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公开(公告)号：US10907634B2
公开(公告)日：2021-02-02
申请号：US16239620
申请日：2019-01-04
Applicant: LG ELECTRONICS INC.
Inventor： Yongkyu Choi , Kangwook Lee , Cheolhwan Kim
Abstract: A scroll compressor is provided that may include a first compression chamber, a second compression chamber separated from the first compression chamber, and having a greater compression ratio than the first compression chamber, a first discharge port that communicates with the first compression chamber and provided with a first discharge inlet and a first discharge outlet, and a second discharge port separated from the first discharge port, that communicates with the second compression chamber, and provided with a second discharge inlet and a second discharge outlet, the discharge outlet of at least one of the first discharge port or the second discharge port may have a larger sectional area than the discharge inlet. Accordingly, a discharge delay in each compression chamber may be prevented in advance, thereby suppressing compression loss.
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公开(公告)号：US10648470B2
公开(公告)日：2020-05-12
申请号：US15491051
申请日：2017-04-19
Applicant: LG ELECTRONICS INC.
Inventor： Yongkyu Choi , Kangwook Lee , Cheolhwan Kim , Byeongchul Lee
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. In a state in which the orbiting scroll and the fixed scroll are concentric with each other, when a distance between the orbiting wrap and the fixed wrap is defined as an orbiting radius, there exists an offset section having an interval larger than the orbiting radius, between a side surface of the orbiting wrap and a side surface of the fixed wrap which faces the orbiting wrap. With such a configuration, even if the fixed scroll or the orbiting scroll is transformed due to thermal expansion, interference between the fixed wrap and the orbiting wrap at a portion having a large transformation amount may be prevented. This may prevent a frictional loss or abrasion between the fixed wrap and the orbiting wrap. Further, this may restrict or minimize a gap between the fixed wrap and the orbiting wrap at an opposite side to the suction chamber, resulting in enhanced compression efficiency.
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公开(公告)号：US10041493B2
公开(公告)日：2018-08-07
申请号：US14710704
申请日：2015-05-13
Applicant: LG ELECTRONICS INC.
Inventor： Yongkyu Choi , Kangwook Lee , Cheolhwan Kim
Abstract: A scroll compressor is provided that may include a first scroll provided with a discharge port, a second scroll engaged with the first scroll to form a first compression chamber and a second compression chamber, and a rotational shaft provided with an eccentric portion eccentrically coupled to the first scroll or the second scroll The eccentric portion may overlap the first and second compression chambers in a radial direction. The discharge port may be provided with at least one discharge inlet and a discharge outlet The at least one discharge inlet may include a plurality of discharge inlets, which have different areas from each other, whereby a refrigerant of each compression chamber may be smoothly discharged, thereby preventing an over-compression loss due to a delay of discharge.
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公开(公告)号：US12038002B2
公开(公告)日：2024-07-16
申请号：US18196028
申请日：2023-05-11
Applicant: LG ELECTRONICS INC.
Inventor： Kiyoul Noh , Yongkyu Choi , Minho Lee
CPC classification number: F04C15/0057 , F04C15/0088 , F04C18/3441 , F04C27/001 , F04C29/12 , F04C2240/30
Abstract: A rotary compressor is provided that may include a casing, a cylinder having an inner circumferential surface in an annular shape, a roller rotatably disposed in a compression space of the cylinder, a rotational shaft coupled to an inner circumference of the roller, main and sub bearings defining surfaces of the compression space, and a sub bearing cover coupled to the sub bearing to cover one end of the sub bearing and defining a discharge chamber with the sub bearing to communicate with the compression space so as to accommodate compressed refrigerant to be discharged. The sub bearing or the sub bearing cover may include a first barrier rib that protrudes from a surface thereof located inside of the discharge chamber. The first barrier rib may be spaced apart from a surface opposite to the surface within the discharge chamber by a predetermined distance.
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公开(公告)号：US11920590B2
公开(公告)日：2024-03-05
申请号：US17874485
申请日：2022-07-27
Applicant: LG ELECTRONICS INC.
Inventor： Yongkyu Choi , Kangwook Lee , Cheolhwan Kim , Byeongchul Lee
CPC classification number: F04C18/0269 , F04C18/0215 , F04C28/28 , F04C29/0085 , F04C29/12 , F04C2240/30 , F04C2240/60
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. In a state in which the orbiting scroll and the fixed scroll are concentric with each other, when a distance between the orbiting wrap and the fixed wrap is defined as an orbiting radius, there exists an offset section having an interval larger than the orbiting radius, between a side surface of the orbiting wrap and a side surface of the fixed wrap which faces the orbiting wrap. With such a configuration, even if the fixed scroll or the orbiting scroll is transformed due to thermal expansion, interference between the fixed wrap and the orbiting wrap at a portion having a large transformation amount may be prevented. This may prevent a frictional loss or abrasion between the fixed wrap and the orbiting wrap. Further, this may restrict or minimize a gap between the fixed wrap and the orbiting wrap at an opposite side to the suction chamber, resulting in enhanced compression efficiency.
