A device for compressing gas using thermal energy. In a subsonic embodiment the heat gas passes through a convergent pipe C1 where it is provided with operating velocity, a convergent pipe C2 where it is simultaneously maintained at high speed and cooled by evaporation of liquid sprayed by nozzles R...http://www.google.de/patents/US6935096?utm_source=gb-gplus-sharePatent US6935096 - Thermo-kinetic compressor
