Isolator with double acting spring system with reduced noise
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United States of America Patent
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Oct 24, 2017
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app pub date -
May 23, 2014
filing date -
May 23, 2013
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Abstract
An isolator is provided for use with an engine and in particular an engine that is assisted or started by MGU (Motor-Generator Unit) or a motor through an endless drive member. It comprises a double acting spring system for isolating crankshaft pulley from torsion vibration at the crankshaft, and in extreme conditions, such as during engine startup and accelerations or decelerations of the engine crankshaft relative to the pulley and when isolator operates in an “engine-driven” mode with the engine crankshaft is driven by the belt.
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