ROTOR HAVING A PLURALITY OF COOLING JETS AND ELECTRIC MOTOR INCLUDING THE SAME
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United States of America
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Issued Date -
Mar 6, 2025
app pub date -
Sep 1, 2023
filing date -
Sep 1, 2023
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status (Latency Note)
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Abstract
An electric motor includes a stator and rotor. The stator includes a stator core defining a stator bore, and a plurality of windings having end turns extending from the stator core. This includes a central region configured to be disposed in the stator bore, and first and second end regions extending from the central region and aligned with the end turns of the plurality of windings. The rotor defines a cooling bore in fluid communication with a low-pressure cooling fluid source and includes a plurality of cooling jets in fluid communication with the cooling bore and disposed in the first and second end regions. The plurality of cooling jets extends radially outward such that each cooling jet is configured to pull cooling fluid through the cooling bore and eject cooling fluid toward the end turns in response to centrifugal force caused by rotation of the rotor within the stator bore.
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