Classification and Review of Pump-Controlled Differential Cylinder Drives

Søren Ketelsen, Damiano Padovani, Torben Ole Andersen, Morten Kjeld Ebbesen, Lasse Schmidt

Research output: Contribution to journalReview articleResearchpeer-review

2 Citations (Scopus)
55 Downloads (Pure)

Abstract

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.
Original languageEnglish
Article number1293
JournalEnergies
Volume12
Issue number7
Number of pages27
ISSN1996-1073
DOIs
Publication statusPublished - 4 Apr 2019

Fingerprint

Pump
Hydraulic System
Hydraulics
Pumps
Literature Review
Oil tanks
Mechanical drives
Variable speed drives
Energy Efficiency
Compactness
Layout
Energy efficiency
Review
Predict
Alternatives
Requirements
Networks (circuits)
Concepts
Class

Keywords

  • Pump-controlled cylinder drives
  • Direct-driven hydraulics
  • Throttleless hydraulics
  • Valveless hydraulic drive
  • Linear hydraulic actuation

Cite this

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abstract = "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.",
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Classification and Review of Pump-Controlled Differential Cylinder Drives. / Ketelsen, Søren; Padovani, Damiano; Andersen, Torben Ole; Ebbesen, Morten Kjeld; Schmidt, Lasse.

In: Energies, Vol. 12, No. 7, 1293, 04.04.2019.

Research output: Contribution to journalReview articleResearchpeer-review

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AU - Ketelsen, Søren

AU - Padovani, Damiano

AU - Andersen, Torben Ole

AU - Ebbesen, Morten Kjeld

AU - Schmidt, Lasse

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