公开(公告)号：US20170241419A1

公开(公告)日：2017-08-24

申请号：US15432032

申请日：2017-02-14

Applicant: LG ELECTRONICS INC.

Inventor： Honggyun Jin ,  Sangwoo Joo

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

CPC classification number: F04C29/04 ,  F04C18/0215 ,  F04C28/26 ,  F04C28/28 ,  F04C29/0085 ,  F04C29/12 ,  F04C2240/30

Abstract: A hermetic compressor is provided that may include a casing having an inner space, an orbiting scroll provided in the inner space, a non-orbiting scroll engaged with the orbiting scroll to form compression chambers, a high/low pressure dividing plate that divides the inner space into high and low pressure portions, and an overheat preventing unit coupled to a surface of the dividing plate at the high pressure portion, the overheat preventing unit having a communication hole formed through the dividing plate to communicate the high and low pressure portions, and having a valve spaced from the dividing plate by a predetermined interval to selectively open/close the communication hole according to a temperature variation of the high pressure portion, whereby transfer of a refrigerant temperature of the low pressure portion to the overheat preventing unit through the dividing plate may be prevented, and the compressor may be quickly stopped upon being overheated, thereby being protected from damage.

公开(公告)号：US09353745B2

公开(公告)日：2016-05-31

申请号：US13949380

申请日：2013-07-24

Applicant: LG ELECTRONICS INC.

Inventor： Munyoung Lee ,  Sihyun Jang ,  Honggyun Jin

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

CPC classification number: F04C18/0207 ,  F04C18/0215 ,  F04C23/008 ,  F04C27/005

Abstract: A scroll compressor having a scroll supporter and/or movement limiter is provided. The scroll compressor may include a casing, a main frame fixedly installed within the casing, a first scroll rotatably supported by the main frame, a second scroll supported by the main frame, such that the second scroll is movable in a vertical direction with respect to the first scroll, a guide that guides movement of the second scroll in the vertical direction, while preventing the second scroll from being rotated in an axial direction; and a movement limiter disposed on an inner wall of the casing and separated from the second scroll, the movement limiter being configured to limit a movement distance of the second scroll in an upward direction.

Abstract translation: 提供了一种具有滚动支撑件和/或移动限制器的涡旋压缩机。 涡旋压缩机可以包括壳体，固定地安装在壳体内的主框架，由主框架可旋转地支撑的第一涡卷，由主框架支撑的第二涡卷，使得第二涡卷机可相对于 所述第一涡旋件，引导件，其引导所述第二涡旋件沿垂直方向的运动，同时防止所述第二涡旋件沿轴向旋转; 以及移动限制器，其设置在所述壳体的内壁上并与所述第二涡旋件分离，所述移动限制器构造成限制所述第二涡卷在向上方向上的移动距离。

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：US11215181B2

公开(公告)日：2022-01-04

申请号：US16397490

申请日：2019-04-29

Applicant: LG ELECTRONICS INC.

Inventor： Honggyun Jin ,  Sangwoo Joo

IPC: F03C2/00 ,  F03C4/00 ,  F04C18/00 ,  F04C2/00 ,  F04C28/26 ,  F04C23/00 ,  F04C18/02 ,  F04C28/18 ,  F04C29/00 ,  F04C29/12

Abstract: A scroll compressor according to the present invention includes a casing, an orbiting member provided within the casing and performing an orbiting motion, a non-orbiting member forming a compression chamber together with the orbiting member, the compression chamber having a suction chamber, an intermediate pressure chamber and a discharge chamber, a communication passage communicating inside and outside of the compression chamber with each other, an opening/closing valve assembly provided outside the non-orbiting member within the casing and opening and closing the communication passage, and a switching valve assembly provided within the casing and operating the opening/closing valve assembly, whereby a facilitated fabrication, improved valve responsiveness and a relaxed restriction for a specification of a valve can be achieved, and also an over-compression can be prevented by an installation of a check valve, and an assembling efficiency can be improved by installing two valve assemblies outside the non-orbiting member.

公开(公告)号：US10428818B2

公开(公告)日：2019-10-01

申请号：US15388584

申请日：2016-12-22

Applicant: LG ELECTRONICS INC.

