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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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公开(公告)号：US20240376895A1
公开(公告)日：2024-11-14
申请号：US18691383
申请日：2022-07-29
Applicant: LG ELECTRONICS INC.
Inventor： Byungkil YOO , Jungsun CHOI , Seheon CHOI
Abstract: A scroll compressor includes a plurality of fixing protrusions that are provided spaced apart from each other in a key that constitutes an Oldham ring, and an orbiting scroll, to which the key is coupled, or a ring body of the Oldham ring may be provided with a plurality of fixing grooves which are spaced part from each other and into which the plurality of fixing protrusions are respectively inserted and fixed.
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公开(公告)号：US20230358232A1
公开(公告)日：2023-11-09
申请号：US18066615
申请日：2022-12-15
Applicant: LG Electronics Inc.
Inventor： Byungkil YOO , Jungsun CHOI , Seheon CHOI
IPC: F04C18/02
CPC classification number: F04C18/0269 , F04C18/0215
Abstract: A scroll compressor is disclosed. The scroll compressor includes a rotating shaft coupling portion axially extending from a central portion of an orbiting end plate to radially overlap an orbiting wrap, such that an eccentric portion of a rotating shaft is coupled thereto, and a portion of the orbiting wrap may extend from an end surface of the rotating shaft coupling portion facing a fixed end plate. With the configuration, a distance between bearing reaction force and gas reaction force acting on the orbiting scroll can be reduced, to stabilize a behavior of the orbiting scroll and thus reduce back pressure, thereby decreasing friction loss between scrolls. Simultaneously, compression chambers can be formed even in a central portion of the orbiting scroll, which can increase a compression ratio and improve volumetric efficiency.
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公开(公告)号：US20230213034A1
公开(公告)日：2023-07-06
申请号：US17991228
申请日：2022-11-21
Applicant: LG Electronics Inc.
Inventor： Jungsun CHOI , Byungkil YOO , Seheon CHOI
CPC classification number: F04C18/0215 , F04C29/0042
Abstract: A scroll compressor includes a casing, a main frame, a rotating shaft, an orbiting scroll, a fixed scroll configured to engage the orbiting scroll to form a compression chamber, and an Oldham ring slidably coupled to the orbiting scroll to prevent rotation of the orbiting scroll. The Oldham ring includes: a ring body provided between the main frame and the orbiting scroll to be supported in an axial direction of the rotating shaft, and a key portion extending in the axial direction from the ring body and slidably inserted into a key accommodating portion provided in the orbiting scroll, the main frame, or the fixed scroll. The ring body or the key portion includes an oil supply passage for guiding oil accumulated in a member on which the ring body is supported to between the key portion and the key accommodating portion.
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公开(公告)号：US20230023176A1
公开(公告)日：2023-01-26
申请号：US17960241
申请日：2022-10-05
Applicant: LG ELECTRONICS INC.
Inventor： Jun Chul OH , Kyungmin KIM , Seheon CHOI
IPC: F04D29/58 , F04D17/10 , F04D29/051 , F04D29/053 , F04D29/054
Abstract: A turbo compressor may include a motor casing having a motor space; a drive motor provided in the motor space; a rotary shaft coupled to the drive motor and configured to transmit a rotational force; an impeller coupled to a first side of the rotary shaft and configured to rotate together with a rotation of the rotary shaft; a thrust bearing runner coupled to a second side of the rotary shaft opposite to the first side and configured to rotate together with the rotation of the rotary shaft; a bearing casing to support the thrust bearing runner; an inlet flow path configured to guide fluid introduced into the impeller; a discharge flow path configured to guide fluid discharged from the impeller; and a cooling flow path branched from the discharge flow path and configured to guide the fluid to the bearing casing.
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Patent Agency Ranking
公开(公告)号：US20210172458A1
公开(公告)日：2021-06-10
申请号：US17055289
申请日：2019-04-24
Applicant: LG ELECTRONICS INC.
Inventor： Jun Chul OH , Kyungmin KIM , Seheon CHOI
IPC: F04D29/58 , F04D17/10 , F04D29/051 , F04D29/053
Abstract: A turbo compressor comprises a rotary shaft including a rotor; a first impeller coupled to one side of the rotary shaft, a thrust bearing runner coupled between the first impeller and the rotary shaft, an impeller sleeve compressed and coupled between the first impeller and the thrust bearing runner, a second impeller coupled to the other side of the rotary shaft, and a tie rod passing through the first impeller and a thrust bearing and fastened to the rotary shaft.
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公开(公告)号：US20200291987A1
公开(公告)日：2020-09-17
申请号：US16812806
申请日：2020-03-09
Applicant: LG Electronics Inc.
