公开(公告)号：US09222475B2

公开(公告)日：2015-12-29

申请号：US13949412

申请日：2013-07-24

Applicant: LG ELECTRONICS INC.

Inventor： Suchul Kim ,  Honggyun Jin ,  Juhwan Yun ,  Kiwon Park

IPC: F04C18/02 ,  F04C27/00 ,  F04C28/26 ,  F04C23/00

CPC classification number: F04C18/0261 ,  F04C18/0215 ,  F04C18/023 ,  F04C23/008 ,  F04C27/005 ,  F04C28/26

Abstract: A scroll compressor having a back pressure discharge is provided. The scroll compressor may include a casing, a discharge cover, a main frame, a first scroll supported by the main frame, and a second scroll forming at least a discharge chamber together with the first scroll. The second scroll may include a discharge opening through which an operation fluid may be discharged. The scroll compressor may also include a back pressure chamber assembly fastened to the second scroll with a Efastener, a back pressure discharge opening that communicates with the back pressure chamber, and a discharge path by which the discharge chamber and the discharge space communicate with each other. The scroll compressor may further include a check valve disposed at the back pressure discharge opening to prevent the operation fluid from being introduced into the back pressure chamber.

Abstract translation: 提供具有背压放电的涡旋压缩机。 涡旋式压缩机可以包括壳体，排出盖，主框架，由主框架支撑的第一涡卷，以及与第一涡旋件一起形成至少排出室的第二涡旋件。 第二涡卷可以包括可以排出操作流体的排放口。 涡旋式压缩机还可以包括用Efastener固定到第二涡卷的背压室组件，与背压室连通的背压排放口，以及排放室和放电空间相互连通的排放路径 。 涡旋压缩机还可以包括设置在背压排出口处的止回阀，以防止操作流体被引入到背压室中。

公开(公告)号：US11629714B2

公开(公告)日：2023-04-18

申请号：US17181109

申请日：2021-02-22

Applicant: LG ELECTRONICS INC.

Inventor： Changeol Jo ,  Suchul Kim ,  Jeonghun Kim ,  Sung Yong Ahn

IPC: F04C29/04 ,  F04C29/06 ,  F04C29/00 ,  F01C21/10 ,  F04C23/02 ,  F04C18/02

Abstract: A compressor may include a casing, and a compression device installed inside of the casing and that compresses the refrigerant while rotating by receiving a rotational force of an electric motor through a rotational shaft. A high/low pressure separation plate may be installed at an upper portion of the compression device, and an insulation plate may be provided to block the high/low pressure separation plate and the suction tube from each other by being located therebetween. The insulation plate may reduce heat transfer between a refrigerant discharge space having a high temperature located at the upper portion of the high/low pressure separation plate and a refrigerant suction space having a relatively low temperature located at a lower portion of the high/low pressure separation plate.

公开(公告)号：US11067079B2

公开(公告)日：2021-07-20

申请号：US16660044

申请日：2019-10-22

Applicant: LG ELECTRONICS INC.

Inventor： Changeol Jo ,  Suchul Kim ,  Donghyun Sohn

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

Abstract: A scroll compressor is provided that may include a frame; a non-orbiting scroll provided with a non-orbiting wrap formed on a first side surface of a non-orbiting end plate in an axial direction; an orbiting scroll provided with an orbiting wrap formed on a first side surface of the orbiting end plate in the axial direction and engaged with the non-orbiting wrap to form a compression chamber; a plurality of first guides disposed between the frame and the non-orbiting scroll to be located radially outward from the non-orbiting wrap; and a plurality of second guides provided on the orbiting end plate to be located radially outward from the orbiting wrap, respectively, so as to allow an orbiting motion of the orbiting scroll together with the first guides.

公开(公告)号：US09732752B2

公开(公告)日：2017-08-15

申请号：US14703084

申请日：2015-05-04

Applicant: LG ELECTRONICS INC.

