公开(公告)号：US11346221B2

公开(公告)日：2022-05-31

申请号：US16241160

申请日：2019-01-07

Applicant: LG ELECTRONICS INC.

Inventor： Seokhwan Moon ,  Seoung-Min Kang ,  Kiyoul Noh

IPC: F01C21/08 ,  F01C1/344 ,  F25B1/04 ,  F04C18/344 ,  F04C28/22 ,  F04C29/12

Abstract: A backpressure rotary compressor may include at least one vane, at least one vane slot configured to accommodate the at least one vane and provided with a pocket portion and a slide portion, and a backpressure passage provided with a backpressure inlet disposed in front of the at least one vane slot and a backpressure outlet formed in the pocket portion. The backpressure passage may perform a role of allowing a compression chamber and the pocket portion to communicate with each other. According to the backpressure passage rotary compressor, proper pressure may be supplied to an inner end of the vane, thereby reducing a mechanical loss caused by pressure occurring in a close contact portion between an outer end of the at least one vane and an inner circumferential surface of the cylinder, and achieving high efficiency in relation to driving a device.

公开(公告)号：USRE50087E1

公开(公告)日：2024-08-20

申请号：US17673724

申请日：2022-02-16

Applicant: LG Electronics Inc.

Inventor： Seokhwan Moon ,  Seoung-Min Kang ,  Kiyoul Noh

IPC: F04C29/12 ,  F04C18/344

CPC classification number: F04C29/124 ,  F04C18/3442 ,  F04C29/128 ,  F04C2240/30

Abstract: The present disclosure provides a compressor including a rounded portion surrounding a discharge port, including a cylinder without an oil-blocking structure for ease of shaping the rounded portion, and including a valve-recess cover coupled to the cylinder. At least one valve-recess is defined in an outer face portion of the cylinder. A discharge valve assembly is fixedly received in the valve-recess, wherein the discharge valve assembly is configured for opening and closing the discharge port. The valve-recess is defined between the outer face, primary and secondary side blocks. The rounded portion surrounds the discharge port, to reduce a contact area between the discharge port and the valve assembly.

公开(公告)号：US10989197B2

公开(公告)日：2021-04-27

申请号：US16010687

申请日：2018-06-18

Applicant: LG Electronics Inc.

Inventor： Seokhwan Moon ,  Seoung-Min Kang ,  Kiyoul Noh

IPC: F01C21/00 ,  F03C2/00 ,  F03C4/00 ,  F04C2/00 ,  F04C29/12 ,  F04C18/344

Abstract: The present disclosure provides a compressor including a rounded portion surrounding a discharge port, including a cylinder without an oil-blocking structure for ease of shaping the rounded portion, and including a valve-recess cover coupled to the cylinder. At least one valve-recess is defined in an outer face portion of the cylinder. A discharge valve assembly is fixedly received in the valve-recess, wherein the discharge valve assembly is configured for opening and closing the discharge port. The valve-recess is defined between the outer face, primary and secondary side blocks. The rounded portion surrounds the discharge port, to reduce a contact area between the discharge port and the valve assembly.