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公开(公告)号：US20230125736A1
公开(公告)日：2023-04-27
申请号：US17864599
申请日：2022-07-14
Applicant: LG ELECTRONICS INC.
Inventor： Jinung Shin , SeSeok Seol , Sedong Lee
IPC: F04C18/344 , F04C29/12
Abstract: A rotary compressor is provided that may include a cylinder having an inner peripheral surface defining a compression space; a roller rotatably provided in the compression space, and including a plurality of vane slots at a predetermined interval along an outer peripheral surface, each providing a back pressure; and a plurality of vanes slidably inserted into the plurality of vane slots to rotate together with the roller, front end surfaces of which come into contact with the inner peripheral surface of the cylinder due to the back pressure to partition the compression space into a plurality of compression chambers. The cylinder may further include a suction flow path for refrigerant that may include a suction port that communicates with the compression space to suction the refrigerant in a lateral direction, and a suction passage disposed in a direction that crosses the suction port to provide communication between the compression space and the suction port.
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2.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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公开(公告)号：US11644035B1
公开(公告)日：2023-05-09
申请号：US17881883
申请日：2022-08-05
Applicant: LG ELECTRONICS INC.
Inventor： Joonhong Park , Seoungmin Kang , Jinung Shin
CPC classification number: F04C18/3445 , F04C2/321 , F04C2/344 , F04C18/3442 , F04C29/124 , F04C23/008 , F04C2210/26 , F04C2240/50
Abstract: A rotary compressor may include a casing, a cylinder, a main bearing, a sub bearing, a rotational shaft, a roller having at least one vane slot and a back pressure chamber, and at least one vane. The roller may include at least one spring insertion groove formed in an inner end portion of the at least one vane slot in a lengthwise direction of the at least one vane slot, and a vane spring that supports a rear surface of the vane toward an inner circumferential surface of the cylinder may be disposed in the at least one spring insertion groove. Accordingly, elastic force may be supplied to the rear surface of the vane, to suppress or prevent trembling of the vane caused while the vane passes through a proximal portion during operation.
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公开(公告)号：US20210301662A1
公开(公告)日：2021-09-30
申请号：US17099943
申请日：2020-11-17
Applicant: LG ELECTRONICS INC.
Inventor： Seokhwan MOON , Jinung Shin , Kiyoul Noh
Abstract: A rotary compressor may include a rotational shaft; first and second bearings that support the rotational shaft in a radial direction; a cylinder disposed between the first bearing and the second bearing, and forming a compression space; a rotor forming a contact point, disposed in the compression space, and having a predetermined gap with the cylinder, and coupled to the rotational shaft to compress refrigerant according to rotation; and at least one vane slidably inserted into the rotor, and contacting an inner circumferential surface of the cylinder to separate the compression space into a plurality of regions. Each of the at least one vane may include an upper pin that extends upward, and a lower pin that extends downward, a surface of the first bearing may include a first rail groove into which the upper pin may be inserted, and a first step disposed adjacent to the first rail groove, and a surface of the second bearing may include a second rail groove into which the lower pin may be inserted, and a second step disposed adjacent to the second rail groove.
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公开(公告)号：US10954945B2
公开(公告)日：2021-03-23
申请号：US15986114
申请日：2018-05-22
Applicant: LG Electronics Inc.
Inventor： Jinung Shin , Seokhwan Moon , Kiyoul Noh
IPC: F04C29/12 , F04C18/344 , F04C29/00 , F04C23/00
Abstract: A rotary compressor includes a cylinder that is coupled to an inner space of a casing and that defines a compression space, a first bearing and a second bearing located at upper and lower sides of the cylinder, a roller disposed eccentrically with respect to an inner circumferential surface of the cylinder to vary a volume of the compression space based on rotation, and a vane inserted into the roller to rotate together with the roller, and drawn out toward the inner circumferential surface of the cylinder during the rotation of the roller to partition the compression space into a plurality of compression chambers. A suction passage communicating with the compression space is defined in the first bearing or the second bearing, and a suction port communicating between the suction passage and the compression space is defined on a side surface of the cylinder.
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Patent Agency Ranking
公开(公告)号：US11732712B2
公开(公告)日：2023-08-22
申请号：US17562175
申请日：2021-12-27
Applicant: LG ELECTRONICS INC.
Inventor： Seseok Seol , Jinung Shin , Joonhong Park
IPC: F04C2/344 , F04C15/06 , F04C18/356 , F04C18/344 , F04C29/12
CPC classification number: F04C2/344 , F04C15/06 , F04C2240/30 , F04C2240/50
Abstract: A rotary compressor may include a case, a cylinder, a roller, a vane, a main bearing and a sub bearing, and a discharge passage defined in the main bearing or the sub bearing to discharge refrigerant compressed in a compression space. The discharge passage may include at least one discharge hole formed through the main bearing or the sub bearing, and at least one discharge guide groove having a first end that communicates with the at least one discharge hole and a second end that extends from the at least one discharge hole toward a contact point between the cylinder and the roller and is recessed from one surface of the main bearing or the sub bearing forming the compression space. Accordingly, an amount of refrigerant remaining in the compression space even after a discharge stroke may be reduced.
