Decentralized Compact Hydraulic Supply
A decentralized, compact hydraulic supply using high-speed components
Motivation
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.
Promoted by
Federal Ministry of Economic Affairs and Climate Action
Project sponsor
Forschungskuratorium Maschinenbau e.V.