Phase changing device for automobile engine
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United States of America Patent
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-
Mar 5, 2013
Grant Date -
Jan 6, 2011
app pub date -
Feb 24, 2009
filing date -
Mar 3, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A phase changing device for automobile engine, the device comprising curved first guide grooves formed in the control rotor, each groove skewed with respect to a circumference of a circle centered at the rotational axis; oblique guide grooves each groove formed in the middle rotor and extending at an angle with respect to a radius crossing the groove; second guide grooves formed in the drive rotor and skewed with respect to the circumference of a circle centered at the rotational axis, block sections each extending along, and movable in, the respective first guide; first slide members each protruding from the respective block section for engagement with, and for movement in, the respective skewed guide groove; and phase varying members each having a second slide member that extends through an escape groove formed in the middle rotor and engages the respective second guide groove to move in the second guide groove.
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