公开(公告)号：US12215686B2

公开(公告)日：2025-02-04

申请号：US18381323

申请日：2023-10-18

Applicant: LG ELECTRONICS INC.

Inventor： Seokhwan Moon ,  Sanghun Seong ,  Jinyong Jang ,  Sooho Jang

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

Abstract: A scroll compressor is provided that may have a first sealing portion defined between an inner surface of an orbiting wrap and an outer surface of a non-orbiting wrap facing the inner surface of the orbiting wrap in a radial direction, and a second sealing portion defined between an inner surface of the non-orbiting wrap and an outer surface of the orbiting wrap facing the inner surface of the non-orbiting wrap in the radial direction. Further, sealing surfaces where the wraps facing each other are in surface-contact with each other may be formed on at least one of the first sealing portion or the second sealing portion. This may enlarge a sealing area between side surfaces of the wraps facing each other to suppress or prevent leakage of refrigerant suctioned in a compression chamber, thereby improving indicated efficiency and volumetric efficiency.

公开(公告)号：US10954942B2

公开(公告)日：2021-03-23

申请号：US15996883

申请日：2018-06-04

Applicant: LG Electronics Inc.

Inventor： Sanghun Seong ,  Byungkil Yoo ,  Nayoung Jeon

IPC: F04C28/18 ,  F04C28/02 ,  F04C23/00 ,  F04C27/00 ,  F04C28/26 ,  F01C1/02 ,  F04C29/00 ,  F04C18/02

Abstract: A scroll compressor includes a casing accommodating a rotary shaft and a driving unit, a first scroll making an orbiting movement by the rotary shaft, a second scroll engaged with the first scroll to form a compression chamber and having a bypass hole bypassing a refrigerant sucked into the compression chamber to an internal space of the casing, and a back-pressure chamber assembly pressing the second scroll toward the first scroll, wherein the back-pressure chamber assembly includes: a back-pressure space, a first valve unit allowing the bypass hole and the internal space of the casing to selectively communicate with each other, and a second valve unit opened and closed to selectively supply the refrigerant of the back-pressure space to the first valve unit to operate the first valve unit, and positioned to be fixed to the casing.

公开(公告)号：US12215685B2

公开(公告)日：2025-02-04

申请号：US18378203

申请日：2023-10-10

Applicant: LG ELECTRONICS INC.

Inventor： Jinyong Jang ,  Sanghun Seong ,  Seokhwan Moon ,  Sooho Jang

IPC: F04C18/02 ,  F04C23/00 ,  F04C28/24 ,  F04C28/26 ,  F04C29/00 ,  F04C29/12

Abstract: A scroll compressor is provided that may include a first back pressure unit that allows a refrigerant to flow from a first compression chamber to a back pressure chamber while blocking a reverse flow of the refrigerant, and a second back pressure unit that allows the refrigerant to flow from the back pressure chamber to a second compression chamber while blocking a reverse flow of the refrigerant. The first back pressure unit and the second back pressure unit may be spaced apart from each other in a direction that the compression chambers are formed. This may reduce pressure pulsation in the back pressure chamber. Also, leakage between compression chambers may be suppressed and simultaneously friction loss may be reduced by appropriately adjusting the pressure in the back pressure chamber. This is especially advantageous for enhancing compression efficiency under low load operating conditions (or in a low pressure ratio operation).

公开(公告)号：US11773851B2

公开(公告)日：2023-10-03

申请号：US17721610

申请日：2022-04-15

Applicant: LG ELECTRONICS INC.

