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公开(公告)号：US09863410B2
公开(公告)日：2018-01-09
申请号：US14643422
申请日：2015-03-10
Applicant: LG ELECTRONICS INC.
Inventor： Junghae Kim , Kyoungkyu Lee , Kwangwoon Ahn
CPC classification number: F04B39/0292 , F04B35/045 , F04B39/122 , F04B39/123 , F04B39/126 , F04B53/008
Abstract: A linear compressor is provided. The linear compressor may include a shell including a suction inlet, a cylinder provided in the shell to define a compression space for a refrigerant, a piston reciprocated in an axial direction within the cylinder, a discharge valve provided on or at one side of the cylinder to selectively discharge the refrigerant compressed in the compression space, at least one nozzle disposed in the cylinder to introduce at least a portion of the refrigerant discharged through the discharge valve into the cylinder, and a passage to guide the refrigerant discharged from the discharge valve to the at least one nozzle.
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公开(公告)号：US12258957B2
公开(公告)日：2025-03-25
申请号：US17358302
申请日：2021-06-25
Applicant: LG Electronics Inc.
Inventor： Sangjin Song , Junghae Kim , Chulgi Roh
Abstract: A linear compressor includes: a piston configured to reciprocate in an axial direction, and a cylinder that is provided on a radially outer side of the piston to accommodate the piston and that defines a compression space with the piston. The cylinder includes: a gas hole defined at the cylinder such that a first end of the gas hole is at an outer circumferential surface of the cylinder and a second end of the gas hole is at an inner circumferential surface of the cylinder, and a gas pocket that is in communication with the gas hole and that is recessed from the inner circumferential surface of the cylinder, where a length of the gas pocket in the axial direction of the cylinder is longer than a length of the gas pocket in a circumferential direction of the cylinder.
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公开(公告)号：US11725642B2
公开(公告)日：2023-08-15
申请号：US16929546
申请日：2020-07-15
Applicant: LG Electronics Inc.
Inventor： Geonwoo Kim , Junghae Kim , Jaeyong Jang , Donghan Kang , Jinwoong Jung , Chulgi Roh
CPC classification number: F04B35/045 , F04B39/122 , F04B39/16 , B01D46/0005 , B01D46/0012 , B01D46/0047 , B01D2279/35 , F04B39/023 , F04B39/0292 , F04B53/20 , F05B2210/14 , F05B2260/98
Abstract: A linear compressor includes a compressor body configured to compress a refrigerant. The compressor body includes a cylinder, a discharge valve, a groove, a gas hole, and a flow restrictor. The cylinder receives a piston. The discharge valve is configured to open and close one side of the cylinder and define a compression space for the refrigerant together with the piston. The groove is defined in an outer circumferential surface of the cylinder and into which at least a portion of the refrigerant discharged through the discharge valve is introduced. The gas hole is defined in the groove to pass through the cylinder. The flow restrictor includes twisting wires made of different materials and is disposed to be wound around the groove.
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公开(公告)号：US10724508B2
公开(公告)日：2020-07-28
申请号：US15491100
申请日：2017-04-19
Applicant: LG ELECTRONICS INC.
Inventor： Junghae Kim , Hyunsoo Kim , Jeonguk Byun , Jongwoo Lee , Eonpyo Hong
Abstract: A linear compressor is provided. The linear compressor may include a shell having a cylindrical shape, a shell cover that covers both open ends of the shell, a cylinder accommodated into the shell and defining a compression space for a refrigerant, a piston that reciprocates within the cylinder in an axial direction to compress the refrigerant within the compression space, a motor assembly including a motor that provides power to the piston and a stator cover that supports the motor, and resonant springs seated on the stator cover that support the piston to allow the piston to perform a resonant motion. The resonant springs may be circularly arranged at three points having a same interval around a center in an axial direction.
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公开(公告)号：US12228120B2
公开(公告)日：2025-02-18
申请号：US18207100
申请日：2023-06-07
Applicant: LG Electronics Inc.
Inventor： Junghae Kim , Sangeun Bae , Seunguk Kim
Abstract: A linear compressor includes a cylinder, a piston axially reciprocating in the cylinder, a first muffler unit coupled to the piston, a back cover that is disposed at a rear of the piston and defines an opening at a radially central area, and a second muffler unit coupled to the opening. The first muffler unit includes an inner guide disposed in the piston and a first intake muffler disposed at a rear of the inner guide. The second muffler unit includes a second intake muffler that communicates with the first intake muffler and is coupled to the opening, a muffler body surrounding the second intake muffler, and a muffler cover disposed between the muffler body and the back cover.
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Patent Agency Ranking
公开(公告)号：US11773833B2
公开(公告)日：2023-10-03
申请号：US16904794
申请日：2020-06-18
Applicant: LG ELECTRONICS INC.
