公开(公告)号：US20240110553A1

公开(公告)日：2024-04-04

申请号：US18202538

申请日：2023-05-26

Applicant: LG Electronics Inc.

Inventor： Sangjin SONG ,  Chulgi ROH ,  Geonwoo KIM

IPC: F04B39/00 ,  F04B37/00

CPC classification number: F04B39/0027 ,  F04B37/00

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 is in fluid communication with the first intake muffler and is coupled to the opening, and a muffler body surrounding the second intake muffler. The second intake muffler includes a coupling portion that is disposed at a rear of the second intake muffler and has a shape corresponding to the opening.

公开(公告)号：US20250012269A1

公开(公告)日：2025-01-09

申请号：US18888592

申请日：2024-09-18

Applicant: LG Electronics Inc.

Inventor： Sangjin SONG ,  Junghae KIM ,  Chulgi ROH

IPC: F04B53/14 ,  F04B53/16

Abstract: A linear compressor includes: a piston configured to reciprocate in an axial direction, and a cylinder that is provided on a radially outer side of the piston to accommodate the piston and that defines a compression space with the piston. The cylinder includes: a gas hole defined at the cylinder such that a first end of the gas hole is at an outer circumferential surface of the cylinder and a second end of the gas hole is at an inner circumferential surface of the cylinder, and a gas pocket that is in communication with the gas hole and that is recessed from the inner circumferential surface of the cylinder, where a length of the gas pocket in the axial direction of the cylinder is longer than a length of the gas pocket in a circumferential direction of the cylinder.