FOUR QUALITIES OF PISTON
1. It’s ability to convert the expansion pressure of the burning mixture into a force which is transmitted to the Crank shaft by the connection rod during the power stroke.
2. It’s ability to withstand the side thrust caused by the angularity of the Crank pin and connecting rod assembly.
3. Piston are not generally wear as rapidly as the cylinder bore
4. Lightness to reduce the weight of the reciprocating masses and so enable higher engine speeds.
5. Silent in operations.
6. Correctly formed skirt to give uniform bearing under working condition.
7. Good heat conductivity to reduce the risk of detonation in order to permit higher compression ratio.
8. Rigidity to withstand the higher pressure.
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