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公开(公告)号：US10570899B2
公开(公告)日：2020-02-25
申请号：US15491059
申请日：2017-04-19
Applicant: LG ELECTRONICS INC.
Inventor： Kangwook Lee , Yongkyu Choi , Cheolhwan Kim
Abstract: A scroll compressor may include a casing configured to contain oil at a lower portion; a drive motor provided in the casing; a rotational shaft coupled to the drive motor, and having an oil supply passage in order to guide oil contained in the casing to an upper side; a frame provided below the drive motor; a fixed scroll provided below the frame, and having a fixed wrap; and an orbiting scroll provided between the frame and the fixed scroll, having an orbiting wrap to form a compression chamber with the fixed wrap, and having rotational shaft coupling portion. One or more oil dimples may be formed at a peripheral end surface of the rotational shaft coupling portion. With such a configuration, as oil may be smoothly supplied to an end surface of the orbiting wrap near the rotational shaft coupling portion, abrasion may be prevented.
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公开(公告)号：US10208752B2
公开(公告)日：2019-02-19
申请号：US15817657
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 discharge outlet of at least one of the first discharge port or the second discharge port may have a larger sectional area than the discharge inlet. Accordingly, a discharge delay in each compression chamber may be prevented in advance, thereby suppressing compression loss.
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公开(公告)号：US10125767B2
公开(公告)日：2018-11-13
申请号：US15624841
申请日：2017-06-16
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
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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公开(公告)号：US20180238327A1
公开(公告)日：2018-08-23
申请号：US15956970
申请日：2018-04-19
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：US09945381B2
公开(公告)日：2018-04-17
申请号：US14587901
申请日：2014-12-31
Applicant: LG ELECTRONICS INC.
Inventor： Kangwook Lee , Cheolhwan Kim , Byeongchul Lee
CPC classification number: F04C29/026 , F04C18/0215 , F04C23/008 , F04C29/0085 , F04C29/025 , F04C29/028 , F04C2240/807
Abstract: A compressor is provided that may include a passage separator provided between an electric motor drive and a compression device to separate a refrigerant passage from an oil passage. The passage separator may include a first partition wall and a second partition wall. The first partition wall may be disposed between an inner circumferential surface of a casing and a discharge hole of the compression device, and the second partition wall may be disposed between the discharge hole and a balance weight. Accordingly, the refrigerant passage may be separated from the oil passage between the compression device and electric motor drive, thereby efficiently recovering oil to an oil storage space.
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Patent Agency Ranking
公开(公告)号：US09816505B2
公开(公告)日：2017-11-14
申请号：US14591735
申请日：2015-01-07
Applicant: LG ELECTRONICS INC.
Inventor： Kangwook Lee , Taekyoung Kim , Cheolhwan Kim
CPC classification number: F04C23/008 , F04C18/0215 , F04C29/023 , F04C29/028 , F04C2240/603
Abstract: A scroll compressor is provided that may prevent an oil-feeding hole from being blocked due to a high pressure refrigerant, which is compressed in compression chambers and introduced into the oil-feeding hole through an oil-feeding slit, by blocking one of both end portions of the oil-feeding slit, adjacent to the compression chambers, when the oil-feeding hole is formed through an outer circumferential surface of a bearing and the oil-feeding slit, which communicates with the oil-feeding hole, is formed on the outer circumferential surface. This may allow for smooth oil supply onto the outer circumferential surface of the bearing through the oil-feeding hole, thereby enhancing a bearing performance. Also, the oil-feeding hole or slit may be formed at a closest position to an oil feeding-required section, not within the section. This may allow for quick oil supply into the oil feeding-required section, resulting in further enhanced bearing performance.
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公开(公告)号：US09726177B2
公开(公告)日：2017-08-08
申请号：US14796313
申请日：2015-07-10
Applicant: LG ELECTRONICS INC.
