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

1
Robert Bosch Automotive Steering GmbH, Richard-Bullinger-Straße 77, 73527 Schwaebisch Gmuend, Germany
2
Institute of Applied Mechanics, Clausthal University of Technology, Adolph-Roemer-Straße 2A, 38678 Clausthal-Zellerfeld, Germany
*
Author to whom correspondence should be addressed.
Energies 2020, 13(13), 3341; https://doi.org/10.3390/en13133341
Received: 25 May 2020 / Revised: 24 June 2020 / Accepted: 29 June 2020 / Published: 30 June 2020
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. View Full-Text
Keywords: positive displacement pump; rotary vane pump; CFD; displacement chamber pressure positive displacement pump; rotary vane pump; CFD; displacement chamber pressure
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Hieronymus, T.; Lobsinger, T.; Brenner, G. Investigation of the Internal Displacement Chamber Pressure of a Rotary Vane Pump. Energies 2020, 13, 3341.

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