Embedded permanent magnet rotary electric machine
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United States of America Patent
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Jun 5, 2018
Issued Date -
May 26, 2016
app pub date -
Aug 5, 2013
filing date -
Aug 5, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A permanent magnet 21 is housed in a magnet housing aperture 20, an adhesive is disposed only between an outside wall surface 20a that is positioned on a radially outer side of an inner wall surface of the magnet housing aperture 20 and an outside surface 21a that is positioned on a radially outer side of a surface of the permanent magnet 21 such that the permanent magnet 21 is fixed so as to be closer to the outside wall surface 20a, and a cooling flow channel 23 through which a coolant is made to flow is formed by an inside surface 21b that is positioned on a radially inner side of the surface of the permanent magnet 21 and an inside wall surface 20b that is positioned on a radially inner side of the inner wall surface of the magnet housing aperture 20.
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