The Hydraulic Solution for the Evolution of Electric Drives
The variable-speed hydraulic pump, with its potential for energy savings, power density and temporary noise reduction, is currently the dominant pressure supply system in the media. It provides a clear example of how hydraulics can successfully participate in the evolution of electric drives.

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Dr.-Ing. Gerd Scheffel is industrial applications engineering manager for Parker in Kaarst, Germany. He holds a doctor’s degree in hydraulics at Aachen University. He started his career as hydraulics engineering manager at Towler Hydraulics which was acquired by Parker in 1984. He served as general manager from 1989 to 2012 of the Hydraulic Controls Division and managing director of Parker Germany from 1991 to 2014.
Dr.-Ing. Roland Bublitz is industrial applications engineering manager for Parker in Kaarst, Germany. He holds a diploma and a PhD in mechanical engineering both from the RWTH Aachen University in Germany. He began his career at Parker in 2003 and worked previously as research assistant at the Institute for Fluid Power Drives and Controls at RWTH Aachen University.