Patent ID: 11912428
Assignee: AIRBUS OPERATIONS LIMITED
Field: Transport (Mechanical engineering)
Classification: CPC B  A | IPC A  B

Claim 20:
21. A method of controlling the flammability of a fuel tank containing fuel, the method comprising:
providing a controller, wherein the controller is configured to calculate a value for a temperature of fuel inside the fuel tank at the given time based on the current value of the temperature inside a different fuel tank using a predefined relationship between temperature of fuel in the different fuel tank and temperature of fuel in the fuel tank;
receiving a current fuel temperature value for the fuel in the fuel tank;
determining a minimum ullage pressure using predefined flammability information for the fuel tank, wherein the determined minimum ullage pressure is the lowest ullage pressure at which the fuel tank is not flammable when fuel contained in the fuel tank is at the current fuel temperature;
controlling the ullage pressure to be greater than or equal to the minimum ullage pressure.