公开(公告)号：US20220235514A1

公开(公告)日：2022-07-28

申请号：US17583797

申请日：2022-01-25

Applicant: LG Electronics Inc.

Inventor： Jungsik PARK ,  Yanggyu KIM ,  Ilyoung PARK ,  Sanghyun JOO ,  Jangseok LEE

IPC: D06F43/08 ,  D06F43/02 ,  D06F43/00

Abstract: A washing machine includes: a frame, a drum receiving laundry, a washing chamber including (i) a first housing defining an opening and a space into which the drum is inserted, (ii) a barrier surrounding the opening and coupled to the first housing, and (iii) a second housing surrounding a first surface of the barrier and coupled to the first housing, a storage tank receiving carbon dioxide to be supplied to the drum, a distillation chamber separating contaminants dissolved in liquid carbon dioxide, an electronic circuit, and a configuration unit. The configuration unit includes a pipe moving the carbon dioxide, a first compressor and a second compressor compressing the carbon dioxide discharged after washing is completed in the drum and moving the compressed carbon dioxide into the storage tank, and an oil separator separating oil from the carbon dioxide compressed in the first compressor and the second compressor.

公开(公告)号：US20200370557A1

公开(公告)日：2020-11-26

申请号：US16796416

申请日：2020-02-20

Applicant: LG Electronics Inc.

Inventor： Jehyeon MOON ,  Bumsuk KIM ,  Yicheol CHOI ,  Sanghyun JOO

IPC: F04C18/02 ,  F04C23/02

Abstract: The present disclosure provides an electric compression and expansion apparatus comprising a main housing comprising a motor chamber, a motor part housed in the motor chamber, a rotary shaft part extending in a length direction and coupled to the motor part, a compression part coupled to one side of the rotary shaft part in the length direction, and an expansion part coupled to another side of the rotary shaft part in the length direction. The rotary shaft part is configured to rotate integrally with the motor part, and the compression part is configured to rotate integrally with the rotary shaft part to compress refrigerant. The expansion part is configured to rotate integrally with the rotary shaft part to expand the compressed refrigerant.

公开(公告)号：US20200232462A1

公开(公告)日：2020-07-23

申请号：US16693940

申请日：2019-11-25

Applicant: LG ELECTRONICS INC.

Inventor： Ilyoung PARK ,  Yicheol CHOI ,  Sanghyun JOO ,  Junyoung LIM

IPC: F04C18/02 ,  F04C27/00

Abstract: A motor operated compressor includes an orbiting scroll that defines a compression chamber together with a fixed scroll. The compressor includes a main frame disposed around and supporting the orbiting scroll. The main frame defines a back-pressure chamber together with the orbiting scroll. The compressor includes a groove disposed in one of the orbiting scroll and the main frame. A first sealing member is inserted into the groove. A second sealing member is inserted into the groove to elastically press the first sealing member into close contact with the orbiting scroll or the main frame. A radial distance (a) between an outer wall of the groove and the first sealing member is 6 to 8% (0.06≤a/W≤0.08) of a difference (W) between an outer radius (OR) and an inner radius (IR) of the first sealing member (W=OR−IR).

公开(公告)号：US20220235510A1

公开(公告)日：2022-07-28

申请号：US17557955

申请日：2021-12-21

Applicant: LG Electronics Inc.

Inventor： Yicheol CHOI ,  Ilyoung PARK ,  Sanghyun JOO ,  Jangseok LEE

IPC: D06F37/30 ,  D06F39/12 ,  D06F37/04

Abstract: A washing machine is configured to perform washing using carbon dioxide and includes a first housing that defines an inner space and an opening, a drum disposed in the inner space of the first housing and configured to accommodate laundry, a barrier that covers the opening of the first housing and is coupled to the first housing, a second housing that covers a surface of the barrier and is coupled to the first housing, and a motor assembly coupled to the barrier. The motor assembly includes a stator, a rotor configured to rotate the drum, a bearing housing, a rotary shaft disposed in the bearing housing, the rotary shaft having a first end coupled to the rotor and a second end coupled to the drum, and a first sealing part and a second sealing part that are disposed in the bearing housing and coupled to the rotary shaft.

公开(公告)号：US20200080557A1

公开(公告)日：2020-03-12

申请号：US16516550

申请日：2019-07-19

Applicant: LG ELECTRONICS INC.

Inventor： Ilyoung PARK ,  Jehyeon MOON ,  Junyoung LIM ,  Sanghyun JOO

IPC: F04C18/02 ,  F04C29/12 ,  F04C27/00 ,  F04C29/00

Abstract: A motor-operated compressor includes a casing having a motor chamber that accommodates a driving motor. The compressor also includes a frame. A first scroll having a first spiral wrap is connected to one side of the frame. A second scroll is provided between the frame and the first scroll. The second scroll has a second spiral wrap that engages with the first spiral warp to form compression chambers between the first and second spiral wraps. The compressor also includes a rotation shaft connected at one end to the driving motor and at an opposite end to the second scroll. The compressor includes a back pressure space defined by a balance weight axially separated from a rear surface of the second scroll. A back pressure passage fluidly connects the compression chambers with the back pressure space.