TY - JOUR
T1 - Classification and review of pump-controlled differential cylinder drives
AU - Ketelsen, Søren
AU - Padovani, Damiano
AU - Andersen, Torben O.
AU - Ebbesen, Morten Kjeld
AU - Schmidt, Lasse
N1 - Publisher Copyright:
© 2019 by the authors.
PY - 2019/4/4
Y1 - 2019/4/4
N2 - Pump-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.
AB - Pump-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.
KW - Direct-driven hydraulics
KW - Linear hydraulic actuation
KW - Pump-controlled cylinder drives
KW - Throttleless hydraulics
KW - Valveless hydraulic drive
UR - http://www.scopus.com/inward/record.url?scp=85065521380&partnerID=8YFLogxK
U2 - 10.3390/en12071293
DO - 10.3390/en12071293
M3 - 文献综述
AN - SCOPUS:85065521380
SN - 1996-1073
VL - 12
JO - Energies
JF - Energies
IS - 7
M1 - 1293
ER -
