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Hybrid drive for an aircraft

  • US 8,640,439 B2
  • Filed: 11/29/2007
  • Issued: 02/04/2014
  • Est. Priority Date: 11/29/2006
  • Status: Expired due to Fees
First Claim
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1. A method for driving an aircraft comprising:

  • generating a first drive energy using a gas turbine apparatus;

    generating a second drive energy using an electric motor;

    generating injection water and electrical energy by a fuel-cell system by using a hydrogen-containing fuel and an oxidant;

    providing the injection water to a condenser;

    providing the electrical energy to the electric motor;

    injecting the injection water from the condenser into a combustion process in a combustion chamber of the gas turbine apparatus;

    providing at least one of the first drive energy and the second drive energy to a drive unit via a first drive shaft of one of the gas turbine apparatus and the electric motor selectively coupled to the drive unit;

    selectively providing the other of the first drive energy and the second drive energy via a second drive shaft of the other of the gas turbine apparatus and the electric motor selectively coupled to the first drive shaft via a first clutch apparatus; and

    generating propulsion using the drive unit.

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