DUAL MODE COOLING PUMP WITH OVER-RUNNING CLUTCH
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United States of America Patent
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Sep 1, 2016
app pub date -
Feb 28, 2015
filing date -
Feb 28, 2015
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Abstract
System for circulating the flow of coolant in a vehicle engine cooling system. A dual mode mechanism has an electric motor and an overrunning clutch mechanism which selectively rotate an impeller at a desired speed to circulate the coolant. The impeller is rotated by the electric motor, but can also be selectively rotated by the overrunning clutch mechanism. An electronic control can be utilized to selectively control the electric motor and overrunning clutch, together with control logic.
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