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    ROTARY COMPRESSOR
    3.
    发明申请
    ROTARY COMPRESSOR 审中-公开

    公开(公告)号：US20200217203A1

    公开(公告)日：2020-07-09

    申请号：US16551101

    申请日：2019-08-26

    Applicant: LG ELECTRONICS INC.

    Inventor： Sedong LEE ,  Bumdong SA ,  Seseok SEOL

    IPC: F01C21/08 ,  F04C18/352 ,  F25B1/04

    Abstract: A rotary compressor: a casing; a plurality of bearings provided in an internal space of the casing; at least one cylinder provided between the bearings to form a compression space and has a vane slot; a rolling piston accommodated in the compression space to perform an orbiting movement; at least one vane that is slidably inserted into the vane slot of the cylinder, the at least one vane configured to separate the compression space into a suction chamber and a discharge chamber; a discharge cover including a noise reducing space to accommodate refrigerant discharged from the compression space; and a bypass flow path that allows the noise reducing space of the discharge cover to be connected between a sidewall of the vane slot and a side of the vane facing the sidewall.

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

    公开(公告)号：US20230184250A1

    公开(公告)日：2023-06-15

    申请号：US17926210

    申请日：2021-04-15

    Applicant: LG ELECTRONICS INC.

    Inventor： Bumdong SA ,  Seseok SEOL ,  Seokhwan MOON

    IPC: F04C18/344

    CPC classification number: F04C18/344 ,  F04C2240/20 ,  F04C2240/50 ,  F04C2210/12

    Abstract: A rotary compressor is provided that may include a cylinder; a chamber eccentrically formed in the cylinder and accommodating a predetermined working fluid; a rotor rotatably received in the chamber and arranged so as to be concentric to the cylinder; first and second bearings disposed on upper and lower portions, respectively, of the cylinder so as to close the chamber, and which support a drive shaft of the rotor; a plurality of vanes movably installed on the rotor in a radial direction thereof, and protruding from the rotor up to an inner circumferential surface of the cylinder so as to divide the chamber into a plurality of compression spaces; first and second guide grooves which, in order to accommodate a portion of the vanes, are formed on respective surfaces, facing the chamber, of the first and second bearings so as to be concentric to the chamber, and guide the plurality of vanes while the rotor is rotating so that the plurality of vanes continuously protrude up to the inner circumferential surface of the cylinder; and an auxiliary bearing which is provided in at least one of the first guide groove or the second guide groove and rotating with the plurality of vanes.

    ROTARY COMPRESSOR
    5.
    发明申请
    ROTARY COMPRESSOR 审中-公开

    公开(公告)号：US20190024658A1

    公开(公告)日：2019-01-24

    申请号：US16038340

    申请日：2018-07-18

    Applicant: LG ELECTRONICS INC.

    Inventor： Gukhyun CHO ,  Sedong LEE ,  Bumdong SA

    IPC: F04C2/356 ,  F04C29/12 ,  F04C13/00 ,  F04C15/00

    Abstract: A rotary compressor includes a cylinder with a vane slot and a suction port. A vane is slidably disposed in the vane slot. The suction port guides fluid to a compression chamber at one circumferential end of the vane slot. The suction port may be formed in a recessed manner in a radial direction such that at least an end of the suction port in contact with an inner circumferential surface of the cylinder forms a slot shape extending between opposite axial side surfaces of the cylinder. A circumferential length of the suction port is reduced from conventional suction ports as a result of the slot configuration, thereby advancing the compression start angle, and a partition wall portion between the suction port and the vane slot may have elasticity, thereby suppressing close contact between the vane and the vane slot.

    ROTARY COMPRESSOR
    6.
    发明申请
    ROTARY COMPRESSOR 有权

    公开(公告)号：US20240369059A1

    公开(公告)日：2024-11-07

    申请号：US18274829

    申请日：2022-01-06

    Applicant: LG ELECTRONICS INC.

    Inventor： Bumdong SA ,  Seseok SEOL ,  Seoungmin KANG

    IPC: F04C2/344

    Abstract: A rotary compressor according to the present embodiment comprises: a main bearing and a sub-bearing which are respectively provided on both sides of a cylinder in the axial direction and each provided with a guide groove; a roller which is accommodated in the cylinder and rotated along with a rotary shaft; at least one vane which is slidably inserted in the roller, and on which a guide protrusion that is slidably inserted in the guide groove in the circumferential direction is extended in the axial direction; and a bearing member which is provided between the guide groove of at least one bearing between the main bearing and the sub-bearing and the guide protrusion of the vane. As such, the frictional loss between the vane or the roller and the main bearing or the sub-bearing facing same can be reduced to improve the compressor efficiency.