Inventor： Yongkyu Choi , Kangwook Lee , Cheolhwan Kim
CPC classification number: F04C29/0057 , F04C18/0215 , F04C23/008 , F04C29/025 , F04C2240/50
Abstract: A scroll compressor is disclosed which prevents leakage of refrigerant from a compression chamber and abrasion of bearings between a rotating shaft and an orbiting scroll by reducing the tilting angle of the orbiting scroll, because the allowable bearing angle is equal to or larger than the tilting angle, where the allowable bearing angle θ refers to the maximum angle at which the orbiting scroll is tilted with respect to the rotating shaft, and the tilting angle β refers to the angle at which the orbiting scroll is tilted with respect to the plate.
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公开(公告)号：US09683568B2
公开(公告)日：2017-06-20
申请号：US14782080
申请日：2014-05-19
Applicant: LG ELECTRONICS INC.
Inventor： Yongkyu Choi , Inho Won , Cheolhwan Kim
IPC: F03C2/00 , F03C4/00 , F04C2/00 , F04C18/00 , F04C18/02 , F04C29/12 , F01C1/02 , F04C15/06 , F04C28/26 , F04C23/00
CPC classification number: F04C18/0261 , F01C1/0215 , F01C1/0261 , F04C15/06 , F04C18/0215 , F04C18/0246 , F04C23/008 , F04C28/26 , F04C29/12 , F04C2240/808 , F04C2270/195 , F04C2270/80 , F04C2270/86
Abstract: A scroll compressor is provided. The scroll compressor may include a fixed scroll including a fixed wrap, and an orbiting scroll including an orbiting wrap coupled to the fixed wrap to form a pair of compression chambers. An entire cross-sectional area of bypass holes formed at a compression chamber with a larger volume reduction gradient between the compression chambers may be formed to be larger than an entire cross-sectional area of bypass holes formed at the other compression chamber to prevent over-compression at the compression chamber with the larger volume reduction gradient, thereby enhancing an entire efficiency of the compressor.
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公开(公告)号：US20160195089A1
公开(公告)日：2016-07-07
申请号：US15072525
申请日：2016-03-17
Applicant: LG ELECTRONICS INC.
Inventor： Taemin EARMME , Byeongchul Lee , Cheolhwan Kim , Sanghun Seong , Kwang Ki Choi
CPC classification number: F04C29/0057 , F01C17/066 , F01C21/007 , F04C18/0215 , F04C18/0253
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.
Abstract translation: 提供涡旋压缩机。 涡旋式压缩机可以包括具有固定涡卷和多个第一键凹槽的固定涡旋盘，与固定涡旋件接合以限定压缩室并具有绕动涡卷和多个第二键凹槽的绕动涡旋盘， 相对于固定涡旋件的轨道运动，具有联接到绕动涡旋件的旋转轴的驱动器，使得其一个端部在横向方向上与绕动涡卷重叠，并且具有多个第一和第二键的十字形环耦合到 多个第一键槽和多个第二键槽。 在轨道运动期间，多个第二键可以至少在径向上从多个第二键凹槽突出。 此外，可以设置多个第二键凹槽和多个第二键，以在放电开始时获得其间的最大接触面积。
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公开(公告)号：US20160040671A1
公开(公告)日：2016-02-11
申请号：US14796313
申请日：2015-07-10
Applicant: LG ELECTRONICS INC.
Inventor： Yongkyu CHOI , Kangwook Lee , Cheolhwan Kim
CPC classification number: F04C29/0057 , F04C18/0215 , F04C23/008 , F04C29/025 , F04C2240/50
Abstract: A scroll compressor is disclosed which prevents leakage of refrigerant from a compression chamber and abrasion of bearings between a rotating shaft and an orbiting scroll by reducing the tilting angle of the orbiting scroll, because the allowable bearing angle is equal to or larger than the tilting angle, where the allowable bearing angle θ refers to the maximum angle at which the orbiting scroll is tilted with respect to the rotating shaft, and the tilting angle β refers to the angle at which the orbiting scroll is tilted with respect to the plate.
Abstract translation: 公开了一种涡旋压缩机，其通过减小绕动涡旋盘的倾斜角度，防止制冷剂从压缩室泄漏，并且在旋转轴与绕动涡旋件之间磨损，因为允许的轴承角度等于或大于倾斜角度 ，其中允许的轴承角度和角度; 是指绕动涡卷相对于旋转轴倾斜的最大角度，倾斜角度＆bgr; 是指绕涡旋盘相对于板倾斜的角度。
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