Continuous variable valve lift device
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United States of America Patent
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Aug 9, 2011
Grant Date -
Nov 12, 2009
app pub date -
Aug 18, 2008
filing date -
May 8, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A continuous variable valve lift (CVVL) device opens and closes a valve by pressing a rocker arm through a rotational force transmitted from a drive cam. The CVVL device includes a drive arm, which is pivotably mounted such that one side thereof presses a rocker arm, a variable arm, which is pivotably mounted, and pushes and pivots the drive arm when pivoted, and a transmission arm, which is coupled with a transmission roller, which is located between the drive cam and the variable arm, at one end thereof, and is pivoted such that a position where the transmission roller comes into contact with both the drive cam and the variable arm is changed.
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