ROTARY ELECTRIC MACHINE
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United States of America
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Issued Date -
Nov 21, 2024
app pub date -
Oct 25, 2022
filing date -
Oct 25, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
A rotary electric machine includes a stator including teeth around which coils are wound, a rotor including a shaft of a hollow shape and a core member around which field windings are wound, the core member being coaxially fixed to the shaft, the rotor being disposed coaxially with the stator with a gap provided radially between the rotor and the stator, and a coolant flow passage structure communicating with a pump that force-feeds a liquid coolant, in which the field windings include coil turns located at axial ends of the rotor, the coolant flow passage structure includes a first coolant flow passage communicating with the interior of the shaft, and the first coolant flow passage extends radially outward from the shaft, passing axially inside the coil turns, and has a discharge opening radially facing the stator at a radially outer end.
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