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公开(公告)号：US10584905B2
公开(公告)日：2020-03-10
申请号：US15585368
申请日：2017-05-03
Applicant: LG ELECTRONICS INC.
Inventor： Kyeongweon Lee , Jeehyun Kim , Joonsung Park , Byunghoon Woo , Youngcheol Han
Abstract: A linear compressor is provided that may include a casing, a compressor body accommodated in the casing and defining a compression space for a refrigerant, a suction pipe coupled to a first side of the casing to supply the refrigerant to the compression space, a discharge pipe coupled to a second side of the casing to discharge the refrigerant compressed in the compression space outside of the casing, a process pipe coupled to the second side of the casing spaced apart from the discharge pipe to inject a refrigerant for supplement into the casing, and a separator that separates a mixed fluid of a refrigerant and oil injected through the process pipe.
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公开(公告)号：US09989052B2
公开(公告)日：2018-06-05
申请号：US14643068
申请日：2015-03-10
Applicant: LG ELECTRONICS INC.
Inventor： Joonsung Park , Donghan Kim , Byungju Kim
CPC classification number: F04B53/14 , C23C28/32 , C23C28/343 , F04B35/045 , F04B39/0005 , F05C2253/12 , Y10T29/49238
Abstract: A linear compressor and a method of manufacturing a linear compressor are provided. The linear compressor may include a shell including a suction inlet, a cylinder having a compression space, in which a refrigerant suctioned in through the suction inlet may be compressed, a piston reciprocated within the cylinder, a first surface treatment disposed on an outer surface of the piston, the first surface treatment having a first hardness value, which is a measured hardness value, and a buffer disposed between the outer surface of the piston and the first surface treatment. The buffer may have a second hardness value, which is a measured hardness value. The first hardness value of the first surface treatment may be greater than the second hardness value of the buffer.
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公开(公告)号：US11261856B2
公开(公告)日：2022-03-01
申请号：US16414114
申请日：2019-05-16
Applicant: LG Electronics Inc.
Inventor： Kwangwoon Ahn , Donghan Kim , Kiwon Noh , Joonsung Park
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.
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Patent Agency Ranking
公开(公告)号：US10280914B2
公开(公告)日：2019-05-07
申请号：US15585394
申请日：2017-05-03
Applicant: LG ELECTRONICS INC.
Inventor： Youngcheol Han , Donghan Kang , Joonsung Park , Kwangwoon Ahn , Sanghyun Lim
Abstract: A linear compressor is provided. The linear compressor may include a cylinder; a frame coupled to an outer side of the cylinder; a cylinder groove defined on an outer circumferential surface of the cylinder; and a sealing member provided in the cylinder groove. The sealing member may be provided between the outer circumferential surface of the cylinder and an inner circumferential surface of the frame.
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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.
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公开(公告)号：US11175079B2
公开(公告)日：2021-11-16
申请号：US16775917
申请日：2020-01-29
Applicant: LG ELECTRONICS INC.
Inventor： Kyeongweon Lee , Jeehyun Kim , Joonsung Park , Byunghoon Woo , Youngcheol Han
Abstract: A linear compressor is provided that may include a casing, a compressor body accommodated in the casing and defining a compression space for a refrigerant, a suction pipe coupled to a first side of the casing to supply the refrigerant to the compression space, a discharge pipe coupled to a second side of the casing to discharge the refrigerant compressed in the compression space outside of the casing, a process pipe coupled to the second side of the casing spaced apart from the discharge pipe to inject a refrigerant for supplement into the casing, and a separator that separates a mixed fluid of a refrigerant and oil injected through the process pipe.
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公开(公告)号：US09845797B2
公开(公告)日：2017-12-19
申请号：US14424061
申请日：2013-08-30
Applicant: LG ELECTRONICS INC.
Inventor： Sunghyun Ki , Kiwon Noh , Kwangwoon Ahn , Kyeongbae Park , Simoon Jeon , Joonsung Park
CPC classification number: F04B35/045 , F04B17/03 , F04B35/04 , F04B39/0292 , F04B39/16 , F04B49/065 , F04B49/20 , F04B53/004 , F04B53/20
Abstract: 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.
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公开(公告)号：US20170321937A1
公开(公告)日：2017-11-09
申请号：US15585368
申请日：2017-05-03
Applicant: LG ELECTRONICS INC.
Inventor： Kyeongweon LEE , Jeehyun Kim , Joonsung Park , Byunghoon Woo , Youngcheol Han
CPC classification number: F25B43/02 , F04B35/045 , F04B39/0284 , F04B39/121 , F04B39/16
Abstract: A linear compressor is provided that may include a casing, a compressor body accommodated in the casing and defining a compression space for a refrigerant, a suction pipe coupled to a first side of the casing to supply the refrigerant to the compression space, a discharge pipe coupled to a second side of the casing to discharge the refrigerant compressed in the compression space outside of the casing, a process pipe coupled to the second side of the casing spaced apart from the discharge pipe to inject a refrigerant for supplement into the casing, and a separator that separates a mixed fluid of a refrigerant and oil infected through the process pipe.
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