FUEL INJECTOR

摘要

A fuel injector head (17) for a gas turbine engine the head comprising a pilot injector (10) and a main injector located radially outwardly of the pilot injector. A concentric separates the pilot injector from the main injector and bounding a duct through which in use a fuel injected by the pilot injector flows. The splitter (25) is hollow to improve cooling and has a radially inner surface (30) which defines a first portion which tapers radially inwardly to a throat and a second portion (28) which tapers radially outwardly from the throat with, the angle of the radially outwards taper being such that a flow of air in use over the radially inner surface remains attached over the length of the surface.