Experimental study of the influence of oil-mixtures and engine components inversion on wear rate of i.c engines

الملخص EN

The operational life and reliability of I.C.

engines are limited to certain extent by the breakdown of the engine components due to wear.

It is advantageous to know the condition of an engine and its components without disassembling for detail measurements.

This work describes the possibility of employing wear rate analysis of engine components (cylinder bore, piston rings and crankshaft-journal bearing) due to oil-mixtures (gasoline, water and carbon) by changing the rubbing engine components surfaces due to inversing the cylinder liner and crank-shaft bearing.

It is concluded that those mixtures play a significant role in assessing the wear rate of engine components.

Also the results have shown that the wear rate of some engine components can be reduced to more than 50% depending on oil mixture, if the cylinder liner and the crankshaft-bearing are inversed.

(i.e T.D.C and B.D.C are reversed).This was down by modification the cylinder liner to ease inversion of cylinder liner (i,e upper half become the lower and vice versa).