ELECTRIC MACHINE HAVING VENTURI EFFECT COOLING ENHANCEMENT
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United States of America Patent
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Issued Date -
Feb 12, 2015
app pub date -
Aug 7, 2013
filing date -
Aug 7, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A rotary electric machine through which cooling air is passed during machine operation, having a frame air inlet, a frame air outlet, and a first airflow space from which a first portion of cooling air is expelled through the frame air outlet. A cover defines a second airflow space from which a second portion of cooling air is drawn through a cover air outlet and expelled with the first portion of cooling air through the frame air outlet, movement of the second portion of the cooling air through the second airflow space and the cover air outlet being induced by a venturi effect responsive to movement of the first portion of cooling air past the cover air outlet. Also, methods of moving cooling air through a rotary electric machine.
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