A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
ENERGY REGENERATION DEVICE AND WORK MACHINE PROVIDED WITH SAME
Provided are an energy regeneration device capable of controlling flow of a working fluid discharged from an actuator while regenerating energy from 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 for opening/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 a hydraulic 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 fluid container (102) communicates in accordance with the calculated duty ratio, and supplies the discharged hydraulic fluid to an accumulator (105).
ENERGY REGENERATION DEVICE AND WORK MACHINE PROVIDED WITH SAME
Provided are an energy regeneration device capable of controlling flow of a working fluid discharged from an actuator while regenerating energy from 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 for opening/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 a hydraulic 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 fluid container (102) communicates in accordance with the calculated duty ratio, and supplies the discharged hydraulic fluid to an accumulator (105).
ENERGY REGENERATION DEVICE AND WORK MACHINE PROVIDED WITH SAME
ENERGIERÜCKGEWINNUNGSVORRICHTUNG UND DAMIT AUSGESTATTETE ARBEITSMASCHINE
DISPOSITIF DE RÉGÉNÉRATION D'ÉNERGIE ET ENGIN DE CHANTIER POURVU DE CELUI-CI
MAEKAWA SATOSHI (author) / SUGANO NAOKI (author)
2023-03-08
Patent
Electronic Resource
English
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