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公开(公告)号：US20180372099A1
公开(公告)日：2018-12-27
申请号：US15830222
申请日：2017-12-04
Applicant: LG ELECTRONICS INC.
Inventor： Yong Kyu CHOI , Cheol Hwan Kim , Kangwook Lee , Jungsun Choi
Abstract: A scroll compressor, and more particularly, to a scroll compressor including a communication groove which may decrease discharge resistance is provided. The scroll compressor may include a fixed scroll having a fixed end plate and a fixed wrap, and an orbiting scroll configured to perform an orbiting movement about the fixed scroll and having an orbiting end plate and an orbiting wrap. A communication groove in the form of a recessed groove may be formed in an inner surface of the orbiting end plate, and a refrigerant may flow through the communication groove according to a state in which the fixed wrap overlaps the communication groove such that there is an effect in that an opening efficiency of a discharge hole is improved at an initial stage of discharge.
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公开(公告)号：US20180120004A1
公开(公告)日：2018-05-03
申请号：US15447585
申请日：2017-03-02
Applicant: LG ELECTRONICS INC.
Inventor： Kangwook Lee , Dongkeun Yang , Choonjae Ryu
IPC: F25B41/00
CPC classification number: F25B41/00 , B60H2001/3298 , F04F5/00 , F04F5/44 , F04F5/46 , F04F5/461 , F04F5/463 , F05D2260/601 , F25B9/08 , F25B2341/00 , F25B2341/001 , F25B2341/0012 , F25B2341/0013 , F25B2400/23 , F25B2600/02
Abstract: An ejector and a refrigeration cycle apparatus having an ejector are provided. The ejector may include an ejector body having an accommodation space therein, a suction portion through which a high pressure refrigerant and a low pressure refrigerant may be suctioned into the accommodation space, and a mixing portion configured to mix the high pressure refrigerant with the low pressure refrigerant; a nozzle provided in the ejector body, having a nozzle neck and an expansion portion, and configured to inject the high pressure refrigerant into the mixing portion; a first needle moveably provided at the expansion portion, and configured to control a flow sectional area of the expansion portion; a second needle moveably provided at the nozzle neck, and configured to control a flow sectional area of the nozzle neck; a first needle drive configured to drive the first needle; and a second needle drive configured to drive the second needle. With such a configuration, the flow sectional area of the nozzle neck and the flow sectional area of the expansion portion may be independently controlled in correspondence to a drive condition.
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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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公开(公告)号：US09920760B2
公开(公告)日：2018-03-20
申请号：US14286903
申请日：2014-05-23
Applicant: LG ELECTRONICS INC.
Inventor： Sanghun Sung , Kangwook Lee , Yongkyu Choi
CPC classification number: F04C18/0269 , F01C17/066 , F04C18/0215 , F04C23/008
Abstract: A scroll compressor is provided. An interference prevention portion may be formed on a side wall surface of at least one of a fixed wrap or an orbiting wrap. With such a configuration, an end of the fixed wrap may not interfere with the orbiting wrap at an arc compression surface of the orbiting wrap, but rather, be inserted into the interference prevention portion. Accordingly, occurrence of a gap between the fixed wrap and the orbiting wrap may be prevented, and thus, compression efficiency enhanced.
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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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Patent Agency Ranking
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：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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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：US12000397B2
公开(公告)日：2024-06-04
申请号：US17876038
申请日：2022-07-28
Applicant: LG Electronics Inc.
Inventor： Howon Lee , Kangwook Lee , Cheolhwan Kim
CPC classification number: F04C18/0292 , F04C18/0215 , F04C18/0261 , F04C18/0269 , F04C23/02 , F04C29/128 , F04C29/02 , F04C2210/26 , F04C2240/10 , F04C2240/20 , F04C2240/40
Abstract: A scroll compressor is disclosed, which comprises an auxiliary discharge path capable of sufficiently making sure of a discharge area at an initial discharge stage. The compressor comprises a fixed scroll including a fixed end plate portion and a fixed wrap, and an orbiting scroll including an orbiting end plate portion and an orbiting wrap, wherein a discharge hole is formed in the fixed end plate portion, and an auxiliary discharge path for connecting a side of the orbiting wrap with a bottom surface of the orbiting wrap is provided to be communicated with the discharge hole, whereby a compressed refrigerant may be discharged through the auxiliary discharge path.
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公开(公告)号：US11674510B2
公开(公告)日：2023-06-13
申请号：US17344469
申请日：2021-06-10
Applicant: LG Electronics Inc.
Inventor： Jungsun Choi , Kangwook Lee , Kyungho Lee
CPC classification number: F04C18/0215 , F04C23/008 , F04C29/12 , F04C29/126 , F04C2240/30
Abstract: A scroll compressor includes a refrigerant suction pipe coupled to a discharge cover or a fixed scroll through a casing in a radial direction, a suction passage communicating the refrigerant suction pipe with a compression chamber, and a suction passage opening and closing valve disposed inside the suction passage to be slidable in an axial direction so as to selectively open or close the suction passage. Accordingly, when the compressor is stopped, oil or refrigerant in the casing can be restricted quickly so as not to flow back to the refrigerant suction pipe through a compression unit.
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