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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
Applicant: LG Electronics Inc.
Inventor： Taekyoung Kim , Sungyong Ahn , Junghoon Park , Jaeha Lee
CPC classification number: F04C18/0215 , F04C18/0261 , F04C29/12 , 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：US11248608B2
公开(公告)日：2022-02-15
申请号：US16692112
申请日：2019-11-22
Applicant: LG ELECTRONICS INC.
Inventor： Kangwook Lee , Taekyoung Kim , Cheol Hwan Kim , Byeongchul Lee
Abstract: A scroll compressor is provided capable of supplying oil stored in an oil storage chamber upward through a rotary shaft to supply the oil to a compression device and to lubricate a bearing portion. The scroll compressor may include a casing, a drive motor, a rotary shaft, a main frame, a fixed scroll, and an orbiting scroll. A medium pressure chamber may be formed in or at a middle of the main frame, the fixed scroll, and the orbiting scroll. A pocket groove configured to guide oil discharged through the oil hole to the medium pressure chamber may be formed in an upper surface of the orbiting scroll, and a differential pressure path configured to guide the oil guided to the medium pressure chamber to the compression chamber may be provided in the fixed scroll.
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公开(公告)号：US11209003B2
公开(公告)日：2021-12-28
申请号：US16510464
申请日：2019-07-12
Applicant: LG Electronics Inc.
Inventor： Howon Lee , Taekyoung Kim , Cheolhwan Kim
Abstract: Disclosed herein is a scroll compressor in which the discharge hole is formed to have an axial length less than an axial length of the fixed shaft accommodation portion, thereby increasing efficiency.
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公开(公告)号：US11053938B2
公开(公告)日：2021-07-06
申请号：US15974358
申请日：2018-05-08
Applicant: LG Electronics Inc.
Inventor： Cheolhwan Kim , Taekyoung Kim , Kangwook Lee , Byeongchul Lee
Abstract: Provided a scroll compressor including: a casing, an internal space in which is sealed; a drive motor that is configured with a stator which is located in the internal space, and a rotator which rotates within the stator, and that has an internal flow passage and an external flow passage that passes through the drive motor itself; a rotation shaft that is connected to the rotator of the drive motor; a compression unit that includes a first scroll which is provided below the drive motor, and a second scroll which is engaged with the first scroll; a discharge pipe that communicates with an upper space of the internal space, which is formed above to the drive motor; and an oil separation member that is provided between the drive motor and the discharge pipe, and from whose upper surface a space is formed to a predetermined depth.
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公开(公告)号：US10648471B2
公开(公告)日：2020-05-12
申请号：US15448955
申请日：2017-03-03
Applicant: LG ELECTRONICS INC.
Inventor： Taekyoung Kim , Kangwook Lee , Cheolhwan Kim , Byeongchul Lee
Abstract: A scroll compressor is provided that may include a casing that contains oil in a lower space thereof; a drive motor provided at a position spaced from an upper end of the casing by a predetermined gap, such that an upper space is formed in the casing; a rotational shaft coupled to a rotor of the drive motor, and having an oil supply passage to guide the oil contained in the casing to an upper side of the drive motor; a frame provided below the drive motor; a fixed scroll provided below the frame, and having a fixed wrap; an orbiting scroll provided between the frame and the fixed scroll, having an orbiting wrap so as to form a compression chamber by being engaged with the fixed wrap, and a rotational shaft coupling portion to couple the rotational shaft to the orbiting scroll in a penetrating manner; and an oil collection unit including an oil separator provided at the upper space of the casing, and an oil guide having a first end that communicates with the oil separator and a second end that communicates with a lower space of the fixed scroll.
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Patent Agency Ranking
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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公开(公告)号：USRE49234E1
公开(公告)日：2022-10-04
申请号：US16850400
申请日：2020-04-16
Applicant: LG ELECTRONICS INC.
Inventor： Taekyoung Kim , Cheolhwan Kim , Byeongchul Lee
Abstract: A scroll compressor is provided that may include a casing; an electric motor drive having a stator fixed within the casing, and a rotor rotatably provided within the stator; a rotational shall coupled to the rotor to rotate along with the rotor; a compression device disposed at a lower portion of the electric motor drive to receive a rotational force from the rotational shaft and compress a refrigerant; and an oil storage space located within the casing. A plurality of oil discharge paths to allow oil accumulated at an upper portion thereof to be discharged to the oil storage space may be formed on an outer circumferential surface of the compression device to be separated from each other, and an overall cross-sectional area of the plurality of oil discharge paths may be about 2 to about 12% of an inner diameter cross-sectional area of the casing brought into contact with or separated from an outer circumferential surface of the compression device in the compression device.
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公开(公告)号：US11293440B2
公开(公告)日：2022-04-05
申请号：US16680912
申请日：2019-11-12
Applicant: LG Electronics Inc.
Inventor： Taekyoung Kim , Kangwook Lee , Cheolhwan Kim
Abstract: A compressor includes a case, a driving motor including a stator mounted inside the case and a rotor disposed radially inward of the stator and rotatable, a centrifugation space defined inside the case by one side of the driving motor and the case, a discharge pipe passing through the case and defining a refrigerant inlet hole, a rotation shaft coupled to the rotor to rotate, a compressing portion defined at the other side of the driving motor, where refrigerant is compressed by rotation of the rotation shaft, and a rotating member disposed to spread a rotary power of the rotor to the centrifugation space, thereby providing a centrifugal force to refrigerant and oil. The rotating member is disposed at one side of the rotor to rotate integrally with the rotor.
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公开(公告)号：US10100832B2
公开(公告)日：2018-10-16
申请号：US14731589
申请日：2015-06-05
Applicant: LG ELECTRONICS INC.
Inventor： Taekyoung Kim , Cheolhwan Kim , Byeongchul Lee
Abstract: A scroll compressor is provided that may include a casing; an electric motor drive having a stator fixed within the casing, and a rotor rotatably provided within the stator; a rotational shaft coupled to the rotor to rotate along with the rotor; a compression device disposed at a lower portion of the electric motor drive to receive a rotational force from the rotational shaft and compress a refrigerant; and an oil storage space located within the casing. A plurality of oil discharge paths to allow oil accumulated at an upper portion thereof to be discharged to the oil storage space may be formed on an outer circumferential surface of the compression device to be separated from each other, and an overall cross-sectional area of the plurality of oil discharge paths may be about 2 to about 12% of an inner diameter cross-sectional area of the casing brought into contact with or separated from an outer circumferential surface of the compression device in the compression device.
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公开(公告)号：US20170306954A1
公开(公告)日：2017-10-26
申请号：US15491023
申请日：2017-04-19
Applicant: LG ELECTRONICS INC.
Inventor： Cheolhwan KIM , Yongkyu CHOI , Taekyoung Kim
CPC classification number: F04C18/0269 , F01C21/102 , F04C18/0215 , F04C23/008 , F04C2230/602
Abstract: A scroll compressor is provided that may include an orbiting scroll having an orbiting wrap, and which performs an orbiting motion; and a fixed scroll having a fixed wrap to form a compression chamber including a suction chamber, an intermediate pressure chamber, and a discharge chamber, by being engaged with the orbiting wrap. A wrap thickness of the fixed wrap may be greater than a wrap thickness of the orbiting wrap within a range which forms the suction chamber. With such a configuration, even if the fixed scroll or the orbiting scroll is thermally-expanded, a transformation of the fixed wrap at a suction side may be prevented. This may prevent a gap between the fixed wrap and the orbiting wrap at an opposite side to the suction side, thereby enhancing compression efficiency.
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