Valve opening/closing timing control apparatus
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United States of America Patent
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Oct 2, 2018
Grant Date -
Jun 8, 2017
app pub date -
Dec 8, 2016
filing date -
Dec 8, 2015
priority date (Note) -
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Abstract
A valve opening/closing timing control apparatus includes: a driving side rotational body synchronously rotating with a crankshaft of an internal combustion engine; a driven side rotational body arranged in the driving side rotational body to share a rotational axis therewith and integrally rotating with a camshaft; advanced angle and retarded angle chambers defined between the driving side and driven side rotational bodies; a lock mechanism maintaining a relative rotational phase between the driving side and driven side rotational bodies by separately biasing first and second lock members to be engaged with first and second recesses; and a fluid controller releasing the locked state by supplying a hydraulic fluid to the first and second recesses, and controlling the relative rotational phase by supplying and discharging the hydraulic fluid to the advanced angle and retarded angle chambers.
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