Patent ID: 8978381
Filing Date: 2015-03-17
Classification: F25B

Abstract:
1. A device for producing useful power by converting the internal energy of air that enters said device and flows through it into useful power that is greater than the kinetic energy per second of the airflow entering said device, said device comprising: a) a nozzle comprising: b) a fan or compressor powered by a source of energy to generate airflow into said nozzle; c) a rotor comprised of a hub to which a plurality of blades are attached designed to produce power out of airflow kinetic energy; d) a rotor shaft that rotates with said hub attached to said rotor hub, said rotor shaft adapted to transfer said rotor output power to a mechanism that generates said useful power; e) a heat exchanger installed at the nozzle throat, or near this throat, wherein fluid that flows in this heat exchanger provides heat to the air flowing within said nozzle; f) a heat exchanger installed in a space such that fluid that flows in this heat exchanger collects heat from the space and that heat is transferred to said nozzle throat heat exchanger; wherein: