Re-circulating heat pump turbine

An air-steam engine comprising:

• a gas turbine comprising:
• a first air-steam intake;
• a first air-steam discharge;
• a power output shaft, said power output shaft providing rotation power output generated from a change in entropy of steam;
• a power turbine having a second air-steam intake in fluid communication with the first air-steam discharge and further comprising:
• a turbocharger in operational communication with an electric DC motor;
• a compressor mechanically driven by the turbocharger;
• and
• a second air-steam discharge in fluid communication with the first air-steam intake;
• a water injection system in selective and controlled fluid communication with the first air-steam intake;
• a drive motor operatively coupled to and driven by said air turbine;
• a DC generator operatively coupled to and driven by power output shaft, wherein during operation steam is communicated in a unidirectional circuit through and between the gas turbine and the compressor;
• and
• a first valve for regulating flow of liquid from the water injection system to the unidirectional circuit;
• and
• a second valve for regulating flow of steam and entrained fluids to said first steam intake.