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Valve Plate Structural Optimal Design and Flow Field Analysis for the Aviation Bidirectional Three-Port Piston Pump

Author

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  • Xiangyang Li

    (School of Mechanical and Electrical Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China
    Hydraulic Technology Research Institute, Xi’an Aeronautical Institute, Xi’an 710077, China)

  • Yiting Xi

    (School of Mechanical and Electrical Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China)

  • Dunhui Xiao

    (ZCCE, Faculty of Science and Engineering, Swansea University, Swansea SA1 8EN, UK)

  • Jiaxin Tao

    (Hydraulic Technology Research Institute, Xi’an Aeronautical Institute, Xi’an 710077, China)

Abstract

This paper designed and optimized a bidirectional three-port valve plate structure for solving the matching problem of flow rate and pressure in the aerospace pump-controlled differential hydraulic cylinder. This design aims to make the valve plate work well under the bidirectional high-speed condition. The model was set up using dynamic mesh and sliding mesh, and the simulation is conducted by FLUENT. In addition, the flow field of inlet and outlet flow rate pulsations, pressure pulsation in cylinder, and non-dead-point transition zone of four cases are analyzed to optimize the valve plate in this work. The numerical results show that different angles of non-dead-point transition zones of the valve plate have a big impact on the performance of the piston pump. For example, the flow rate pulsation reaches the minimum when the angle of non-dead point transition zone is greater than or equal to the angle of a cylinder port. However, at this time, the closed compression would occur and the pressure inside the cylinder would rise rapidly as the piston moves to the non-dead point zone, thus resulting in serious pressure overshoot. In addition, if the angle of non-dead point transition zone is reduced within a certain range, the pressure overshoot will be reduced drastically, and the flow pulsation rate will rise a bit. The study suggests that it is necessary to adjust the angle of non-dead point transition zone to balance the pressure overshoot and flow pulsation of the pump to obtain the optimal kidney structure of the valve plate.

Suggested Citation

  • Xiangyang Li & Yiting Xi & Dunhui Xiao & Jiaxin Tao, 2021. "Valve Plate Structural Optimal Design and Flow Field Analysis for the Aviation Bidirectional Three-Port Piston Pump," Energies, MDPI, vol. 14(11), pages 1-14, June.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:11:p:3246-:d:567365
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    References listed on IDEAS

    as
    1. Quan, Zhongyi & Quan, Long & Zhang, Jinman, 2014. "Review of energy efficient direct pump controlled cylinder electro-hydraulic technology," Renewable and Sustainable Energy Reviews, Elsevier, vol. 35(C), pages 336-346.
    2. Søren Ketelsen & Damiano Padovani & Torben O. Andersen & Morten Kjeld Ebbesen & Lasse Schmidt, 2019. "Classification and Review of Pump-Controlled Differential Cylinder Drives," Energies, MDPI, vol. 12(7), pages 1-27, April.
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