| 摘要 |
A gas turbine engine afterburner igniter is provided with primary fuel duct means 23 for injecting a jet of fuel into a gas stream directed into a combustion chamber (8 Fig 2 not shown). A spring 30 is positioned within the bore of said fuel duct The spring is moveable relative to said duct such that during operation said spring moves downstream though the bore due to the passage of fuel therein and returns to it's original position thereafter. During operation the spring abrades the internal surface of the bore thus removing carbon deposits. |
