公开(公告)号：US20210095653A1

公开(公告)日：2021-04-01

申请号：US16929546

申请日：2020-07-15

Applicant: LG Electronics Inc.

Inventor： Geonwoo KIM ,  Junghae KIM ,  Jaeyong JANG ,  Donghan KANG ,  Jinwoong JUNG ,  Chulgi ROH

IPC: F04B35/04 ,  F04B39/12 ,  F04B39/02 ,  F04B39/00

Abstract: A linear compressor includes a compressor body configured to compress a refrigerant. The compressor body includes a cylinder, a discharge valve, a groove, a gas hole, and a flow restrictor. The cylinder receives a piston. The discharge valve is configured to open and close one side of the cylinder and define a compression space for the refrigerant together with the piston. The groove is defined in an outer circumferential surface of the cylinder and into which at least a portion of the refrigerant discharged through the discharge valve is introduced. The gas hole is defined in the groove to pass through the cylinder. The flow restrictor includes twisting wires made of different materials and is disposed to be wound around the groove.

公开(公告)号：US20240110556A1

公开(公告)日：2024-04-04

申请号：US18204815

申请日：2023-06-01

Applicant: LG Electronics Inc.

Inventor： Junghae KIM ,  Kyeongweon LEE ,  Jinwoong JUNG

IPC: F04B39/00

CPC classification number: F04B39/0061

Abstract: A linear compressor includes a cylinder, a piston axially reciprocating in the cylinder, a first muffler unit coupled to the piston, a back cover that is disposed at a rear of the piston and defines an opening at a radially central area, and a second muffler unit coupled to the opening. The first muffler unit includes an inner guide disposed in the piston and a first intake muffler disposed at a rear of the inner guide. The second muffler unit includes a second intake muffler that communicates with the first intake muffler and is coupled to the opening, and a muffler body surrounding the second intake muffler. An outer circumferential surface of the second intake muffler defines a first communication hole communicating an inside of the second intake muffler with a space between the second intake muffler and the muffler body.

公开(公告)号：US20240102459A1

公开(公告)日：2024-03-28

申请号：US18204495

申请日：2023-06-01

Applicant: LG Electronics Inc.

Inventor： Jinwoong JUNG ,  Sangeun BAE ,  Chulgi ROH

IPC: F04B39/00 ,  F04B39/02 ,  F04B39/10

CPC classification number: F04B39/0027 ,  F04B39/0276 ,  F04B39/10

Abstract: A linear compressor includes a frame, a cylinder disposed in the frame, a piston configured to axially reciprocate in the piston, a discharge valve disposed at a front of the piston, and a discharge cover assembly coupled to the frame and disposed at the front of the piston. The discharge cover assembly includes a discharge cover including an inner space, a first discharge plenum that is disposed in the inner space of the discharge cover and defines a first discharge space inside the first discharge plenum, and a second discharge plenum disposed between the first discharge plenum and the discharge cover. The second discharge plenum defines a second discharge space in fluid communication with the first discharge space and a third discharge space in fluid communication with the second discharge space between the first discharge plenum and the second discharge plenum.