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公开(公告)号：US20230204035A1
公开(公告)日：2023-06-29
申请号：US17919934
申请日：2021-03-08
Applicant: LG Electronics Inc.
Inventor： Jaeha LEE , Sungyong AHN , Howon LEE
CPC classification number: F04C29/124 , F04C18/0215 , F04C29/023 , F04C29/065
Abstract: A compressor according to embodiments of the present disclosure 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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公开(公告)号：US20230167820A1
公开(公告)日：2023-06-01
申请号：US17993417
申请日：2022-11-23
Applicant: LG Electronics Inc.
Inventor： Taekyoung KIM , Sungyong AHN , Junghoon PARK , Jaeha LEE
CPC classification number: F04C18/0215 , F04C29/12 , F04C18/0261 , F04C2210/206
Abstract: 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：US20220056908A1
公开(公告)日：2022-02-24
申请号：US17342168
申请日：2021-06-08
Applicant: LG Electronics Inc.
Inventor： Taekyoung KIM , Sungyong AHN , Jaeha LEE
Abstract: 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：US20210156374A1
公开(公告)日：2021-05-27
申请号：US17059411
申请日：2019-05-28
Applicant: LG ELECTRONICS INC.
Inventor： Yoonsung CHOI , Jinho KIM , Sungyong AHN , Seheon CHOI , Mitsuhiro FUKUTA , Masaaki MOTOZAWA , Byeongchul LEE
Abstract: An oil detecting device for a compressor and a compressor including an oil detecting device are provided. A casing in which oil is received has a plurality of capillary tubes in an inner space of the casing, and a condition of oil is detected on the basis of a result of a measured pressure from the plurality of capillary tubes.
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公开(公告)号：US20180195502A1
公开(公告)日：2018-07-12
申请号：US15865966
申请日：2018-01-09
Inventor： Kwangwoon AHN , Sungyong AHN , Yoonchul RHIM
CPC classification number: F04B39/0016 , F04B35/04 , F04B35/045 , F04B39/0005 , F04B39/0011 , F04B39/0061 , F04B39/02 , F04B39/0238 , F04B39/1046
Abstract: 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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Patent Agency Ranking
公开(公告)号：US20220299024A1
公开(公告)日：2022-09-22
申请号：US17696236
申请日：2022-03-16
Applicant: LG Electronics Inc.
Inventor： Junghoon PARK , Sungyong AHN , Taekyoung KIM , Seheon CHOI
IPC: F04C2/02
Abstract: 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：US20200032797A1
公开(公告)日：2020-01-30
申请号：US16526421
申请日：2019-07-30
Applicant: LG Electronics Inc.
Inventor： Jaeha LEE , Jinho KIM , Sungyong AHN , Yoonsung CHOI
Abstract: A fluid compressor is provided. The fluid compressor includes a case including an inlet configured to introduce fluid to be compressed, a compression unit including a compression chamber configured to compress the fluid introduced into the case, and a discharge port configured to discharge the compressed fluid to the outside of the compression chamber, a motor configured to drive the compression unit, and a valve configured to open and close the discharge port. The valve includes a fastening portion coupled to the compression unit to be spaced a first distance from the discharge port.
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公开(公告)号：US20190390675A1
公开(公告)日：2019-12-26
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: The present invention relates to a scroll compressor. A scroll compressor according to the present embodiment comprises a rotational shaft, wherein the rotational shaft comprises: a first frame support part having an inner circumferential surface portion, into which a boss part of a first scroll is inserted, and an outer circumferential surface portion for forming an outer surface thereof; and a guide hole penetrating from the inner circumferential surface portion toward the outer circumferential surface portion.
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公开(公告)号：US20150285302A1
公开(公告)日：2015-10-08
申请号：US14679077
申请日：2015-04-06
Applicant: LG ELECTRONICS INC.
Inventor： Junchul OH , Sungyong AHN , Eunju HWANG , Byeongchul LEE , Secheon CHOI
CPC classification number: 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
Abstract: 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.
Abstract translation: 提供了一种衬套轴承和包括衬套轴承的涡旋压缩机。 绕动涡旋件的凸台可以插入并联接到旋转轴的凸台连接凹槽，因此衬套轴承的外圆周表面可以完全接触凸起联接槽的内圆周表面，从而减小 衬套轴承。 此外，可以减小衬套轴承中的摩擦损失，从而可以提高压缩效率和可靠性，可以降低噪声，并且可以降低材料成本。 此外，尽管衬套轴承形成为环形并且压配合到凸台，但是考虑到热膨胀率，伸长率和延伸率，衬套轴承可以由具有醚酮键合的塑料材料形成 压配合范围，可以有效地防止衬套轴承与凸台分离，从而提高压缩机的可靠性。
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公开(公告)号：US20140356210A1
公开(公告)日：2014-12-04
申请号：US14293028
申请日：2014-06-02
Applicant: LG ELECTRONICS INC.
Inventor： Sungyong AHN , Seheon CHOI , Byeongchul LEE , Byoungchan KIM , Junghoon PARK
IPC: F04C18/02
CPC classification number: F04C18/0215 , F04C23/008 , F04C29/0057 , F04C29/0071 , F04C2230/91 , F04C2240/56 , F05C2225/12 , F05C2251/14
Abstract: 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.
Abstract translation: 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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