Patent ID: 8677730

Claim:
A low-temperature, continuous cold combustion, constant pressure, active chamber motor-compressor unit, comprising: a motor-compressor unit (B) configured to operate with compressed atmospheric air and comprised of i) an engine piston ( 1 ) slidable in an engine cylinder ( 2 ) to a top dead center position for a period of time, ii) a piston travel control device ( 3 ) that stops the piston at the top dead center position, iii) an active chamber cylinder ( 13 ) fitted with a pressure piston ( 14 ) that produces work during filling of the active chamber cylinder ( 13 ), iv) an expansion chamber ( 12 ) linking the engine cylinder ( 2 ) and the active chamber cylinder ( 13 ), the expansion chamber ( 12 ) having a variable volume, and an air compression device ( 28 , 25 , 26 , 33 ) that compresses atmospheric air supplied at a reduced temperature; a refrigerating system (A) that supplies the atmospheric air at the reduced temperature to an inlet ( 28 ) of the air compression device, the refrigerating system (A) being comprised of a cold chamber ( 29 ) that reduces a temperature of input atmospheric air from an ambient temperature to the reduced temperature; an external combustion device (C) comprised of an external combustion chamber ( 19 ) and a constant pressure heating device ( 19 A), an inlet of the combustion chamber ( 19 ) being connected to an outlet ( 33 ) of the air compression device to receive the compressed air as working compressed air, wherein the working compressed air is increased in volume within the combustion chamber by heat from the constant pressure heating device ( 19 a ); and an inlet duct ( 17 ) connecting an outlet of the combustion chamber to the expansion chamber ( 12 ), wherein, i) when the engine piston ( 1 ) is stopped at the top dead center position, the working compressed air is passed from the combustion chamber ( 19 ) and admitted to the expansion chamber ( 12 ) when the expansion chamber ( 12 ) has a smallest volume to thereby fill the active chamber cylinder ( 13 ) so that the pressure piston ( 14 ) produces the work during the filling of the active chamber cylinder ( 13 ), ii) under thrust of the admitted working compressed air, the expansion chamber ( 12 ) increases in volume and produces further work by the compressed air contained in the expansion chamber ( 12 ) expanding in the engine cylinder ( 2 ) thus pushing the engine piston ( 1 ) downwards to thereby supply the further work, and iii) during an upwards travel of the engine piston ( 1 ) during an exhaust stroke, the variable volume in the expansion chamber is returned to the smallest volume to restart a complete work cycle.