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Turboprop-powered aircraft with thermal system

  • US 9,429,076 B2
  • Filed: 01/06/2012
  • Issued: 08/30/2016
  • Est. Priority Date: 01/11/2011
  • Status: Expired due to Fees
First Claim
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1. A turboprop-powered medium altitude long endurance aircraft, comprising:

  • a gas turbine engine configured for providing propulsion power to an aircraft propeller;

    a heat scavenging apparatus configured for scavenging heat from the gas turbine engine;

    a heating apparatus comprising a first heat exchanger;

    a recirculating air path;

    a further heat exchanger in the recirculating air path;

    whereinthe first heat exchanger is arranged to use the scavenged heat to heat air in the recirculating air path;

    the further heat exchanger comprises a heat-storage material having a melting point selected so as to be rendered solid when cooling and is arranged to cool air recirculating around the recirculation air path; and

    the recirculating air path is arranged to provide cooling and/or heating to the turboprop-powered medium altitude long endurance aircraft.

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