Rotating electric machine
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United States of America Patent
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May 1, 2018
Issued Date -
N/A
app pub date -
Aug 31, 2015
filing date -
Apr 28, 2015
priority date (Note) -
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Abstract
A coolant flow path structure which cools a rotor is configured of a first coolant flow path forming a radial coolant flow path of the rotor and a second coolant flow path communicating with the first coolant flow path and forming an axial coolant flow path of the rotor, and a negative pressure structure, which brings an exist of the coolant flow path structure into a negative pressure as a result of a rotation of the rotor, is provided at the exit of the second coolant flow path.
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