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公开(公告)号：US20190277289A1
公开(公告)日：2019-09-12
申请号：US16207380
申请日：2018-12-03
Applicant: LG ELECTRONICS INC.
Inventor： Byungkil YOO , Sanghun SEONG , Jinyong JANG , Dongwoo MIN , Kyoungjun PARK , Junghoon PARK , Byeongchul LEE
Abstract: A scroll compressor is disclosed. The scroll compressor includes a first scroll and a second scroll engaged with the first scroll and configured to perform an orbiting movement. The second scroll forms a compression chamber between the first scroll and the second scroll. The scroll compressor includes a frame positioned opposite the first scroll with the second scroll interposed therebetween. The scroll compressor also includes an oldham ring that has an annular ring portion and a key portion protruding from the ring portion. The key portion is slidably coupled to a key groove provided in the frame or in the second scroll to allow the second scroll to perform an orbiting movement with respect to the first scroll. The scroll compressor also include a reinforcing member coupled to the key portion. The reinforcing member is positioned between the key groove and the key portion.
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12.发明申请公开(公告)号：US20180363655A1
公开(公告)日：2018-12-20
申请号：US15830135
申请日：2017-12-04
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 m an oil storage chamber upward through a rotary shaft to supply the oil lo 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：US20180328362A1
公开(公告)日：2018-11-15
申请号：US15974358
申请日：2018-05-08
Applicant: LG Electronics Inc.
Inventor： Cheolhwan KIM , Taekyoung KIM , Kangwook LEE , Byeongchul LEE
CPC classification number: F04C18/0215 , F04C23/008 , F04C29/026 , F04C29/045 , F04C29/12
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：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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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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Patent Agency Ranking
公开(公告)号：US20200340477A1
公开(公告)日：2020-10-29
申请号：US16914726
申请日：2020-06-29
Applicant: LG ELECTRONICS INC.
Inventor： Sang Baek PARK , Jungsun CHOI , Cheol Hwan KIM , Byeongchul LEE
Abstract: A compressor is provided which is configured to allow lubrication of a thrust surface through an oil groove formed in a thrust surface of a fixed scroll. Also, a scroll compressor is provided which smoothly supplies oil to a thrust surface of a fixed scroll by including a fixed scroll having an oil groove formed in the thrust surface of a fixed scroll sidewall, and allows an injection pressure acting on an orbiting scroll in an upward direction to be added by supplying the oil guided to the oil groove to the thrust surface of the fixed scroll such that an overturn moment generated in the orbiting scroll may be offset.
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17.发明申请公开(公告)号：US20200240409A1
公开(公告)日：2020-07-30
申请号：US16635956
申请日：2018-07-30
Applicant: LG Electronics Inc.
Inventor： Jaeha LEE , Jinho KIM , Sungyong AHN , Byeongchul LEE , Seheon CHOI
Abstract: A bush bearing having an outer lubricating layer, a manufacturing method therefor and a scroll compressor having same applied thereto, according to the present disclosure, includes a bush bearing comprising: a base member which has a cylindrical shape having no separated surfaces along the circumferential direction; and a lubricating member which is formed from a material having a lower rigidity and more excellent lubricity than the base member, and has a cylindrical shape having no separated surfaces along the circumferential direction by being integrally provided to the outer circumferential surface of the base member, wherein the cylindricity of the outer circumferential surface of the lubricating member satisfies a value that is within 0.6% of the average thickness of the lubricating member, and the lubricating member has carbon fiber contained in a resin base, wherein the carbon fiber has cut surfaces exposed on both ends of the lubricating member.
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公开(公告)号：US20200088195A1
公开(公告)日：2020-03-19
申请号：US16573480
申请日：2019-09-17
Applicant: LG Electronics Inc.
Inventor： Byungkil YOO , Kyoungjun PARK , Byeongchul LEE , Yongkyu CHOI
Abstract: A scroll type compressor includes a motor including a rotor; a rotatable shaft coupled to the rotor; a frame disposed adjacent to the motor to support the rotatable shaft; a fixed scroll coupled to the frame; an orbiting scroll eccentrically coupled to the rotatable shaft, wherein the orbiting scroll is engaged with the fixed scroll to orbit relative to the fixed scroll; and a balance weight including: a coupling portion having an inner opening defined therein receiving the rotatable shaft, wherein the coupling portion is coupled to and between the rotor and the frame; and a weight portion extending from an outer periphery of the coupling portion.
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公开(公告)号：US20200049146A1
公开(公告)日：2020-02-13
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：US20180195520A1
公开(公告)日：2018-07-12
申请号：US15864082
申请日：2018-01-08
Applicant: LG ELECTRONICS INC.
Inventor： Junchul OH , Byeongchul LEE , Seheon CHOI
CPC classification number: F04D27/002 , F04D17/122 , F04D25/06 , F04D29/0513 , F04D29/0516 , F04D29/053 , F04D29/286 , F04D29/4206 , F04D29/5806
Abstract: A turbo compressor is provided that may include an impeller housing having an impeller accommodation space, an inlet formed at a first side of the impeller accommodation space, and an outlet formed at a second side of the impeller accommodation space that communicates with the inlet; an impeller accommodated in the impeller accommodation space of the impeller housing, rotated together with a rotary shaft by being coupled to the rotary shaft, and configured to centrifugally-compress a fluid suctioned through the inlet of the impeller housing and discharge the compressed fluid outside of the impeller housing through the outlet; a back pressure space formed between a rear surface of the impeller and the impeller housing; a back pressure passage connected between the outlet of the impeller housing and the back pressure space; and a back pressure control valve installed between the back pressure passage and the back pressure space, and configured to selectively open and close a region therebetween.
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