Combined Brayton and Stirling cycle power generator

A system comprising:

• a four-stage engine, wherein each stage is interconnected by a first hollow tubing and each stage comprises:
• a Brayton cycle engine that includes a compressor, a turbine, a hollow rotating shaft that extends between a first end and a second end, and a heat source;
• a thermoacoustic Stirling cycle engine disposed within the hollow rotating shaft between the first and second ends thereof, the Stirling cycle engine including a cold side heat exchanger disposed adjacent to the compressor, a hot side heat exchanger disposed adjacent to the turbine, and a regenerator disposed between the cold and hot side heat exchangers;
• a first power generator disposed within the first hollow tubing and located adjacent to the second end of the hollow rotating shaft;
• and,
• a second power generator disposed around the hollow rotating shaft between the first and second ends thereof.

A system comprising:

• a four-stage engine, wherein a first hollow tubing connects each stage, and each stage is arranged substantially 90 degrees apart from an adjacent stage, each stage comprising:
• a Brayton cycle engine that includes a compressor, a turbine, a hollow rotating shaft that extends between a first end and a second end, and a heat source;
• a thermoacoustic Stirling cycle engine disposed within the hollow rotating shaft between the first and second ends thereof, the Stirling cycle engine including a cold side heat exchanger disposed adjacent to the compressor, a hot side heat exchanger disposed adjacent to the turbine, and a regenerator disposed between the cold and hot side heat exchangers;
• a first power generator disposed within the first hollow tubing and located adjacent to the second end of the hollow rotating shaft;
• and,
• a second power generator disposed around the hollow rotating shaft between the first and second ends thereof;
• a four-stage intercooling level fluidically connected to and disposed under the four-stage engine, each stage comprising an intercooling acoustic heat exchanger being arranged 90 degrees apart from an intercooling acoustic heat exchanger of an adjacent stage, and each stage being interconnected by a second hollow tubing;
• a four-stage reheating level fluidically connected to and disposed above the four-stage engine, each stage comprising a reheating acoustic heat exchanger being arranged 90 degrees apart from a reheating acoustic heat exchanger of an adjacent stage, and each stage being connected by a third hollow tubing;
• and,
• a recuperator centrally located with respect to the four-stage engine, the four-stage intercooling level, and the four-stage reheating level.