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公开(公告)号：US10718331B2
公开(公告)日：2020-07-21
申请号：US15506448
申请日：2015-09-02
Applicant: LG ELECTRONICS INC.
Inventor： Seokhwan Moon , Yunhi Lee , Byeongchul Lee
IPC: F04C18/356 , F04C29/02 , F04C23/00
Abstract: Disclosed is a compressor. A lubrication surface, which has the same curvature as an inner circumferential surface curvature of a cylinder and which has a predetermined circumference length, is formed on an outer circumferential surface of a roller contacting an inner circumferential surface of the cylinder. With such a configuration, since the outer circumferential surface of the roller contacting the inner circumferential surface of the cylinder come in surface-contact with each other, an oil film is formed between the roller and the cylinder with a wide area. This can reduce a frictional loss.
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公开(公告)号：US20250129779A1
公开(公告)日：2025-04-24
申请号：US18882955
申请日：2024-09-12
Applicant: LG ELECTRONICS INC.
Inventor： Kiyoul NOH , Yunhi Lee , Seheon Choi
IPC: F04C18/356 , F04C29/12 , F25B31/02
Abstract: Disclosed are a rotary compressor and a refrigeration cycle device having the same. The rotary compressor and the refrigeration cycle device having the same may include a casing, a main bearing, a sub bearing, a cylinder, a roller, a vane, and an injection passage, and the injection passage may be disposed in at least one selected from the main bearing, the sub bearing, and the cylinder to communicate with a corresponding compression chamber after a compression start angle of the corresponding compression chamber. Thus, a maximum injection section may be secured, while a refrigerant being injected may be suppressed from being leaked toward a suction port.
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公开(公告)号：USRE49937E1
公开(公告)日：2024-04-23
申请号：US17000673
申请日：2020-08-24
Applicant: LG ELECTRONICS INC.
Inventor： Gukhyun Cho , Yunhi Lee , Byeongchul Lee
IPC: F01C21/08 , F03C2/00 , F03C4/00 , F04C2/00 , F04C15/00 , F04C18/324 , F04C18/356 , F04C23/00 , F04C29/00
CPC classification number: F01C21/0809 , F04C18/324 , F04C18/356 , F04C23/008 , F04C29/00
Abstract: A compressor including a hinge recess formed at a rolling piston and a hinge protrusion formed at a vane to be inserted into the hinge recess. A diameter of the hinge protrusion is greater than an interval between both ends of an opening of the hinge recess. A bearing surface, which comes in contact with an inner circumferential surface of the hinge recess, of an outer circumferential surface of the hinge protrusion, has a circumferential surface below 90° at both sides, respectively, based on a central line in a lengthwise direction of the vane. This structure may facilitate cutting and grinding of the bearing surface so as to produce machining costs, and also improve a machining degree and thus stabilize behaviors of the rolling piston and the vane so as to enhance compression efficiency.
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公开(公告)号：US20220380967A1
公开(公告)日：2022-12-01
申请号：US17827109
申请日：2022-05-27
Applicant: LG ELECTRONICS INC.
Inventor： Yunhi Lee , Jaehyun Kim , Hyunsun Yoo
Abstract: A laundry treating apparatus includes a dryer disposed in an indoor space; a washing machine vertically disposed with respect to the dryer; a refresher disposed on one side of the dryer and the washing machine; and a heating device heating air supplied to at least one of the dryer, the washing machine, and the refresher. The heating device includes a plurality of compressors, and controls a number of compressors to be operated and an RPM of the operated compressors, according to a cycle status of the dryer, the washing machine, and the refresher.
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公开(公告)号：US20220380965A1
公开(公告)日：2022-12-01
申请号：US17827217
申请日：2022-05-27
Applicant: LG ELECTRONICS INC.
Inventor： Yunhi Lee , Jaehyun Kim , Hyunsun Yoo
Abstract: A laundry treating apparatus including an outer case; an inner case disposed in the outer case and providing a laundry receiving space; a supply air hole communicating with the laundry receiving space; a heat exchange channel having an inlet end where air is introduced and a discharge end where the air is discharged; a heating device for heating air passing through the heat exchange channel; and a supply air duct connecting the discharge end of the heat exchange channel and the supply air hole, the supply air duct is disposed in a rear of the inner case.
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Patent Agency Ranking
公开(公告)号：US11459891B2
公开(公告)日：2022-10-04
申请号：US16921120
申请日：2020-07-06
Applicant: LG ELECTRONICS INC.
Inventor： Byeonghun Yu , Gunyoung Park , Sooho Jang , Yunhi Lee
Abstract: Disclosed herein is a rotary engine a supply flow passage provided in the housing to allow the lubricating oil to move therethrough, a sealing part arranged to contact the rotor to selectively close the supply flow passage, and an elastic part configured to press the sealing part toward the combustion chamber.
