公开(公告)号：US11578724B2

公开(公告)日：2023-02-14

申请号：US17179708

申请日：2021-02-19

Applicant: LG ELECTRONICS INC.

Inventor： Seokhwan Moon ,  Seseok Seol ,  Kiyoul Noh

IPC: F04C18/348 ,  F04C18/356 ,  F04C18/32 ,  F01C21/08 ,  F01C1/32 ,  F04C29/12 ,  F01C21/02 ,  F01C21/18 ,  F01C1/324

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 to form a contact point forming a predetermined gap with the cylinder 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 each vane coming into contact with an inner peripheral surface of the cylinder to separate the compression space into a plurality of regions. The at least one vane may include a pin that extends upward or downward, and a lower surface of the first bearing or an upper surface of the second bearing may include a rail groove into which the pin may be inserted.

公开(公告)号：US11499555B2

公开(公告)日：2022-11-15

申请号：US16734679

申请日：2020-01-06

Applicant: LG ELECTRONICS INC.

Inventor： Kiyoul Noh ,  Seokhwan Moon ,  Joonhong Park

IPC: F04C18/344 ,  F04C29/02 ,  F04C15/06

Abstract: A vane rotary compressor may include a main bearing and a sub bearing provided with a plurality of back pressure pockets each having a different pressure formed on a surface facing the cylinder, a rotational shaft radially supported by the main bearing and the sub bearing, a roller provided with a back pressure chamber that communicates with the plurality of back pressure pockets and having a plurality of vanes configured to divide a compression space into a plurality of compression chambers. At least one of the main bearing or the sub bearing is provided with an oil supply passage that communicates with a back pressure pocket having a relatively low pressure among the plurality of back pressure pockets. Accordingly, oil may be smoothly supplied to a back pressure pocket having a low pressure.

公开(公告)号：US11300122B2

公开(公告)日：2022-04-12

申请号：US16598098

申请日：2019-10-10

Applicant: LG ELECTRONICS INC.

Inventor： Seokhwan Moon ,  Seungmin Kang ,  Seheon Choi

IPC: F03C2/00 ,  F03C4/00 ,  F04C2/00 ,  F04C2/44 ,  F04C18/356 ,  F04C23/00

Abstract: A vane rotary compressor includes: a cylinder forming a compression space having an inlet port and an outlet port, a roller having an outer circumferential surface of one side thereof almost coming into contact with an inner circumferential surface of the cylinder to form a contact point, and a plurality of vanes slidably inserted into the roller to protrude toward the inner circumferential surface of the cylinder so as to divide the compression space into a plurality of compression chambers, wherein ion at least one of the outer circumferential surface of the roller and the inner circumferential surface of the cylinder is provided a surface contact portion between the outer circumferential surface of the cylinder and the inner circumferential surface of the roller is constantly maintained in a preset section including the contact point in a circumferential direction.

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.

公开(公告)号：US20200277956A1

公开(公告)日：2020-09-03

申请号：US16734679

申请日：2020-01-06

Applicant: LG ELECTRONICS INC.

Inventor： Kiyoul NOH ,  Seokhwan Moon ,  Joonhong Park

IPC: F04C18/344 ,  F04C15/06

Abstract: A vane rotary compressor may include a main bearing and a sub bearing provided with a plurality of back pressure pockets each having a different pressure formed on a surface facing the cylinder, a rotational shaft radially supported by the main bearing and the sub bearing, a roller provided with a back pressure chamber that communicates with the plurality of back pressure pockets and having a plurality of vanes configured to divide a compression space into a plurality of compression chambers. At least one of the main bearing or the sub bearing is provided with an oil supply passage that communicates with a back pressure pocket having a relatively low pressure among the plurality of back pressure pockets. Accordingly, oil may be smoothly supplied to a back pressure pocket having a low pressure.

公开(公告)号：US20240240637A1

公开(公告)日：2024-07-18

申请号：US18404022

申请日：2024-01-04

Applicant: LG ELECTRONICS INC.

