Decentralized Compact Hydraulic Supply


A decentralized, compact hydraulic supply using high-speed components

  Schematic diagram of the electro-hydraulic linear actuator Copyright: © MSE


Conventional drives on mobile work machines feature a centralized, hydraulic, compressed air supply with high throttle and line losses. The use of a decentralized, electro-hydraulic actuator could reduce these losses. Yet existing concepts for mobile applications to date still feature insufficient output density.

Research objectives

An electro-hydraulic linear actuator whose power density is increased using high-speed components is to be developed as part of a research project. A functional example of a compact excavator is to be developed for demonstration purposes and to provide evidence of functionality.

  • Conceptual development of a compact, electro-hydraulic linear actuator
  • Design and construction of a high-speed gear stage for speeds up to 30,000 rpm
  • Development of a cooling and sealing concept
  • Development of a flow-optimized, high-speed gear pump
  • Assembly and testing of a functional example of a compact excavator for demonstration purposes

Research and project partners

  • The Institute for Fluid Power Drives and Controls (IFAS) at RWTH Aachen University
  • Bauer Maschinen GmbH
  • Bucher Hydraulics GmbH
  • Claas Selbstfahrende Erntemaschinen GmbH
  • Danfoss Power Solutions GmbH & Co OHG
  • Eckerle Industrie Elektronik GmbH
  • Fluitronics GmbH
  • Hydac Technology GmbH
  • Komatsu Germany GmbH
  • Lasco Umformtechnik GmbH
  • Linde Hydraulics GmbH & Co. KG
  • Linde Material Handling GmbH
  • Sander Messtechnik GmbH
  • Volkmann Elektromaschinenbau GmbH
  • Volvo Construction Equipment Germany GmbH
  • Wacker Neuson Beteiligungs GmbH
  • Wilhelm Hoven Maschinenfabrik GmbH & Co.
  Federal Ministry of Economic Affairs and Climate Action Copyright: © bmwi

Promoted by

Federal Ministry of Economic Affairs and Climate Action


Project sponsor

Forschungskuratorium Maschinenbau e.V.

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