Power converter according to the principle of the hot-air engine

Abstract

The publication relates to a power converter according to the principle of the hot-air engine (Stirling engine), comprising a cylinder containing a main piston (4) and a displacement piston (3), each of which can be moved forward and backward on the axis of the cylinder and each of which possesses a piston rod assembly (20, 25) which is connected via connecting rods (17, 21) with a link system (21-24 or 17-19 resp.) to two parallel cranks (9) which rotate synchronously in opposite directions so that the displacement piston is moved phase-shifted to the main piston. The link system (21-24) of the main piston (4) comprises a frame element (24) which is rigidly connected to the latter's piston rod assembly (25) and has at least four journals (22,23) which are arranged symmetrically to the cylinder axis in a common plane perpendicular to the cylinder axis and which are oriented parallel to the crank shafts (9) and to each of which is linked a connecting rod (21). The link system (17-19) and/or the piston rod assembly (20) of the displacement piston (3) is/are passed through the frame element (24), and the cranks are constructed as crank shafts (9), on each of which the connecting rods (17, 21) act on a right angle bend (16, 14, 15) positioned between two, each, crank shaft bearings (11, 12). The right angle bends (14, or 16 and 15 resp.) of the crank shafts (9) which are connected to the link system (21-24) of the main piston (4) or which are respectively connected to the link system of the displacement piston (3) are off-set at angles to each other.

Dependencies are inferred from the claim text.