公开(公告)号：US11118579B2

公开(公告)日：2021-09-14

申请号：US16502910

申请日：2019-07-03

Applicant: LG Electronics Inc.

Inventor： Wooju Jeon ,  Donghan Kim ,  Kichul Choi

IPC: F04B39/16 ,  F04B35/04

Abstract: Provided is a linear compressor. The linear compressor includes a filter bracket seated on a gas inflow part passing through a cylinder and a filter assembly including a filter member seated on the filter bracket.

公开(公告)号：US11976650B2

公开(公告)日：2024-05-07

申请号：US17091546

申请日：2020-11-06

Applicant: LG Electronics Inc.

Inventor： Wooju Jeon ,  Youngpil Kim ,  Kyungmin Lee ,  Sangik Son

IPC: F04B53/14 ,  F04B53/16

CPC classification number: F04B53/14 ,  F04B53/162 ,  F04B2201/02

Abstract: A compressor and a method of manufacturing the same are disclosed. The compressor includes a piston having formed therein a suction space, in which refrigerant gas is sucked; and a cylinder in which a piston is accommodated, the cylinder defining a compression space that is configured, based on the piston reciprocating in an axial direction, to compress the refrigerant gas therein. A plurality of grooves having a partial spherical shape and having a diameter of 10 micrometers is formed in an outer circumferential surface of the piston or an inner circumferential surface of the cylinder.

公开(公告)号：US11746767B2

公开(公告)日：2023-09-05

申请号：US17381654

申请日：2021-07-21

Applicant: LG ELECTRONICS INC.

Inventor： Sangik Son ,  Wooju Jeon ,  Youngkyun Lim ,  Donghan Kim

IPC: F04B35/04 ,  F04B39/02 ,  F04B39/12 ,  F04B39/00 ,  F04B53/18 ,  F04B53/16

CPC classification number: F04B35/045 ,  F04B39/0005 ,  F04B39/0292 ,  F04B39/122 ,  F04B53/18 ,  F04B53/162

Abstract: A linear compressor includes a cylinder that defines a compression space of a refrigerant and has a cylindrical shape, and a piston disposed in the cylinder and reciprocating along an axis of the cylinder. The cylinder includes a gas inlet formed on an outer circumferential surface of the cylinder, a supply port radially passing through the cylinder and communicating with the gas inlet, and a recess communicating with the supply port and formed on an inner circumferential surface of the cylinder. An angle formed by an axial cross section of the recess and a straight line extending the supply port and an angle formed by the axial cross section of the recess and a straight line extending the inner circumferential surface of the cylinder each are an acute angle.

公开(公告)号：US11965500B2

公开(公告)日：2024-04-23

申请号：US17078468

申请日：2020-10-23

Applicant: LG Electronics Inc.

Inventor： Sangik Son ,  Youngpil Kim ,  Kyungmin Lee ,  Wooju Jeon

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

CPC classification number: F04B35/045 ,  F04B39/0005 ,  F04B39/12 ,  F04B53/146 ,  F04B39/0016 ,  F04B39/0061 ,  F05B2210/14 ,  F25B2400/073

Abstract: A compressor includes: a cylinder defining a compression space, a piston structure accommodated in the cylinder and including a mount member and a guide member, the guide member being configured to reciprocate inside the compression space of the cylinder in an axial direction to compress a refrigerant gas therein and a magnet frame configured to support a mover, the mover being coupled to the piston structure and configured to move together with the piston structure. The mount member connects the guide member to the magnet frame and the guide member is configured to be rotated with respect to the mount member.

公开(公告)号：US11725644B2

公开(公告)日：2023-08-15

申请号：US17381650

申请日：2021-07-21

Applicant: LG ELECTRONICS INC.

Inventor： Sangik Son ,  Wooju Jeon ,  Donghan Kim

IPC: F04B37/00 ,  F04B53/14 ,  F04B53/16

CPC classification number: F04B37/00 ,  F04B53/14 ,  F04B53/16

Abstract: A linear compressor includes a cylinder that defines a compression space of a refrigerant and has a cylindrical shape, and a piston disposed in the cylinder and reciprocating along an axis of the cylinder. The cylinder includes a gas inlet on an outer circumferential surface and a supply port radially passing through the cylinder and communicating with the gas inlet. The gas inlet includes a first gas inlet and a second gas inlet disposed behind the first gas inlet, and the supply port includes a first supply port communicating with the first gas inlet and a second supply port disposed behind the first supply port and communicating with the second gas inlet. A flow rate passing through the first supply port is different from a flow rate passing through the second supply port.

