公开(公告)号：US20200080553A1

公开(公告)日：2020-03-12

申请号：US16542685

申请日：2019-08-16

Applicant: LG Electronics Inc.

Inventor： Kichul CHOI ,  Wooju JEON

IPC: F04B53/20 ,  F04B39/12 ,  F04B53/14 ,  F04B39/16 ,  B01D39/20 ,  B01D39/16 ,  B01D46/10 ,  B01D46/00 ,  B32B5/02 ,  B32B27/12 ,  B32B27/36 ,  B32B1/08

Abstract: Provided is a linear compressor. The linear compressor includes a cylinder disposed in a shell to define a compression space for a refrigerant, a piston installed to reciprocate in the cylinder, a motor assembly that allows the piston to move in an axial direction of the cylinder and thereby to compress the refrigerant introduced into the compression space, a nozzle which is provided in the cylinder and through which a portion of the refrigerant introduced into the compression space passes, and a cylinder filter installed in the cylinder and disposed at an inlet-side of the nozzle. At least one or more surfaces of the cylinder filter are oil-repellent coated.

公开(公告)号：US20210215145A1

公开(公告)日：2021-07-15

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

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：US20190234391A1

公开(公告)日：2019-08-01

申请号：US16265372

申请日：2019-02-01

Applicant: LG Electronics Inc.

Inventor： Kiwon NOH ,  Kichul CHOI

IPC: F04B39/06 ,  H02K33/14 ,  H02K9/22 ,  F04B35/04 ,  F04B39/12

CPC classification number: F04B39/06 ,  F04B35/04 ,  F04B35/045 ,  F04B39/12 ,  F04B39/14 ,  F25B31/023 ,  H02K9/22 ,  H02K33/14

Abstract: A linear compressor includes a cylinder that defines a compressor space and that is configured to compress refrigerant in the compressor space, a piston located in the cylinder and configured to perform a reciprocating motion in an axial direction relative to the cylinder, a mover coupled to the piston and configured to transmit a driving force to the piston to cause the piston to perform the reciprocating motion, a stator that defines a cylinder space that receives the cylinder, in which the stator is configured to generate the driving force together with the mover, and a supporting unit that includes an overlap portion that covers at least a portion of the stator, that is coupled to the stator, and that contacts the stator.

公开(公告)号：US20200088181A1

公开(公告)日：2020-03-19

申请号：US16692913

申请日：2019-11-22

Applicant: LG Electronics Inc.

Inventor： Wooju JEON ,  Donghan KIM ,  Kichul CHOI

IPC: F04B39/02

Abstract: Provided is a linear compressor. The linear compressor includes a piston, a cylinder, and a bearing inflow passage. The bearing inflow passage includes a first bearing inflow passage extending inward from an outer circumferential surface of the cylinder in the radial direction and a second bearing inflow passage extending from the first bearing inflow passage to an inner circumferential surface of the cylinder. The second bearing inflow passage extends from the inner circumferential surface of the cylinder in a circumferential direction.

公开(公告)号：US20200011316A1

公开(公告)日：2020-01-09

申请号：US16502868

申请日：2019-07-03

Applicant: LG Electronics Inc.

Inventor： Wooju JEON ,  Donghan KIM ,  Kichul CHOI

IPC: F04B39/02

Abstract: Provided is a linear compressor. The linear compressor includes a piston, a cylinder, and a bearing inflow passage. The bearing inflow passage includes a first bearing inflow passage extending inward from an outer circumferential surface of the cylinder in the radial direction and a second bearing inflow passage extending from the first bearing inflow passage to an inner circumferential surface of the cylinder. The second bearing inflow passage extends from the inner circumferential surface of the cylinder in a circumferential direction.

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：US20180320678A1

公开(公告)日：2018-11-08

申请号：US16031220

申请日：2018-07-10

Applicant: LG ELECTRONICS INC.

Inventor： Kichul CHOI ,  Kwangwoon AHN ,  Donghan KIM

IPC: F04B39/02 ,  F04B39/12 ,  F04B35/04 ,  F04B53/00

CPC classification number: F04B39/0292 ,  F04B35/045 ,  F04B39/126 ,  F04B39/16 ,  F04B53/008

Abstract: A reciprocating compressor is provided. The reciprocating compressor may include a cylinder having a compression space, a piston inserted into the cylinder to define the compression space while being reciprocated, the piston having a suction passage to communicate with the compression space, a gas bearing having at least one bearing hole that passes through the cylinder, so that a refrigerant gas may be injected between the cylinder and the piston to support the piston with respect to the cylinder, and a flow resister disposed at an outer circumferential surface of the cylinder or at one side of the cylinder to restrict a flow of the refrigerant gas flowing through or toward the at least one bearing hole.

公开(公告)号：US20170314542A1

公开(公告)日：2017-11-02

申请号：US15497567

申请日：2017-04-26

Applicant: LG ELECTRONICS INC.

Inventor： Seongho HA ,  Donghan KIM ,  Jaeyoun LIM ,  Kichul CHOI ,  Jungwan HEO

IPC: F04B39/00 ,  F04B35/04 ,  F04B39/12 ,  F04B39/16

Abstract: A linear compressor is provided. The linear compressor may include a piston having a first piston groove and a second piston groove.

公开(公告)号：US20230145653A1

公开(公告)日：2023-05-11

申请号：US17793263

申请日：2020-03-31

Applicant: LG ELECTRONICS INC.

Inventor： Kichul CHOI ,  Youngpil KIM ,  Kiwon NOH ,  Eonpyo HONG

IPC: F04B39/00 ,  F16F15/073 ,  F16J1/09 ,  F04B35/04

CPC classification number: F04B39/0044 ,  F04B39/0016 ,  F16F15/073 ,  F16J1/09 ,  F04B35/045 ,  F05B2210/14 ,  F05B2260/964

Abstract: A compressor is provided. The compressor compressing and discharging a refrigerant sucked into a cylinder comprises the cylinder configured to form a compressed space of the refrigerant and having a cylindrical shape; a piston configured to reciprocate axially in the cylinder and having a cylindrical shape; an intake valve disposed at a front of the piston; a fixing member disposed outside the piston; a rod comprising one end disposed at the intake valve and configured to extend axially; a first elastic member connected to the fixing member and other side of the rod; a second elastic member disposed to be spaced apart from a rear of the first elastic member and connected to the fixing member and the other side of the rod; and a first spacer insert-injected with the first elastic member and the second elastic member.

公开(公告)号：US20220213879A1

公开(公告)日：2022-07-07

申请号：US17533433

申请日：2021-11-23

Applicant: LG ELECTRONICS INC.

Inventor： Kichul CHOI ,  Eonpyo HONG

IPC: F04B39/00 ,  F04B39/16

Abstract: A linear compressor includes: a shell including an intake pipe configured to suction a refrigerant, a piston configured to reciprocate in an axial direction and including a piston body, and an intake muffler coupled to the piston and configured to flow the refrigerant into the piston body and reduce a noise from the refrigerant. The intake muffler includes a first muffler disposed inside the piston body, a second muffler disposed at a rear side of the first muffler and in fluid communication with the first muffler, and a third muffler including a third muffler body having a cylindrical shape with an empty interior and configured to accommodate a portion of a rear end of the first muffler and the second muffler in the third muffler body. The third muffler body includes a streamlined portion having diameters reduced toward a rear side of the third muffler body in the axial direction.