Inventor： Honggyun Jin ,  Sangwoo Joo

IPC: F04C28/24 ,  F04C28/26 ,  F04C18/02 ,  F04C23/00 ,  F04C28/10 ,  F04C29/12

Abstract: A scroll compressor according to the present invention includes a casing having a hermetic inner space divided into a low pressure portion and a high pressure portion, an orbiting scroll disposed within the inner space of the casing and performing an orbiting motion, a non-orbiting scroll forming a compression chamber together with the orbiting scroll, the compression chamber having a suction chamber, an intermediate pressure chamber and a discharge chamber, a back pressure chamber assembly coupled to the non-orbiting scroll to form a back pressure chamber, a valve accommodation groove formed on at least one of the non-orbiting scroll or the back pressure chamber assembly, a bypass hole formed from the intermediate pressure chamber into the valve accommodation groove in a penetrating manner, a check valve accommodated in the valve accommodation groove and opening and closing the bypass hole according to pressure of the intermediate pressure chamber, a communication passage communicating the valve accommodation groove and the low pressure portion with each other, and a control valve selectively opening and closing the communication passage, whereby a facilitated fabrication, improved responsiveness and relaxed restriction for a specification of a valve can be achieved.

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：US10428819B2

公开(公告)日：2019-10-01

申请号：US15390221

申请日：2016-12-23

Applicant: LG ELECTRONICS INC.

Inventor： Honggyun Jin ,  Sangwoo Joo

IPC: F03C2/00 ,  F03C4/00 ,  F04C18/00 ,  F04C28/26 ,  F04C18/02 ,  F04C28/18 ,  F04C29/00 ,  F04C29/12 ,  F04C23/00 ,  F04C28/16 ,  F04C28/24

Abstract: A scroll compressor according to the present invention includes a casing, an orbiting member provided within the casing and performing an orbiting motion, a non-orbiting member forming a compression chamber together with the orbiting member, the compression chamber having a suction chamber, an intermediate pressure chamber and a discharge chamber, a communication passage configured to bypass a refrigerant of the compression chamber into the casing, an opening/closing valve assembly configured to open and close the communication passage, and a switching valve assembly configured to operate the opening/closing valve assembly, the switching valve assembly being provided outside the casing and connected to the opening/closing valve assembly, whereby an installation of the bypass hole can result in prevention of over-compression and an installation of a control valve for varying a capacity outside the casing can result in reduction of costs for the control valve.

公开(公告)号：US20180209422A1

公开(公告)日：2018-07-26

申请号：US15874538

申请日：2018-01-18

Applicant: LG ELECTRONICS INC.

Inventor： Sangwoo Joo ,  Honggyun Jin

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

CPC classification number: F04C28/26 ,  F04C18/0215 ,  F04C18/0261 ,  F04C23/008 ,  F04C28/24 ,  F04C29/12 ,  F04C2240/30 ,  F04C2250/102

Abstract: A scroll compressor formed having a casing, a compression unit provided in an inner space of the casing to form a compression chamber composed of an inner pocket and an outer pocket by a pair of two scrolls, and bypass holes provided in the compression unit to bypass refrigerant suctioned into the compression chamber to the inner space of the casing to vary compression capacity, wherein the bypass holes are formed in a compression chamber constituting the inner pocket and a compression chamber constituting an outer to pocket to be located in compression chambers having different pressures along a movement path of the respective compression chambers.

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：US11204035B2

公开(公告)日：2021-12-21

申请号：US16534122

申请日：2019-08-07

Applicant: LG ELECTRONICS INC.

Inventor： Honggyun Jin ,  Sangwoo Joo

IPC: F03C2/00 ,  F03C4/00 ,  F04C18/00 ,  F04C2/00 ,  F04C28/26 ,  F04C18/02 ,  F04C23/00 ,  F04C28/16 ,  F04C28/24 ,  F04C28/18 ,  F04C29/00 ,  F04C29/12

Abstract: A scroll compressor according to the present invention includes a casing, an orbiting member provided within the casing and performing an orbiting motion, a non-orbiting member forming a compression chamber together with the orbiting member, the compression chamber having a suction chamber, an intermediate pressure chamber and a discharge chamber, a communication passage configured to bypass a refrigerant of the compression chamber into the casing, an opening/closing valve assembly configured to open and close the communication passage, and a switching valve assembly configured to operate the opening/closing valve assembly, the switching valve assembly being provided outside the casing and connected to the opening/closing valve assembly, whereby an installation of the bypass hole can result in prevention of over-compression and an installation of a control valve for varying a capacity outside the casing can result in reduction of costs for the control valve.