公开(公告)号：US20230131102A1

公开(公告)日：2023-04-27

申请号：US17961672

申请日：2022-10-07

Applicant: LG ELECTRONICS INC.

Inventor： Sedong LEE ,  Seoungmin KANG ,  Joonhong PARK

IPC: F04C18/356 ,  F04C18/344 ,  F04C29/12

Abstract: A rotary compressor may include an outflow passage through which refrigerant flows out of a compression space. The outflow passage may include at least one first outflow guide portion disposed in a main bearing or a sub bearing, at least one second outflow guide portion formed through between both axial ends of a roller, and at least one third outflow guide portion disposed in a bearing opposite to the bearing with the at least one first outflow guide portion based on the roller, to communicate with the at least one first outflow guide portion through the at least one second outflow guide portion. This may minimize an amount of refrigerant remaining in the compression space, thereby enhancing compression efficiency. A pressure difference on a front of a vane may also be eliminated, which may suppress or prevent vane jumping, thereby reducing wear of the vane or cylinder. As the outflow passage is periodically opened, refrigerant leakage may be suppressed or prevented during a compression stroke, thereby preventing under-compression.

公开(公告)号：US20190024658A1

公开(公告)日：2019-01-24

申请号：US16038340

申请日：2018-07-18

Applicant: LG ELECTRONICS INC.

Inventor： Gukhyun CHO ,  Sedong LEE ,  Bumdong SA

IPC: F04C2/356 ,  F04C29/12 ,  F04C13/00 ,  F04C15/00

Abstract: A rotary compressor includes a cylinder with a vane slot and a suction port. A vane is slidably disposed in the vane slot. The suction port guides fluid to a compression chamber at one circumferential end of the vane slot. The suction port may be formed in a recessed manner in a radial direction such that at least an end of the suction port in contact with an inner circumferential surface of the cylinder forms a slot shape extending between opposite axial side surfaces of the cylinder. A circumferential length of the suction port is reduced from conventional suction ports as a result of the slot configuration, thereby advancing the compression start angle, and a partition wall portion between the suction port and the vane slot may have elasticity, thereby suppressing close contact between the vane and the vane slot.

公开(公告)号：US20200217203A1

公开(公告)日：2020-07-09

申请号：US16551101

申请日：2019-08-26

Applicant: LG ELECTRONICS INC.

Inventor： Sedong LEE ,  Bumdong SA ,  Seseok SEOL

IPC: F01C21/08 ,  F04C18/352 ,  F25B1/04

Abstract: A rotary compressor: a casing; a plurality of bearings provided in an internal space of the casing; at least one cylinder provided between the bearings to form a compression space and has a vane slot; a rolling piston accommodated in the compression space to perform an orbiting movement; at least one vane that is slidably inserted into the vane slot of the cylinder, the at least one vane configured to separate the compression space into a suction chamber and a discharge chamber; a discharge cover including a noise reducing space to accommodate refrigerant discharged from the compression space; and a bypass flow path that allows the noise reducing space of the discharge cover to be connected between a sidewall of the vane slot and a side of the vane facing the sidewall.

公开(公告)号：US20230228270A1

公开(公告)日：2023-07-20

申请号：US17989873

申请日：2022-11-18

Applicant: LG ELECTRONICS INC.

Inventor： Seseok SEOL ,  Jinung SHIN ,  Sedong LEE

IPC: F04C29/00 ,  F04C18/344

CPC classification number: F04C29/0078 ,  F04C18/344

Abstract: A rotary compressor is provided that may include a rotation preventing key between a roller and a rotary shaft, the roller being a separable-type roller assembled into the rotary shaft. The rotation preventing unit may constrain rotation of the roller and allow axial movement of the roller with respect to the rotary shaft. Thus, axial movement of the roller along the rotary shaft may be suppressed or prevented, and thus, friction loss and abrasion between the roller and a main bearing or between the roller or a sub bearing may be suppressed or prevented.

公开(公告)号：US20210222352A1

公开(公告)日：2021-07-22

申请号：US17122513

申请日：2020-12-15

Applicant: LG ELECTRONICS INC.

Inventor： Yoonsung CHOI ,  Cheolhwan KIM ,  Sedong LEE

IPC: D06F58/26 ,  D06F58/24 ,  D06F58/38 ,  D06F58/04 ,  D06F34/26

Abstract: A laundry treating apparatus may include a drum in which laundry is stored, an air flow passage through which air is circulated, and a heating duct configured to supply hot air to the drum. The air flow passage and heating duct may be configured to prevent or reduce or cooling or condensing of moisture in the circulated air. A steam compressor may be provided to compress some of the air flowing through the air flow passage.