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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
申请人： LG ELECTRONICS INC.
发明人： Sungyong Ahn , Jinho Kim , Junghoon Park , Junchul Oh , Byeongchul Lee , Jaeha Lee , Seheon Choi
摘要： 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：US09897143B2
公开(公告)日：2018-02-20
申请号：US14679077
申请日：2015-04-06
申请人： LG ELECTRONICS INC.
发明人： Junchul Oh , Sungyong Ahn , Eunji Hwang , Byeongchul Lee , Seheon Choi
IPC分类号： F03C2/00 , F03C4/00 , F04C18/02 , F04C23/00 , F04C29/00 , F16C33/20 , F04C29/02 , F01C21/02 , F04C29/06
CPC分类号： F16C33/201 , F01C21/02 , F04C18/0215 , F04C29/0057 , F04C29/0071 , F04C29/02 , F04C29/06 , F04C2230/60 , F04C2240/56 , F05C2225/12 , F05C2251/00 , F05C2251/14 , F16C2360/42
摘要： A bush bearing and a scroll compressor including a bush bearing are provided. A boss of an orbiting scroll may be inserted into and coupled to a boss coupling groove of a rotational shaft, and thus, an outer circumferential surface of a bush bearing may wholly contact an inner circumferential surface of the boss coupling groove, thereby decreasing wear of the bush bearing. Further, friction loss in the bush bearing may be reduced, and thus, compression efficiency and reliability may be enhanced, noise may be reduced, and material costs may be reduced. Furthermore, despite that the bush bearing is formed in a ring shape and press-fitted to the boss, as the bush bearing may be formed of a plastic material having an ether ketone bonding in consideration of a thermal expansion rate, an elongation, and a press-fit range, the bush bearing may be effectively prevented from being detached from the boss, thereby enhancing a reliability of a compressor.
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公开(公告)号：US11867175B2
公开(公告)日：2024-01-09
申请号：US17993417
申请日：2022-11-23
申请人： LG Electronics Inc.
发明人： Taekyoung Kim , Sungyong Ahn , Junghoon Park , Jaeha Lee
CPC分类号： F04C18/0215 , F04C18/0261 , F04C29/12 , F04C2210/206
摘要： A scroll compressor includes a casing having an oil storage space, a fixed scroll disposed inside the casing, an orbiting scroll disposed on one side of the fixed scroll and performing an orbiting motion relative to the fixed scroll so as to form a compression chamber, a discharge cover coupled to another side opposite to the one side of the fixed scroll and having a cover bottom surface, and an oil feeder coupled to the cover bottom surface to face a direction opposite to the fixed scroll, to communicate with the oil storage space. The cover bottom surface is disposed at an inner side of an inner circumference of the oil feeder and defines a discharge hole to communicate with the inner side of the oil feeder.
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公开(公告)号：US11713756B2
公开(公告)日：2023-08-01
申请号：US17342168
申请日：2021-06-08
申请人： LG Electronics Inc.
发明人： Taekyoung Kim , Sungyong Ahn , Jaeha Lee
CPC分类号： F04C2/025 , F04C15/0088 , F04C18/0215 , F04C23/008 , F04C29/02 , F04C29/12 , F04C2240/30
摘要： A scroll compressor includes oil in an oil storage space that is brought into direct contact with and stirred with a discharge refrigerant. The scroll compressor includes a fixed scroll, an orbiting scroll coupled to one side of the fixed scroll, and a discharge cover coupled to another side of the fixed scroll and provided with a muffler hole communicating with a refrigerant discharge space and the oil storage space.
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公开(公告)号：US11692547B2
公开(公告)日：2023-07-04
申请号：US17696236
申请日：2022-03-16
申请人： LG Electronics Inc.
发明人： Junghoon Park , Sungyong Ahn , Taekyoung Kim , Seheon Choi
CPC分类号： F04C18/0215 , F04C23/008 , F04C29/02 , F04C29/12 , F04C2240/30 , F04C2240/40 , F04C2240/50 , F04C2240/60
摘要： A hermetic compressor according to the present disclosure may include an oil guide disposed on a rotating shaft between a driving motor and a main frame, the oil guide may include an oil block surrounding a main bearing surface between the main frame and the rotating shaft, and one end of the oil block may radially overlap a shaft support protrusion of the main frame. This can suppress oil returned after lubricating a compression unit from being scattered, thereby reducing a leakage of the oil to outside of a casing through a refrigerant discharge pipe.
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公开(公告)号：US10968907B2
公开(公告)日：2021-04-06
申请号：US15865966
申请日：2018-01-09
发明人： Kwangwoon Ahn , Sungyong Ahn , Yoonchul Rhim
摘要： A linear compressor includes a cylinder that defines a compression chamber configured to accommodate refrigerant and that includes a cylinder nozzle configured to receive refrigerant, and a piston provided in the cylinder and configured to be pressed by refrigerant in the cylinder. The piston includes a piston body configured to move forward and backward within the cylinder, a piston front part located on a front surface of the piston body, the piston front part comprising a suction port through which refrigerant is supplied into the compression chamber, and a refrigerant collection part that is recessed from an outer circumferential surface of the piston front part, that extends to a front surface of the piston front part, and that is configured to receive at least a portion of refrigerant compressed in the compression chamber.