Inventor： Junghae Kim , Hyunsoo Kim , Jeonguk Byun , Jongwoo Lee , Eonpyo Hong
CPC classification number: F04B9/06 , F04B17/03 , F04B35/045 , F04B39/00 , F04B39/121 , F04B53/16
Abstract: A linear compressor is provided. The linear compressor may include a shell having a cylindrical shape, a shell cover that covers both open ends of the shell, a cylinder accommodated into the shell and defining a compression space for a refrigerant, a piston that reciprocates within the cylinder in an axial direction to compress the refrigerant within the compression space, a motor assembly including a motor that provides power to the piston and a stator cover that supports the motor, and resonant springs seated on the stator cover that support the piston to allow the piston to perform a resonant motion. The resonant springs may be circularly arranged at three points having a same interval around a center in an axial direction.
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公开(公告)号：US10927828B2
公开(公告)日：2021-02-23
申请号：US15496261
申请日：2017-04-25
Applicant: LG ELECTRONICS INC.
Inventor： Junghae Kim , Jeehyun Kim , Kiwon Noh , Yunhyeok Yu , Kyungmin Lee
Abstract: A linear compressor is provided that may include a shell, a cylinder accommodated into the shell and defining a compression space for a refrigerant, a frame to which the cylinder may be fixed, a piston that reciprocates within the cylinder in an axial direction and compresses a refrigerant supplied to the compression space, a discharge valve that discharges the refrigerant compressed in the compression space, a discharge cover coupled to the frame and defining a discharge space in which the refrigerant discharged from the compression space by opening of the discharge valve may be collected, a valve spring that supports the discharge valve, and a support integrally formed with the valve spring by insert injection molding and coupled to the discharge cover. The valve spring may define one or more holes filled with a molding liquid used to form the support in the insert injection molding of the support.
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公开(公告)号：US09841011B2
公开(公告)日：2017-12-12
申请号：US14666693
申请日：2015-03-24
Applicant: LG ELECTRONICS INC.
Inventor： Junghae Kim , Changkyu Kim , Sunghyun Ki , Youngcheol Han , Kyeongweon Lee
CPC classification number: F04B35/04 , F04B35/045 , F04B39/121 , H02K1/145 , H02K1/185 , H02K7/08 , H02K33/16
Abstract: An linear compressor and a linear motor for a linear compressor is provided. The linear compressor may include a shell, in which a suction inlet may be provided, a cylinder disposed in the shell to define a compression space for a refrigerant, a frame coupled to an outer side of the cylinder, a piston reciprocated in an axial direction within the cylinder, a stator cover coupled to the frame, and a linear motor supported by the frame and the stator cover to provide power to the piston. The stator cover may include a body, and at least one frame coupling portion coupled to the frame. The at least one frame coupling portion may extend from the body toward the frame.
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公开(公告)号：US10539127B2
公开(公告)日：2020-01-21
申请号：US15584338
申请日：2017-05-02
Applicant: LG ELECTRONICS INC.
Inventor： Sangmin Lee , Sunghyun Ki , Junghae Kim , Jihyun Yoon , Jaeyong Yang
Abstract: The linear compressor is provided that may include a shell having first and second ends open, a first shell cover that covers a first end of the shell, a second shell that covers a second end of the shell, a compressor body accommodated in the shell to compress a refrigerant, a first support that supports a first end of the compressor body within the shell and coupled to the first shell cover in a state of being spaced apart from the shell, and a second support that supports a second end of the compressor body and fixed to the shell.
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公开(公告)号：US10323630B2
公开(公告)日：2019-06-18
申请号：US15496077
申请日：2017-04-25
Applicant: LG ELECTRONICS INC.
Inventor： Donghan Kang , Junghae Kim , Changkyu Kim , Hyunsoo Kim , Hyosang Yu
Abstract: A linear compressor is provided that may include a shell; a compressor body accommodated in the shell to compress a refrigerant; a discharge cover assembly through which the refrigerant compressed in the compressor body may be discharged; a cover pipe that extends from the discharge cover assembly to discharge the refrigerant discharged into the discharge cover assembly to an outside of the discharge cover assembly; a discharge pipe coupled to the shell to discharge the refrigerant flowing along the cover pipe to an outside of the shell; a loop pipe having a first end connected to the cover pipe and a second end connected to the discharge pipe; and a coupling member that respectively couples both the first and second ends of the loop pipe to the cover pipe and the discharge pipe. The coupling member may include a connection member, a first portion of which is inserted into the loop pipe and a second portion of which is inserted into the discharge pipe or the cover pipe. The connection member may be formed of a steel material. At least one of the discharge pipe or the cover pipe may be formed of a steel material.
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