公开(公告)号：US11261855B2

公开(公告)日：2022-03-01

申请号：US16678956

申请日：2019-11-08

Applicant: LG Electronics Inc.

Inventor： Wooju Jeon ,  Donghan Kim ,  Youngpil Kim ,  Eonpyo Hong

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

Abstract: Disclosed herein is a linear compressor. The linear compressor includes a piston, a cylinder, a frame, a first bearing gap formed between an inner circumferential surface of the frame and the outer circumferential surface of the cylinder, a second bearing gap formed between an inner circumferential surface of the cylinder and the outer circumferential surface of the piston, a bearing inflow passage and a bearing side passage formed in the cylinder such that fluid flows from the first bearing gap to the second bearing gap.

公开(公告)号：US11808262B2

公开(公告)日：2023-11-07

申请号：US17324219

申请日：2021-05-19

Applicant: LG ELECTRONICS INC.

Inventor： Sangik Son ,  Wooju Jeon ,  Jaehyeok Lee ,  Donghan Kim

IPC: F04B53/18 ,  F04B39/02 ,  F16C29/02 ,  F04B35/04

CPC classification number: F04B53/18 ,  F04B39/0276 ,  F04B39/0292 ,  F16C29/025 ,  F04B35/045

Abstract: A linear compressor includes a cylinder that defines a compression space of a refrigerant and has a cylindrical shape, and a piston disposed in the cylinder and reciprocating along an axis of the cylinder. The cylinder includes a supply port radially passing through the cylinder, and a recess formed on an inner circumferential surface of the cylinder and communicating with the supply port. The supply port includes a first supply port and a second supply port disposed in a rear of the first supply port, and the recess includes a first recess and a second recess disposed in a rear of the first recess. The first recess and the second recess are formed in different shapes.

公开(公告)号：US11644025B2

公开(公告)日：2023-05-09

申请号：US17078552

申请日：2020-10-23

Applicant: LG Electronics Inc.

Inventor： Sangik Son ,  Youngpil Kim ,  Kyungmin Lee ,  Wooju Jeon

IPC: F04B39/16 ,  F04B35/04 ,  F04B39/12 ,  F04B39/02 ,  B01D39/16 ,  B01D46/02

CPC classification number: F04B39/16 ,  F04B35/045 ,  F04B39/0292 ,  F04B39/123 ,  F04B39/126 ,  B01D39/1692 ,  B01D46/02 ,  F05B2210/14

Abstract: A compressor includes a cylinder comprising a cylinder body which has a cylindrical shape and defining a compression space for refrigerant gas, a piston configured to be reciprocated in an axial direction within the cylinder body and to compress the refrigerant gas in the compression space, and a frame in which the cylinder is received, the frame defining a gas hole, one side of the gas hole communicating with outside so that the refrigerant gas is introduced, the other side of the gas hole extending up to an inner circumferential surface so as to guide the refrigerant gas.

公开(公告)号：US11002265B2

公开(公告)日：2021-05-11

申请号：US16502868

申请日：2019-07-03

Applicant: LG Electronics Inc.

Inventor： Wooju Jeon ,  Donghan Kim ,  Kichul Choi

IPC: F04B39/02 ,  F04B39/12

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：US12241460B2

公开(公告)日：2025-03-04

申请号：US18011432

申请日：2021-12-13

Applicant: LG Electronics Inc.

Inventor： Wooju Jeon ,  Donghan Kim ,  Sangik Son ,  Jaehyeok Lee

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

Abstract: A linear compressor is provided. The linear compressor includes a cylinder, a piston configured to reciprocate inside the cylinder, the piston including a head portion and a sliding portion extending rearward from a radially outer edge of the head portion, a supporter including a plate disposed at a rear of the piston, an elastic body disposed in the piston, the elastic body including an outer side coupled to an inner circumferential surface of the piston, and a rod configured to extend axially, the rod including one side coupled to a radially central area of the elastic body and other side connected to a radially central area of the plate.