Ring wear may not be a problem in most current automotive engines. However, a small alteration in ring face geometry can significantly affect the hydrodynamic lubrication characteristics of the ring. This in turn can cause excessive frictional losses,...
Ring wear may not be a problem in most current automotive engines. However, a small alteration in ring face geometry can significantly affect the hydrodynamic lubrication characteristics of the ring. This in turn can cause excessive frictional losses, blowby and wear in an engine. As engines become more compact and highly loaded, ring wear is likely to be more severe than in current engines. In order to assess the effect of ring loading, an analytic model of piston ring wear is developed from the ring friction analysis.<br/>
This ring wear analysis clearly shows that the higher the engine speed, the lower the wear rates under the same power output. This finding is consistent with the limited experimental data available. The specific wear rates at steady state drawn from this analysis show good correspondence with the wear factor observed in published experimental studies.<br/>