Monopropellant-Driven Free Piston Hydraulic Pump for Mobile Robotic Systems

Author:

McGee Timothy G.1,Raade Justin W.1,Kazerooni H.1

Affiliation:

1. Human Engineering and Robotics Laboratory, Department of Mechanical Engineering, University of California, Berkeley, Berkeley, CA 94720

Abstract

The authors present a novel power supply for mobile robotic systems. A monopropellant (e.g., hydrogen peroxide) decomposes into high temperature gases, which drive a free piston hydraulic pump (FPHP). The elimination of fuel/oxidizer mixing allows the design of simple, lightweight systems capable of operation in oxygen free environments. A thermodynamic analysis has been performed, and an experimental FPHP has been built and tested. The prototype successfully pumped hydraulic fluid, although the flow rate was limited by the off-the-shelf components used.

Publisher

ASME International

Subject

Computer Science Applications,Mechanical Engineering,Instrumentation,Information Systems,Control and Systems Engineering

Reference13 articles.

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2. Stokes, P. R., 1998, “Hydrogen Peroxide for Power and Propulsion,” Presented at the London Science Museum, http://www.ee.surrey.ac.uk/SSC/H2O2CONF/Pstokes.htm.

3. Dismukes, K. (curator), 2003, “Auxiliary Power Units,” NASA Human Spaceflight Website, http://spaceflight.nasa.gov/shuttle/reference/shutref/orbiter/apu/

4. Johnsen, E. G., and Corliss, and W. R., 1967, “Teleoperator and Human Augmentation,” AEC-NASA Technology Survey, NASA Document SP-5047.

5. Amendola, S. C., and Petillo, P. J., 2001, “Engine Cycle and Fuels for Same,” United States Patent #6,250,078 B1.

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