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Patent Searching and Data


Title:
ENERGY REGENERATION DEVICE AND WORK MACHINE PROVIDED WITH ENERGY REGENERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/037925
Kind Code:
A1
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).

Inventors:
SUGANO, Naoki
MAEKAWA, Satoshi
Application Number:
JP2017/029001
Publication Date:
March 01, 2018
Filing Date:
August 09, 2017
Export Citation:
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Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.) (2-4 Wakinohama-Kaigandori 2-chome, Chuo-ku Kobe-sh, Hyogo 85, 〒6518585, JP)
International Classes:
F15B21/14; E02F9/20; E02F9/22; F15B11/04; F15B11/08
Foreign References:
JP2014163419A2014-09-08
JP2016148392A2016-08-18
JPS6034501A1985-02-22
Attorney, Agent or Firm:
KOTANI, Etsuji et al. (Osaka Nakanoshima Building 2nd Floor, 2-2 Nakanoshima 2-chome, Kita-ku, Osaka-sh, Osaka 05, 〒5300005, JP)
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