The objectives of this research are to investigate the principal advantages of using various valve-plate slot geometries within an axial piston pump. In particular, three types of geometries are considered: a constant area slot geometry, a linearly varying slot geometry, and a quadratically varying slot geometry. By analyzing the pressure transients that are associated with each design at low pump displacements, it is shown that the magnitude of the pressure transition itself and the maximum pressure time rate-of-change may be specified for each design. In conclusion, it is shown that the constant area slot design exhibits the principal advantage of minimizing the required discharge area of the slot, the linearly varying slot design exhibits the principal advantage of utilizing the shortest slot length, while the quadratically varying slot design exhibits no principal advantage over either of the other two designs. The results of this research suggest that the use of quadratically varying slot geometry is not justified since it offers no obvious performance improvement.
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March 2003
Technical Briefs
Valve-Plate Design for an Axial Piston Pump Operating at Low Displacements
Noah D. Manring
Noah D. Manring
Mechanical and Aerospace Engineering Department, University of Missouri—Columbia, Columbia, MO 65211
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Noah D. Manring
Mechanical and Aerospace Engineering Department, University of Missouri—Columbia, Columbia, MO 65211
Contributed by the Mechanisms and Robotics Committee for publication in the JOURNAL OF MECHANICAL DESIGN. Manuscript received Aug. 2001; rev. April 2002. Associate Editor: M. Raghavan.
J. Mech. Des. Mar 2003, 125(1): 200-205 (6 pages)
Published Online: March 21, 2003
Article history
Received:
August 1, 2001
Revised:
April 1, 2002
Online:
March 21, 2003
Citation
Manring , N. D. (March 21, 2003). "Valve-Plate Design for an Axial Piston Pump Operating at Low Displacements ." ASME. J. Mech. Des. March 2003; 125(1): 200–205. https://doi.org/10.1115/1.1541632
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