公开(公告)号：US12071947B2

公开(公告)日：2024-08-27

申请号：US17987529

申请日：2022-11-15

Applicant: LG Electronics Inc.

Inventor： Jaesang Lee ,  Sanghun Seong ,  Honghee Park ,  Sooho Jang

IPC: F04C18/02 ,  F04C28/26 ,  F04C29/12

CPC classification number: F04C18/0215 ,  F04C18/0253 ,  F04C18/0261 ,  F04C28/26 ,  F04C28/265 ,  F04C29/12 ,  F04C29/128

Abstract: In a scroll compressor, a discharge chamber is provided in an inner space of a back pressure chamber inner wall, a discharge port is provided inside the discharge chamber, a bypass hole is provided around the discharge port, and a communicating recess portion allowing the discharge chamber to communicate with the bypass hole is provided on an inner circumferential surface of the back pressure chamber inner wall forming the discharge chamber. Through this, the bypass hole may be easily configured in addition to the discharge port, thereby increasing an operation range of the compressor and suppressing overcompression.

公开(公告)号：US11913450B2

公开(公告)日：2024-02-27

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 ,  F01C21/10 ,  F04C29/12 ,  F01C1/02 ,  F01C21/00 ,  F01C21/18

CPC classification number: F04C18/0215 ,  F01C21/18 ,  F04C29/12 ,  F01C1/0215 ,  F01C21/007 ,  F04C18/0261 ,  F04C2240/30 ,  F04C2240/40 ,  F04C2240/80 ,  F04C2240/806 ,  F04C2270/20

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.

公开(公告)号：US10247189B2

公开(公告)日：2019-04-02

申请号：US15072525

申请日：2016-03-17

Applicant: LG ELECTRONICS INC.

Inventor： Taemin Earmme ,  Byeongchul Lee ,  Cheolhwan Kim ,  Sanghun Seong

IPC: F01C17/06 ,  F04C18/02 ,  F04C29/00

Abstract: A scroll compressor is provided. The scroll compressor may include a fixed scroll having a fixed wrap and a plurality of first key recesses, an orbiting scroll engaged with the fixed scroll to define a compression chambers and having an orbiting wrap and a plurality of second key recesses, the orbiting scroll performing an orbiting motion with respect to the fixed scroll, a drive having a rotation shaft coupled to the orbiting scroll such that one end portion thereof overlaps the orbiting wrap in a lateral direction, and an Oldham ring having a plurality of first and second keys coupled to the plurality of first key recesses and the plurality of second key recesses, respectively. The plurality of second keys may at least temporarily protrude from the plurality of second key recesses in a radial direction during the orbiting motion. Further, the plurality of second key recesses and the plurality of second keys may be disposed to obtain maximum contact areas therebetween at a moment of start of discharging.

公开(公告)号：US10087937B2

公开(公告)日：2018-10-02

申请号：US14945567

申请日：2015-11-19

Applicant: LG ELECTRONICS INC.

Inventor： Sanghun Seong ,  Kitae Jang ,  Inho Won ,  Jaesang Lee ,  Byeongchul Lee

IPC: F01C1/063 ,  F04C18/063 ,  F03C2/02 ,  F04C14/24 ,  F04C29/00 ,  F04C18/02 ,  F04C29/02

Abstract: A scroll compressor is provided, in which a balancing space may be formed on a sub frame to accommodate at least one balance weight, and an oil discharge hole may be formed on a main frame, thereby suppressing, all from being introduced into or remaining in the balancing space to minimize agitation loss due to oil agitation in the balancing space, and forming a thrust surface of the main frame adjacent to an axial center of the drive shaft to suppress axial leakage at a central portion of the orbiting scroll, reducing a size of the main frame to reduce a total weight of the compressor, facilitating a centering operation of the sub frame, and suppressing an outer diameter of the sub frame from being increased, thereby accomplishing miniaturization of the scroll compressor.