What is the function of the piston skirt?

The piston skirt is the lower part of a piston that extends downward and serves several important functions. Primarily, it helps maintain proper alignment of the piston within the cylinder, reducing lateral movement and ensuring smooth operation. Additionally, the skirt aids in sealing the combustion chamber by providing a surface that can help contain combustion gases and minimize blow-by. It also contributes to heat dissipation from the piston to the cylinder walls.