公开(公告)号：US20210025389A1

公开(公告)日：2021-01-28

申请号：US16880158

申请日：2020-05-21

Applicant: LG Electronics Inc.

Inventor： Ki Sun KIM ,  Sangha LEE ,  Jaeyeol LEE

IPC: F04C18/39 ,  F04C29/02

Abstract: A rotary compressor includes a roller that is provided with oil grooves concavely formed in a centrifugal direction from an inner circumferential surface of the roller facing an eccentric portion. The oil grooves are disposed at positions not overlapping an intake and a discharge port in an axial direction.

公开(公告)号：US20210017984A1

公开(公告)日：2021-01-21

申请号：US16931163

申请日：2020-07-16

Applicant: LG Electronics Inc.

Inventor： Ki Sun KIM ,  Sangha LEE ,  Jaeyeol LEE

IPC: F04C2/38 ,  F04C15/06

Abstract: A rotary compressor includes a cylinder having a vane slot and a compression chamber, a shaft having an eccentric portion and configured to perpendicularly pass through a center of the compression chamber, a roller having a coupling groove and configured to orbit in the compression chamber by rotation of the shaft, and a vane having a vane hinge coupled to the coupling groove and a vane body being inserted into the vane slot and configured to divide the compression chamber into a discharge space and a suction space. A shape of the discharge-sided groove close to the discharge space and a shape of the suction-sided groove close to the suction space are asymmetrically formed between the vane hinge and the vane body with respect to the a central axis of the vane.