A numerical three-dimensional CFD analysis of a variable displacement vane pump has been conducted, investigating the effects on the pressure ripple caused by the vane detaching from the pressure ring. The volume of the fluid over the vane tip has been re-meshed at every time step as a function of the forces acting on the bottom and the top of each vane. The numerical model has been developed using the commercial tool, Simerics MP+, including turbulence and cavitation models. The validation of the model has been done comparing numerical and experimental data. It has been observed that the detachment of the vane occurs during the transition zones when unwanted pressure spikes are generated by a nonoptimized valve plate design. The prediction of vane detachment is crucial for designing a quieter and more durable pump. Vane collision on the stator ring can be a source of noise producing premature wear of both components. Vane detachment from the stator ring has a large effect on pressure ripple even if the volumetric efficiency is only slightly influenced.
|Original language||English (US)|
|Journal||E3S Web of Conferences|
|State||Published - Oct 22 2020|
|Event||75th National ATI Congress - #7 Clean Energy for all, ATI 2020 - Virtual, Online, Italy|
Duration: Sep 15 2020 → Sep 16 2020
Bibliographical noteFunding Information:
We appreciate the support from Michele Pavanetto and Alessandro Corrente of Duplomatic MS, from Raffaele Invrea and Travis Piehl of Continental Hydraulics Inc. and from Federico Monterosso and Micaela Olivetti of OMIQ s.r.l.
© 2020 The Authors, published by EDP Sciences.