公开(公告)号：US11598337B2

公开(公告)日：2023-03-07

申请号：US16926042

申请日：2020-07-10

Applicant: LG Electronics Inc.

Inventor： Jungsun Choi ,  Cheolhwan Kim ,  Sangbaek Park

IPC: F04C18/02 ,  F01C1/02 ,  F04C23/00 ,  F04C27/00

Abstract: A compressor, more particularly, a scroll compressor provides structures that may enhance centrifugal stiffness at a contact point between a fixed scroll and an orbiting scroll. The compressor may include an orbiting scroll having an orbiting scroll wrap wound around a radial-direction inner area from a radial-direction outer area; and a fixed scroll having a fixed scroll wrap wound around the radial-direction inner area from the radial-direction outer area. A surfacing part may be configured to narrow a distance between the orbiting scroll wrap and the fixed scroll wrap may be formed in a predetermined section of the orbiting scroll or fixed scroll wrap.

公开(公告)号：US11353026B2

公开(公告)日：2022-06-07

申请号：US16790247

申请日：2020-02-13

Applicant: LG Electronics Inc.

Inventor： Jungsun Choi ,  Sangbaek Park ,  Cheolhwan Kim

IPC: F04C29/02 ,  F04C18/02 ,  F04C29/06 ,  F04C28/26 ,  F04C28/28

Abstract: Disclosed is a compressor including a compressing assembly having a decompressing structure to control an amount of oil. The decompressing structure is oriented in parallel with a length direction of the rotation shaft or in a direction toward a discharger from which the refrigerant is discharged.

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：US11002273B2

公开(公告)日：2021-05-11

申请号：US16409186

申请日：2019-05-10

Applicant: LG Electronics Inc.

Inventor： Jungsun Choi ,  Sang Baek Park ,  Cheol Hwan Kim

IPC: F04C18/02

Abstract: A scroll compressor includes a casing; a drive motor; a rotary shaft; a fixed scroll including a fixed wrap; and an orbiting scroll eccentrically coupled to rotary shaft and including an orbiting wrap configured to engage with the fixed wrap. At least one of the fixed wrap or the orbiting wrap defines an offset section that is defined between the fixed wrap and the orbiting wrap and that is greater than an orbital radius corresponding to a distance between the fixed wrap and the orbiting wrap in a state in which a center of the fixed scroll is aligned to a center of the orbiting scroll. The offset section is disposed at a contact portion between the fixed wrap and the orbiting wrap. The contact portion has a maximum length based on a rotation angle of the rotary shaft being within a pre-set range with respect to a reference point.

公开(公告)号：US10697455B2

公开(公告)日：2020-06-30

申请号：US15830184

申请日：2017-12-04

Applicant: LG ELECTRONICS INC.

Inventor： Sang baek Park ,  Jungsun Choi ,  Cheol Hwan Kim ,  Byeongchul Lee

IPC: F01C1/02 ,  F03C2/00 ,  F03C4/00 ,  F04C18/00 ,  F04C2/00 ,  F04C18/02 ,  F01C21/00 ,  F04C29/12 ,  F04C29/02 ,  F04C23/00

Abstract: A compressor is provided which is configured to allow lubrication of a thrust surface through an oil groove formed in a thrust surface of a fixed scroll. Also, a scroll compressor is provided which smoothly supplies oil to a thrust surface of a fixed scroll by including a fixed scroll having an oil groove formed in the thrust surface of a fixed scroll sidewall, and allows an injection pressure acting on an orbiting scroll in an upward direction to be added by supplying the oil guided to the oil groove to the thrust surface of the fixed scroll such that an overturn moment generated in the orbiting scroll may be offset.

公开(公告)号：US20200088194A1

公开(公告)日：2020-03-19

申请号：US16692088

申请日：2019-11-22

Applicant: LG ELECTRONICS INC.

Inventor： Yong Kyu CHOI ,  Cheol Hwan Kim ,  Kangwook Lee ,  Jungsun Choi

IPC: F04C18/02 ,  F01C21/00 ,  F04C15/00 ,  F04C29/00 ,  F04C29/12

Abstract: A scroll compressor, and more particularly, to a scroll compressor including a communication groove which may decrease discharge resistance is provided. The scroll compressor may include a fixed scroll having a fixed end plate and a fixed wrap, and an orbiting scroll configured to perform an orbiting movement about the fixed scroll and having an orbiting end plate and an orbiting wrap. A communication groove in the form of a recessed groove may be formed in an inner surface of the orbiting end plate, and a refrigerant may flow through the communication groove according to a state in which the fixed wrap overlaps the communication groove such that there is an effect in that an opening efficiency of a discharge hole is improved at an initial stage 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.