Valve timing control system for internal combustion engine
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United States of America Patent
Stats
-
May 11, 2004
Grant Date -
Feb 13, 2003
app pub date -
Jul 25, 2002
filing date -
Aug 10, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A valve timing control system includes a driving plate, a lever provided to a camshaft, a radial slot formed in the driving plate, an intermediate rotator arranged rotatable with respect to the driving plate and the camshaft and having a spiral slot, and a link having a base end pivotally coupled to the lever and a front end arranged swingably and including a ball engaged with the spiral slot and a block member engaged with the radial slot. The ball has a center of engagement located on a swinging axis of the front end of the link, producing no moment.
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