ELECTRIC MOTOR SYSTEM, TURBO COMPRESSOR, AND REFRIGERATION DEVICE
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United States of America Patent
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Issued Date -
Jan 4, 2024
app pub date -
Sep 18, 2023
filing date -
Mar 22, 2021
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Abstract
An electric motor system includes a drive shaft configured to rotationally drive a load, a bearingless motor and a radial magnetic bearing arranged side by side in an axial direction of the drive shaft, and a thrust magnetic bearing disposed between the bearingless motor and the radial magnetic bearing. A radial load on the drive shaft is supported in a non-contact manner by the bearingless motor and the radial magnetic bearing.
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