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公开(公告)号：USRE49234E1
公开(公告)日：2022-10-04
申请号：US16850400
申请日：2020-04-16
Applicant: LG ELECTRONICS INC.
Inventor： Taekyoung Kim , Cheolhwan Kim , Byeongchul Lee
Abstract: A scroll compressor is provided that may include a casing; an electric motor drive having a stator fixed within the casing, and a rotor rotatably provided within the stator; a rotational shall coupled to the rotor to rotate along with the rotor; a compression device disposed at a lower portion of the electric motor drive to receive a rotational force from the rotational shaft and compress a refrigerant; and an oil storage space located within the casing. A plurality of oil discharge paths to allow oil accumulated at an upper portion thereof to be discharged to the oil storage space may be formed on an outer circumferential surface of the compression device to be separated from each other, and an overall cross-sectional area of the plurality of oil discharge paths may be about 2 to about 12% of an inner diameter cross-sectional area of the casing brought into contact with or separated from an outer circumferential surface of the compression device in the compression device.
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公开(公告)号：US11434908B2
公开(公告)日：2022-09-06
申请号：US16914726
申请日：2020-06-29
Applicant: LG ELECTRONICS INC.
Inventor： Sang Baek Park , Jungsun Choi , Cheol Hwan Kim , Byeongchul Lee
IPC: F01C1/02 , F03C2/00 , F03C4/00 , F04C18/00 , F04C2/00 , F04C18/02 , F01C21/00 , F04C29/12 , F04C29/02 , F04C23/00
Abstract: A compressor is provided which is configured to allow lubrication of a thrust surface through an oil groove formed in a thrust surface of a fixed scroll. Also, a scroll compressor is provided which smoothly supplies oil to a thrust surface of a fixed scroll by including a fixed scroll having an oil groove formed in the thrust surface of a fixed scroll sidewall, and allows an injection pressure acting on an orbiting scroll in an upward direction to be added by supplying the oil guided to the oil groove to the thrust surface of the fixed scroll such that an overturn moment generated in the orbiting scroll may be offset.
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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：US11136981B2
公开(公告)日：2021-10-05
申请号：US16330855
申请日：2017-09-06
Applicant: LG ELECTRONICS INC.
Inventor： Sungyong Ahn , Jinho Kim , Junghoon Park , Junchul Oh , Byeongchul Lee , Jaeha Lee , Seheon Choi
Abstract: A scroll compressor may include a rotational shaft, the rotational shaft including a first frame support having an inner circumferential surface, into which a boss of a first scroll is inserted, and an outer circumferential surface that forms an outer surface of the rotational shaft; and at least one guide hole that extends from the inner circumferential surface to the outer circumferential surface.
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公开(公告)号：US10883500B2
公开(公告)日：2021-01-05
申请号：US15706911
申请日：2017-09-18
Applicant: LG ELECTRONICS INC.
Inventor： Jaesang Lee , Nayoung Jeon , Byeongchul Lee
IPC: F04C18/02
Abstract: A co-rotating scroll compressor is provided in which a bearing configured to support a scroll is displaced by a torque repulsive force, which is applied to the bearing due to compression repulsion of a compressed fluid, the torque repulsive force is converted into a sealing force of compression chambers, which are defined by wraps of co-rotating scrolls such that the sealing force of the compression chambers is increased, and in which a bearing housing is rotatably installed in a housing accommodation hole, a rotational center of a second scroll is positioned at a position eccentric from a rotational center of a bearing housing, the bearing housing is rotated by the torque repulsive force applied to the second scroll, some of the torque repulsive force is converted into the sealing force against a sealing disturbing force.
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Patent Agency Ranking
公开(公告)号：US10830237B2
公开(公告)日：2020-11-10
申请号：US15830161
申请日：2017-12-04
Applicant: LG ELECTRONICS INC.