    ROTARY COMPRESSOR
    7.
    发明申请
    ROTARY COMPRESSOR 有权

    公开(公告)号：US20220003235A1

    公开(公告)日：2022-01-06

    申请号：US17181076

    申请日：2021-02-22

    Applicant: LG ELECTRONICS INC.

    Inventor： Seseok SEOL ,  Seoungmin KANG ,  Bumdong SA

    IPC: F04C18/344

    Abstract: A rotary compressor is provided that may include a rotational shaft, first and second bearings configured to support the rotational shaft in a radial direction, a cylinder disposed between the first and second bearings to form a compression space, a rotor disposed in the compression space and coupled to the rotational shaft to compress a refrigerant as the rotor rotates, and at least one vane slidably inserted into the rotor, the at least one vane coming into contact with an inner peripheral surface of the cylinder to separate the compression space into a plurality of regions. The at least one vane may include a pin that extends in an axial direction, and at least one of the first bearing and the second bearing may include a rail groove into which the pin may be inserted.

    ROTARY COMPRESSOR WITH GROOVE FOR SUPPLYING OIL
    8.
    发明申请
    ROTARY COMPRESSOR WITH GROOVE FOR SUPPLYING OIL 审中-公开

    公开(公告)号：US20190234407A1

    公开(公告)日：2019-08-01

    申请号：US16260313

    申请日：2019-01-29

    Applicant: LG ELECTRONICS INC.

    Inventor： Joonhong PARK ,  Bumdong SA

    IPC: F04C29/02 ,  F04C18/356 ,  F04C23/00

    CPC classification number: F04C29/02 ,  F01C21/0845 ,  F04C18/3564 ,  F04C23/001 ,  F04C23/008 ,  F04C29/0057 ,  F04C29/023 ,  F04C2210/26 ,  F04C2240/40

    Abstract: A rotary compressor may include a rotational shaft coupled to a drive motor and having a central passage, an eccentric portion provided eccentrically from the rotational shaft, a cylinder through which the rotational shaft passes, the cylinder forming a compression chamber in which refrigerant is accommodated, a roller an inner circumferential surface of which is in close contact with an outer circumferential surface of the eccentric portion, the roller rolling and compressing a refrigerant, a vane inserted into the cylinder, the vane protruding from an inner circumferential surface of the cylinder when backpressure is applied to the vane to be in contact with an outer circumferential surface of the roller, and partitioning the compression chamber into a plurality of chambers; a plurality of oil supply grooves on an outer circumferential surface of the eccentric portion; and an oil supply passage that communicates the central passage with the oil supply grooves.

    ROTARY COMPRESSOR
    9.
    发明申请
    ROTARY COMPRESSOR 有权

    公开(公告)号：US20250035113A1

    公开(公告)日：2025-01-30

    申请号：US18714172

    申请日：2022-07-05

    Applicant: LG ELECTRONICS INC.

    Inventor： Minho LEE ,  Yongkyu CHOI ,  Bumdong SA

    IPC: F04C18/344 ,  F04C29/02

    Abstract: In a rotary compressor, at least any one of a main bearing or a sub-bearing may have at least one axial-direction support portion that extends from an outer circumferential surface of a back pressure pocket and is formed to have a predetermined depth. The compressor may increase an oil film pressure that supports a roller in an axial direction thereof to stably support the roller including a rotational shaft in the axial direction, thereby effectively suppressing or preventing friction loss and abrasion between the roller and the main bearing facing the roller and between the roller and the sub-bearing.

    ROTARY COMPRESSOR
    10.
    发明申请
    ROTARY COMPRESSOR 有权

    公开(公告)号：US20230137362A1

    公开(公告)日：2023-05-04

    申请号：US17972767

    申请日：2022-10-25

    Applicant: LG ELECTRONICS INC.

    Inventor： Yongkyu CHOI ,  Kiyoul NOH ,  Bumdong SA

    IPC: F04C14/12

    Abstract: A rotary compressor, including a cylinder, an inner peripheral surface of which is defined in an annular shape to define a compression space, provided with a suction port configured to communicate with the compression space to suction and provide refrigerant to the compression space; a roller rotatably provided in the compression space of the cylinder, and including with a plurality of vane slots at predetermined intervals along an outer peripheral surface, the plurality of vanes each providing a back pressure at one side thereinside; a plurality of vanes slidably inserted into the plurality of vane slots, respectively, to rotate together with the roller, front end surfaces of the plurality of vanes coming into contact with an inner periphery of the cylinder due to the back pressure to partition the compression space into a plurality of compression chambers; and a main bearing and a sub bearing provided at both ends of the cylinder, respectively.

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