Available Papers

A library of technical papers has been assembled to help the client learn more on how RINGPAK has been used in real life applications throughout many different industries.  Many of the papers provided contain data from experiments along with corresponding simulation results for the purpose of establishing and validating the capabilities of the programs.

  • Predicted Effects of Cylinder Kit Wear on Blowby and Oil Consumption for Two Diesel Engines, click here
  • Predicted and Measured Ring Pack performance of a Diesel Engine, click here
  • Lube Oil Consumption Analysis of DI Engine Using Ricardo RINGPAK Software, click here

Here are just some of the other RINGPAK papers which are available through SAE and other journals:

  • Carden, P., Pisani, C., Emannuel, L., Field, I., Devine, M., Schoeni, A., and Beyer, P., “Calculation of crank train friction in a heavy duty truck engine and comparison with measured data,” Proc IMechE Part J:J Engineering Tribology 227(2) 168–184

  • Experimental and Numerical Investigation of Inter-Ring Gas Pressures and Blowby in Diesel Engine (SAE Paper No. 930792, 1993)
  • A Mixed Lubrication and Oil Transport Model for Piston Rings Using a Mass Conserving Algorithm, ASME Journal of Engineering for Gas Turbines and Power, Vol. 120, 1998, pp. 199-208
  • Analysis of Lubrication, Friction, Blow-by and Oil Consumption in a Piston Ring Pack, ASME-ICEF 1997 Spring Conference
  • Analysis of Tribological Performance of a Piston Ring Pack, STLE/ASME International Tribology Conference, October 1999, Pre-print No. 99-TC-5
  • An Integrated Model of Ring Pack Performance, ASME Journal of Engineering for Gas Turbines and Power, Vol. 113, 1991, pp. 382-389
  • Effect of Piston Secondary Motion on the Numerical Modeling of the Piston Ring Pack Performance, ICE-Vol.35-3, Paper#2000-342, ASME Fall Conference, 2000
  • Numerical Investigation of the Effects of Axial Cylinder Bore Profiles on Piston Ring Radial Dynamics, ASME Journal of Engineering for Gas Turbines and Power, Vol. 125, 2003, pp. 1081-1089
  • A Model for Evaporative Consumption of Lubricating Oil in Reciprocating Engines (SAE Paper No. 922202, 1992)
  • Numerical Evaluation of the Potential for Fuel Economy Improvement due to Boundary Friction Reduction within Heavy-Duty Diesel Engines, Tribology International, Vol. 38, Issue 3, March 2005, pp. 265-275.
  • Piston Assembly Friction Losses - Comparison of Measured and Predicted Data (SAE 2006-01-0426)
  • A Lubrication and Oil Transport Model for Piston Rings Using a Navier-Stokes Equation with Surface Tension(SAE 2007-01-1053)

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