LIQUID-COOLED ROTOR MOTOR ASSEMBLY
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United States of America Patent
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Issued Date -
Sep 22, 2016
app pub date -
Dec 14, 2015
filing date -
Mar 16, 2015
priority date (Note) -
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Abstract
A motor rotor assembly for driving an electric vehicle having a gear box includes a rotating shaft, a motor rotor mounted on the rotating shaft, and an axially-arranged channel provided at a middle portion of the rotating shaft. The axially-arranged channel has an inlet and an outlet disposed at opposing ends of the channel. The inlet is connected with a cooling liquid source and the outlet is in fluid communication with the gear box. The cooling liquid enters the inlet from the cooling liquid source, flows through the channel, and flows out the outlet to enter the gear box.
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