kolvstång
A kolvstång, often translated as piston rod, is a crucial component in many reciprocating mechanical systems. It serves as a connecting element between a piston and the mechanism that drives it or is driven by it. Typically, a kolvstång is a rigid bar or shaft. One end of the kolvstång is attached to the piston, which moves back and forth within a cylinder. The other end is connected to a connecting rod or crank mechanism, which converts the linear motion of the piston into rotational motion, or vice versa.
The primary function of a kolvstång is to transmit the force generated by the pressure acting on