Fuel injector
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United States of America Patent
Stats
-
Feb 5, 2013
Grant Date -
Mar 4, 2010
app pub date -
Nov 19, 2007
filing date -
Dec 15, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A fuel injector head for a gas turbine engine the head comprising a pilot injector 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 is hollow to improve cooling and has a radially inner surface which defines a first portion which tapers radially inwardly to a throat and a second portion 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.
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