公开(公告)号：US20240052835A1

公开(公告)日：2024-02-15

申请号：US18231878

申请日：2023-08-09

Applicant: LG ELECTRONICS INC.

Inventor： Howon LEE ,  Cheolhwan KIM ,  Sangbaek PARK

IPC: F04C18/02 ,  F04C29/02

CPC classification number: F04C18/0215 ,  F04C29/023 ,  F04C2240/30

Abstract: A scroll compressor may include an oil supply passage provided independent of an intermediate pressure chamber to allow an oil passage of a rotational shaft to communicate with a compression chamber, such that some of the oil suctioned through the oil passage is guided to the compression chamber. As an inner space of a casing communicates directly with the compression chamber without passing through the intermediate pressure chamber, even in a state in which an operating pressure ratio is, for example, 1.3 or less, namely, even if a differential pressure between the inner space and the compression chamber is not large, oil stored in the inner space may be smoothly supplied to the compression chamber.

公开(公告)号：US20220364564A1

公开(公告)日：2022-11-17

申请号：US17876038

申请日：2022-07-28

Applicant: LG Electronics Inc.

Inventor： Howon LEE ,  Kangwook LEE ,  Cheolhwan KIM

IPC: F04C29/12 ,  F04C18/02 ,  F04C23/02

Abstract: A scroll compressor is disclosed, which comprises an auxiliary discharge path capable of sufficiently making sure of a discharge area at an initial discharge stage. The compressor comprises a fixed scroll including a fixed end plate portion and a fixed wrap, and an orbiting scroll including an orbiting end plate portion and an orbiting wrap, wherein a discharge hole is formed in the fixed end plate portion, and an auxiliary discharge path for connecting a side of the orbiting wrap with a bottom surface of the orbiting wrap is provided to be communicated with the discharge hole, whereby a compressed refrigerant may be discharged through the auxiliary discharge path.

公开(公告)号：US20200032803A1

公开(公告)日：2020-01-30

申请号：US16510464

申请日：2019-07-12

Applicant: LG Electronics Inc.

Inventor： Howon LEE ,  Taekyoung KIM ,  Cheolhwan KIM

IPC: F04C29/12 ,  F04C18/02

Abstract: Disclosed herein is a scroll compressor in which the discharge hole is formed to have an axial length less than an axial length of the fixed shaft accommodation portion, thereby increasing efficiency.

公开(公告)号：US20200318636A1

公开(公告)日：2020-10-08

申请号：US16837596

申请日：2020-04-01

Applicant: LG Electronics Inc.

Inventor： Howon LEE ,  Taekyoung KIM ,  Cheolhwan KIM

IPC: F04C15/00 ,  F04C2/10 ,  F04C2/02

Abstract: A scroll compressor is disclosed, which may provide an oil supply path opened only in case of driving of a low pressure ratio to improve a differential pressure oil supply structure which may have a defect in oil supply in case of driving of the low pressure ratio.

公开(公告)号：US20170306953A1

公开(公告)日：2017-10-26

申请号：US15491009

申请日：2017-04-19

Applicant: LG ELECTRONICS INC.

Inventor： Jungsun CHOI ,  Howon LEE ,  Cheolhwan KIM

IPC: F04C18/02 ,  F04C29/00

Abstract: A scroll compressor is provided that may include a casing; a drive motor provided at an inner space of the casing; a rotational shaft coupled to a rotor of the drive motor, and rotated together with the rotor; a frame provided below the drive motor; a fixed scroll provided below the frame, and having a fixed wrap; and an orbiting scroll provided between the frame and the fixed scroll, having an orbiting wrap se as to form a compression chamber including a suction chamber, an intermediate pressure chamber, and a discharge chamber, by being engaged with the fixed wrap, and having a rotational shaft coupling portion that couples the rotational shaft thereto in a penetrating manner. In a state in which a center of the fixed scroll and a center of the orbiting scroll are substantially the same, an interval between the fixed wrap and the orbiting wrap gradually increases towards the suction chamber from the discharge chamber.

公开(公告)号：US20230204035A1

公开(公告)日：2023-06-29

申请号：US17919934

申请日：2021-03-08

Applicant: LG Electronics Inc.

Inventor： Jaeha LEE ,  Sungyong AHN ,  Howon LEE

IPC: F04C29/12 ,  F04C18/02 ,  F04C29/02 ,  F04C29/06

CPC classification number: F04C29/124 ,  F04C18/0215 ,  F04C29/023 ,  F04C29/065

Abstract: A compressor according to embodiments of the present disclosure comprises a discharge valve which is provided so as to be coupled to a fixed scroll and open/close a discharge hole. The discharge valve includes a coupling portion which is coupled to one surface of the fixed scroll, the surface facing a muffler, and a head portion extending from the coupling portion and opening/closing the discharge hole. The head portion may be provided with a communicating hole for allowing the discharge hole and the muffler to be in communication with each other. Accordingly, a backflow of a compressed refrigerant is prevented during the operation of the compressor, and thus over-compression of the refrigerant can be prevented. Also, when the compressor stops operating, only a certain amount of the discharged refrigerant is allowed to flow backward to prevent a reverse rotation of an orbiting scroll and a decrease in the oil level of the oil stored in a case.

公开(公告)号：US20200318637A1

公开(公告)日：2020-10-08

申请号：US16837658

申请日：2020-04-01

Applicant: LG Electronics Inc.

Inventor： Kyungho LEE ,  Cheolhwan KIM ,  Howon LEE

IPC: F04C15/00 ,  F04C2/02

Abstract: A compressor is disclosed, which comprises a regulate portion provided in at least one of a main frame and a fixed scroll to control or selectively shield an opening of a delivery path or a fixed path.

公开(公告)号：US20170306957A1

公开(公告)日：2017-10-26

申请号：US15451803

申请日：2017-03-07

Applicant: LG ELECTRONICS INC.

Inventor： Howon LEE ,  Jungsun Choi ,  Cheolhwan Kim

IPC: F04C27/00 ,  F04C29/00 ,  F04C18/02 ,  F04C29/02

Abstract: A scroll compressor is provided that may include a motor; an orbiting scroll; a fixed scroll coupled to the orbiting scroll, and forming a compression chamber together with the orbiting scroll; a frame coupled to the fixed scroll, and configured to support the orbiting scroll; a sealing member mounting groove having a ring shape, and formed on a first surface of the frame contacting the orbiting scroll, or a second surface of the orbiting scroll contacting the frame; and a sealing member including a first sealing portion formed in a ring shape, inserted into the sealing member mounting groove so as to be moveable in an axial direction, and configured to perform a sealing operation between the frame and the orbiting scroll in the axial direction and including a second sealing portion extending from the first sealing portion in the axial direction, and configured to perform a sealing operation between the frame and the orbiting scroll in a radial direction by contacting an outer side wall surface of the sealing member mounting groove A thickness of the second sealing portion in the radial direction may be smaller than a thickness of the first sealing portion in the axial direction.