Switchable coupling, in particular for passenger vehicle auxiliary assemblies
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United States of America Patent
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Aug 18, 2015
Grant Date -
Nov 14, 2013
app pub date -
Nov 15, 2011
filing date -
Nov 16, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A switchable coupling, in particular for vehicle auxiliary assemblies, is provided. The coupling includes an actuating system actuated electrically, mechanically, pneumatically or hydraulically between a driving element and an output element, and a switching element movable between switching start and end positions counter to the force of one or more resetting elements upon actuation of the actuating system. In the end position, the switching element connects the driving and output elements such that the output element and an auxiliary coupling connected thereto rotate with the driving element. After deactuation, locking bodies located on the auxiliary coupling produce an connection between the driving and output elements which continues to conduct torque between the driving and output elements. The connection is interrupted only when the rotational speed of the driving element falls below a limit value. The coupling does not require a permanent supply of power in the open or closed state.
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