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1. (WO2018037925) ENERGY REGENERATION DEVICE AND WORK MACHINE PROVIDED WITH ENERGY REGENERATION DEVICE

Pub. No.:    WO/2018/037925    International Application No.:    PCT/JP2017/029001
Publication Date: Fri Mar 02 00:59:59 CET 2018 International Filing Date: Thu Aug 10 01:59:59 CEST 2017
IPC: F15B 21/14
E02F 9/20
E02F 9/22
F15B 11/04
F15B 11/08
Applicants: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
株式会社神戸製鋼所
Inventors: SUGANO, Naoki
菅野 直紀
MAEKAWA, Satoshi
前川 智史
Title: ENERGY REGENERATION DEVICE AND WORK MACHINE PROVIDED WITH ENERGY REGENERATION DEVICE
Abstract:
Provided are: an energy regeneration device that can regenerate the energy of working fluid that is discharged from an actuator while controlling the flow rate of the working fluid; and a work machine that comprises the energy regeneration device. A regeneration device (100) that comprises: a boom cylinder (20); an inertial fluid container (102); an oil tank (110); an accumulator (105); a low-pressure side switch (103); and a high-pressure side switch (104). In accordance with a target flow rate for working oil discharged from the boom cylinder (20), a computation unit (151) computes an opening area for the low-pressure side switch (103) and the high-pressure side switch (104). A regeneration control unit (153) adjusts the opening area of the low-pressure side switch (103) and the high-pressure side switch (104), alternates a connecting end of the inertial fluid container (102) between the low-pressure side switch (103) and the high-pressure side switch (104), and supplies the discharged working oil to the accumulator (105).