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公开(公告)号：US11181109B2
公开(公告)日：2021-11-23
申请号：US16414110
申请日：2019-05-16
Applicant: LG Electronics Inc.
Inventor： Nayoung Jeon , Taekyoung Kim , Cheolhwan Kim
Abstract: A scroll compressor includes a refrigerant discharge flow passage and an oil recovery flow passage that are separated from each other. The scroll compressor further includes a flow passage separation unit configured to separate an intermediate space between a drive portion and a compression portion into an inner space communicating with the refrigerant flow passage and an outer space communicating with the oil flow passage to separate the refrigerant discharge path from the oil recovery path.
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公开(公告)号：US10697456B2
公开(公告)日：2020-06-30
申请号：US15451803
申请日：2017-03-07
Applicant: LG ELECTRONICS INC.
Inventor： Howon Lee , Jungsun Choi , Cheolhwan Kim
Abstract: A scroll compressor is provided that may include a motor; an orbiting scroll; a fixed scroll coupled to the orbiting scroll, and forming a compression chamber together with the orbiting scroll; a frame coupled to the fixed scroll, and configured to support the orbiting scroll; a sealing member mounting groove having a ring shape, and formed on a first surface of the frame contacting the orbiting scroll, or a second surface of the orbiting scroll contacting the frame; and a sealing member including a first sealing portion formed in a ring shape, inserted into the sealing member mounting groove so as to be moveable in an axial direction, and configured to perform a sealing operation between the frame and the orbiting scroll in the axial direction and including a second sealing portion extending from the first sealing portion in the axial direction, and configured to perform a sealing operation between the frame and the orbiting scroll in a radial direction by contacting an outer side wall surface of the sealing member mounting groove A thickness of the second sealing portion in the radial direction may be smaller than a thickness of the first sealing portion in the axial direction.
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公开(公告)号：US10590931B2
公开(公告)日：2020-03-17
申请号：US16016303
申请日：2018-06-22
Applicant: LG Electronics Inc.
Inventor： Hansaem Park , Soojin Kang , Kangwook Lee , Hojong Jeong , Cheolhwan Kim
Abstract: A scroll compressor according to the present disclosure and an air conditioner having the scroll compressor may include a drive motor provided in an inner space of a casing; a rotation shaft coupled to the drive motor; a frame provided on a lower side of the drive motor; a first scroll provided on a lower side of the frame, one side of which is formed with a first wrap; a second scroll in which a second wrap engaged with the first wrap is formed, and the rotation shaft is eccentrically coupled to the second wrap to overlap therewith in a radial direction, a compression chamber is formed between the first scroll and the second scroll while being orbitally moved with respect to the first scroll, and the compression chamber is connected to an evaporator outlet side of the cooling cycle; and an injection unit one end of which is branched from a refrigerant pipe between the condenser and the evaporator, and the other end of which is connected to the compression chamber through the first scroll.
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公开(公告)号：US10247189B2
公开(公告)日：2019-04-02
申请号：US15072525
申请日：2016-03-17
Applicant: LG ELECTRONICS INC.
Inventor： Taemin Earmme , Byeongchul Lee , Cheolhwan Kim , Sanghun Seong
Abstract: A scroll compressor is provided. The scroll compressor may include a fixed scroll having a fixed wrap and a plurality of first key recesses, an orbiting scroll engaged with the fixed scroll to define a compression chambers and having an orbiting wrap and a plurality of second key recesses, the orbiting scroll performing an orbiting motion with respect to the fixed scroll, a drive having a rotation shaft coupled to the orbiting scroll such that one end portion thereof overlaps the orbiting wrap in a lateral direction, and an Oldham ring having a plurality of first and second keys coupled to the plurality of first key recesses and the plurality of second key recesses, respectively. The plurality of second keys may at least temporarily protrude from the plurality of second key recesses in a radial direction during the orbiting motion. Further, the plurality of second key recesses and the plurality of second keys may be disposed to obtain maximum contact areas therebetween at a moment of start of discharging.
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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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Patent Agency Ranking
公开(公告)号：US20170306957A1
公开(公告)日：2017-10-26
申请号：US15451803
申请日：2017-03-07
Applicant: LG ELECTRONICS INC.
Inventor： Howon LEE , Jungsun Choi , Cheolhwan Kim
Abstract: A scroll compressor is provided that may include a motor; an orbiting scroll; a fixed scroll coupled to the orbiting scroll, and forming a compression chamber together with the orbiting scroll; a frame coupled to the fixed scroll, and configured to support the orbiting scroll; a sealing member mounting groove having a ring shape, and formed on a first surface of the frame contacting the orbiting scroll, or a second surface of the orbiting scroll contacting the frame; and a sealing member including a first sealing portion formed in a ring shape, inserted into the sealing member mounting groove so as to be moveable in an axial direction, and configured to perform a sealing operation between the frame and the orbiting scroll in the axial direction and including a second sealing portion extending from the first sealing portion in the axial direction, and configured to perform a sealing operation between the frame and the orbiting scroll in a radial direction by contacting an outer side wall surface of the sealing member mounting groove A thickness of the second sealing portion in the radial direction may be smaller than a thickness of the first sealing portion in the axial direction.
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公开(公告)号：US20160053759A1
公开(公告)日：2016-02-25
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.
Abstract translation: 提供压缩机。 压缩机可以包括固定的包裹物和具有与固定包裹物接合以形成压缩室的绕动涡卷的绕动涡旋件。 固定包裹物和绕动包裹物可以具有不规则的包裹曲线。 至少一个干涉避免部分，其间的间隔大于轨道半径，或至少一个间隙补偿部分，在该距离处，在包裹体之间的间距小于绕行半径，固定 滚动体和绕动涡卷的中心彼此对准，可以设置在固定涡卷或绕动涡卷的侧壁表面上，由此由于涡卷之间的干涉而产生的摩擦损失或磨损或由于间隙之间的间隙导致的制冷剂泄漏 可以防止包裹。
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公开(公告)号：US12180965B2
公开(公告)日：2024-12-31
申请号：US17920258
申请日：2021-04-13
Applicant: LG Electronics Inc.
Inventor： Jinho Kim , Kangwook Lee , Cheolhwan Kim
Abstract: The present invention relates to a compressor wherein, when oil is supplied to a single module, the module can mechanically/structurally supply the oil to a plurality of regions in a selective manner according to the pressure of a refrigerant, etc.
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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：US11635077B2
公开(公告)日：2023-04-25
申请号：US16837596
申请日：2020-04-01
Applicant: LG Electronics Inc.
Inventor： Howon Lee , Taekyoung Kim , Cheolhwan Kim
Abstract: A scroll compressor is disclosed, which may provide an oil supply path opened only in case of driving of a low pressure ratio to improve a differential pressure oil supply structure which may have a defect in oil supply in case of driving of the low pressure ratio.
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