Energy recovery and utilization system of excavator boom based on flow regeneration and balance theory

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To meet the tighter emission standard of the diesel engine and save energy, various energy recovery and utilization systems (ERUSs) of excavator boom began to be applied. In this paper, a new ERUS of excavator boom was proposed and designed for a 20-ton traditional excavator (TE) based on flow regeneration and balance theory. In the new ERUS, partial potential energy of excavator boom can be utilized directly, and other partial potential energy of excavator boom is accumulated and released within only one hydraulic–hydraulic circuit. When the models of working device and working device with the new ERUS were built and simulated by AMEsim software based on proportion integration differentiation control strategy and the typical working cycle of TE, it can been seen that the new ERUS can meet the working requirement. Calculating and analyzing the influences of main parameters on the energy saving efficiency of the new ERUS, the optimal parameters are achieved. Then, the performance of new ERUS with optimal parameters is analyzed, some conclusion achieved that the potential energy utilization rates of boom is 20.1%, 24.9 L oil is regenerated, and 37.8 L oil and 41.6% energy are saved.

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This research was supported by Shandong Province Key Laboratory of Mine Mechanical Engineering (Grant No. 2019KLMM204)and NSFC-Shanxi coal-based low carbon joint fund focused on supporting project (Grant No. U1510205).

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Correspondence to Jinxia Liu.

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Liu, J., Jiao, Z., Xian, F. et al. Energy recovery and utilization system of excavator boom based on flow regeneration and balance theory. J Braz. Soc. Mech. Sci. Eng. 42, 35 (2020) doi:10.1007/s40430-019-2124-x

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  • Excavator boom
  • Flow regeneration
  • Balance theory
  • Potential energy recovery and utilization