公开(公告)号：US11421688B2

公开(公告)日：2022-08-23

申请号：US17113230

申请日：2020-12-07

申请人： LG ELECTRONICS INC.

发明人： Bumdong Sa ,  Joonhong Park ,  Seseok Seol

IPC分类号： F04C18/344 ,  F01C21/08 ,  F01C21/10 ,  F04C29/12

摘要： A vane-type compressor is provided. The vane-type compressor may include a cylindrical cylinder having opposite open ends along an axial direction, an inner circumferential surface of the cylinder being eccentric from an outer circumferential surface of the cylinder, a main bearing and a sub bearing, respectively, positioned at the open ends of the cylinder, a rotor coupled to a shaft supported by the main bearing and the sub bearing and installed eccentric from the inner circumferential surface of the cylinder, and a plurality of vanes coupled to the rotor to rotate along with the rotor, the plurality of vanes dividing the inner circumferential surface of the cylinder into a plurality of spaces including a suction chamber and a compression chamber when the rotor rotates. An elastic member may be installed at a point at which a minimum gap is maintained between the inner circumferential surface of the cylinder and the rotor so that a portion of the elastic member protrudes inward of the inner circumferential surface of the cylinder. An end of a discharge dimple formed in the inner circumferential surface of the cylinder extends up to the point.

公开(公告)号：US11448216B2

公开(公告)日：2022-09-20

申请号：US17177683

申请日：2021-02-17

申请人： LG ELECTRONICS INC.

发明人： Joonhong Park ,  Seoungmin Kang ,  Jinung Shin

IPC分类号： F04C23/00 ,  F04C18/344 ,  F04C18/356 ,  F04C29/00

摘要： A rotary compressor is provided that may include a rotational shaft including at least one protrusion formed on an outer peripheral surface, 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. The rotor may include at least one groove which is formed on an inner peripheral surface and faces the at least one protrusion.

公开(公告)号：US20210363990A1

公开(公告)日：2021-11-25

申请号：US17183505

申请日：2021-02-24

申请人： LG ELECTRONICS INC.

发明人： Jinung SHIN ,  Seoungmin Kang ,  Joonhong Park

IPC分类号： F04C18/356 ,  F04C29/12

摘要： 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.

公开(公告)号：US20210180597A1

公开(公告)日：2021-06-17

申请号：US17113230

申请日：2020-12-07

申请人： LG ELECTRONICS INC.

发明人： Bumdong SA ,  Joonhong Park ,  Seseok Seol

IPC分类号： F04C18/344 ,  F04C18/356

摘要： A vane-type compressor is provided. The vane-type compressor may include a cylindrical cylinder having opposite open ends along an axial direction, an inner circumferential surface of the cylinder being eccentric from an outer circumferential surface of the cylinder, a main bearing and a sub bearing, respectively, positioned at the open ends of the cylinder, a rotor coupled to a shaft supported by the main bearing and the sub bearing and installed eccentric from the inner circumferential surface of the cylinder, and a plurality of vanes coupled to the rotor to rotate along with the rotor, the plurality of vanes dividing the inner circumferential surface of the cylinder into a plurality of spaces including a suction chamber and a compression chamber when the rotor rotates. An elastic member may be installed at a point at which a minimum gap is maintained between the inner circumferential surface of the cylinder and the rotor so that a portion of the elastic member protrudes inward of the inner circumferential surface of the cylinder. An end of a discharge dimple formed in the inner circumferential surface of the cylinder extends up to the point.

公开(公告)号：US11174863B2

公开(公告)日：2021-11-16

申请号：US16541260

申请日：2019-08-15

申请人： LG ELECTRONICS INC.

发明人： Joonhong Park ,  Kiyoul Noh ,  Seokhwan Moon

IPC分类号： F04C18/344 ,  F04C29/02

摘要： 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.

公开(公告)号：US10794187B2

公开(公告)日：2020-10-06

申请号：US15992314

申请日：2018-05-30

申请人： LG Electronics Inc.

发明人： Joonhong Park ,  Bumdong Sa

IPC分类号： F01C21/08 ,  F04C18/356 ,  F04C29/12 ,  F04C23/00

摘要： The present invention includes a case, a driving motor, a rotating shaft, a cylinder having a compression space formed in a central portion thereof, a roller, a main bearing and a sub bearing, and a vane for partitioning the compression space into a suction chamber and a compression chamber, wherein the vane includes a vane housing provided with a space portion and a communication hole formed through one side of a front end portion thereof to form a flow path of a compressed refrigerant, and a valve member slidably installed in the space portion of the vane housing and selectively communicating the space portion with the compression chamber, wherein the flow path of the compressed refrigerant is formed by the movement of the valve member.

公开(公告)号：US10982675B2

公开(公告)日：2021-04-20

申请号：US16260313

申请日：2019-01-29

申请人： LG ELECTRONICS INC.

发明人： Joonhong Park ,  Bumdong Sa

IPC分类号： F04C29/02 ,  F04C18/356 ,  F04C29/00 ,  F04C23/00 ,  F01C21/08

摘要： A rotary compressor may include a rotational shaft coupled to a drive motor and having a central passage, an eccentric portion provided eccentrically from the rotational shaft, a cylinder through which the rotational shaft passes, the cylinder forming a compression chamber in which refrigerant is accommodated, a roller an inner circumferential surface of which is in close contact with an outer circumferential surface of the eccentric portion, the roller rolling and compressing a refrigerant, a vane inserted into the cylinder, the vane protruding from an inner circumferential surface of the cylinder when backpressure is applied to the vane to be in contact with an outer circumferential surface of the roller, and partitioning the compression chamber into a plurality of chambers; a plurality of oil supply grooves on an outer circumferential surface of the eccentric portion; and an oil supply passage that communicates the central passage with the oil supply grooves.

公开(公告)号：US11619230B2

公开(公告)日：2023-04-04

申请号：US17502098

申请日：2021-10-15

申请人： LG ELECTRONICS INC.

发明人： Joonhong Park ,  Kiyoul Noh ,  Seokhwan Moon

IPC分类号： F04C18/344 ,  F04C29/02 ,  F04C29/00 ,  F01C21/08

摘要： 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.

公开(公告)号：US20230088672A1

公开(公告)日：2023-03-23

申请号：US17869037

申请日：2022-07-20

申请人： LG ELECTRONICS INC.

发明人： Seseok SEOL ,  Seoungmin Kang ,  Joonhong Park

IPC分类号： F04C18/344 ,  F04C29/12

摘要： A rotary compressor is provided that may include a cylinder having an inner peripheral surface defined in an annular shape to define a compression space, and provided with a suction port configured to communicate with the compression space and through which refrigerant is suctioned into the compression space; a roller rotatably provided in the compression space of the cylinder, and having a plurality of vane slots that provides a back pressure at one side thereinside and that is provided at a predetermined interval along an outer peripheral surface of the roller; and a plurality of vanes slidably inserted into the plurality of vane slots, respectively, and configured 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. High-pressure refrigerant may be accommodated between one of the plurality of vanes and the inner peripheral surface of the cylinder.

公开(公告)号：US11499555B2

公开(公告)日：2022-11-15

申请号：US16734679

申请日：2020-01-06

申请人： LG ELECTRONICS INC.

发明人： Kiyoul Noh ,  Seokhwan Moon ,  Joonhong Park

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

摘要： 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.