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Investigation of the Internal Displacement Chamber Pressure of a Rotary Vane Pump

Author

Listed:
  • Timm Hieronymus

    (Robert Bosch Automotive Steering GmbH, Richard-Bullinger-Straße 77, 73527 Schwaebisch Gmuend, Germany)

  • Thomas Lobsinger

    (Robert Bosch Automotive Steering GmbH, Richard-Bullinger-Straße 77, 73527 Schwaebisch Gmuend, Germany)

  • Gunther Brenner

    (Institute of Applied Mechanics, Clausthal University of Technology, Adolph-Roemer-Straße 2A, 38678 Clausthal-Zellerfeld, Germany)

Abstract

Low noise emissions of vehicle components are today a quality feature in the automotive sector. In automatic transmissions in particular, the hydraulic pump often contributes significantly to noise, which motivates research to clarify the noise sources and transmission pathways in these components. The subject of the present investigation is the generation of noise by the inherently instationary flow in hydraulic pumps. In order to shed some light on these phenomena, a computational fluid dynamics (CFD) simulation model for flow investigations on rotary vane pumps was set up. In this work, first the influence of different simulation parameters on the numerical results is analyzed. Then the pressure in the internal displacement chambers of the pump is examined, as it can be assumed that this is the essential parameter for noise generation. Different operating conditions such as rotational speeds and delivery pressures are investigated. Furthermore, the simulation results are compared to pressure measurements for validation and are used to find optimization potentials.

Suggested Citation

  • Timm Hieronymus & Thomas Lobsinger & Gunther Brenner, 2020. "Investigation of the Internal Displacement Chamber Pressure of a Rotary Vane Pump," Energies, MDPI, vol. 13(13), pages 1-19, June.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:13:p:3341-:d:378629
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    References listed on IDEAS

    as
    1. Xinran Zhao & Andrea Vacca, 2019. "Theoretical Investigation into the Ripple Source of External Gear Pumps," Energies, MDPI, vol. 12(3), pages 1-26, February.
    2. Emma Frosina & Adolfo Senatore & Manuel Rigosi, 2017. "Study of a High-Pressure External Gear Pump with a Computational Fluid Dynamic Modeling Approach," Energies, MDPI, vol. 10(8), pages 1-20, July.
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    1. Timm Hieronymus & Thomas Lobsinger & Gunther Brenner, 2021. "A Combined CFD-FEM Approach to Predict Fluid-Borne Vibrations and Noise Radiation of a Rotary Vane Pump," Energies, MDPI, vol. 14(7), pages 1-23, March.
    2. Thomas Lobsinger & Timm Hieronymus & Hubert Schwarze & Gunther Brenner, 2021. "A CFD-Based Comparison of Different Positive Displacement Pumps for Application in Future Automatic Transmission Systems," Energies, MDPI, vol. 14(9), pages 1-24, April.

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