Patent ID: 7328579

Claim:
A rotary piston heat engine system ( 100 ) composed of two units (I, II) each comprising two pistons ( 1 , 2 ) mounted for movement in opposite directions, the pistons being each mounted for rotation in a cylinder ( 3 , 3 ′), wherein the longitudinal axes ( 4 , 4 ′) of the pistons ( 2 , 2 ′) and cylinder ( 3 , 3 ′) are collinear, and the pistons ( 1 , 2 ) are mounted for movement in opposite directions, and a plurality of effective cylinder displacements ( 8 , 9 , 11 , 12 ) is formed in each case between two radial boundary surfaces ( 10 , 20 ) of the two respective pistons ( 1 , 2 ), which execute an angular motion relative to each other when the engine ( 100 ) is operating, and at least one mechanism ( 110 ) is provided that superimposes a circular motion on the angular motion of the two pistons ( 1 , 2 ), and each unit comprises a shaft ( 6 , 6 ′) for driving a torque-producing device ( 5 , 5 ′, 5 ″), and heating means, heat storage means and cooling means connected to a pipe system are provided, by means of which the inlet ports ( 130 , 130 ′; 131 , 131 ′) and outlet ports ( 140 , 140 ′; 141 , 141 ′) of the displacements of the cylinders ( 3 , 3 ′) of the units (I, II) are connected to each other, wherein a discretely-adjustable compensating device is provided that balances the positions of the respective pistons in the two units (I, II) in the event of a possible phase shift in the synchronization of the two units (I, II), in order to effect an optimal phase response, said compensating device ( 120 ) being in the form of a toothed belt disposed around the shaft of the two units (I, II) embodied as torque-producing devices ( 5 ′, 5 ″), which belt is mounted for displacement by one or more teeth to effect compensation.