公开(公告)号：US12078175B2

公开(公告)日：2024-09-03

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 ,  F04C23/00 ,  F04C29/02 ,  F04C29/04 ,  F04C29/06

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

Abstract: A compressor 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：US11668303B2

公开(公告)日：2023-06-06

申请号：US16693467

申请日：2019-11-25

Applicant: LG ELECTRONICS INC.

Inventor： Jungsun Choi ,  Howon Lee ,  Cheolhwan Kim

IPC: F03C2/00 ,  F03C4/00 ,  F04C18/00 ,  F04C18/02 ,  F01C21/10 ,  F04C23/00 ,  F04C29/02

CPC classification number: F04C18/0269 ,  F01C21/102 ,  F04C18/0215 ,  F04C23/008 ,  F04C29/023 ,  F04C29/025 ,  F04C2240/603 ,  F05C2201/02 ,  F05C2201/021 ,  F05C2201/0439

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 so 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. 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：US11015596B2

公开(公告)日：2021-05-25

申请号：US15876396

申请日：2018-01-22

Applicant: LG ELECTRONICS INC.

Inventor： Howon Lee ,  Jungsun Choi ,  Cheolhwan Kim

IPC: F04C18/02 ,  F04C23/00 ,  F04C27/00 ,  F01C19/00

Abstract: A scroll compressor includes: a frame configured to support a second scroll by being coupled to a first scroll; a sealing member insertion groove formed in a ring shape, on at least one of one side surface of the second scroll and one side surface of the frame contacting the second scroll; and a sealing member formed in a ring shape, inserted into the sealing member insertion groove, and configured to divide an interval between the second scroll and the frame in a radial direction, wherein the sealing member is formed such that a sectional surface of an inner circumferential surface thereof is smaller than that of an outer circumferential surface thereof, and such that a second gap between the outer circumferential surface of the sealing member and an outer side wall surface of the sealing member insertion groove is smaller than or equal to a first gap between the inner circumferential surface of the sealing member and an inner side wall surface of the sealing member insertion groove.

公开(公告)号：US20190010945A1

公开(公告)日：2019-01-10

申请号：US15830248

申请日：2017-12-04

Applicant: LG ELECTRONICS INC.

Inventor： Yong Kyu CHOI ,  Cheol Hwan Kim ,  Howon Lee

IPC: F04C29/12 ,  F04C18/02

Abstract: A scroll compressor is provided, that may include a connection groove to reduce discharge resistance. The scroll compressor may include a fixed scroll including a fixed end plate and a feed wrap and an orbiting scroll, rotating with respect to the fixed scroll and including an orbiting end plate and an orbiting wrap, and structure in which a connection groove having a concave groove shape provided at an inner surface of the fixed end plate to allow a refrigerant to flow through the connection groove depending on an overlapping state of the fixed wrap and the connection groove, thereby providing an effect of increasing opening efficiency of discharge holes at a beginning of discharge.

公开(公告)号：US20180172004A1

公开(公告)日：2018-06-21

申请号：US15876396

申请日：2018-01-22

Applicant: LG ELECTRONICS INC.

Inventor： Howon Lee ,  Jungsun Choi ,  Cheolhwan Kim

IPC: F04C18/02 ,  F04C27/00 ,  F04C23/00

CPC classification number: F04C18/0215 ,  F01C19/005 ,  F04C18/0253 ,  F04C23/008 ,  F04C27/005 ,  F04C27/008 ,  F04C2230/60

Abstract: A scroll compressor includes: a frame configured to support a second scroll by being coupled to a first scroll; a sealing member insertion groove formed in a ring shape, on at least one of one side surface of the second scroll and one side surface of the frame contacting the second scroll; and a sealing member formed in a ring shape, inserted into the sealing member insertion groove, and configured to divide an interval between the second scroll and the frame in a radial direction, wherein the sealing member is formed such that a sectional surface of an inner circumferential surface thereof is smaller than that of an outer circumferential surface thereof, and such that a second gap between the outer circumferential surface of the sealing member and an outer side wall surface of the sealing member insertion groove is smaller than or equal to a first gap between the inner circumferential surface of the sealing member and an inner side wall surface of the sealing member insertion groove.

公开(公告)号：US12000397B2

公开(公告)日：2024-06-04

申请号：US17876038

申请日：2022-07-28

Applicant: LG Electronics Inc.

Inventor： Howon Lee ,  Kangwook Lee ,  Cheolhwan Kim

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

CPC classification number: F04C18/0292 ,  F04C18/0215 ,  F04C18/0261 ,  F04C18/0269 ,  F04C23/02 ,  F04C29/128 ,  F04C29/02 ,  F04C2210/26 ,  F04C2240/10 ,  F04C2240/20 ,  F04C2240/40

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：US11428229B2

公开(公告)日：2022-08-30

申请号：US16423775

申请日：2019-05-28

Applicant: LG Electronics Inc.

Inventor： Howon Lee ,  Kangwook Lee ,  Cheolhwan Kim

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

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：US11209003B2

公开(公告)日：2021-12-28

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 ,  F04C29/06

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：US11635077B2

公开(公告)日：2023-04-25

申请号：US16837596

申请日：2020-04-01

Applicant: LG Electronics Inc.

Inventor： Howon Lee ,  Taekyoung Kim ,  Cheolhwan Kim

IPC: F03C2/00 ,  F03C4/00 ,  F04C15/00 ,  F04C2/00 ,  F04C29/02 ,  F04C18/02 ,  F04C23/00

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：US10851789B2

公开(公告)日：2020-12-01

申请号：US15830248

申请日：2017-12-04

Applicant: LG ELECTRONICS INC.

Inventor： Yong Kyu Choi ,  Cheol Hwan Kim ,  Howon Lee

IPC: F04C29/12 ,  F04C18/02 ,  F04C23/00

Abstract: A scroll compressor is provided, that may include a connection groove to reduce discharge resistance. The scroll compressor may include a fixed scroll including a fixed end plate and a feed wrap and an orbiting scroll, rotating with respect to the fixed scroll and including an orbiting end plate and an orbiting wrap, and structure in which a connection groove having a concave groove shape provided at an inner surface of the fixed end plate to allow a refrigerant to flow through the connection groove depending on an overlapping state of the fixed wrap and the connection groove, thereby providing an effect of increasing opening efficiency of discharge holes at a beginning of discharge.