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公开(公告)号：US11209001B2
公开(公告)日：2021-12-28
申请号：US16693450
申请日：2019-11-25
Applicant: LG ELECTRONICS INC.
Inventor： Cheolhwan Kim , Yongkyu Choi , Taekyoung Kim
Abstract: A scroll compressor is provided that may include an orbiting scroll having an orbiting wrap, and which performs an orbiting motion; and a fixed scroll having a fixed wrap to form a compression chamber including a suction chamber, an intermediate pressure chamber, and a discharge chamber, by being engaged with the orbiting wrap. A wrap thickness of the fixed wrap may be greater than a wrap thickness of the orbiting wrap within a range which forms the suction chamber. With such a configuration, even if the fixed scroll or the orbiting scroll is thermally-expanded, a transformation of the fixed wrap at a suction side may be prevented. This may prevent a gap between the fixed wrap and the orbiting wrap at an opposite side to the suction side, thereby enhancing compression efficiency.
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公开(公告)号：US09951773B2
公开(公告)日：2018-04-24
申请号：US14708436
申请日：2015-05-11
Applicant: LG ELECTRONICS INC.
Inventor： Yongkyu Choi , Cheolhwan Kim , Byeongchul Lee
CPC classification number: F04C18/0269 , F04C18/0215 , F04C23/008
Abstract: A compressor is provided. The compressor may include a fixed wrap, and an orbiting scroll having an orbiting wrap engaged with the fixed wrap to form compression chambers. The fixed wrap and the orbiting wrap may have irregular wrap curves. At least one interference avoiding portion at which a spacing between the wraps is greater than an orbiting radius or at least one gap compensating portion at which the spacing between the wraps is smaller than the orbiting radius, in a state in which a center of the fixed scroll and a center of the orbiting scroll are aligned with each other, may be provided on a sidewall surface of the fixed wrap or the orbiting wrap, whereby frictional loss or abrasion due to interference between the wraps or a refrigerant leakage due to a gap between the wraps may be prevented.
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公开(公告)号：US12098718B2
公开(公告)日：2024-09-24
申请号：US17972767
申请日：2022-10-25
Applicant: LG ELECTRONICS INC.
Inventor： Yongkyu Choi , Kiyoul Noh , Bumdong Sa
IPC: F04C18/344 , F04C14/12 , F04C23/00 , F04C29/00
CPC classification number: F04C14/12 , F04C18/344 , F04C23/008 , F04C29/0035 , F04C2240/50
Abstract: A rotary compressor, including a cylinder, an inner peripheral surface of which is defines a compression space, provided with a suction port configured to communicate with the compression space to suction and provide refrigerant to the compression space; a roller rotatably provided in the compression space of the cylinder, and including with a plurality of vane slots at predetermined intervals along an outer peripheral surface, the plurality of vanes each providing a back pressure at one side thereinside; a plurality of vanes slidably inserted into the plurality of vane slots, respectively, to rotate together with the roller, front end surfaces of the plurality of vanes coming into contact with an inner periphery of the cylinder due to the back pressure to partition the compression space into a plurality of compression chambers; and a main bearing and a sub bearing provided at both ends of the cylinder, respectively.
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公开(公告)号：US12018682B2
公开(公告)日：2024-06-25
申请号：US17707382
申请日：2022-03-29
Applicant: LG Electronics Inc.
Inventor： Yongkyu Choi , Kangwook Lee , Jaeha Lee
CPC classification number: F04C18/0207 , F04C23/005 , F04C23/008 , F04C29/12 , F04C2240/30 , F04C2240/40 , F04C2240/60
Abstract: A scroll compressor of an air conditioner includes a refrigerant discharge tube through which refrigerant discharged to an inner space of a casing is discharged into a refrigeration cycle. The scroll compressor further including a venturi tube disposed adjacent to the refrigerant discharge tube in the inner space of the casing, and a liquid refrigerant discharge tube having a first end connected to the venturi tube and a second end opposite to the first end and communicating with the inner space of the casing at a lower side of the refrigerant discharge tube, where liquid refrigerant can be suppressed from excessively stagnating in the inner space of the casing.
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公开(公告)号：US11473579B2
公开(公告)日：2022-10-18
申请号：US16848188
申请日：2020-04-14
Applicant: LG Electronics Inc.
Inventor： Yongkyu Choi , Inho Won , Cheolhwan Kim
IPC: F03C2/00 , F03C4/00 , F04C2/00 , F04C18/00 , F04C18/02 , F04C23/00 , F04C28/26 , F04C15/06 , F04C29/12 , F04C29/02
Abstract: There is disclosed a scroll compressor according to the present disclosure in which a discharge port is formed at a central portion thereof, and a pair of two compression chambers continuously moving toward the discharge port are formed, and a plurality of bypass portions are formed at each interval along a movement path of each compression chamber in the both compression chambers, and compression gradients of the both compression chambers are formed to be different from each other, wherein when an interval between a bypass portion closest to the discharge port and another bypass portion adjacent to the bypass portion among the bypass portions of each compression chamber is defined as a first interval, respectively, a first interval of a second bypass portion belonging to a compression chamber having a relatively larger compression gradient is formed to be smaller than that of a first bypass portion belonging to the other compression chamber between the both compressor chambers.
