Gas turbine combustor injection assembly, and combustor fuel mixture feed method
AssigneeAVIO S.p.A.
InventorsFabio Turrini, Antonio Peschiulli, Marco Motta
Life of this patent
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Abstract
A fuel mixture is fed to a gas turbine combustor by an injection assembly, which has an outer body with combustion-supporting air inlets; a conical tubular portion housed inside the outer body and partly defining an inner conduit and an outer annular conduit; and a first and second feed circuit for feeding liquid fuel to the inner conduit and outer annular conduit respectively; the first circuit having a ring of conduits with respective axes parallel to a generating line of an outer surface of the conical tubular portion.
Claims11
1) A gas turbine combustor injection assembly comprising an outer body with combustion-supporting air inlets;
- a conical tubular portion housed in said outer body and partly defining an inner conduit and an outer annular conduit;
- and first and second liquid fuel feeds feeding liquid fuel into said inner conduit and said outer annular conduit respectively;
- said second fuel feed comprising a fuel guide located outside said outer annular conduit to direct liquid fuel in a direction substantially parallel to a generating line of an outer surface so that a film of liquid fuel is formed on the outer surface.
7) A method of feeding a fuel mixture to a gas turbine combustor using an injection assembly comprising a hollow outer body, and a conical tubular portion housed in said hollow outer body and defining with it an annular conduit;
- the method comprising the steps of;
- feeding a stream of combustion-supporting air and at least one stream of liquid fuel into said annular conduit;
- directing said stream of liquid fuel fed into said annular conduit in a predetermined direction;
- intercepting said stream of liquid fuel with said stream of combustion-supporting air;
- and
- pushing the stream of liquid fuel towards said conical tubular portion by means of said stream of combustion-supporting air.
Dependencies are inferred from the claim text.