Inventor： Byeonghun Yu ,  Sanghun Seong ,  Jinyong Jang ,  Byeongchul Lee

IPC: F04C18/02 ,  F04C29/12 ,  F04C23/00 ,  F04C29/04

CPC classification number: F04C18/0261 ,  F04C29/12 ,  F04C18/0215 ,  F04C23/008 ,  F04C29/045 ,  F04C2240/30 ,  F04C2240/40 ,  F04C2240/50 ,  F04C2240/806 ,  F05C2251/046

Abstract: A scroll compressor is disclosed. The scroll compressor may include a suction guide between a refrigerant suction pipe and a high/low pressure separation plate, and the suction guide may be fastened to a non-orbiting scroll or inserted into a suction guide protrusion that extends from the non-orbiting scroll. Accordingly, suction refrigerant may be partially suctioned into a compression chamber by the suction guide in advance before moving to the high/low pressure separation plate, so as to be prevented from coming into contact with the high/low pressure separation plate, while the suction refrigerant may also partially flow toward a drive motor without being suctioned directly into the compression chamber, so as to cool the drive motor, whereby efficiency of the compressor may be improved and an operation range of the compressor may be expanded.

公开(公告)号：US20160195089A1

公开(公告)日：2016-07-07

申请号：US15072525

申请日：2016-03-17

Applicant: LG ELECTRONICS INC.

Inventor： Taemin EARMME ,  Byeongchul Lee ,  Cheolhwan Kim ,  Sanghun Seong ,  Kwang Ki Choi

IPC: F04C29/00 ,  F04C18/02

CPC classification number: F04C29/0057 ,  F01C17/066 ,  F01C21/007 ,  F04C18/0215 ,  F04C18/0253

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.

Abstract translation: 提供涡旋压缩机。 涡旋式压缩机可以包括具有固定涡卷和多个第一键凹槽的固定涡旋盘，与固定涡旋件接合以限定压缩室并具有绕动涡卷和多个第二键凹槽的绕动涡旋盘， 相对于固定涡旋件的轨道运动，具有联接到绕动涡旋件的旋转轴的驱动器，使得其一个端部在横向方向上与绕动涡卷重叠，并且具有多个第一和第二键的十字形环耦合到 多个第一键槽和多个第二键槽。 在轨道运动期间，多个第二键可以至少在径向上从多个第二键凹槽突出。 此外，可以设置多个第二键凹槽和多个第二键，以在放电开始时获得其间的最大接触面积。

公开(公告)号：US12092109B2

公开(公告)日：2024-09-17

申请号：US18404022

申请日：2024-01-04

Applicant: LG ELECTRONICS INC.

Inventor： Sanghun Seong ,  Seokhwan Moon ,  Jinyong Jang ,  Sooho Jang

IPC: F04C28/06 ,  F04C18/02 ,  F04C29/12

CPC classification number: F04C28/065 ,  F04C18/0215 ,  F04C29/128

Abstract: A scroll compressor is provided that may include first and second variable-capacity units that provide communication between a first intermediate pressure chamber and a low-pressure portion and between a second intermediate pressure chamber and the low-pressure portion. The first variable-capacity unit may include a first variable-capacity passage that communicates with the intermediate pressure chamber, at least one first variable-capacity valve that opens/closes the first variable-capacity passage, and a first variable-capacity opening and closing valve that controls opening/closing of the at least one first variable-capacity valve, and the second variable-capacity unit may include a second variable-capacity passage that communicates with a second intermediate pressure chamber, at least one second variable-capacity valve that opens/closes the second variable-capacity passage, and a second variable-capacity opening and closing valve that controls opening/closing of the at least one second variable-capacity valve.

公开(公告)号：US10815994B2

公开(公告)日：2020-10-27

申请号：US15912215

申请日：2018-03-05

Applicant: LG ELECTRONICS INC.

Inventor： Jaesang Lee ,  Jinho Kim ,  Sanghun Seong

IPC: F03C2/00 ,  F03C4/00 ,  F04C18/00 ,  F04C2/00 ,  F04C18/02 ,  F04C29/02 ,  F04C29/12 ,  F04C29/00 ,  F04C23/00 ,  F04C27/00

Abstract: A mutual rotating scroll compressor includes: a first frame fixed to a casing; a second frame provided with an interval between the first frame and the second frame, a compression space being provided between the first frame and the second frame; a first scroll rotatably supported by the first frame and coupled to a driving motor to rotate in the compression space; a second scroll engaged with the first scroll to rotate about the second frame, the second scroll and the first scroll forming a compression chamber in the compression space; and a bearing housing including a housing part, including a boss accommodation part to which the second scroll is rotatably coupled, and a hinge lug which extends from the housing part and is movably coupled to the second frame.

