Rotational coupling device with integrated rotor and brake disc
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United States of America Patent
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-
Mar 17, 2015
Grant Date -
Feb 28, 2013
app pub date -
Aug 24, 2012
filing date -
Aug 25, 2011
priority date (Note) -
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Abstract
A rotational coupling device is provided with an integrated rotor and brake disc to simplify design of the device and remove liquids from the device when used in a wet environment. The rotor is configured for rotation about a rotating hub and includes a first member defining one pole of the rotor and a second member defining a second pole of the rotor and a braking surface. The second member is coupled to the first member, but axially movable relative to the first member. During clutch engagement, an electromagnetic circuit used to engage the clutch urges the second member into engagement with the first member for rotation. When the clutch is disengaged, the second member disengages from the first member to create a fluid flow path between the members and engages a brake plate to halt rotation of the rotor.
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