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公开(公告)号：US11371550B2
公开(公告)日：2022-06-28
申请号：US16764163
申请日：2018-11-13
Applicant: LG Electronics Inc.
Inventor： Byeonghun Yu , Wheesung Oh , Yunhi Lee , Gun Young Park
Abstract: The present invention provides a rotary engine comprising: a housing provided with three lobe accommodation parts; a rotor which is provided with two lobes continuously accommodated in the lobe accommodation parts, has an intake storage part communicating with an intake port provided on the front surface-side, and has an exhaust storage part communicating with an exhaust port provided on the rear surface-side; an intake-side housing cover provided with an intake hole communicating with the intake storage part; an exhaust-side housing cover provided with an exhaust hole communicating with the exhaust storage part; and a crankshaft, wherein the flow of an exhaust gas into a stroke chamber during an intake stroke is reduced by preventing the exhaust storage part, at a portion of a section in which the exhaust port is open, from communicating with the exhaust hole during the intake stroke.
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公开(公告)号：US10774646B2
公开(公告)日：2020-09-15
申请号：US15942832
申请日：2018-04-02
Applicant: LG ELECTRONICS INC.
Inventor： Yunhi Lee , Byeonghun Yu , Byeongchul Lee
IPC: F01C21/04 , F02B53/00 , F01M1/02 , F01C17/02 , F01M1/06 , F02B55/14 , F01C1/22 , F01C13/04 , F02B55/02 , F04C2/10
Abstract: A rotary engine having a crankshaft, a housing provided with lobe accommodating portions arranged to surround the crankshaft, and combustion chambers communicating with the lobe accommodating portions, a rotor rotatable eccentrically with respect to the crankshaft and provided with lobes continuously accommodated in the lobe accommodating portions, a housing cover provided with a bearing portion through which the crankshaft is inserted so as to be rotatably supported, and a lubricating unit to supply oil to the bearing portion, wherein the lubricating unit includes an oil pan to accommodate oil therein, an oil pump to pump up oil filled in the oil pan, and an oil supply passage having both ends located in the oil pump and the bearing portion, respectively, is provided. This structure may allow direct and effective lubrication of the bearing portion, and can employ a journal bearing.
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公开(公告)号：US10550696B2
公开(公告)日：2020-02-04
申请号：US15506300
申请日：2015-08-19
Applicant: LG ELECTRONICS INC.
Inventor： Gukhyun Cho , Yunhi Lee , Byeongchul Lee
IPC: F03C2/00 , F03C4/00 , F04C2/00 , F04C15/00 , F01C21/08 , F04C18/324 , F04C18/356 , F04C23/00 , F04C29/00
Abstract: A compressor including a hinge recess formed at a rolling piston and a hinge protrusion formed at a vane to be inserted into the hinge recess. A diameter of the hinge protrusion is greater than an interval between both ends of an opening of the hinge recess. A bearing surface, which comes in contact with an inner circumferential surface of the hinge recess, of an outer circumferential surface of the hinge protrusion, has a circumferential surface below 90° at both sides, respectively, based on a central line in a lengthwise direction of the vane. This structure may facilitate cutting and grinding of the bearing surface so as to reduce machining costs, and also improve a machining degree and thus stabilize behaviors of the rolling piston and the vane so as to enhance compression efficiency.
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10.发明授权公开(公告)号：US09188126B2
公开(公告)日：2015-11-17
申请号：US14051879
申请日：2013-10-11
Applicant: LG ELECTRONICS INC.
Inventor： Jinung Shin , Bumdong Sa , Yunhi Lee
CPC classification number: F04C23/008 , F04C18/356 , F04C23/001 , F04C29/028 , F04C2240/806
Abstract: A hermetic compressor is provided that may include a fluid guide disposed in an inner space of an intermediate chamber, so as to guide oil, discharged from a first compression chamber of a first compression device into the inner space of the intermediate chamber, to a second compression chamber of a second compression device without remaining in the inner space of the intermediate chamber, whereby noise generated due to an excessive amount of oil remaining in the inner space of the intermediate chamber may be reduced, and simultaneously a shortage of oil in the second compression device may be prevented.
Abstract translation: 提供一种封闭式压缩机，其可以包括设置在中间室的内部空间中的流体引导件，以将从第一压缩装置的第一压缩室排出的油引导到中间室的内部空间中， 第二压缩装置的压缩室不残留在中间室的内部空间中，由此可能减少由于残留在中间室的内部空间中的过量的油而产生的噪声，同时第二压缩室中的油的缺乏 可以防止压缩装置。
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