AN INTEGRATED MODEL OF RING PACK PERFORMANCE

Date

1991-07-01

Author

KERIBAR, R
Dursunkaya, Zafer
FLEMMING, MF

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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This paper describes an integrated model developed for the detailed characterization and simulation of piston ring pack behavior in internal combustion engines and the prediction of ring pack performance. The model includes comprehensive and coupled treatments of (1) ring-liner hydrodynamic and boundary lubrication and friction; (2) ring axial, radial, and (toroidal) twist dynamics; (3) inter-ring gas dynamics and blowby. The physics of each of these highly inter-related phenomena are represented by submodels, which are intimately coupled to form a design-oriented predictive tool aimed at the calculation of ring film thicknesses, ring motions, land pressures, engine friction, and blowby. The paper also describes the results of a series of analytical studies investigating effects of engine speed and load and ring pack design parameters, on ring motions, film thicknesses, and inter-ring pressures, as well as ring friction and blowby.

Subject Keywords

Fuel Technology, Mechanical Engineering, Energy Engineering and Power Technology, Nuclear Energy and Engineering, Aerospace Engineering

URI

https://hdl.handle.net/11511/36790

Collections

Department of Mechanical Engineering, Article