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Numerical and Experimental Investigation of the Effect of Low Viscous Oil on Oil Pump Performance to meet BS IV regulations
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 2016 by SAE International in United States
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The main challenge in today's modern engines is to design the parts, which should withstand higher temperatures. To achieve this, selection of materials and process tolerances are very important factors. The product identified in this study is a conventional oil pump, which is an engine auxiliary component. The function of the oil pump is to supply oil to different parts of the engine to lubricate and reduce the overall engine friction. The different speed and load conditions for which the engine is subjected, pose a challenge to the oil pump, to supply the necessary quantity of oil at the required pressure and temperature. Normally, the oil pump is subjected to a temperature of 120°C at higher speeds. However, the peak oil temperature in modern diesel engines can be as high as 140°C to 150°C for a short period of time.
For this study, two engine grade oils were selected. Numerical analysis was performed to predict the oil flow rate for these oil grades. In addition to this, numerical analysis was performed for optimization of oil pump clearances. Numerical results were validated with experiments with an accuracy of approximately 5%. Proto samples were made with this optimized clearance and tested along with existing clearances under steady state conditions. Engine test was also carried out to measure the oil pressure. The results show that by lowering the oil viscosity (SAE 0W20), the oil flow rate and pressure were reduced. By reducing the clearances in the rotor, the oil flow rate was matched with higher viscosity oil (SAE 5W30). The oil pressure was also increased by approximately 10% as compared with higher viscosity oil, which is favourable in reducing the priming time at cold start conditions. The power consumed at maximum power point was reduced by approximately 5%.
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CitationSureshkumar, J., Vijayakumar, K., and Elayaraja, R., "Numerical and Experimental Investigation of the Effect of Low Viscous Oil on Oil Pump Performance to meet BS IV regulations," SAE Technical Paper 2016-28-0118, 2016, https://doi.org/10.4271/2016-28-0118.
- Haas , A. , Esch , T. , Fahl , E. , Kreuter , P. et al. Optimized Design of the Lubrication System of Modern Combustion Engines SAE Technical Paper 912407 1991 10.4271/912407
- Manco , S. , Nervegna , N. , and Rundo , M. Variable Flow Internal Gear Pump ASME IMECE2001/FPST New York
- Mancò , S. , Nervegna , N. , Rundo , M. , Armenio , G. et al. Gerotor Lubricating Oil Pump for IC Engines SAE Technical Paper 982689 1998 10.4271/982689
- Fabiani , M. , Mancò , S. , Nervegna , N. , Rundo , M. et al. Modelling and Simulation of Gerotor Gearing in Lubricating Oil Pumps SAE Technical Paper 1999-01-0626 1999 10.4271/1999-01-0626
- Mancò , S. , Nervegna , N. , and Rundo , M. Effects of Timing and Odd/Even Number of Teeth on Noise Generation of Gerotor Lubricating Pumps for IC Engines SAE Technical Paper 2000-01-2630 2000 10.4271/2000-01-2630
- Iudicello , F. , and Mitchell , D. CFD modeling of the flow in a Gerotor pump PTMC 2002
- Elayaraja , R. , Lingeswaramurthy , P. , and Govindarajan , S. PERFORMANCE OF GEROTOR OIL PUMP FOR AN AUTOMOTIVE ENGINE - PREDICTION USING CFD ANALYSIS AND EXPERIMENTAL VALIDATION SAE Technical Paper 2009-28-0007 2009 10.4271/2009-28-0007
- Loganathan , S. , Sivanantham , R. , and kumar , J. Investigations on Reduction of Power Consumption of Oil Pump for New Advanced Multijet Diesel Engine SAE Technical Paper 2009-01-1463 2009 10.4271/2009-01-1463
- Sivanantham , R. and Sureshkumar , J. Performance Improvement of Oil Pump of a Passenger Car Diesel Engine to Enable Use of Low Viscous Oil and Operate at High Thermal Levels SAE Technical Paper 2010-01-1102 2010 10.4271/2010-01-1102
- Versteeg , K and Malalasekara W. An Introduction to Computational Fluid Dynamics -The Finite Volume Method Longman Group Ltd. 1995
- Computational Dynamics Limited STAR CD+ v 4.10 User and Methodology Manuals 2010