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    SCREW COMPRESSOR WITH EXTERNAL MOTOR ROTOR
    1.
    发明申请
    SCREW COMPRESSOR WITH EXTERNAL MOTOR ROTOR 有权

    公开(公告)号：US20210172439A1

    公开(公告)日：2021-06-10

    申请号：US17048019

    申请日：2019-04-25

    Applicant: Carrier Corporation

    Inventor： Amit Vaidya

    IPC: F04C18/16 ,  F04C29/02

    Abstract: A screw compressor includes a housing, a first rotor rotatable about a first axis relative to the housing, and a second rotor rotatable about a second axis relative to the housing. The second rotor is enmeshed with the first rotor. A motor is embedded within the first rotor such that the motor is coaxial with the first axis.

    Screw Compressor
    4.
    发明申请
    Screw Compressor 审中-公开

    公开(公告)号：US20170122318A1

    公开(公告)日：2017-05-04

    申请号：US15315551

    申请日：2015-06-01

    Applicant: Carrier Corporation

    Inventor： Amit Vaidya

    IPC: F04C18/16 ,  F25B1/047 ,  F04C29/12 ,  F04C29/00 ,  F04C18/20

    Abstract: A compressor (22) comprises a housing (50) having a first port (26) and a second port (28). A male rotor (52) has a working portion (64) having a plurality of lobes (110) of a count (NM) and at least a first shaft portion (62) protruding beyond a first end (68) of the male rotor working portion and mounted for rotation about a first axis (500). A female rotor (54) has a working portion (66) having a plurality of lobes (112) of a count (NF) and mounted for rotation about a second axis (502) so as to be enmeshed with the male rotor working portion. An electric motor (56) is within the housing and has a stator (58) and a rotor (60) mounted to the first shaft portion. The compressor has no additional compressor rotors. The lobe count of the male rotor is less than the lobe count of the female rotor. A combined lobe count (NM+NF) is at least fifteen.

    Direct drive refrigerant screw compressor with refrigerant lubricated bearings
    5.
    发明授权
    Direct drive refrigerant screw compressor with refrigerant lubricated bearings 有权

    公开(公告)号：US11959484B2

    公开(公告)日：2024-04-16

    申请号：US16973710

    申请日：2020-05-20

    Applicant: Carrier Corporation

    Inventor： Yifan Qiu ,  David M. Rockwell ,  Amit Vaidya

    IPC: F04C29/02 ,  F04C18/16 ,  F25B31/00

    CPC classification number: F04C29/02 ,  F04C18/16 ,  F25B31/002 ,  F04C2240/20 ,  F04C2240/30 ,  F04C2240/50

    Abstract: Disclosed is a direct-drive refrigerant screw compressor, having: a housing; a compression chamber in the housing; a pair of rotors, each rotor of the pair of rotors being rotationally disposed in the compression chamber and including an outer surface with a screw-geared profile; wherein, for each rotor, the compressor includes: a plurality of bearing packs disposed within a respective plurality of bearing chambers; a working fluid disposed within each of the plurality of bearing chambers, the working fluid providing oil-free lubrication to the plurality of bearing packs; a plurality of bearing lubrication ports extending through the housing and into each of the plurality of bearing chambers, and configured for injecting the working fluid into each of the plurality of bearing chambers when the compressor is running.

    Screw compressor with external motor rotor
    7.
    发明授权
    Screw compressor with external motor rotor 有权

    公开(公告)号：US11519409B2

    公开(公告)日：2022-12-06

    申请号：US17048019

    申请日：2019-04-25

    Applicant: Carrier Corporation

    Inventor： Amit Vaidya

    IPC: F04C18/16 ,  F04C29/02

    Abstract: A screw compressor includes a housing, a first rotor rotatable about a first axis relative to the housing, and a second rotor rotatable about a second axis relative to the housing. The second rotor is enmeshed with the first rotor. A motor is embedded within the first rotor such that the motor is coaxial with the first axis.

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