Design, Development, and Demonstration of a High-Pressure, Overcenter, Variable-Displacement Hydraulic Motor 901794
This document presents and discusses the design, development, and demonstration of a 3,000 to 8,000 psi (207 to 552 bar) electronically controlled, overcenter, variable-displacement hydraulic motor (VDHM) in which output speed and position control are effected solely through wobbler position control. This approach contrasts with traditional systems that are normally controlled through a large servovalve which throttles flow across the motor control ports. By connecting the variable-displacement hydraulic motor (VDHM) motor directly to supply and return and controlling through wobbler modulation, the need for a large throttling servovalve with its associated flow losses is eliminated. This can result in significant improvement in peak flow consumption, overall efficiency, and package size.
Citation: Durtschi, W., Kandil, M., and Kilroy, D., "Design, Development, and Demonstration of a High-Pressure, Overcenter, Variable-Displacement Hydraulic Motor," SAE Technical Paper 901794, 1990, https://doi.org/10.4271/901794. Download Citation
William G. Durtschi, Magdy Kandil, Donald Kilroy
Sundstrand Rockford, IL
Aerospace Technology Conference and Exposition
SAE Transactions - Journal of Aerospace-V99-1