Valve timing controller
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United States of America Patent
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Oct 6, 2015
Grant Date -
Jul 17, 2014
app pub date -
Sep 26, 2011
filing date -
Sep 26, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A valve timing controller includes: a driving-side rolling body configured to rotate synchronously with an engine crankshaft; a driven-side rolling body configured to rotate in a unified manner with a camshaft for opening/closing an engine valve relative to the driving-side rolling body; an advance chamber, and a retard chamber; a torsion spring disposed in a space formed between a front plate or a rear plate of the driving-side rolling body and the driven-side rolling body and configured to bias at all times the driving-side rolling body and the driven-side rolling body in the advance direction or the retard direction; and a first cylindrical portion provided in the front plate or the rear plate and a second cylindrical portion provided in the driven-side rolling body, the first and second cylindrical portions being insertable into each other in an axial direction.
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