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Device for recovering pressurized oil energy from a work machine
Provided is a device that is for recovering pressurized oil energy from a work machine and that can recover energy efficiently and secure operability comparable to standard construction machines without an increase in size in the device for recovering energy. The present invention is provided with: an interconnection tube for interconnecting the rod-side oil chamber side and bottom-side oil chamber side of a liquid pressure cylinder; an interconnection valve that is provided to the interconnection tube and that can adjust the pressure and/or flow rate of pressurized oil passing through the interconnection tube by adjusting the aperture thereof; a first pressure detection means that detects a pressure signal on the bottom-side oil chamber side of the liquid pressure cylinder; an operation quantity detection means that detects the operation quantity of an operation means; and a control device that acquires the pressure signal of the bottom-side oil chamber of the liquid pressure cylinder detected by the first pressure detection means and the operation quantity of the operation means detected by the operation quantity detection means, calculates the piston rod speed of the liquid pressure cylinder, and controls the interconnection valve in accordance with the piston rod speed.
Device for recovering pressurized oil energy from a work machine
Provided is a device that is for recovering pressurized oil energy from a work machine and that can recover energy efficiently and secure operability comparable to standard construction machines without an increase in size in the device for recovering energy. The present invention is provided with: an interconnection tube for interconnecting the rod-side oil chamber side and bottom-side oil chamber side of a liquid pressure cylinder; an interconnection valve that is provided to the interconnection tube and that can adjust the pressure and/or flow rate of pressurized oil passing through the interconnection tube by adjusting the aperture thereof; a first pressure detection means that detects a pressure signal on the bottom-side oil chamber side of the liquid pressure cylinder; an operation quantity detection means that detects the operation quantity of an operation means; and a control device that acquires the pressure signal of the bottom-side oil chamber of the liquid pressure cylinder detected by the first pressure detection means and the operation quantity of the operation means detected by the operation quantity detection means, calculates the piston rod speed of the liquid pressure cylinder, and controls the interconnection valve in accordance with the piston rod speed.
Device for recovering pressurized oil energy from a work machine
HIJIKATA SEIJI (Autor:in) / IMURA SHINYA (Autor:in) / NISHIKAWA SHINJI (Autor:in) / SATAKE HIDETOSHI (Autor:in)
16.09.2015
Patent
Elektronische Ressource
Englisch
DEVICE FOR RECOVERING PRESSURIZED OIL ENERGY FROM WORK MACHINE
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