PISTON A piston of an internal combustion engine is in the form of an inverted bucket shape and it is free to slide in the cylinder barrel. The gas tightness is secured by means of flexible piston rings, which are in the grooves of the piston. These grooves are cut in the upper part of the piston.
A piston of an internal combustion engine serves three functions:
1. It forms a moveable wall of the combustion chamber.
2. It transmits...
