公开(公告)号：US11434908B2

公开(公告)日：2022-09-06

申请号：US16914726

申请日：2020-06-29

Applicant: LG ELECTRONICS INC.

Inventor： Sang Baek Park ,  Jungsun Choi ,  Cheol Hwan Kim ,  Byeongchul Lee

IPC: F01C1/02 ,  F03C2/00 ,  F03C4/00 ,  F04C18/00 ,  F04C2/00 ,  F04C18/02 ,  F01C21/00 ,  F04C29/12 ,  F04C29/02 ,  F04C23/00

Abstract: A compressor is provided which is configured to allow lubrication of a thrust surface through an oil groove formed in a thrust surface of a fixed scroll. Also, a scroll compressor is provided which smoothly supplies oil to a thrust surface of a fixed scroll by including a fixed scroll having an oil groove formed in the thrust surface of a fixed scroll sidewall, and allows an injection pressure acting on an orbiting scroll in an upward direction to be added by supplying the oil guided to the oil groove to the thrust surface of the fixed scroll such that an overturn moment generated in the orbiting scroll may be offset.

公开(公告)号：US11002273B2

公开(公告)日：2021-05-11

申请号：US16409186

申请日：2019-05-10

Applicant: LG Electronics Inc.

Inventor： Jungsun Choi ,  Sang Baek Park ,  Cheol Hwan Kim

IPC: F04C18/02

Abstract: A scroll compressor includes a casing; a drive motor; a rotary shaft; a fixed scroll including a fixed wrap; and an orbiting scroll eccentrically coupled to rotary shaft and including an orbiting wrap configured to engage with the fixed wrap. At least one of the fixed wrap or the orbiting wrap defines an offset section that is defined between the fixed wrap and the orbiting wrap and that is greater than an orbital radius corresponding to a distance between the fixed wrap and the orbiting wrap in a state in which a center of the fixed scroll is aligned to a center of the orbiting scroll. The offset section is disposed at a contact portion between the fixed wrap and the orbiting wrap. The contact portion has a maximum length based on a rotation angle of the rotary shaft being within a pre-set range with respect to a reference point.

公开(公告)号：US11441565B2

公开(公告)日：2022-09-13

申请号：US16409138

申请日：2019-05-10

Applicant: LG Electronics Inc.

Inventor： Sang Baek Park ,  Jungsun Choi ,  Cheol Hwan Kim

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

Abstract: A scroll compressor includes a drive motor, a rotary shaft coupled to the drive motor, a main frame disposed below the drive motor, a fixed scroll disposed below the main frame, an orbiting scroll disposed between the main frame and the fixed scroll and eccentrically coupled to the rotary shaft, and an Oldham's ring coupled to the main frame and the orbiting scroll and configured to restrict rotation of the orbiting scroll relative to the fixed scroll. The Oldham's ring includes: a ring body, a first key that receives a first fixing boss of the ring body and that is configured to couple to the main frame, and a second key that receives a second fixing boss of the ring body and that is configured to couple to the orbiting scroll.