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    SCROLL COMPRESSOR
    1.
    发明申请
    SCROLL COMPRESSOR 有权

    公开(公告)号：US20220333598A1

    公开(公告)日：2022-10-20

    申请号：US17721610

    申请日：2022-04-15

    Applicant: LG ELECTRONICS INC.

    Inventor： Byeonghun YU ,  Sanghun SEONG ,  Jinyong JANG ,  Byeongchul LEE

    IPC: F04C18/02 ,  F04C23/00

    Abstract: A scroll compressor is disclosed. The scroll compressor may include a suction guide between a refrigerant suction pipe and a high/low pressure separation plate, and the suction guide may be fastened to a non-orbiting scroll or inserted into a suction guide protrusion that extends from the non-orbiting scroll. Accordingly, suction refrigerant may be partially suctioned into a compression chamber by the suction guide in advance before moving to the high/low pressure separation plate, so as to be prevented from coming into contact with the high/low pressure separation plate, while the suction refrigerant may also partially flow toward a drive motor without being suctioned directly into the compression chamber, so as to cool the drive motor, whereby efficiency of the compressor may be improved and an operation range of the compressor may be expanded.

    MOTOR-OPERATED COMPRESSOR
    2.
    发明申请
    MOTOR-OPERATED COMPRESSOR 审中-公开

    公开(公告)号：US20190316587A1

    公开(公告)日：2019-10-17

    申请号：US16381064

    申请日：2019-04-11

    Applicant: LG ELECTRONICS INC.

    Inventor： Sanghun SEONG ,  Honghee PARK ,  Bumjune SEO ,  Jinyong JANG

    IPC: F04C29/02 ,  F04C18/02

    Abstract: A motor-operated compressor includes a casing having an inner space including a suction space and a discharge space. A first scroll is disposed in the inner space of the casing. A second scroll is configured to orbit in engagement with the first scroll to form a pair of two compression chambers between the first scroll and the second scroll. A rotary shaft is coupled to the second scroll and configured to transfer a rotational force of a driving motor to the second scroll. An intermediate pressure space is formed on one side of the second scroll and in fluid communication with the discharge space. Oil entering the intermediate pressure space from the discharge space forms back pressure supporting the second scroll toward the first scroll, and a portion of the oil flows into the suction space.

    SCROLL COMPRESSOR
    4.
    发明公开
    SCROLL COMPRESSOR 审中-公开

    公开(公告)号：US20240151227A1

    公开(公告)日：2024-05-09

    申请号：US18378203

    申请日：2023-10-10

    Applicant: LG ELECTRONICS INC.

    Inventor： Jinyong JANG ,  Sanghun SEONG ,  Seokhwan MOON ,  Sooho JANG

    IPC: F04C18/02 ,  F04C23/00 ,  F04C28/24 ,  F04C29/00

    CPC classification number: F04C18/0215 ,  F04C18/0292 ,  F04C23/008 ,  F04C28/24 ,  F04C29/0028 ,  F04C29/0035

    Abstract: A scroll compressor is provided that may include a first back pressure unit that allows a refrigerant to flow from a first compression chamber to a back pressure chamber while blocking a reverse flow of the refrigerant, and a second back pressure unit that allows the refrigerant to flow from the back pressure chamber to a second compression chamber while blocking a reverse flow of the refrigerant. The first back pressure unit and the second back pressure unit may be spaced apart from each other in a direction that the compression chambers are formed. This may reduce pressure pulsation in the back pressure chamber. Also, leakage between compression chambers may be suppressed and simultaneously friction loss may be reduced by appropriately adjusting the pressure in the back pressure chamber. This is especially advantageous for enhancing compression efficiency under low load operating conditions (or in a low pressure ratio operation).

    ELECTRIC COMPRESSOR
    5.
    发明申请
    ELECTRIC COMPRESSOR 有权

    公开(公告)号：US20210017992A1

    公开(公告)日：2021-01-21

    申请号：US16704518

    申请日：2019-12-05

    Applicant: LG Electronics Inc.

    Inventor： Junghoon PARK ,  Honghee PARK ,  Bunjune SEO ,  Jinyong JANG

    IPC: F04C29/00 ,  F04C18/02

    Abstract: The present disclosure relates to an electrical compressor, comprising a housing, a compression part, a motor part, a first journal bearing coupled between a frame and a rotating shaft, a second journal bearing coupled between an eccentric part and an orbit scroll, and a ball bearing coupled to another end of the rotating shaft. The compression part comprises a fixed scroll disposed at an internal side of the housing, an orbit scroll configured to compress a refrigerant while orbiting the fixed scroll, and a frame configured to support the fixed scroll. The motor part comprises a rotating shaft comprising an eccentric part coupled to the orbit scroll at one end thereof, a stator disposed at another internal side of the housing, and a rotor rotatably disposed with respect to the stator and configured to rotate around the rotating shaft.

