Problems Related To Piston Rings

Problems Related To Piston Rings Points : problems related to piston rings, problems in internal combustion engines, ic, engine Piston rings seal the clearance between the outside of the piston and the cylinder wall. They must keep combustion pressure from entering the crankcase. They must also keep oil from entering the combustion chambers. The principal requirement of a piston ring is that when compressed into the cylinder it shall bear evenly a] round, and shall not have too large a gap.

In order to prevent the escape of gases past the rings it is necessary to arrange for the lane to exert a certain radial pressure outwards against the cylinder walls. This pressure must only be sufficient for the purpose during the normal working conditions for excessive pressures reduce engine power and also given rise to greater cylinder wear.