Inventor： Honggyun Jin ,  Suchul Kim ,  Hyunwook Lee

IPC: F03C2/00 ,  F04C2/00 ,  F04C18/00 ,  F04C18/02 ,  F01C1/02 ,  F04C14/26 ,  F04C23/00 ,  F04C28/26 ,  F04C27/00 ,  F01C20/26

CPC classification number: F04C18/0223 ,  F01C1/0215 ,  F01C1/0246 ,  F01C1/0261 ,  F01C20/26 ,  F04C14/26 ,  F04C18/0215 ,  F04C18/0246 ,  F04C18/0261 ,  F04C23/008 ,  F04C27/005 ,  F04C28/26

Abstract: A scroll compressor is provided that may include a casing including a rotational shaft, a discharge cover fixed inside of the casing to partition the inside of the casing into a suction space and a discharge space, a first scroll that is revolved by rotation of the rotational shaft, a second scroll that defines a plurality of compression chambers together with the first scroll, the second scroll having an intermediate pressure discharge hole that communicates with a compression chamber having an intermediate pressure of the plurality of compression chambers, a back pressure plate that defines a back pressure chamber that accommodates a refrigerant discharged from the intermediate pressure discharge hole, a floating plate movably disposed on or at a side of the back pressure plate to define the back pressure chamber together with the back pressure plate, and an elastic member disposed between the floating plate and the discharge cover to provide an elastic force to the floating plate.

公开(公告)号：US09726175B2

公开(公告)日：2017-08-08

申请号：US14702968

申请日：2015-05-04

Applicant: LG ELECTRONICS INC.

Inventor： Suchul Kim ,  Kiwon Park ,  Minjae Kim

IPC: F03C2/00 ,  F03C4/00 ,  F04C2/00 ,  F04C27/00 ,  F04C29/12 ,  F04C15/00 ,  F01C1/02 ,  F01C19/00 ,  F04C18/02 ,  F04C23/00 ,  F04C28/06

CPC classification number: F04C27/003 ,  F01C1/0215 ,  F01C1/0261 ,  F01C19/005 ,  F04C15/0023 ,  F04C18/0215 ,  F04C18/0261 ,  F04C23/008 ,  F04C27/008 ,  F04C28/06 ,  F04C29/12 ,  F04C29/124 ,  F05C2225/00 ,  F05C2225/02

Abstract: A scroll compressor is provided. The scroll compressor may include a casing, a discharge cover to partition an inside of the casing into suction and discharge spaces, a first scroll, a second scroll that defines compression chambers together with the first scroll and includes an intermediate pressure discharge hole that communicates with a compression chamber having an intermediate pressure of the compression chambers, a back pressure plate that defines a back pressure chamber that accommodates a refrigerant discharged from the intermediate pressure discharge hole, a floating plate that defines the back pressure chamber together with the back pressure plate, and a gasket disposed between the back pressure plate and the second scroll and having an intermediate pressure communication hole that allows the intermediate pressure discharge hole to communicate with the intermediate pressure suction hole. The gasket may block communication between the back pressure chamber and the suction and discharge spaces.

公开(公告)号：US11982275B2

公开(公告)日：2024-05-14

申请号：US18113203

申请日：2023-02-23

Applicant: LG ELECTRONICS INC.

Inventor： Suchul Kim ,  Sanghyeon Ji

IPC: F04C28/26 ,  F04C18/02 ,  F04C28/24 ,  F04C29/02

CPC classification number: F04C28/26 ,  F04C18/0215 ,  F04C28/24 ,  F04C29/028 ,  F04C2240/80 ,  F04C2240/805 ,  F04C2270/205

Abstract: A scroll compressor is provided, in which a fastening member fixing portion of a valve fastening member fixes the valve fastening member to a non-orbiting scroll, a valve fixing portion of the valve fastening member fixes a bypass valve to the non-orbiting scroll, and the fastening member fixing portion is located axially farther away from a compression chamber than the valve fixing portion is. This may secure a fastening thickness by which the valve fastening member that fixes the bypass valve is fastened to the non-orbiting scroll and reduce a plate thickness at a portion where bypass holes and/or a discharge port are formed, thereby decreasing dead volumes in the bypass holes and/or the discharge port.

