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US 8,569,906 B2Granted
Energy supply system for supplying energy to aircraft systems
AssigneeAirbus Operations GmbH
InventorsRalf-Henning Stolte, Harald Gründel
Life of this patent
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Abstract
An energy supply system for an aircraft comprises at least one fuel cell and at least one energy storage device, wherein the fuel cell, of which there is at least one, is coupled to the energy storage device, of which there is at least one, such that the energy storage device can be charged by means of the fuel cell.
Claims11
An energy supply system for energy supply of at least one consumer in an aircraft, the energy supply system comprising:
- at least one fuel cell;
- at least one electrical energy storage device;
- and
- at least one gas turbine serving as an auxiliary power unit for providing electrical power to consumers in the aircraft,
- wherein the at least one fuel cell is coupled to the at least one electrical energy storage device such that the at least one electrical energy storage device can be charged by the fuel cell,
- wherein the at least one electrical energy storage device is arranged as a buffer storage device between the at least one fuel cell and the at least one consumer, and
- wherein the electrical energy storage device is configured to provide electrical power to the gas turbine in a start-up phase of the gas turbine.
4 more elements
A method comprising:
- using an energy supply system for energy supply of at least one consumer in an aircraft, the energy supply system comprising
- at least one fuel cell;
- at least one electrical energy storage device;
- at least one gas turbine serving as an auxiliary power unit for providing electrical power to consumers in the aircraft;
- wherein the at least one fuel cell is coupled to the at least one electrical energy storage device such that the at least one electrical energy storage device can be charged by the fuel cell, and
- wherein the at least one electrical energy storage device is arranged as a buffer storage device between the at least one fuel cell and the at least one consumer, and
- wherein the electrical energy storage device is configured to provide electrical power the gas turbine in a start-up phase of the gas turbine.
4 more elements
A method for operating an energy supply system in an aircraft, the method comprising:
- providing electrical energy by a fuel cell;
- storing the provided electrical energy in an intermediate storage device;
- providing electrical energy from the intermediate storage device to a gas turbine serving as an auxiliary power unit for providing electrical power to consumers in the aircraft during a start-up phase of the gas turbine.
Dependencies are inferred from the claim text.