Antunes 0600112

SPRING-PISTON

A piston is a component part of reciprocating motors, reciprocating pumps, gas compressors and pneumatic cylinders, among other similar mechanisms which are widely used in restaurant equipment. The piston is the moving component that is within a cylinder and is sealed by piston rings (o-rings, gaskets, etc.). The piston within the pump compresses and ejects a gas or liquid.

A spring is an elastic object that stores mechanical energy. Springs are typically made of spring steel. There are many spring designs. In everyday use, the term often refers to coil springs. When a conventional spring, without stiffness variability features, is compressed or stretched from its resting position, it exerts an opposing force approximately proportional to its change in length.