TURBO COMPRESSOR COMPRISING BEARING COOLING CHANNEL

    公开(公告)号:US20240301895A1

    公开(公告)日:2024-09-12

    申请号:US18277419

    申请日:2022-01-20

    发明人: Kyeong Su KIM

    摘要: Provided is a turbo compressor including a compressed gas inlet through which a gas is sucked in, an impeller for compressing the gas introduced through the compressed gas inlet, a compressed gas outlet through which the gas compressed by the impeller is discharged to the outside, a compression unit including a compressed gas channel connected from the compressed gas inlet to the compressed gas outlet, a motor including a rotating shaft having an end coupled to the impeller, to rotate the impeller, a housing including a motor accommodation space for accommodating the motor, a cooling air channel provided to pass through the motor accommodation space and formed to circulate a cooling gas accommodated therein, a cooling water channel formed to circulate a cooling liquid capable of cooling the housing, and thrust bearings disposed at an end of the rotating shaft, wherein the cooling water channel includes bearing cooling water channels disposed within a predetermined distance from the thrust bearings to cool the thrust bearings. According to the present invention, the thrust bearings supporting the rotating shaft and the cooling gas accommodated in front air channels adjacent to the bearing cooling water channels may be very rapidly cooled.

    Thrust-balancing wet gas compressor

    公开(公告)号:US12085082B2

    公开(公告)日:2024-09-10

    申请号:US17582567

    申请日:2022-01-24

    IPC分类号: F04D19/02 F04D29/051

    CPC分类号: F04D19/024 F04D29/051

    摘要: A contra-rotating compressor includes a first shaft assembly disposed in a housing, the first shaft assembly including an outer shaft, and a first plurality of impellers coupled to the outer shaft, wherein the outer shaft includes a final stage that includes a final impeller of the first plurality of impellers, a second shaft assembly disposed in the housing and rotatable about the longitudinal axis, the second shaft assembly including a second plurality of impellers, a first pair of annular seals between the final stage and an inner surface of the housing, the pair of annular seals being configured to permit relative rotation between the final stage and the housing, and a third annular seal positioned between the outer surface of the final stage and an inner surface of the second shaft assembly, the third annular seal configured to permit contra-rotation between the final stage and the second shaft assembly.

    Centrifugal compressor and refrigeration system

    公开(公告)号:US11965515B2

    公开(公告)日:2024-04-23

    申请号:US17839734

    申请日:2022-06-14

    发明人: Wei Zhang

    摘要: A centrifugal compressor, including: a housing; a motor assembly disposed in the housing and a motor cavity and a motor shaft located in the motor cavity, the motor shaft having a first end and a second end extending from the motor cavity; a first impeller assembly located at the first end of the motor shaft and provided with a first labyrinth sealing mechanism; a second impeller assembly located at the second end of the motor shaft and provided with a second labyrinth sealing mechanism; a first gas bearing assembly provided between the motor cavity and the first impeller assembly; and a second gas bearing assembly provided between the motor cavity and the second impeller assembly; wherein the first labyrinth sealing mechanism is kept in gas communication with the first gas bearing assembly, and the second labyrinth sealing mechanism is kept in gas communication with the second gas bearing assembly.

    ROTOR INTEGRATED AXIAL FLUX ELECTRIC MOTOR
    6.
    发明公开

    公开(公告)号:US20240060499A1

    公开(公告)日:2024-02-22

    申请号:US17892687

    申请日:2022-08-22

    摘要: An assembly for use in an aircraft includes a housing having an inlet and an outlet and a flow path for an airflow extends between the inlet and the outlet. The assembly additionally includes a rotatable portion including a rotor mounted within the housing between the inlet and the outlet along the flow path. The rotor has a body including a first side facing the inlet, a second opposite side, and a plurality of impeller blades protruding from the first side. An axial flux electric motor includes a motor rotor having at least one first flux element and a motor stator. The at least one first flux element is integrated into the rotatable portion and the motor stator is remote from the flow path.

    CENTRIFUGAL COMPRESSOR
    10.
    发明公开

    公开(公告)号:US20230204037A1

    公开(公告)日:2023-06-29

    申请号:US18079592

    申请日:2022-12-12

    摘要: A centrifugal compressor includes a compressor impeller that compresses air, a motor rotating the compressor impeller, and a housing including an impeller chamber, a motor chamber, and an inlet from which the air is drawn into the impeller chamber. The motor includes a stator and a rotor including a tubular member, a magnetic body, and a first shaft member and a second shaft member. The rotor includes an axial passage, a radial passage, and a connecting rod connecting the first shaft member with the second shaft member and forming a gap serving as a part of the axial passage. The housing includes a discharge port from which the air is discharged to an outside of the housing. The air outside the housing is introduced from the inlet into the motor chamber through the axial passage and the radial passage to cool the magnetic body.