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公开(公告)号：US20180334955A1
公开(公告)日：2018-11-22
申请号：US15983712
申请日：2018-05-18
Applicant: LG Electronics Inc.
Inventor： Yunhi LEE , Byeonghun YU , Wheesung OH , Byeongchul LEE
Abstract: The present disclosure relates to a rotary engine having a crankshaft with an improved structure, the rotary engine including a housing, a rotor, housing covers, and a crankshaft installed to penetrate through the rotor so as to receive rotational force from the rotor, wherein the crankshaft includes a first member extending in one direction and having an insertion groove recessed in one side surface thereof, a second member extending to penetrate through a center portion of the housing and provided with a protruding portion on one end thereof to be fixedly inserted into the insertion groove, and a coupling member interposed at a position where the insertion groove and the protruding portion overlap each other such that the first member and the second member are closely coupled to each other.
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公开(公告)号：US20210054872A1
公开(公告)日：2021-02-25
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：US20230383747A1
公开(公告)日：2023-11-30
申请号：US18149973
申请日：2023-01-04
Applicant: LG Electronics Inc.
Inventor： Honghee PARK , Jaesang LEE , Byeonghun YU , Sooho JANG
CPC classification number: F04C2/025 , F04C15/0088 , F04C2240/603
Abstract: A scroll compressor is disclosed. The scroll compressor may include an oil supply hole penetrating from an oil passage to an outer circumferential surface of a rotating shaft, and an oil supply groove communicating with the oil supply hole and formed along the outer circumferential surface of the rotating shaft. The oil supply groove may be provided in plurality axially spaced apart by a preset distance. This can prevent the oil supply groove from invading an oil film section and increase centrifugal force against oil in the oil supply groove, thereby suppressing friction loss and wear between a main frame and the rotating shaft.
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Patent Agency Ranking
公开(公告)号：US20220333598A1
公开(公告)日：2022-10-20
申请号：US17721610
申请日：2022-04-15
Applicant: LG ELECTRONICS INC.
Inventor： Byeonghun YU , Sanghun SEONG , Jinyong JANG , Byeongchul LEE
Abstract: A scroll compressor is disclosed. The scroll compressor may include a suction guide between a refrigerant suction pipe and a high/low pressure separation plate, and the suction guide may be fastened to a non-orbiting scroll or inserted into a suction guide protrusion that extends from the non-orbiting scroll. Accordingly, suction refrigerant may be partially suctioned into a compression chamber by the suction guide in advance before moving to the high/low pressure separation plate, so as to be prevented from coming into contact with the high/low pressure separation plate, while the suction refrigerant may also partially flow toward a drive motor without being suctioned directly into the compression chamber, so as to cool the drive motor, whereby efficiency of the compressor may be improved and an operation range of the compressor may be expanded.
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公开(公告)号：US20170184016A1
公开(公告)日：2017-06-29
申请号：US15382859
申请日：2016-12-19
Applicant: LG ELECTRONICS INC.
Inventor： Byeonghun YU , Yunhi LEE , Changeon LEE , Byeongchul LEE , Kamgyu LEE
CPC classification number: F02B55/08 , F01C1/22 , F01C19/025 , F02B53/04 , F02B2053/005 , F04C2250/00 , Y02T10/17
Abstract: The present invention provides a rotary engine including a housing having therein N rob accommodating portions (N is a natural number equal to or greater than 3), and combustion chambers communicating with the rob accommodating portions, respectively, a rotor having N−1 robs eccentrically rotating centering on a center of the rob accommodating portions, and consecutively accommodated in the respective rob accommodating portions during the eccentric rotation, and combustion controllers provided at both sides of each combustion chamber, and configured to limit a combustion range of mixed gas, whereby an excessive emission of unburned gas caused in an existing rotary engine can be overcome, efficiency of the engine can be improved, and a rotary engine with an optimized design condition can be provided.
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公开(公告)号：US20230167819A1
公开(公告)日：2023-06-01
申请号：US17987446
申请日：2022-11-15
Applicant: LG Electronics Inc.
Inventor： Jinyong JANG , Sanghun SEONG , Honghee PARK , Byeonghun YU
CPC classification number: F04C18/0215 , F04C29/12
Abstract: A scroll compressor includes a discharge guide disposed in a high-pressure part to guide refrigerant discharged from a compression part to a refrigerant discharge pipe, and the discharge guide may extend by a preset height from an inner circumferential surface of a casing constituting the high-pressure part toward one side surface of a high and low pressure separation plate. This can guide discharge refrigerant discharged to the high-pressure part to quickly flow to the refrigerant discharge pipe before being spread in an entire space of the high-pressure part, thereby preventing the high and low pressure separation plate from being overheated by discharge refrigerant of high temperature. This can result in preventing suction refrigerant of a low-pressure part from being heated by heat of discharge refrigerant transferred through the high and low pressure separation plate, thereby reducing a specific volume of the suction refrigerant and improving compressor efficiency.
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公开(公告)号：US20210003011A1
公开(公告)日：2021-01-07
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：US20180283175A1
公开(公告)日：2018-10-04
申请号：US15942832
申请日：2018-04-02
Applicant: LG ELECTRONICS INC.
Inventor： Yunhi LEE , Byeonghun YU , Byeongchul LEE
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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