公开(公告)号：US11808256B2

公开(公告)日：2023-11-07

申请号：US17222638

申请日：2021-04-05

申请人： LG Electronics Inc.

发明人： Youngmun Lee ,  Kyunyoung Lee ,  Kiwon Noh

IPC分类号： F04B39/10 ,  F04B39/00 ,  F04B53/10 ,  F04B35/04

CPC分类号： F04B39/10 ,  F04B35/045 ,  F04B39/0005 ,  F04B53/10

摘要： Provided are a discharge plenum integrated with a valve stopper and a linear compressor including the discharge plenum. The valve stopper includes a radial member that extends radially and an axial member that extends axially from a radial inner end of the radial member. The axial member may have a tubular shape. The axial member may define a slot flow path that extends axially. The radial member may include a peripheral hole that extends axially. The radial inner side of the radial member may define a central hole of the axial member. The slot flow path and the peripheral hole may minimize a pressure drop and energy loss of a high-pressure fluid flowing from a compression portion to a discharge portion.

公开(公告)号：US11555490B2

公开(公告)日：2023-01-17

申请号：US16457484

申请日：2019-06-28

申请人： LG Electronics Inc.

发明人： Kiwon Noh ,  Kyunyoung Lee

IPC分类号： F04B39/12 ,  F04B35/04

摘要： The present invention relates to a linear compressor. A discharge unit of the linear compressor according to an aspect of the present invention includes a discharge cover coupled with the frame. In addition, the discharge cover includes a cover flange portion and a chamber portion. At this time, the cover flange portion includes a flange main body having a main body penetration portion and a main body extension portion provided outward in a radial direction so as to face the main body penetration portion, and a flange coupling portion having a flange coupling hole into which a fastening member for coupling with the frame is inserted.

公开(公告)号：US11415126B2

公开(公告)日：2022-08-16

申请号：US16941007

申请日：2020-07-28

申请人： LG ELECTRONICS INC.

发明人： Youngmun Lee ,  Kyunyoung Lee ,  Kiwon Noh

IPC分类号： F04B53/14 ,  F04B53/16

摘要： 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：US11248594B2

公开(公告)日：2022-02-15

申请号：US16836039

申请日：2020-03-31

申请人： LG Electronics Inc.

发明人： Kiwon Noh ,  Kyunyoung Lee ,  Youngmun Lee

IPC分类号： F04B35/04 ,  F04B39/00 ,  F25B31/02 ,  F25B1/02

摘要： 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：US09989051B2

公开(公告)日：2018-06-05

申请号：US14804640

申请日：2015-07-21

申请人： LG ELECTRONICS INC.

发明人： Kiwon Noh ,  Kyungmin Lee ,  Jeehyun Kim

IPC分类号： F04B39/00 ,  F04B53/10 ,  F04B39/08 ,  F04B39/10 ,  F04B39/12 ,  F04B35/04

CPC分类号： F04B53/1035 ,  F04B35/045 ,  F04B39/08 ,  F04B39/102 ,  F04B39/1033 ,  F04B39/121 ,  F04B53/1022 ,  F04B53/1032 ,  Y10T137/7922 ,  Y10T137/7932 ,  Y10T137/7934 ,  Y10T137/7936

摘要： A linear compressor is provided that may include a shell in which a discharge port may be 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, a valve spring coupled to the discharge valve to provide a restoring force, and a stopper coupled to the valve spring to restrict deformation of the valve spring. The stopper may include a guide recessed in a direction in which the valve spring is deformed to reduce an impulse between the stopper and the valve spring.

公开(公告)号：US09890775B2

公开(公告)日：2018-02-13

申请号：US14666340

申请日：2015-03-24

申请人： LG ELECTRONICS INC.

