COMPRESSSOR DRIVESHAFT MAGNETIC SUPPORT

    公开(公告)号:US20250027503A1

    公开(公告)日:2025-01-23

    申请号:US18356916

    申请日:2023-07-21

    Abstract: A compressor includes a driveshaft, a bearingless motor, one or more magnetic bearings, and a controller for the bearingless motor. The bearingless motor configured to rotate the driveshaft to compress a working fluid. The one or more magnetic bearings magnetically support the driveshaft when rotating. The controller is configured to adjust magnetic support provided by the bearingless motor to the driveshaft based on operation of the compressor. A method of operating a compressor includes rotating, with a bearingless motor, a driveshaft to compress a working fluid and magnetically supporting, with one or more magnetic bearings, the driveshaft. The method also includes magnetically supporting, with the bearingless motor, the driveshaft in which the magnetic support provided by the bearingless motor is adjusted based on operation of the compressor.

    Cooling fan for refrigerant cooled motor

    公开(公告)号:US11578901B2

    公开(公告)日:2023-02-14

    申请号:US17200083

    申请日:2021-03-12

    Inventor: Joseph M. Heger

    Abstract: An electric motor for a vapor compression system is disclosed. The electric motor is provided with a working fluid. The electric motor includes a housing forming cavity therein. The housing includes a rotor, a stator, and a shaft. The rotor is secured to the shaft and the stator surrounds at least a portion of the rotor. An airgap is formed between the rotor and the stator. An inlet of the housing receives the working fluid and is in fluid communication with the airgap. An outlet of the housing is in fluid communication with the airgap and receives the working fluid from the airgap. The electric motor further includes an impeller that induces flow of the working fluid between the inlet and the outlet.

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