Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Numerical Simulation in the IC Engine Lubricating Gerotor Oil Pump

엔진 윤활용 제로터 오일펌프 유동해석

  • Published : 2006.10.01
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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.

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References

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  3. Performance improvement of an oil pump: Design of port assembled with gerotor (2-ellipses-combined lobe) vol.17, pp.8, 2016, https://doi.org/10.1007/s12541-016-0124-7
  4. Design and Analysis of Gerotor with Generalized Shapes for Power-Steering Units vol.34, pp.7, 2010, https://doi.org/10.3795/KSME-A.2010.34.7.891