ROTOR ASSEMBLY AND METHOD OF COOLING
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United States of America Patent
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Issued Date -
Aug 26, 2021
app pub date -
May 10, 2021
filing date -
Mar 22, 2019
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status (Latency Note)
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Abstract
An electric machine rotor assembly includes a rotor core defining a rotor axis. Windings are seated in the rotor core. A plurality of wedges circumferentially spaced apart around the rotor core relative to the rotor axis. Each rotor core extends axially and separates between two respective portions of the windings. A supply end plate is mounted at a first axial end of the rotor core. A return end plate is mounted at a second axial end of the rotor core opposite the first axial end. A flow path for coolant fluid extends through the supply end plate into the wedges, through the wedges and into the return end plate, and through the return end plate.
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