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Patent Agency Ranking
公开(公告)号：US10711782B2
公开(公告)日：2020-07-14
申请号：US15817515
申请日：2017-11-20
Applicant: LG ELECTRONICS INC.
Inventor： Jungsun Choi , Yongkyu Choi , Cheolhwan Kim
Abstract: A scroll compressor is provided that may include a first wrap, and a second wrap engaged with the first wrap and coupled to be eccentric to a center of rotation of a rotational shaft to form a compression chamber, moving toward a central portion, together with the first wrap while performing an orbiting motion with respect to the first wrap. A height of at least one of the first wrap or the second wrap may be formed to have at least two inclination machining amounts which decrease toward the central portion, and the inclination machining amount of the central portion may be larger than the inclination machining amount of an edge portion or a wrap rigidity at a specific section, thereby preventing frictional loss or abrasion of the wrap and breakage of the wrap.
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公开(公告)号：US10202978B2
公开(公告)日：2019-02-12
申请号：US15817584
申请日：2017-11-20
Applicant: LG ELECTRONICS INC.
Inventor： Yongkyu Choi , Kangwook Lee , Cheolhwan Kim
Abstract: A scroll compressor is provided that may include a first compression chamber, a second compression chamber separated from the first compression chamber and having a greater compression ratio than the first compression chamber, a first discharge port that communicates with the first compression chamber and provided with a first discharge inlet and a first discharge outlet, and a second discharge port separated from the first discharge port, that communicates with the second compression chamber, and provided with a second discharge inlet and a second discharge outlet, the second discharge inlet having a larger sectional area than the first discharge inlet. The first discharge inlet and the first discharge outlet may have a same cross section, and the second discharge inlet and the second discharge outlet may have a same cross section. Accordingly, a discharge delay in each compression chamber may be prevented in advanced, and thus, compression loss may be suppressed.
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公开(公告)号：US11739752B2
公开(公告)日：2023-08-29
申请号：US17941743
申请日：2022-09-09
Applicant: LG Electronics Inc.
Inventor： Yongkyu Choi , Inho Won , Cheolhwan Kim
IPC: F03C2/00 , F03C4/00 , F04C2/00 , F04C18/00 , F04C18/02 , F04C23/00 , F04C28/26 , F04C15/06 , F04C29/12 , F04C29/02
CPC classification number: F04C18/0261 , F04C15/06 , F04C18/0215 , F04C18/0246 , F04C23/008 , F04C28/26 , F04C29/12 , F04C29/023 , F04C2210/26 , F04C2240/40 , F04C2240/60
Abstract: A scroll compressor includes a discharge port formed at a central portion thereof, a pair of two compression chambers continuously moving toward the discharge port, and a plurality of bypass portions formed at each interval along a movement path of each compression chamber in the both compression chambers. Compression gradients of the both compression chambers are different from each other. An interval between a bypass portion closest to the discharge port and another bypass portion adjacent to the bypass portion among the bypass portions of each compression chamber is defined as a first interval. The first interval of a second bypass portion belonging to a compression chamber having a relatively larger compression gradient is smaller than the first interval of a first bypass portion belonging to the other compression chamber.
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公开(公告)号：US11339785B2
公开(公告)日：2022-05-24
申请号：US15956970
申请日：2018-04-19
Applicant: LG ELECTRONICS INC.
Inventor： Yongkyu Choi , Cheolhwan Kim , Byeongchul Lee
Abstract: A compressor is provided. The compressor may include a fixed wrap, and an orbiting scroll having an orbiting wrap engaged with the fixed wrap to form compression chambers. The fixed wrap and the orbiting wrap may have irregular wrap curves. At least one interference avoiding portion at which a spacing between the wraps is greater than an orbiting radius or at least one gap compensating portion at which the spacing between the wraps is smaller than the orbiting radius, in a state in which a center of the fixed scroll and a center of the orbiting scroll are aligned with each other, may be provided on a sidewall surface of the fixed wrap or the orbiting wrap, whereby frictional loss or abrasion due to interference between the wraps or a refrigerant leakage due to a gap between the wraps may be prevented.
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公开(公告)号：US11047386B2
公开(公告)日：2021-06-29
申请号：US16186221
申请日：2018-11-09
Applicant: LG Electronics Inc.
Inventor： Yongkyu Choi , Inho Won , Cheolhwan Kim
IPC: F03C2/00 , F03C4/00 , F04C2/00 , F04C18/00 , F04C18/02 , F04C23/00 , F04C28/26 , F04C15/06 , F04C29/12 , F04C29/02
Abstract: A scroll compressor includes a discharge port at a central portion, and a pair of scrolls that define two compression chambers continuously moving toward the discharge port, and a plurality of bypass portions defined at with an each interval along a compression path of each compression chamber. Compression gradients of the both compression chambers are different from each other. An interval between a bypass portion closest to the discharge port and another bypass portion is defined as a first interval. The first interval of a the bypass portion belonging to a compression chamber having a relatively larger compression gradient is smaller than that of the bypass portion belonging to the other compression chamber.
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