公开(公告)号：US09829013B2

公开(公告)日：2017-11-28

申请号：US14776367

申请日：2014-03-13

Applicant: DOOSAN INFRACORE CO., LTD.

Inventor： Yong Lak Cho ,  Dal Sik Jang ,  Woo Yong Jung ,  Min Ha An ,  A Reum Seo ,  Sang Woo Lee ,  Yoon Seok Jang

IPC: F15B1/02 ,  F15B1/027 ,  E02F9/22 ,  F15B11/17 ,  F15B1/04 ,  F15B11/10 ,  F15B13/02 ,  F15B13/04

CPC classification number: F15B1/027 ,  E02F9/2217 ,  E02F9/2267 ,  E02F9/2289 ,  E02F9/2292 ,  E02F9/2296 ,  F15B1/04 ,  F15B11/10 ,  F15B11/17 ,  F15B13/027 ,  F15B13/04 ,  F15B2201/4155 ,  F15B2201/51 ,  F15B2211/20561 ,  F15B2211/20576 ,  F15B2211/212 ,  F15B2211/27 ,  F15B2211/40 ,  F15B2211/7053 ,  F15B2211/785

Abstract: The present disclosure relates to a hydraulic system for a construction machine, and more particularly, to a hydraulic system for a construction machine including a plurality of actuators, in which each of the actuators includes a pump/motor, is operated under a control of a corresponding pump/motor, and stores working oil in an accumulator or receives the working oil supplemented from the accumulator in accordance with a difference between a flow rate entering the actuator and a flow rate discharged from the actuator.