    SCROLL COMPRESSOR
    7.
    发明公开
    SCROLL COMPRESSOR 审中-公开

    公开(公告)号：US20240151228A1

    公开(公告)日：2024-05-09

    申请号：US18381323

    申请日：2023-10-18

    Applicant: LG Electronics Inc.

    Inventor： Seokhwan MOON ,  Sanghun SEONG ,  Jinyong JANG ,  Sooho JANG

    IPC: F04C18/02 ,  F04C29/12

    CPC classification number: F04C18/0215 ,  F04C29/12 ,  F04C2240/30

    Abstract: A scroll compressor is provided that may have a first sealing portion defined between an inner surface of an orbiting wrap and an outer surface of a non-orbiting wrap facing the inner surface of the orbiting wrap in a radial direction, and a second sealing portion defined between an inner surface of the non-orbiting wrap and an outer surface of the orbiting wrap facing the inner surface of the non-orbiting wrap in the radial direction. Further, sealing surfaces where the wraps facing each other are in surface-contact with each other may be formed on at least one of the first sealing portion or the second sealing portion. This may enlarge a sealing area between side surfaces of the wraps facing each other to suppress or prevent leakage of refrigerant suctioned in a compression chamber, thereby improving indicated efficiency and volumetric efficiency.

    MOTOR OPERATED COMPRESSOR
    8.
    发明申请
    MOTOR OPERATED COMPRESSOR 审中-公开

    公开(公告)号：US20190309749A1

    公开(公告)日：2019-10-10

    申请号：US16352111

    申请日：2019-03-13

    Applicant: LG ELECTRONICS INC.

    Inventor： Byungkil YOO ,  Jaesang LEE ,  Jinyong JANG ,  Soonyong CHOI

    IPC: F04C18/02 ,  F04C29/02

    Abstract: A motor operated compressor according to the present invention has a driving motor having a stator and a rotor. A rotation shaft of the motor is coupled to the rotor. The compressor also has a frame, a fixed scroll positioned on one side of the frame, and an orbiting scroll supported on the frame and positioned between the fixed scroll and the frame. The fixed scroll forms a compression chamber together with the orbiting scroll. The driving motor, the fixed scroll, the orbiting scroll, and the frame are positioned within a casing of the compressor. The rotation shaft rotatably passes through the fixed scroll and the frame and is to eccentrically coupled to the orbiting scroll, allowing the orbiting scroll to perform an orbiting motion relative to the fixed scroll. One end portion of the rotation shaft is supported by the fixed scroll while the other end is supported by the casing.

    MOTOR OPERATED COMPRESSOR
    9.
    发明申请
    MOTOR OPERATED COMPRESSOR 审中-公开

    公开(公告)号：US20190242384A1

    公开(公告)日：2019-08-08

    申请号：US16261794

    申请日：2019-01-30

    Applicant: LG ELECTRONICS INC.

    Inventor： Byungkil YOO ,  Honghee PARK ,  Jinyong JANG ,  Jongtae HER

    IPC: F04C29/12 ,  F04C18/02

    CPC classification number: F04C29/124 ,  F04C18/0215

    Abstract: An electric compressor includes a first scroll, a second scroll engaged with the first scroll and configured to form a compression chamber between portions of the second scroll and the first scroll during orbiting motion of the second scroll relative to the first scroll, and a frame fixed on an opposite side of the second scroll from the first scroll. A back-pressure space is formed between the frame and the second scroll, and pressure in the back-pressure space pushes the second scroll toward the first scroll. A back-pressure passage connects the compression chamber and the back-pressure space, and a valve member is disposed in the back-pressure passage and selectively blocks movement of a fluid from the back-pressure space to the compression chamber.

    SCROLL COMPRESSOR
    10.
    发明公开
    SCROLL COMPRESSOR 审中-公开

    公开(公告)号：US20230167819A1

    公开(公告)日：2023-06-01

    申请号：US17987446

    申请日：2022-11-15

    Applicant: LG Electronics Inc.

    Inventor： Jinyong JANG ,  Sanghun SEONG ,  Honghee PARK ,  Byeonghun YU

    IPC: F04C18/02 ,  F04C29/12

    CPC classification number: F04C18/0215 ,  F04C29/12

    Abstract: A scroll compressor includes a discharge guide disposed in a high-pressure part to guide refrigerant discharged from a compression part to a refrigerant discharge pipe, and the discharge guide may extend by a preset height from an inner circumferential surface of a casing constituting the high-pressure part toward one side surface of a high and low pressure separation plate. This can guide discharge refrigerant discharged to the high-pressure part to quickly flow to the refrigerant discharge pipe before being spread in an entire space of the high-pressure part, thereby preventing the high and low pressure separation plate from being overheated by discharge refrigerant of high temperature. This can result in preventing suction refrigerant of a low-pressure part from being heated by heat of discharge refrigerant transferred through the high and low pressure separation plate, thereby reducing a specific volume of the suction refrigerant and improving compressor efficiency.

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