Flexibler Pleuel

The engine has a piston rod (1), which is connectable with a crank shaft at a piston rod head (2), and connectable with a piston at a piston rod lug (3) opposite to the head. Supporting carriers (6, 7) are attached to the head and the lug. The carriers extend axially along a centre axis (X) to each other, and variably spaced with their strikings (8, 9) to each other, so that a gap (11) is formed, which is bridged by a force storage unit (12).