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Design and theoretical analysis of a sliding valve distribution radial piston pump

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Abstract

A Sliding valve distribution radial piston pump (SVDRPP) is presented. In this pump, a new distribution method that uses sliding valves to distribute oil for the piston chambers is developed. With this design, the disadvantages brought by the distribution shaft and the check valves (traditional distribution mechanisms), such as the poor stress state of the shaft and the energy waste for opening the check valves, are expected to be eliminated. In addition, a method of using pressure oil to accomplish the returning stroke of the piston is also proposed, which could be used to replace the usage of springs along with their shortcomings. A pump with five pistons is designed as an example to elaborate the structure and the working principle of SVDRPP. Furthermore, the flow characteristics of SVDRPP are studied, and the formulas of the displacement, the average flow rate and the instantaneous flow rate are deduced.

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Authors and Affiliations

  1. School of Mechanical Engineering, Xi′an Jiaotong University, Xi′an, 710049, China

    Tong Guo, Shengdun Zhao & Yanghuiwen Yu

  2. Xi′an Engineering University of Armed Police Force, Xi′an, 710049, China

    Peng Shang

Authors
  1. Tong Guo
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  2. Shengdun Zhao
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  3. Yanghuiwen Yu
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  4. Peng Shang
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Corresponding author

Correspondence to Tong Guo.

Additional information

Guo Tong is currently a Ph.D. student at Xi′an Jiaotong University. His research interests include pump technology ad hydraulic transmission.

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Guo, T., Zhao, S., Yu, Y. et al. Design and theoretical analysis of a sliding valve distribution radial piston pump. J Mech Sci Technol 30, 327–335 (2016). https://doi.org/10.1007/s12206-015-1236-1

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  • DOI: https://doi.org/10.1007/s12206-015-1236-1

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