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Patent Agency Ranking
公开(公告)号：US20230366398A1
公开(公告)日：2023-11-16
申请号：US18196028
申请日：2023-05-11
Applicant: LG ELECTRONICS INC.
Inventor： Kiyoul NOH , Yongkyu Choi , Minho Lee
IPC: F04C15/00
CPC classification number: F04C15/0057 , F04C15/0088 , F04C2240/30
Abstract: A rotary compressor is provided that may include a casing, a cylinder having an inner circumferential surface in an annular shape, a roller rotatably disposed in a compression space of the cylinder, a rotational shaft coupled to an inner circumference of the roller, main and sub bearings defining surfaces of the compression space, and a sub bearing cover coupled to the sub bearing to cover one end of the sub bearing and defining a discharge chamber with the sub bearing to communicate with the compression space so as to accommodate compressed refrigerant to be discharged. The sub bearing or the sub bearing cover may include a first barrier rib that protrudes from a surface thereof located inside of the discharge chamber. The first barrier rib may be spaced apart from a surface opposite to the surface within the discharge chamber by a predetermined distance.
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公开(公告)号：US11815093B2
公开(公告)日：2023-11-14
申请号：US17506348
申请日：2021-10-20
Applicant: LG Electronics Inc.
Inventor： Jaeha Lee , Yongkyu Choi , Minho Lee
CPC classification number: F04C18/0215 , F04C23/008 , F04C29/026 , F04C29/028 , F04C29/065 , F04C2240/30 , F04C2240/60 , F04C2250/20 , F04C2250/30
Abstract: A scroll compressor includes a motor portion fixed in an inner space of a casing, a compression portion fixed to the inner space of the casing at one side of the motor portion in an axial direction, a rotation shaft to transmit a driving force from the motor portion to the compression portion, and a flow path guide provided in a discharge space between the motor portion and the compression portion and provided with a guide outlet communicating with the discharge space and opened in a direction toward the rotation shaft. Therefore, most of refrigerant discharged to the discharge space through the flow path guide is moved toward an air gap to enhance an oil separation effect, and thus a normal operation point of the air conditioner can be accelerated.
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公开(公告)号：US20220316474A1
公开(公告)日：2022-10-06
申请号：US17707382
申请日：2022-03-29
Applicant: LG Electronics Inc.
Inventor： Yongkyu Choi , Kangwook Lee , Jaeha Lee
IPC: F04C18/02
Abstract: A scroll compressor of an air conditioner includes a refrigerant discharge tube through which refrigerant discharged to an inner space of a casing is discharged into a refrigeration cycle, a venturi tube disposed adjacent to the refrigerant discharge tube in the inner space of the casing, and a liquid refrigerant discharge tube having a first end connected to the venturi tube and a second end opposite to the first end and communicating with the inner space of the casing at a lower side of the refrigerant discharge tube, where liquid refrigerant can be suppressed from excessively stagnating in the inner space of the casing.
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公开(公告)号：US11408423B2
公开(公告)日：2022-08-09
申请号：US16655587
申请日：2019-10-17
Applicant: LG ELECTRONICS INC.
Inventor： Yongkyu Choi , Kangwook Lee , Cheolhwan Kim , Byeongchul Lee
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. In a state in which the orbiting scroll and the fixed scroll are concentric with each other, when a distance between the orbiting wrap and the fixed wrap is defined as an orbiting radius, there exists an offset section having an interval larger than the orbiting radius, between a side surface of the orbiting wrap and a side surface of the fixed wrap which faces the orbiting wrap. With such a configuration, even if the fixed scroll or the orbiting scroll is transformed due to thermal expansion, interference between the fixed wrap and the orbiting wrap at a portion having a large transformation amount may be prevented. This may prevent a frictional loss or abrasion between the fixed wrap and the orbiting wrap. Further, this may restrict or minimize a gap between the fixed wrap and the orbiting wrap at an opposite side to the suction chamber, resulting in enhanced compression efficiency.
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公开(公告)号：US10533551B2
公开(公告)日：2020-01-14
申请号：US15491023
申请日：2017-04-19
Applicant: LG ELECTRONICS INC.
Inventor： Cheolhwan Kim , Yongkyu Choi , Taekyoung Kim
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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