ROTARY ELECTRIC MACHINE APPARATUS
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United States of America Patent
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Issued Date -
May 29, 2014
app pub date -
Nov 25, 2013
filing date -
Nov 26, 2012
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Abstract
A rotary electric machine apparatus includes a first rotary electric machine that includes a first rotor, a first stator and a first housing for containing the first rotor and the first stator, a second rotary electric machine that includes a second rotor, a second stator and a second housing for containing the second rotor and the second stator, a pump that supplies a cooling liquid to the first rotary electric machine and the second rotary electric machine, and a communication pipe that communicates a gas-phase in the first housing and a gas-phase in the second housing so that an internal pressures of the first housing and the second housing are balanced to each other.
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