公开(公告)号：US11008867B2

公开(公告)日：2021-05-18

申请号：US16225058

申请日：2018-12-19

Applicant: LG ELECTRONICS INC.

Inventor： Kitae Jang ,  Sanghun Seong ,  Jinyong Jang ,  Jongtae Her

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

Abstract: A scroll compressor may include a casing configured to receive a rotation shaft and a driving unit; a compression unit provided with a frame configured to rotatably support the rotation shaft, a first scroll fixed to the casing, and a second scroll configured to be connected to the rotation shaft and engaged with the first scroll. An oldham ring is provided with a plurality of key portions to guide the second scroll to perform an orbiting movement, wherein at least one of the frame, the first scroll, and the second scroll includes a respective key groove formed to receive a respective key portion; and a respective wear-resistant member mounted to cover an inner surface of the respective key groove in contact with the respective key portion.

公开(公告)号：US10527039B2

公开(公告)日：2020-01-07

申请号：US15372762

申请日：2016-12-08

Applicant: LG ELECTRONICS INC.

Inventor： Jaesang Lee ,  Sanghun Seong ,  Byeongchul Lee

IPC: F04C18/02

Abstract: A scroll compressor is provided that may include a communication hole that penetrates from a side surface of a non-orbiting scroll adjacent to a discharge side to a thrust bearing surface between the non-orbiting scroll and an orbiting scroll, and a decompression member having a radial sectional area smaller than a radial sectional area of the communication hole and inserted into the communication hole. A refrigerant discharged to a discharge space may be introduced to a suction space through the passage between the communication hole and the decompression member, thereby preventing a high vacuum state of a compression chamber, and a refrigerant passing through the communication hole may be decompressed during a normal operation to restrain leakage of the refrigerant to the thrust bearing surface between the non-orbiting scroll and the orbiting scroll, thus increasing compression efficiency.

公开(公告)号：USRE46106E1

公开(公告)日：2016-08-16

申请号：US14539834

申请日：2014-11-12

Applicant: LG Electronics Inc.

Inventor： Sanghun Seong ,  Cheolhwan Kim ,  Byeongchul Lee ,  Samchul Ha

IPC: F03C2/00 ,  F03C4/00 ,  F04C2/00 ,  F04C18/02

CPC classification number: F04C18/0269 ,  F04C18/0215 ,  F04C23/008

Abstract: A scroll compressor includes a fixed scroll having a fixed wrap, and an orbiting scroll having an orbiting wrap engaged with the fixed wrap to define a first compression chamber between an inner surface of the fixed wrap and an outer surface of the orbiting wrap, and to define a second compression chamber between an inner surface of the orbiting wrap and an outer surface of the fixed wrap. A rotation shaft is provided with an eccentric portion at one end thereof to drive the orbiting scroll. A protruding portion protrudes inwardly from an inner end of the fixed wrap, and contacts the orbiting wrap. A distance between a center of the eccentric portion and a tangent line at a contact point between the protruding portion and the orbiting wrap at an end of the first compression chamber is smaller than a radius of the eccentric portion.

Abstract translation: 涡旋压缩机包括具有固定涡卷的固定涡旋盘和具有与固定涡旋件接合的绕动涡卷的绕动涡旋盘，以在固定涡卷的内表面和绕动涡卷的外表面之间限定第一压缩室， 在所述绕动涡卷的内表面和所述固定涡卷的外表面之间限定第二压缩室。 旋转轴在其一端设置有偏心部，以驱动绕动涡旋件。 突出部分从固定包装的内端向内突出，并且与绕动包裹物接触。 所述偏心部的中心与所述突出部与所述第一压缩室的端部的所述绕线卷绕部之间的接触点处的切线之间的距离小于所述偏心部的半径。