公开(公告)号：US20210108628A1

公开(公告)日：2021-04-15

申请号：US16943810

申请日：2020-07-30

Applicant: LG Electronics Inc.

Inventor： Kyunyoung LEE ,  Youngmun LEE ,  Donghan KIM ,  Kiwon NOH ,  Eonpyo HONG

IPC: F04B39/06 ,  F04B35/04 ,  F25B31/02 ,  F04B39/00

Abstract: A linear compressor includes a cylinder, a frame, and a discharge unit. The frame includes a discharge frame surface coupled to the discharge unit and a gas hole recessed from the discharge frame surface. The discharge unit includes a bearing refrigerant passage extending toward the gas hole so that a portion of the refrigerant flowing into the discharge space flows into the gas hole.

公开(公告)号：US20210054832A1

公开(公告)日：2021-02-25

申请号：US16836039

申请日：2020-03-31

Applicant: LG Electronics Inc.

Inventor： Kiwon NOH ,  Kyunyoung LEE ,  Youngmun LEE

IPC: F04B35/04 ,  F04B39/12

Abstract: The present disclosure relates to a linear compressor. The linear compressor according to an aspect of the present disclosure includes a shell, a cylinder, a piston, and a muffler. Also, an internal space in which at least a portion of the muffler is inserted is formed in the piston, and the muffler is disposed in contact with the inner wall of the piston forming the internal space.

公开(公告)号：US20200003454A1

公开(公告)日：2020-01-02

申请号：US16457485

申请日：2019-06-28

Applicant: LG Electronics Inc.

Inventor： Kiwon NOH ,  Kyunyoung LEE

IPC: F25B1/02 ,  F04B39/12 ,  F04B39/10 ,  F04B39/00 ,  F04B35/04

Abstract: Provided is a linear compressor. The linear compressor includes a shell defining an internal space and a compressor body disposed in the internal space. Also, the shell includes a shell body having both ends that are opened and a suction shell cover and a discharge shell cover, which are respectively coupled to both the ends of the shell body to close the internal space. Here, the discharge shell cover is provided in shape that is capable of assisting heat dissipation of the frame.

公开(公告)号：US20200003198A1

公开(公告)日：2020-01-02

申请号：US16456927

申请日：2019-06-28

Applicant: LG Electronics Inc.

Inventor： Kiwon NOH ,  Kyunyoung LEE

IPC: F04B35/04 ,  F04B39/12 ,  F04B39/10

Abstract: Disclosed is a linear compressor. The linear compressor according to the spirit of the present invention includes a cylinder forming a compression space for refrigerant and a discharge unit forming a discharge space for refrigerant into which refrigerant discharged from the compression space flows. The discharge unit includes a discharge cover having an inner space formed therein and a discharge plenum placed in the inner space. In this case, the discharge plenum includes a plenum flange extending radially, a plenum seating part, a plenum body, and a plenum extension part which extend from a radially inner side end of the plenum flange, and a plenum guide surface extending from a radially outer side end of the plenum flange toward the inner space.

公开(公告)号：US20190353155A1

公开(公告)日：2019-11-21

申请号：US16414114

申请日：2019-05-16

Applicant: LG Electronics Inc.

Inventor： Kwangwoon AHN ,  Donghan KIM ,  Kiwon NOH ,  Joonsung PARK

IPC: F04B39/16 ,  F04B35/04

Abstract: Provided is a linear compressor including a linear motor having a mover reciprocating with respect to a stator; a piston coupled to the mover to reciprocate; a cylinder into which the piston is slidingly inserted, the cylinder having an inner circumferential surface forming a bearing surface together with an external circumferential surface of the piston, the cylinder forming a compression space together with the piston, and the cylinder having at least one first hole formed through the inner circumferential surface of the cylinder and an outer circumferential surface of the cylinder to guide refrigerant discharged from the compression space to the bearing surface; and a porous member inserted into the outer circumferential surface of the cylinder and configured to cover the first hole, the porous member having multiple micropores smaller than the first hole.

公开(公告)号：US20230193890A1

公开(公告)日：2023-06-22

申请号：US17874737

申请日：2022-07-27

Applicant: LG ELECTRONICS INC.

Inventor： Kiwon NOH

IPC: F04B39/00 ,  F04B53/00

CPC classification number: F04B39/0027 ,  F04B53/004

Abstract: A linear compressor includes a casing, a back cover supported in the casing, an intake flow path member coupled to the back cover, and an intake muffler of which at least a portion linearly reciprocates inside the intake flow path member. The intake flow path member includes a first hole that is formed in a front surface and is penetrated by the intake muffler, and a flow path guide that extends axially forward from a rear surface and has an opened front and an opened rear. A noise of a refrigerant passing through the intake flow path member can be reduced through an expansion space between the flow path guide and an inner surface of the intake flow path member.

