International Journal of Vehicle Structures and Systems

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Modelling of Cavitation and Aeration Effects on a Gerotor Pump of a Lubricating System in Automobiles


Affiliations
1 Dept of Mech Engg.,Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Bengaluru, India
 

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In an internal combustion engine, lubrication system acts as an auxiliary system, proper operation of it is essential for optimal performance of an engine. Mostly, positive displacement pumps are used for pumping the lubricating oil at constant flow rate at a given speed. In that, Gerotor pump is a commonly used pump. Cavitation affects the volumetric efficiency of the pump, which in turn influenced by operating conditions like speed of the pump, suction pressure etc. The current study using 3D pump flow simulation tool, Simerics-MP+ revealed that the cavitation bubbles form near the teeth of the rotors on the suction side. The location at which the bubbles expand, and collapse are correctly predicted at two different configurations and its effect on the performance is validated with the experimental data.

Keywords

Gerotor Pump, Cavitation, Vapour Mass Fraction, Total Gas Mass Fraction, Volumetric Efficiency.
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  • Simerics Inc., User Manual - Simerics-MP+.

  • M. Rundo and N. Nervegna. 2015. Lubrication pumps for internal combustion engines: A review, Int. J. Fluid Power, 16(2), 59-74. https://doi.org/10.1080/14399776.2015.1050935.

  • M. Rundo. 2017. Models for flow rate simulations in gear pumps a review, Energies, 10(9), 1-32. https://doi.org/10.3390/en10091261.

  • D. Buono, D.S. Di Cola, A. Senatose, E. Frosina, G. Buccilli and J. Harrison. 2016. Modelling approach on a Gerotor pump working in cavitation conditions, Proc. 71st Conf. Italian Machines Engg. Association, 101, 701709. https://doi.org/10.1016/j.egypro.2016.11.089.

  • D. Buono, D. Siano, E. Frosina and A. Senatose. 2017. Gerotor pump cavitation monitoring and fault diagnosis using vibration analysis through the employment of autoregressive-moving-average technique, Simulation Modelling Practice and Theory, 71, 61-82. http://dx.doi.org/10.1016/j.simpat.2016.11.005K.

  • M. Rundo, G. Altare and Massimo. 2015. CFD analysis of Gerotor lubricating pumps at high speed: geometric features influencing the filling capability, Proc. ASME/BATH Symp. Fluid Power & Motion Control, FPMC2015-9539. http://proceedings.asmedigitalcollection.asme.org.

  • H. Ding, Y. Jiang, F.C. Visser and M. Furmanczyk. 2009. Demonstration and validation of a 3DCFD simulation tool predicting pump performance and cavitation for industrial applications, Proc. ASME Fluids Engg. Division Summer Meeting, FEDSM2009-78256.

  • A.K. Singhal, M.M. Athavale, H. Li and Y. Jiang. 2002. Mathematical basis and validation of the full cavitations model, J. Fluids Engg., 124(3), 617-624. https://doi.org/10.1115/1.1486223.

  • S. Sooraj, V.C. Sekharan, R.S. Robson and S.B. Prakash. 2017. Super-cavitating flow around two-dimensiona l conical, spherical, disc and stepped disc cavitators, IOP Conf. Series: Materials Sci. and Engg., 225(1). https://doi.org/10.1088/1757-899X/225/1/012041.

  • P.L. Meyappan, A. Roy, J. Abhijith, M.N.V. Ramesh and P.K. Marimuthu. 2015. Tsunami wave impact on structures, Int. J. Applied Engg. Research, 10, 1135-1139.


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  • Modelling of Cavitation and Aeration Effects on a Gerotor Pump of a Lubricating System in Automobiles

Abstract Views: 226  |  PDF Views: 122

Authors

M. V. Raghunadh
Dept of Mech Engg.,Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Bengaluru, India
Sandeep Koundinya
Dept of Mech Engg.,Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Bengaluru, India

Abstract


In an internal combustion engine, lubrication system acts as an auxiliary system, proper operation of it is essential for optimal performance of an engine. Mostly, positive displacement pumps are used for pumping the lubricating oil at constant flow rate at a given speed. In that, Gerotor pump is a commonly used pump. Cavitation affects the volumetric efficiency of the pump, which in turn influenced by operating conditions like speed of the pump, suction pressure etc. The current study using 3D pump flow simulation tool, Simerics-MP+ revealed that the cavitation bubbles form near the teeth of the rotors on the suction side. The location at which the bubbles expand, and collapse are correctly predicted at two different configurations and its effect on the performance is validated with the experimental data.

Keywords


Gerotor Pump, Cavitation, Vapour Mass Fraction, Total Gas Mass Fraction, Volumetric Efficiency.

References





DOI: https://doi.org/10.4273/ijvss.10.5.10