Research on Cylinder Bore, Piston, Piston Ring Lubrication in Internal Combustion Engines : Part II. On Piston Ring Jamping in its Groove

Three-Dimensional Model of Lubrication and Dynamics for The Piston Ring-Pack in Internal Combustion Engines

Effect of time-dependent piston velocity program on vortex ring formation in a piston/cylinder arrangement

An analytical model describing laminar vortex ring formation in a nozzle flow generator piston/ cylinder arrangement proposed previously by the authors is extended to time-dependent velocity programs. The predictions of the model are in good agreement with the available numerical data for impulsive, linear, and trapezoidal velocity programs. We also show that properly scaled vortex circulation ...

Crankshaft Offset and it’s Impact on Piston and Piston Ring Friction Behavior

Increasing fuel economy in modern passenger car engines has become one of the primary development targets, due to swiftly increasing raw oil prices. Initially, vast progress was achieved in the development of the combustion process. Computer Aided Engineering (CAE) has been one of the keys to success; however, further potential is now being investigated. Currently, the primary focus of engine d...

Comparison of Mathematical and Experimental Simulation of Lubrication Conditions in the System Of Piston, Piston Ring and Liner

Effects of Surface Irregularities on Piston Ring- Cylinder Tribo Pair of a Two Stroke Motor Engine in Hydrodynamic Lubrication

Tribological parameters such as friction, lubrication and wear influence strongly the engine component's life. In this study, a piston ring-cylinder system simulated taking into account the surface modifications under fully flooded lubrication and normal engine conditions. The hydrodynamic pressure field solved based on the Navier Stokes equations by Fluid Structure Interaction analysis. A real...