公开(公告)号：US11746783B2

公开(公告)日：2023-09-05

申请号：US17181076

申请日：2021-02-22

Applicant: LG ELECTRONICS INC.

Inventor： Seseok Seol ,  Seoungmin Kang ,  Bumdong Sa

IPC: F04C18/344 ,  F04C29/00

CPC classification number: F04C18/344 ,  F04C29/0028

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. The at least one vane may include a pin that extends in an axial direction, and at least one of the first bearing and the second bearing may include a rail groove into which the pin may be inserted.

公开(公告)号：US11421688B2

公开(公告)日：2022-08-23

申请号：US17113230

申请日：2020-12-07

Applicant: LG ELECTRONICS INC.

Inventor： Bumdong Sa ,  Joonhong Park ,  Seseok Seol

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

Abstract: 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.