Internal Force Analysis of a Variable Displacement Vane Pump

2012-01-0409

04/16/2012

Event
SAE 2012 World Congress & Exhibition
Authors Abstract
Content
The internal force of a variable displacement vane pump has been studied in detail with ten Computational Fluid Dynamics (CFD) cases with different pump speed and eccentricity. The internal moment increases considerably with faster pump speed, and at higher speeds, it can exceed the moment due to the spring force causing the slide to regulate at much lower pump discharge pressure. At low pump speeds, the effect of eccentricity is minimal. The maximum value of internal moment is expected to occur at high speeds and maximum eccentricity. There are two reasons for variation of internal moment with pump speed and eccentricity: (a) the variation of effective pressurized area of the slide changes with pump speed and (b) higher pressure in the blind ports at higher eccentricity. This study provides insight into pump forces during high-speed operation of vane pumps.
Meta TagsDetails
DOI
https://doi.org/10.4271/2012-01-0409
Pages
11
Citation
Sullivan, P., and Sehmby, M., "Internal Force Analysis of a Variable Displacement Vane Pump," SAE Technical Paper 2012-01-0409, 2012, https://doi.org/10.4271/2012-01-0409.
Additional Details
Publisher
Published
Apr 16, 2012
Product Code
2012-01-0409
Content Type
Technical Paper
Language
English