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AssigneeROLLS-ROYCE plc
InventorsMurthy V V S Ravikanti, John E Rimmer, Thomas A Chin
Estimating the term…
An aircraft includes an engine system which includes a gas turbine engine and a fuel system. The engine has combustion apparatus having an annular array of alternating primary and secondary fuel-injectors. The fuel system includes a fuel store and a controller. The controller is arranged to receive one or more signals indicative of one or more of (i) starting of the gas turbine engine; (ii) flame-out of the combustion apparatus; and (ii) a manoeuvring of the aircraft associated with a risk of flame-out of the combustion apparatus or preparation for such manoeuvring; and in response thereto to control the fuel system to commence supply of fuel from the fuel store to the secondary fuel-injectors of the combustion apparatus. Compared to known aircraft, engine lighting and relighting are achieved for more rapidly and reliably and the aircraft is less susceptible to flame-out, especially where hydrogen fuel is used.
An aircraft comprising an engine system which includes:
A method of operating combustion apparatus which comprises a cylindrical outer casing and an annular array of alternating primary and secondary fuel-injectors arranged on a circumference of the cylindrical outer casing, each primary and secondary fuel-injector being arranged to emit hydrogen fuel in a direction having a component that is parallel to a longitudinal axis of the cylindrical outer casing and is normal to a plane of the array, and the combustion apparatus being comprised in a gas turbine engine of an aircraft, the method comprising the steps of
Dependencies are inferred from the claim text.