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http://dx.doi.org/10.3795/KSME-B.2006.30.10.1019

Numerical Simulation in the IC Engine Lubricating Gerotor Oil Pump  

Jo Sok-Hyun (현대자동차)
Park Jae-In (현대자동차)
Nam Kyung-Woo (현대자동차)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.30, no.10, 2006 , pp. 1019-1025 More about this Journal
Abstract
Numerical simulations were conducted on the gerotor type oil pump. Three oil pump models having different port and groove shape were considered. Firstly, two original models (baseline & variant.1 model) were simulated in order to validate the accuracy of the simulation results and to better understand the flow characteristics in the pump. It was found that the cavitation phenomenon as well as the teeth tip leakage is most important parameter on the pump performance. Based on the simulation results of the original models, final model (variant.2 model) which has improved port shape and pressure relief valve is suggested to enhance pump performance and to reduce driving torque. The volumetric efficiency and the hydraulic torque of the Variant.2 model is improved 4% and reduced 6.1% each at 2000RPM in experiment.
Keywords
Gerotor; Oil Pump; Cavitation; CFD;
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  • Reference
1 Brennen, C. E., 1995, 'Cavitation and Bubble Dynamics,' Oxford Univertisy Press
2 Svedberg, G. C., Totten, G. E., Sun, Y. H. and Bishop, R. J. Jr., 1999, 'Hydraulic System Cavitation: Part II - A Review of Hardware Design-Related Effects,' SAE 1999-01-2857
3 Manco, S. and Nervegna, N., 2000, 'Effects of Timing ad Odd/Even Number of Teeth on Noise Generation of Gerotor Lubricating Pumps for IC Engines,' SAE 2000-01-2630
4 CFD-ACE manual
5 Singhal, A. K., Li, H. Y., Athavale, M. M. and Jiang, Y., 2001 'Mathematical Basis and Validation of the Full Cavitation Model,' Preceedings of ASME FEDSM
6 Athavale, M. M. and Singhal, A. K., 2001, 'Numerical Analysis of Cavitating Flows in Rocket Turbopump Elements,' AIAA-2001-3400
7 Athavale, M. M., Jiang, Y. and Singhal, A. K., 2000, 'Application of the Full Cavitation Model to Pumps and Inducers,' ISROMAC 2000
8 Totten, G. E. and Bishop, R. J. Jr., 1999, 'The Hydraulic Pump Inlet Condition: Ill!pact on Hydraulic Pump Cavitation Potential,' SAE 1999-01-1877
9 Yu Jiang and Chin-Yuan Pemg, 1997, 'An Efficient 3D Transient Computational Model for Vane Oil Pump and Gerotor Oil Pump Simulations,' SAE 970841