Variable compression ratio device for internal combustion engine
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United States of America Patent
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Feb 21, 2017
Grant Date -
Jun 25, 2015
app pub date -
Dec 23, 2014
filing date -
Dec 25, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A variable compression ratio device for an internal combustion engine includes: a connecting rod, having a small end and a large end, wherein a support hole formed at the small end is pivotally supported by a support shaft of a piston that reciprocates in a cylinder, and a support hole formed at the large end is pivotally supported by a support shaft of a crankshaft; an eccentric sleeve that is rotatably installed between the support hole of the small end or the support hole of the large end and the support shaft, and displaces a center axis of the support hole of the small end or a center axis of the support hole of the large end with respect to a center axis the support shaft; and an actuator that drives and rotates the eccentric sleeve.
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