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公开(公告)号：US11346344B2
公开(公告)日：2022-05-31
申请号：US16734755
申请日：2020-01-06
Applicant: LG ELECTRONICS INC.
Inventor： Kiyoul Noh , Seokhwan Moon , Jinung Shin
Abstract: A vane rotary compressor may include a cylinder provided with at least one outlet port; a plurality of bearings coupled to both sides of the cylinder in an axial direction of the cylinder to form a compression space together with the cylinder; a rotational shaft radially supported by the plurality of bearings; a roller rotatably coupled to the rotational shaft and provided with a plurality of vane slots formed in a circumferential direction, each having a first end opened to an outer circumferential surface thereof; a plurality of vanes slidably inserted into the plurality of vane slots of the roller, respectively, and protruding toward an inner circumferential surface of the cylinder to partition the compression space into a plurality of compression chambers, respectively; a discharge valve coupled to the cylinder to open and close the at least one outlet port; and at least one bypass hole formed in at least one of the plurality of bearings or formed in the cylinder to bypass a portion of refrigerant compressed in the compression chamber.
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公开(公告)号：US12110894B2
公开(公告)日：2024-10-08
申请号：US18282011
申请日：2022-03-16
Applicant: LG ELECTRONICS INC.
Inventor： Jinung Shin , Joonhong Park , Seoungmin Kang
IPC: F04C18/344 , F04C18/356 , F04C29/02
CPC classification number: F04C29/028 , F04C18/3441 , F04C18/356 , F04C29/023 , F04C2240/30 , F04C2240/56 , F04C2240/603
Abstract: A rotary compressor is provided that may include a casing having an oil storage space; a cylinder; a main bearing and a sub bearing; a rotary shaft; a roller having a vane slot and a back pressure chamber; and at least one vane. An oil supply hole that communicates the back pressure chamber with the oil storage space may pass through the main bearing or the sub bearing, or through the roller. Accordingly, as high-pressure oil is supplied directly to a rear end surface of the vane, it is possible to increase efficiency of the compressor by increasing a back pressure on the vane and suppressing a delay in starting the compressor, and it is also possible to reduce collision noise and wear in the vane and the cylinder by suppressing vibration of the vane.
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公开(公告)号：US11703055B2
公开(公告)日：2023-07-18
申请号：US17183505
申请日：2021-02-24
Applicant: LG ELECTRONICS INC.
Inventor： Jinung Shin , Seoungmin Kang , Joonhong Park
IPC: F04C18/356 , F04C29/12
CPC classification number: F04C18/3564 , F04C29/12 , F04C2240/20 , F04C2240/50 , F04C2240/60 , F05B2210/12 , F05B2240/20 , F05B2240/50
Abstract: A rotary compressor is provided that may include a rotational shaft, first and second bearings configured to support the rotational shaft in a radial direction, a cylinder disposed between the first and second bearings to form a compression space, a rotor disposed in the compression space and coupled to the rotational shaft to compress a refrigerant as the rotor rotates, and at least one vane slidably inserted into the rotor, the at least one vane coming into contact with an inner peripheral surface of the cylinder to separate the compression space into a plurality of regions. At least one of the first bearing and the second bearing may include first and second pockets formed on a surface facing the rotor, and at least one of the first pocket and the second pocket may be formed in an asymmetrical shape.
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公开(公告)号：US11378079B2
公开(公告)日：2022-07-05
申请号：US17099943
申请日：2020-11-17
Applicant: LG ELECTRONICS INC.
Inventor： Seokhwan Moon , Jinung Shin , Kiyoul Noh
Abstract: A rotary compressor may include a rotational shaft; first and second bearings that support the rotational shaft in a radial direction; a cylinder disposed between the first bearing and the second bearing, and forming a compression space; a rotor forming a contact point, disposed in the compression space, and having a predetermined gap with the cylinder, and coupled to the rotational shaft to compress refrigerant according to rotation; and at least one vane slidably inserted into the rotor, and contacting an inner circumferential surface of the cylinder to separate the compression space into a plurality of regions. Each of the at least one vane may include an upper pin that extends upward, and a lower pin that extends downward, a surface of the first bearing may include a first rail groove into which the upper pin may be inserted, and a first step disposed adjacent to the first rail groove, and a surface of the second bearing may include a second rail groove into which the lower pin may be inserted, and a second step disposed adjacent to the second rail groove.
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