Inventor： Changgook MOON , Jun Chul OH , Seheon CHOI
IPC: F16C17/04
Abstract: Disclosed herein is a thrust bearing for a turbo compressor, the thrust bearing has a structure that is modified in response to a portion where a deformation amount of a thrust runner is relatively large on the basis of magnitude of a force applied at the time of rotation of a shaft of a turbo compressor, to maintain a thickness of an oil film constantly and to increase a load supporting force of the thrust bearing, thereby ensuring improved durability of the thrust bearing.
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公开(公告)号：US20200149531A1
公开(公告)日：2020-05-14
申请号：US16528716
申请日：2019-08-01
Applicant: LG ELECTRONICS INC.
Inventor： Joonhong PARK , Seoungmin KANG , Seheon CHOI
IPC: F04C18/344
Abstract: A vane rotary compressor has a cylinder. A main bearing and a sub bearing are coupled to the cylinder forming a compression space. The main and sub bearing each have a back pressure pocket on a surface facing the cylinder. The main bearing and the sub bearing radially support a rotation shaft. A roller coupled to the shaft is disposed within the compression space. The roller has circumferentially spaced vane slots, each vane slot extending from an open end on an outer circumferential surface of the roller to a back pressure chamber disposed within the roller at an opposite end of each vane slot. A plurality of vanes slide within the vane slots and divide the compression space into compression chambers. At least one of the back pressure chambers in the vane slots fluidly communicates with at least one of the back pressure pockets in the main and sub bearings.
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公开(公告)号：US20170067467A1
公开(公告)日：2017-03-09
申请号：US15244543
申请日：2016-08-23
Applicant: LG ELECTRONICS INC.
Inventor： Jaeha LEE , Junchul OH , Seheon CHOI , Byeongchul LEE
CPC classification number: F04C29/026 , F04C18/0215 , F04C23/008 , F04C29/005 , F04C29/0085 , F04C29/12 , F04C2210/206 , F04C2210/26 , F04C2240/10 , F04C2240/20 , F04C2240/30 , F05C2201/021
Abstract: A scroll compressor is provided that may include a casing; a drive motor; a fixed scroll that forms a compression space by being coupled to the orbiting scroll; and a discharge cover provided at an inner space of the casing, the discharge cover having a space that communicates with the compression space and separated from the inner space of the casing, and having one or more discharge hole on a side surface thereof, the one or more discharge hole providing communication between an inside and an outside of the space. With such a configuration, vibration noise of the scroll compressor may be more reduced in comparison with a case in which an oil separator is provided outside of the casing. Further, as an area of the one or more discharge hole and a volume of the space are optimized, efficiency of the scroll compressor may be enhanced.
Abstract translation: 提供一种可包括壳体的涡旋压缩机; 驱动电机; 固定涡卷，其通过联接到所述绕动涡旋件而形成压缩空间; 以及设置在所述壳体的内部空间处的排出盖，所述排出盖具有与所述压缩空间连通并与所述壳体的内部空间分离的空间，并且在其侧面具有一个或多个排出孔， 或更多的排出孔，其提供空间的内部和外部之间的连通。 通过这样的结构，与在壳体外部设置油分离器的情况相比，涡旋式压缩机的振动噪声可能会更多。 此外，随着一个或多个排放孔的区域和空间的体积被优化，可以提高涡旋压缩机的效率。
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公开(公告)号：US20160061203A1
公开(公告)日：2016-03-03
申请号：US14782393
申请日：2014-06-02
Applicant: LG ELECTRONICS INC.
Inventor： Yoonsung CHOI , Byungkil YOO , Seheon CHOI , Jinho KIM , Chuljig BAE , Byeongchul LEE
CPC classification number: F04C23/005 , F04C18/0215 , F04C18/0253 , F04C18/3564 , F04C23/008 , F04C29/0057 , F04C29/12 , F04C2240/56 , F05C2225/00
Abstract: A compressor according to the present disclosure may include a container; a drive motor provided in the container; a crankshaft coupled to a rotor of the drive motor; a first scroll coupled to the crankshaft to receive a rotational force of the drive motor to perform an orbiting movement; a second scroll coupled to the first scroll to form a first compression unit and a second compression unit along with the first scroll; and a vane provided in the first scroll or second scroll to be brought into contact with the other side scroll to form the second compression unit, wherein the first compression unit is carried out in a scroll compression mode and the second compression unit is carried out in a rotary compression mode.
Abstract translation: 根据本公开的压缩机可以包括容器; 设置在容器中的驱动马达; 联接到所述驱动马达的转子的曲轴; 耦合到所述曲轴以接收所述驱动电动机的旋转力以执行轨道运动的第一涡旋; 第二涡卷，其联接到所述第一涡旋件，以与所述第一涡旋件一起形成第一压缩单元和第二压缩单元; 以及设置在所述第一涡旋件或第二涡旋件中以与所述另一侧涡旋件接触以形成所述第二压缩单元的叶片，其中所述第一压缩单元以涡旋压缩模式执行，并且所述第二压缩单元在 旋转压缩模式。
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