公开(公告)号：US20220220953A1

公开(公告)日：2022-07-14

申请号：US17559448

申请日：2021-12-22

Applicant: LG ELECTRONICS INC.

Inventor： Kiwon NOH ,  Kichul CHOI

IPC: F04B39/00

Abstract: A linear compressor includes a shell including an intake pipe configured to suction a refrigerant, a cylinder provided inside the shell, a piston configured to reciprocate inside the cylinder, the piston including a piston body and a piston flange, and an intake muffler coupled to the piston and configured to flow a refrigerant suctioned through the intake pipe into the piston body and reduce a flow noise of the suctioned refrigerant. The intake muffler includes a first muffler disposed in the piston body, a second muffler disposed below the first muffler and configured to communicate with the first muffler, and a third muffler configured to accommodate a portion of a rear end of the first muffler and the second muffler.

公开(公告)号：US20210215153A1

公开(公告)日：2021-07-15

申请号：US16941007

申请日：2020-07-28

Applicant: LG ELECTRONICS INC.

Inventor： Youngmun LEE ,  Kyunyoung LEE ,  Kiwon NOH

IPC: F04B53/16 ,  F04B53/14

Abstract: A piston for a compressor is disclosed. The piston for the compressor compressing and discharging a refrigerant sucked into a cylinder includes a sliding portion disposed in the cylinder and having a suction space to receive the sucked refrigerant, a head portion coupled to the sliding portion, a compression space being formed at a front of the head portion and the suction space being formed at a rear of the head portion, the head portion comprising a suction port communicating the suction space with the compression space, a press-fit cap coupled to the front of the head portion, the press-fit cap comprising a suction hole connected to the suction port, and a first elastic member disposed between the press-fit cap and the head portion. A gas layer is formed between the head portion, the press-fit cap, and the first elastic member.

公开(公告)号：US20190107312A1

公开(公告)日：2019-04-11

申请号：US16157825

申请日：2018-10-11

Applicant: LG Electronics Inc.

Inventor： Kiwon NOH ,  Kwangwoon AHN

IPC: F25B31/02 ,  F04B17/03 ,  F04B19/22 ,  F04B19/04 ,  F04B53/16 ,  F04B53/18 ,  F04B53/08 ,  F16C32/06 ,  F16C33/72 ,  H02K33/12

Abstract: A linear compressor includes a linear motor in which a mover reciprocates with respect to a stator; a compression unit configured to form a compression space in a cylinder while a piston connected to the mover of the linear motor reciprocates in the cylinder; a plurality of discharge covers in which each discharge space is provided to accommodate refrigerant discharged from the compression space, and the each discharge space is sequentially communicated therewith; and a gas bearing configured to guide part of refrigerant accommodated in a discharge space of any one of the plurality of discharge covers between the cylinder and the piston to lubricate between the cylinder and the piston with the refrigerant, wherein at least part of a discharge cover in contact with the compression unit is exposed to an outside of a discharge space of another discharge cover.

公开(公告)号：US20180195504A1

公开(公告)日：2018-07-12

申请号：US15865957

申请日：2018-01-09

Applicant: LG Electronics Inc.

Inventor： Kyungmin LEE ,  Kiwon NOH

IPC: F04B39/12 ,  F04B35/04 ,  F04B37/18 ,  F04B39/06 ,  F04B53/00

CPC classification number: F04B39/127 ,  F04B35/04 ,  F04B35/045 ,  F04B37/18 ,  F04B39/0061 ,  F04B39/06 ,  F04B39/121 ,  F04B39/123 ,  F04B39/125 ,  F04B53/008

Abstract: A linear compressor includes a cylinder that defines a compression space configured to receive refrigerant, a piston that is located in the cylinder and that is configured to move in an axial direction of the cylinder and to compress refrigerant in the cylinder, a discharge cover that defines a discharge space configured to receive refrigerant discharged from the compression space, a frame configured to accommodate the cylinder and coupled to the discharge cover at a front side of the frame, and a plurality of blocking members that are located between the discharge cover and at least one of the frame or the cylinder. The plurality of blocking members are configured to restrict heat transfer to at least one of the frame or the cylinder from refrigerant discharged from the compression space.