Inventor： Yong Kyu Choi , Nara Han , Cheol Hwan Kim , Byeongchul Lee
IPC: F01C1/02 , F03C2/00 , F03C4/00 , F04C18/00 , F04C2/00 , F04C29/02 , F04C18/02 , F04C27/00 , F04C23/00
Abstract: A compressor is provided having an integrated flow path structure in which an oil flow path and an intermediate pressure flow path are integrated into one in a compression unit, thereby simplifying a flow path of the compression unit. The compressor may include at least one integrated flow path in which the oil flow path and the refrigerant gas flow are integrated into one in a fixed scroll. The at least one integrated flow path may connect an intermediate pressure chamber and a compression chamber in a compressors unit. The at least one integrated flow path may provide a compressed refrigerant in the compression chamber to the intermediate pressure chamber and provide oil in the intermediate pressure chamber to the compression chamber, simplifying the flow path of the compression unit.
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公开(公告)号：US10648470B2
公开(公告)日：2020-05-12
申请号：US15491051
申请日：2017-04-19
Applicant: LG ELECTRONICS INC.
Inventor： Yongkyu Choi , Kangwook Lee , Cheolhwan Kim , Byeongchul Lee
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. In a state in which the orbiting scroll and the fixed scroll are concentric with each other, when a distance between the orbiting wrap and the fixed wrap is defined as an orbiting radius, there exists an offset section having an interval larger than the orbiting radius, between a side surface of the orbiting wrap and a side surface of the fixed wrap which faces the orbiting wrap. With such a configuration, even if the fixed scroll or the orbiting scroll is transformed due to thermal expansion, interference between the fixed wrap and the orbiting wrap at a portion having a large transformation amount may be prevented. This may prevent a frictional loss or abrasion between the fixed wrap and the orbiting wrap. Further, this may restrict or minimize a gap between the fixed wrap and the orbiting wrap at an opposite side to the suction chamber, resulting in enhanced compression efficiency.
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公开(公告)号：US10227983B2
公开(公告)日：2019-03-12
申请号：US15244543
申请日：2016-08-23
Applicant: LG ELECTRONICS INC.
Inventor： Jaeha Lee , Junchul Oh , Seheon Choi , Byeongchul Lee
Abstract: A scroll compressor is provided that may include a casing; a drive motor; a fixed scroll that forms a compression space by being coupled to the orbiting scroll; and a discharge cover provided at an inner space of the casing, the discharge cover having a space that communicates with the compression space and separated from the inner space of the casing, and having one or more discharge hole on a side surface thereof, the one or more discharge hole providing communication between an inside and an outside of the space. With such a configuration, vibration noise of the scroll compressor may be more reduced in comparison with a case in which an oil separator is provided outside of the casing. Further, as an area of the one or more discharge hole and a volume of the space are optimized, efficiency of the scroll compressor may be enhanced.
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公开(公告)号：US10100832B2
公开(公告)日：2018-10-16
申请号：US14731589
申请日：2015-06-05
Applicant: LG ELECTRONICS INC.
Inventor： Taekyoung Kim , Cheolhwan Kim , Byeongchul Lee
Abstract: A scroll compressor is provided that may include a casing; an electric motor drive having a stator fixed within the casing, and a rotor rotatably provided within the stator; a rotational shaft coupled to the rotor to rotate along with the rotor; a compression device disposed at a lower portion of the electric motor drive to receive a rotational force from the rotational shaft and compress a refrigerant; and an oil storage space located within the casing. A plurality of oil discharge paths to allow oil accumulated at an upper portion thereof to be discharged to the oil storage space may be formed on an outer circumferential surface of the compression device to be separated from each other, and an overall cross-sectional area of the plurality of oil discharge paths may be about 2 to about 12% of an inner diameter cross-sectional area of the casing brought into contact with or separated from an outer circumferential surface of the compression device in the compression device.
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公开(公告)号：US09957962B2
公开(公告)日：2018-05-01
申请号：US14939327
申请日：2015-11-12
Applicant: LG ELECTRONICS INC.
Inventor： Yoonsung Choi , Byungkil Yoo , Jinho Kim , Byeongchul Lee
CPC classification number: F04C18/0215 , F04C18/0269 , F04C23/008
Abstract: A scroll compressor is provided that may include a casing including a rotational shaft, a first scroll rotated by rotation of the rotational shaft, the first scroll including a first head plate and a first wrap that extends from the first head plate in a first direction, and a second scroll that defines a plurality of compression chambers together with the first scroll, the second scroll including a second head plate and a second wrap that extends from the second head plate in a second direction. Each of the first and second wraps spirally may extend from an outer end toward an inner start end, and the first wrap may have a thickness greater than a thickness of the second wrap.
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