Two speed clutch with viscous system
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United States of America Patent
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Oct 20, 2020
Grant Date -
Mar 15, 2018
app pub date -
Nov 20, 2017
filing date -
Jun 9, 2014
priority date (Note) -
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Abstract
A clutch device for a clutch system has an input member that rotates at a first speed. A friction drive system is disposed between the input member and an output member. The clutch device is selectively movable by a fluid actuator assembly, between an engaged position in which the friction drive system drives the output member to rotate at the first speed, and a disengaged position in which a viscous drive system rotates the output member at a second speed slower than the first speed. A variable viscous fluid supply assembly includes a viscous fluid storage chamber, a valve, and a valve actuator that selectively drives the valve to move between an open position and a closed position to control an amount of viscous fluid available to the viscous drive system, thereby varying the second speed.
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