Overrunning Alternator Decoupler Pulley with Bare Wire Spring and Grease Lubrication
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United States of America Patent
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app pub date -
Mar 12, 2009
filing date -
Jul 26, 2002
priority date (Note) -
Abandoned
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Abstract
A decoupler assembly is provided for a system that employs an endless power transmitting element. The decoupler includes a one-way clutch with a wrap spring and a torsion spring that are disposed between a pulley, which is engaged to the endless power transmitting element, and a hub. The one-way clutch permits overrunning of a driven or output one of the pulley and the hub, whereas the torsion spring stores and releases energy to attenuate the response of the one-way clutch in a manner that provides improved durability of an interface between the wrap spring and the pulley.
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