the second cam. The second follower component or surface may be mounted on or defined by an eccentrically-disposed device, which is rotatable relative to the first follower component or surface. When the rotatability of the second follower component or surface is locked by a latching device, the second follower surface translates the contour of the second cam into actuation of an engine valve and, when the second follower component or surface is freely rotatable, the first follower surface translates the contour of the first cam into actuation of the engine valve.
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