Classification and Review of Pump-Controlled Differential Cylinder Drives
AbstractPump-controlled hydraulic cylinder drives may offer improved energy efficiency, compactness, and plug-and-play installation compared to conventional valve-controlled hydraulic systems and thus have the potential of replacing conventional hydraulic systems as well as electro-mechanical alternatives. Since the late 1980s, research into how to configure the hydraulic circuit of pump-controlled cylinder drives has been ongoing, especially in terms of compensating the uneven flow requirements required by a differential cylinder. Recently, research has also focused on other aspects such as replacing a vented oil tank with a small-volume pressurized accumulator including the consequences of this in terms of thermal behavior. Numerous references describe the advantages and shortcomings of pump-controlled cylinder drives compared to conventional hydraulic systems or electro-mechanical drives. This paper presents a throughout literature review starting from the earliest concepts based on variable-displacement hydraulic pumps and vented reservoirs to newer concepts based on variable-speed electric drives and sealed reservoirs. By classifying these drives into several proposed classes it is found that the architectures considered in the literature reduce to a few basic layouts. Finally, the paper compares the advantages and shortcomings of each drive class and seek to predict future research tasks related to pump-controlled cylinder drives. View Full-Text
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Ketelsen, S.; Padovani, D.; Andersen, T.O.; Ebbesen, M.K.; Schmidt, L. Classification and Review of Pump-Controlled Differential Cylinder Drives. Energies 2019, 12, 1293.
Ketelsen S, Padovani D, Andersen TO, Ebbesen MK, Schmidt L. Classification and Review of Pump-Controlled Differential Cylinder Drives. Energies. 2019; 12(7):1293.Chicago/Turabian Style
Ketelsen, Søren; Padovani, Damiano; Andersen, Torben O.; Ebbesen, Morten K.; Schmidt, Lasse. 2019. "Classification and Review of Pump-Controlled Differential Cylinder Drives." Energies 12, no. 7: 1293.
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