Inventor： Sanghun SEONG ,  Seokhwan Moon ,  Jinyong Jang ,  Sooho Jang

IPC: F04C28/06 ,  F04C18/02 ,  F04C29/12

CPC classification number: F04C28/065 ,  F04C18/0215 ,  F04C29/128

Abstract: A scroll compressor is provided that may include first and second variable-capacity units that provide communication between a first intermediate pressure chamber and a low-pressure portion and between a second intermediate pressure chamber and the low-pressure portion. The first variable-capacity unit may include a first variable-capacity passage that communicates with the intermediate pressure chamber, at least one first variable-capacity valve that opens/closes the first variable-capacity passage, and a first variable-capacity opening and closing valve that controls opening/closing of the at least one first variable-capacity valve, and the second variable-capacity unit may include a second variable-capacity passage that communicates with a second intermediate pressure chamber, at least one second variable-capacity valve that opens/closes the second variable-capacity passage, and a second variable-capacity opening and closing valve that controls opening/closing of the at least one second variable-capacity valve.

公开(公告)号：US12000394B2

公开(公告)日：2024-06-04

申请号：US17993605

申请日：2022-11-23

Applicant: LG ELECTRONICS INC.

Inventor： Gunyoung Park ,  Seokhwan Moon ,  Kitae Jang ,  Jongtae Her

IPC: F04C29/02 ,  F01C17/06 ,  F04C15/00 ,  F04C18/02 ,  F04C29/00

CPC classification number: F04C18/0215 ,  F04C29/0042

Abstract: A scroll compressor is disclosed. The scroll compressor may include an anti-rotation mechanism provided with an anti-rotation pin and an anti-rotation ring between an orbiting scroll and a scroll support member facing the orbiting scroll, and an axial thickness of the ring body portion constituting the anti-rotation ring may be larger than an axial depth of a ring insertion groove in which the anti-rotation ring is inserted. This can allow the orbiting scroll and a member facing the same to be spaced physically apart without a separate member, to secure a gap for oil to flow, such that the oil can be smoothly supplied between the orbiting scroll and the member, thereby suppressing seizure or/and friction loss between the orbiting scroll and the member.

公开(公告)号：US11530612B2

公开(公告)日：2022-12-20

申请号：US17096059

申请日：2020-11-12

Applicant: LG ELECTRONICS INC.

Inventor： Seokhwan Moon ,  Kiyoul Noh ,  Bumdong Sa

IPC: F03C2/00 ,  F03C4/00 ,  F04C2/00 ,  F04C18/00 ,  F01C21/08 ,  F04C18/344 ,  F01C21/10

Abstract: A rotary compressor may include a rotational shaft, a first bearing and a second bearing each supporting the rotational shaft in a radial direction, a cylinder disposed between the first bearing and the second bearing and forming a compression space, a roller disposed in the compression space to form a contact point spaced at a predetermined interval from the cylinder and coupled to the rotational shaft to compress a refrigerant in response to rotation of the roller, and at least one vane slidably inserted into the roller and in contact with an inner circumferential surface of the cylinder and dividing the compression space into a plurality of compression chambers.

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

IPC: F04C29/12 ,  F04C18/32 ,  F04C14/26 ,  F04C28/26 ,  F04C18/344 ,  F01C21/10 ,  F04C23/00

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.

公开(公告)号：US11174863B2

公开(公告)日：2021-11-16

申请号：US16541260

申请日：2019-08-15

Applicant: LG ELECTRONICS INC.

Inventor： Joonhong Park ,  Kiyoul Noh ,  Seokhwan Moon

IPC: F04C18/344 ,  F04C29/02

Abstract: A vane rotary compressor includes a roller rotatably supported in a cylinder and including a plurality of vane slots formed along a circumferential direction with back pressure chambers formed at one end of each of the vane slots A plurality of vanes are slidably supported in the vane slots protruding toward an inner circumferential surface of the cylinder. A compression space formed by the vanes between the roller and the cylinder includes an inlet port and an outlet port formed at both sides of a contact point between the roller and the cylinder. A vane positioned between the inlet port and the outlet port is configured such that a front gap between a front surface of the vane and the inner circumferential surface of the cylinder is smaller than a rear gap between a rear surface of the vane and an inner surface of the back pressure chamber.