公开(公告)号：US20190226481A1

公开(公告)日：2019-07-25

申请号：US16252299

申请日：2019-01-18

Applicant: LG Electronics Inc.

Inventor： Young Hwan KIM ,  Seungwook KIM

IPC: F04C15/00 ,  F04C2/10 ,  F04C15/06

Abstract: Disclosed is a trochoid lubricant supply device that is configured to connect to a rotational shaft. A connector of the lubricant supply device is configured to reduce an oil leakage amount of lubricant, and is configured to insert to a lower portion of a rotational shaft. The connector includes: a rotator mounting member inserted into and fixed to the rotator of the lubricant supply device; a penetrating member that penetrates a fixer of the lubricant supply device; an enlarged diameter extending radially outwards from the penetrating member outside the fixer; and a rotational shaft mounting member extending axially in the diameter enlarged member and is fastened to the rotational shaft. Further, the lubricant supply device of the present disclosure can supply the oil regardless of a rotation direction of the rotational shaft by supplying the oil by a space pivoting about the rotational center of the rotator.

公开(公告)号：US20190093658A1

公开(公告)日：2019-03-28

申请号：US16135398

申请日：2018-09-19

Applicant: LG ELECTRONICS INC.

Inventor： Ki Yeon LEE ,  Seungwook KIM ,  Young Hwan KIM

IPC: F04C29/02 ,  F04C18/02

Abstract: A lubricating oil supply apparatus having a structure in which a valve is forced in a direction for opening a bypass hole by a centrifugal force, and a spring presses the valve in a direction in which the valve closes the bypass hole. When the above-described structure is applied to an oil pump in which an oil (lubricating oil) supply amount increases in proportion to an operation speed, it is possible to secure a sufficient oil (lubricating oil) supply amount in a low speed operation mode, and prevent oil from being supplied more than necessary in a high speed operation mode.

公开(公告)号：US20190093650A1

公开(公告)日：2019-03-28

申请号：US16136382

申请日：2018-09-20

Applicant: LG ELECTRONICS INC.

Inventor： Seungwook KIM ,  Ki Yeon Lee ,  Jongmok Lee

IPC: F04B39/12 ,  F04B37/12 ,  F04B39/10 ,  F04B39/00

Abstract: A reciprocating type compressor having a structure in which a rotational support of a rotational shaft and a cylinder are manufactured as separate components; a frame provided with the rotational support fixes the cylinder; and a cylinder head is fixed to the frame to cover the cylinder.

公开(公告)号：US20200088180A1

公开(公告)日：2020-03-19

申请号：US16574967

申请日：2019-09-18

Applicant: LG Electronics Inc.

Inventor： Younghwan KIM ,  Seungwook KIM

IPC: F04B39/02

Abstract: A compressor includes: a driving unit including a stator, a rotor, and a rotary shaft provided in the rotor, having an oil guide path formed at an inner side in a radius direction; a compression unit coupled to the rotary shaft, having a cylinder and a piston reciprocating in the cylinder by a driving force of the driving unit; and an oil supply unit coupled to a lower end of the rotary shaft, supplying oil toward the compression unit. The oil supply unit includes a rotary portion for supplying oil toward the oil guide path while being rotated together with the rotary shaft and a fixed portion having an inner space partitioned to accommodate at least a portion of the rotary portion, and the oil guide path is formed to pass through the rotary shaft along a length direction.

公开(公告)号：US20190093649A1

公开(公告)日：2019-03-28

申请号：US16134157

申请日：2018-09-18

Applicant: LG ELECTRONICS, INC.

Inventor： Seungwook KIM ,  Wonseok Kang ,  Jongmok Lee

IPC: F04B39/12

Abstract: A reciprocating type compressor includes a crank shaft that is coupled to a rotor of a motor to transfer a rotational force, a piston that compresses a refrigerant while linearly moving within a cylinder of a compression portion, a connecting rod that connects the crank shaft to the piston to convert a rotational force of the crank shaft into a linear motion of the piston, and a cylinder boss integral body in which the cylinder and a boss that encloses the crank shaft are integrally formed at right angles to each other.