Abstract: A Stirling engine (10, 50, 72) comprising at least one working piston (52) and at least one displacement piston (4), wherein for a power control by means of the transmission of the linear movement of a drive part (2) into the linear movement of a driven part (8), a lever (5) articulately connected to the drive part and the driven part (2, 8) is provided, which lever has an associated displaceable pivot point (7), the bearing point of the lever (5) traveling on the pivot point (7) according to a curve during movement transmission.