公开(公告)号：US11208991B2

公开(公告)日：2021-12-28

申请号：US16456927

申请日：2019-06-28

Applicant: LG Electronics Inc.

Inventor： Kiwon Noh ,  Kyunyoung Lee

IPC: F04B35/04 ,  F04B39/10 ,  F04B17/04 ,  F04B39/00

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：US10288054B2

公开(公告)日：2019-05-14

申请号：US15584334

申请日：2017-05-02

Applicant: LG ELECTRONICS INC.

Inventor： Sanghyun Lim ,  Kiwon Noh ,  Jeonguk Byun ,  Yunhyeok Yu ,  Kyungmin Lee

IPC: F04B39/00 ,  F04B39/10 ,  F04B35/04 ,  F04B53/12 ,  F04B39/12

Abstract: A linear compressor is provided. The linear compressor may include a suction valve with a plurality of wings. Each of the plurality of wings may include two first edge portions that extend in an outer direction of a fixing portion, and a second edge portion forming an outer circumferential portion of the wing. A distance between a first edge portion of a first wing among the plurality of wings and a second edge portion of a second wing among the plurality of wings gradually increases toward the outer direction of the suction valve.

公开(公告)号：US11781540B2

公开(公告)日：2023-10-10

申请号：US16929548

申请日：2020-07-15

Applicant: LG Electronics Inc.

Inventor： Kyunyoung Lee ,  Youngmun Lee ,  Kiwon Noh

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

CPC classification number: F04B35/045 ,  F04B39/0038 ,  F04B39/125 ,  F25B1/02 ,  F04B39/0061 ,  F25B2400/073

Abstract: A linear compressor includes a cylinder, a frame, and a discharge unit. The discharge unit includes a discharge cover coupled with the frame, a discharge plenum disposed inside the discharge cover to define a plurality of discharge spaces, and an insulating plenum provided in a shape corresponding to an inner surface of the discharge cover to contact the inner surface of the discharge cover.

公开(公告)号：US11725643B2

公开(公告)日：2023-08-15

申请号：US17060636

申请日：2020-10-01

Applicant: LG Electronics Inc.

Inventor： Kyunyoung Lee ,  Kiwon Noh

IPC: F04B35/04 ,  F04B39/10 ,  F04B39/00 ,  F04B17/04 ,  F04B53/14

CPC classification number: F04B35/045 ,  F04B39/0016 ,  F04B39/1086 ,  F04B17/046 ,  F04B53/14

Abstract: A piston for a compressor and a compressor including the same are disclosed. The piston is used in a compressor which compresses and discharges refrigerant suctioned into a cylinder. The piston includes a cylindrical slider and a head. The slider has an outer diameter corresponding to an inner diameter of the cylinder and defines a suction space in which the refrigerant suctioned in the cylinder is received. The head is coupled to the slider, in which a compression space is provided in the front and a suction space is provided in the rear, and in which a suction port communicating with the suction space and the compression space is formed, in which the head includes an inner body and an outer body surrounding the inner body, and the suction port is formed between the inner body and the outer body.

公开(公告)号：US11378069B2

公开(公告)日：2022-07-05

申请号：US17022881

申请日：2020-09-16

Applicant: LG ELECTRONICS INC.

Inventor： Kichul Choi ,  Youngpil Kim ,  Kiwon Noh

IPC: F04B35/04 ,  F04B39/12 ,  F04B39/00 ,  F04B53/14 ,  F04B53/00

Abstract: A compressor is disclosed. The compressor compressing and discharging a refrigerant sucked into a cylinder includes a cylinder forming a compression space of the refrigerant and having a cylindrical shape; a piston configured to reciprocate in the cylinder along an axial direction and having a cylindrical shape; a suction valve disposed at a front of the piston; a plate disposed in a rear of the piston, the plate comprising a flow groove into which the refrigerant is sucked; and a rod extending along the axial direction, one end of the rod being disposed on the suction valve, and other end of the rod being disposed on the plate.

公开(公告)号：US11255577B2

公开(公告)日：2022-02-22

申请号：US16457543

申请日：2019-06-28

Applicant: LG Electronics Inc.

Inventor： Kiwon Noh ,  Jungsik Park ,  Kyunyoung Lee ,  Jongwoo Lee

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

Abstract: Provided is a linear compressor. Provided is a linear compressor. The linear compressor includes a shell defining an internal space, a compressor body disposed in the internal space, and a passage guide disposed between the shell and the compressor body. The passage guide may include a first guide part extending along an inner surface of the shell in an axial direction and a second guide part extending from the first guide part to the compressor body in a radial direction.

公开(公告)号：US11231025B2

公开(公告)日：2022-01-25

申请号：US16692520

申请日：2019-11-22

Applicant: LG Electronics Inc.

Inventor： Kwangwoon Ahn ,  Donghan Kim ,  Kiwon Noh ,  Joonsung Park

IPC: F04B39/16 ,  F04B35/04 ,  F04B39/02 ,  F04B39/12 ,  F04B53/16 ,  F16C33/10 ,  F04B53/18 ,  F04B53/20 ,  F16C32/06

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：US09890772B2

公开(公告)日：2018-02-13

申请号：US14804425

申请日：2015-07-21

Applicant: LG ELECTRONICS INC.

Inventor： Kiwon Noh ,  Kyungmin Lee ,  Jeehyun Kim

IPC: F04B35/04 ,  F04B39/10

CPC classification number: F04B35/045 ,  F04B39/10 ,  F04B39/102 ,  F04B39/1033 ,  Y10T137/7934 ,  Y10T137/7936

Abstract: A linear compressor is provided that may include a shell in which a discharge port is provided, a cylinder disposed in the shell to define a compression space for a refrigerant, a piston disposed to be reciprocated in an axial direction within the cylinder, a discharge valve disposed on or at one side of the cylinder to selectively discharge the refrigerant compressed in the compression space, the discharge valve including an insertion protrusion, and a valve spring coupled to the discharge valve to provide a restoring force to the discharge valve. The valve spring may include a spring body having a central portion defined at a portion corresponding to a center of the cylinder, and an insertion hole defined in the spring body. The insertion hole may be coupled to the insertion protrusion of the discharge valve. The central portion of the spring body may be spaced apart from a central portion of the insertion hole.

公开(公告)号：US20170321672A1

公开(公告)日：2017-11-09

申请号：US15584334

申请日：2017-05-02

Applicant: LG ELECTRONICS INC.

Inventor： Sanghyun LIM ,  Kiwon Noh ,  Jeonguk Byun ,  Yunhyeok Yu ,  Kyungmin Lee

IPC: F04B35/04 ,  F04B39/12

CPC classification number: F04B35/045 ,  F04B39/0005 ,  F04B39/108 ,  F04B39/122 ,  F04B53/123

Abstract: A linear compressor is provided. The linear compressor may include a suction valve with a plurality of wings. Each of the plurality of wings may include two first edge portions that extend in an outer direction of a fixing portion, and a second edge portion forming an outer circumferential portion of the wing. A distance between a first edge portion of a first wing among the plurality of wings and a second edge portion of a second wing among the plurality of wings gradually increases toward the outer direction of the suction valve.

公开(公告)号：US12044225B2

公开(公告)日：2024-07-23

申请号：US17559448

申请日：2021-12-22

Applicant: LG ELECTRONICS INC.

Inventor： Kiwon Noh ,  Kichul Choi

IPC: F04B39/00 ,  F04B35/04

CPC classification number: F04B39/0061 ,  F04B35/045 ,  F04B39/0005 ,  F04B39/0027 ,  F04B39/0083

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.