公开(公告)号：US11767843B2

公开(公告)日：2023-09-26

申请号：US17843101

申请日：2022-06-17

Applicant: LG ELECTRONICS INC.

Inventor： Changeol Jo ,  Suchul Kim ,  Junghwan Jang

IPC: F03C2/00 ,  F03C4/00 ,  F04C2/00 ,  F04C29/02 ,  F04C18/02 ,  F01C17/06 ,  F04C23/00

CPC classification number: F04C18/0215 ,  F01C17/066 ,  F04C29/028 ,  F04C23/008

Abstract: A scroll compressor may include an oil supply passage formed in a main frame. A first end of the oil supply passage may be open toward an orbiting space of the main frame and a second end may be open toward an Oldham ring. With this configuration, even if refrigerant suctioned through a refrigerant suction pipe sweeps away oil, which lubricates a sliding surface between a key and a key groove adjacent to the refrigerant suction pipe while passing through between the key and the key groove, oil may be quickly and smoothly supplied to the sliding surface. This may prevent wear between the key and the key groove so as to enhance efficiency of the compressor.

公开(公告)号：US11415132B2

公开(公告)日：2022-08-16

申请号：US16876281

申请日：2020-05-18

Applicant: LG ELECTRONICS INC.

Inventor： Changeol Jo ,  Suchul Kim ,  Ikhyeon Kwon

IPC: F01C1/02 ,  F04C27/00 ,  F04C18/02 ,  F01C17/06 ,  F04C23/00

Abstract: A scroll compressor is provided in which one of a fixed scroll or an orbiting scroll is provided with at least one guide groove, and the other is provided with a self-rotation prevention member inserted into the at least one guide groove to revolve in the at least one guide groove and configured to prevent self-rotation of the orbiting scroll.

公开(公告)号：US09797400B2

公开(公告)日：2017-10-24

申请号：US14700304

申请日：2015-04-30

Applicant: LG ELECTRONICS INC.

Inventor： Juhwan Yun ,  Taeyeon Kim ,  Suchul Kim ,  Honggyun Jin

IPC: F01C1/02 ,  F01C1/063 ,  F04C2/00 ,  F04C27/00 ,  F04C29/12 ,  F04C23/00 ,  F04C28/24 ,  F04C28/26 ,  F04C18/02

CPC classification number: F04C27/005 ,  F04C18/0215 ,  F04C23/008 ,  F04C28/24 ,  F04C28/26 ,  F04C29/124

Abstract: A scroll compressor is provided that may include a casing including a rotational shaft, a cover fixed inside of the casing to partition the inside of the casing into a suction space and a discharge space, a first scroll revolved by rotation of the rotational shaft, a second scroll disposed on or at one side of the first scroll to define a compression chamber together with the first scroll, the second scroll including a discharge, through which a refrigerant pressed in the compression chamber may be discharged, a switching device movably disposed on or at one side of the discharge to selectively open and close the discharge, a back pressure portion including a moving guide that accommodates at least a portion of the switching device, and a top surface that covers one side of the switching device; and an adhesion preventer that reduces a contact area between the switching device and at least a portion of the back pressure portion.

公开(公告)号：US11199188B2

公开(公告)日：2021-12-14

申请号：US16911636

申请日：2020-06-25

Applicant: LG ELECTRONICS INC.

Inventor： Changeol Jo ,  Suchul Kim ,  Donghyun Sohn

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

Abstract: A scroll compressor may include a frame, an orbiting scroll provided with at least one first key groove, a non-orbiting scroll provided with at least one second key groove and coupled to the orbiting scroll to form a compression chamber, and an anti-rotation ring disposed between the frame and the orbiting scroll. The anti-rotation ring may include a ring, at least one first key that axially extends from a first surface of the ring and slidingly coupled to the at least one first key groove of the orbiting scroll, and at least one second key that axially extends from the first surface of the ring and slidingly coupled to the at least one second key groove of the non-orbiting scroll. The first and second keys may be provided along a circumferential direction. This may allow processability of a one-way anti-rotation ring. Further, increase in weight may be prevented while reducing deformation by providing a weight-reduced portion in addition to a reinforcing portion.