公开(公告)号：US20170122306A1

公开(公告)日：2017-05-04

申请号：US15335800

申请日：2016-10-27

Applicant: LG ELECTRONICS INC.

Inventor： Jongyoon CHOI ,  Sungjin LIM ,  Nayi RYU ,  Chaehong LIM ,  Seunggeun BAEK ,  Hyeongseok KIM

IPC: F04B49/12 ,  F04B53/12 ,  F04B53/16 ,  F04B35/04 ,  F04B49/06

CPC classification number: F04B49/12 ,  F04B35/04 ,  F04B35/045 ,  F04B39/0027 ,  F04B39/126 ,  F04B49/065 ,  F04B49/14 ,  F04B53/12 ,  F04B53/162 ,  F04B2203/0401 ,  F04B2203/0402

Abstract: A linear compressor and a method for controlling a compressor are provided. The compressor may include a piston that reciprocates within a cylinder, a linear motor that supplies a driving force to the piston, a discharge device through which a refrigerant compressed in the cylinder by the reciprocating motion of the piston is discharged, a pressure changing device that changes a variation rate of pressure applied to the piston before the piston reaches a virtual discharge surface (VDS) during the reciprocating motion, to prevent collision between the piston and the discharge device. The virtual discharge surface may be formed on at least a portion of the discharge device facing a compression space within the cylinder.