ENERGY REGENERATION DEVICE AND WORK MACHINE COMPRI

专利名称：ENERGY REGENERATION DEVICE AND WORK

MACHINE COMPRISING ENERGYREGENERATION DEVICE

发明人：SUGANO, Naoki,MAEKAWA, Satoshi申请号：EP17843409.8申请日：20170809公开号：EP3483457A1公开日：20190515

专利附图：

摘要：Provided are an energy regeneration device which can regenerate energy of aworking fluid discharged from an actuator while controlling a flow rate of the working

fluid, and a work machine including the foregoing device. The regeneration device (100)includes a boom cylinder (20), an inertial fluid container (102), an oil tank (110), an

accumulator (105), a low-pressure-side opening/closing device (103), and a high-pressure-side opening/closing device (104). A calculation unit (151) calculates a duty ratio foropening/closing the low-pressure-side opening/closing device (103) and the high-pressure-side opening/closing device (104) in accordance with a desired flow rate of aworking fluid discharged from the boom cylinder (20). A regeneration control unit (153)selects alternately the low-pressure-side opening/closing device (103) and the high-pressure-side opening/closing device (104) as a destination with which the inertial fluidcontainer (102) communicates in accordance with the calculated duty ratio, and supplies adischarged working fluid to an accumulator (105).

申请人：Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

地址：2-4, Wakinohama-Kaigandori 2-chome Chuo-ku Kobe-shi, Hyogo 651-8585 JP

国籍：JP

代理机构：TBK

更多信息请下载全文后查看