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7.发明授权Scroll compressor having a bush bearing provided on a boss of orbiting scroll 有权具有设置在绕动涡旋盘的凸台上的衬套轴承的涡旋式压缩机公开(公告)号：US09291164B2
公开(公告)日：2016-03-22
申请号：US14293028
申请日：2014-06-02
申请人： LG ELECTRONICS INC.
发明人： Sungyong Ahn , Seheon Choi , Byeongchul Lee , Byoungchan Kim , Junghoon Park
CPC分类号： F04C18/0215 , F04C23/008 , F04C29/0057 , F04C29/0071 , F04C2230/91 , F04C2240/56 , F05C2225/12 , F05C2251/14
摘要： A scroll compressor is provided in which a boss of an orbiting scroll is inserted into and coupled to a boss coupling recess of a crank shaft, so that friction loss of a bearing portion of the crank shaft may be reduced, compression efficiency and reliability of the compressor may be enhanced, and noise and material costs may be reduced. A bush bearing may be formed as a coating on the boss of the orbiting scroll, so that a thickness of the bearing portion of the crank shaft may be reduced. Since an outer circumferential surface of the bearing portion is in contact with an inner circumferential surface of the boss coupling recess, damage to the bearing portion may be prevented.
摘要翻译： 提供一种涡旋压缩机，其中绕动涡旋盘的凸台插入并联接到曲轴的凸台联接凹槽，使得曲轴的轴承部分的摩擦损失可能降低，压缩效率和可靠性 可以增强压缩机，并且可以降低噪声和材料成本。 衬套轴承可以形成为绕动涡旋盘的凸台上的涂层，使得可以减小曲柄轴承部分的厚度。 由于轴承部的外周面与凸台接合凹部的内周面接触，所以可以防止对轴承部的损伤。
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公开(公告)号：US11480179B2
公开(公告)日：2022-10-25
申请号：US16591120
申请日：2019-10-02
申请人： LG Electronics Inc.
发明人： Jinho Kim , Sungyong Ahn , Jaeha Lee , Seheon Choi , Yoonsung Choi
摘要： A fluid compressor includes a case, a fixed scroll, an orbiting scroll, a motor, and at least one anti-rotation unit. The case is configured to form an external appearance thereof. The fixed scroll is fixed in the case. The orbiting scroll is engaged with the fixed scroll at one side of the fixed scroll, and performs partitioning of a compression chamber. The motor provides the orbiting scroll with drive power. The anti-rotation unit is coupled to a side surface of the orbiting scroll so as to prevent rotation of the orbiting scroll.
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公开(公告)号：US11293434B2
公开(公告)日：2022-04-05
申请号：US16635956
申请日：2018-07-30
申请人： LG Electronics Inc.
发明人： Jaeha Lee , Jinho Kim , Sungyong Ahn , Byeongchul Lee , Seheon Choi
摘要： A bush bearing having an outer lubricating layer, a manufacturing method therefor and a scroll compressor having same applied thereto, according to the present disclosure, includes a bush bearing comprising: a base member which has a cylindrical shape having no separated surfaces along the circumferential direction; and a lubricating member which is formed from a material having a lower rigidity and more excellent lubricity than the base member, and has a cylindrical shape having no separated surfaces along the circumferential direction by being integrally provided to the outer circumferential surface of the base member, wherein the cylindricity of the outer circumferential surface of the lubricating member satisfies a value that is within 0.6% of the average thickness of the lubricating member, and the lubricating member has carbon fiber contained in a resin base, wherein the carbon fiber has cut surfaces exposed on both ends of the lubricating member.
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公开(公告)号：US12078175B2
公开(公告)日：2024-09-03
申请号：US17919934
申请日：2021-03-08
申请人： LG Electronics Inc.
发明人： Jaeha Lee , Sungyong Ahn , Howon Lee
CPC分类号： F04C29/124 , F04C18/0215 , F04C29/023 , F04C29/065
摘要： A compressor comprises a discharge valve which is provided so as to be coupled to a fixed scroll and open/close a discharge hole. The discharge valve includes a coupling portion which is coupled to one surface of the fixed scroll, the surface facing a muffler, and a head portion extending from the coupling portion and opening/closing the discharge hole. The head portion may be provided with a communicating hole for allowing the discharge hole and the muffler to be in communication with each other. Accordingly, a backflow of a compressed refrigerant is prevented during the operation of the compressor, and thus over-compression of the refrigerant can be prevented. Also, when the compressor stops operating, only a certain amount of the discharged refrigerant is allowed to flow backward to prevent a reverse rotation of an orbiting scroll and a decrease in the oil level of the oil stored in a case.
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