发明人： Junghae Kim ,  Kyoungkyu Lee ,  Kiwon Noh

IPC分类号： F04B39/10 ,  F04B39/12 ,  F04B53/10 ,  F04B35/04

CPC分类号： F04B39/102 ,  F04B35/045 ,  F04B39/125 ,  F04B53/1035 ,  F04B2201/06062

摘要： A linear compressor may include a shell, a cylinder provided in the shell to define a compression space for a refrigerant, a frame to fix the cylinder to the shell, a piston reciprocated within the cylinder, a discharge valve disposed on or at one side of the cylinder, a discharge cover coupled to the frame and having at least one chamber to reduce pulsation of the refrigerant discharged through the discharge valve, and a valve spring disposed on the discharge cover to provide a restoring force to the discharge valve. The discharge cover may include a cover body having a discharge hole, through which the refrigerant discharged through the discharge valve may be discharged outside of the discharge cover, and a guide passage defined in the cover body to guide at least a portion of the refrigerant discharged through the discharge valve into the at least one chamber.

公开(公告)号：US09845797B2

公开(公告)日：2017-12-19

申请号：US14424061

申请日：2013-08-30

申请人： LG ELECTRONICS INC.

发明人： Sunghyun Ki ,  Kiwon Noh ,  Kwangwoon Ahn ,  Kyeongbae Park ,  Simoon Jeon ,  Joonsung Park

IPC分类号： F04B35/04 ,  F04B49/20 ,  F04B49/06 ,  F04B53/20 ,  F04B53/00 ,  F04B39/02 ,  F04B39/16 ,  F04B17/03

CPC分类号： F04B35/045 ,  F04B17/03 ,  F04B35/04 ,  F04B39/0292 ,  F04B39/16 ,  F04B49/065 ,  F04B49/20 ,  F04B53/004 ,  F04B53/20

摘要： The present disclosure relates to reciprocating compressor. The present invention can prevent friction loss or abrasion between a cylinder and a piston, which is caused when a hydraulic bearing is blocked with a foreign substance, by preventing the foreign substance mixed in refrigerant gas from flowing into the hydraulic bearing, and can improve compressor performance by preventing a specific volume in a compression space from increasing when high-temperature refrigerant gas discharged in the compression space is cooled, such that vibration noise of the compressor can be reduced since a gas guiding part offsets vibration and the noise generated when a refrigerant is discharged in the compression space. Furthermore, the number of vibrations of a mover is increased and a driving operation for removing foreign substances is carried out to increase the number of vibrations of a cylinder such that any foreign substance stuck in a gas hole can be cleaned, thereby increasing performance and reliability of the compressor.

公开(公告)号：US11746768B2

公开(公告)日：2023-09-05

申请号：US17401082

申请日：2021-08-12

申请人： LG Electronics Inc.

发明人： Sungchul Gong ,  Kiwon Noh

IPC分类号： F04B39/12

CPC分类号： F04B39/125

摘要： A linear compressor includes a frame, a cylinder disposed in the frame, a piston disposed in the cylinder and configured to reciprocate relative to the cylinder along an axis of the cylinder, a discharge valve disposed forward relative to the piston, and a discharge cover assembly coupled to the frame and disposed forward relative to the piston. The discharge cover assembly includes a discharge cover forming an inner space, a first discharge plenum disposed in the discharge cover and configured to partition the inner space into a plurality of discharge spaces, and a second discharge plenum disposed forward relative to the first discharge plenum and being in close contact with an inner surface of the discharge cover.

公开(公告)号：US11359617B2

公开(公告)日：2022-06-14

申请号：US16849186

申请日：2020-04-15

申请人： LG ELECTRONICS INC.

发明人： Youngmun Lee ,  Kiwon Noh

IPC分类号： F04B35/04 ,  F04B39/06 ,  F04B53/08 ,  F04B53/16 ,  F15B15/14 ,  F04B39/00 ,  F04B39/12

摘要： A compressor is disclosed. The compressor compressing and discharging a refrigerant sucked inside a cylinder includes a frame configured to support the cylinder, and a discharge cover assembly disposed in front of the frame. A gas layer is formed between the discharge cover assembly and the frame.

公开(公告)号：US11225958B2

公开(公告)日：2022-01-18

申请号：US16265372

申请日：2019-02-01

申请人： LG Electronics Inc.

发明人： Kiwon Noh ,  Kichul Choi

IPC分类号： F04B39/06 ,  F04B35/04 ,  F04B39/12 ,  F04B17/04 ,  H02K9/22 ,  H02K33/14 ,  F25B31/02

摘要： 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.