Igniter for gas turbine engine
AssigneePratt & Whitney Canada Corp.
InventorsRichard FREER, Kian MCCALDON, Tin-Cheung John HU, Michel BOUSQUET, André FORTIN
Life of this patent
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Abstract
There is disclosed an igniter for a gas turbine engine including: a base; a glow plug heater rod extending from the base along an axis and terminating in a rod end; and a sleeve extending at least partially axially along the heater rod, the sleeve having an inner surface facing and spaced apart from the rod, the inner surface defining a pocket adjacent to the heater rod and having a radial depth relative to the axis.
Claims20
An igniter for a gas turbine engine comprising:
- a base;
- a glow plug heater rod extending from the base along an axis and terminating in a rod end;
- and a sleeve extending at least partially axially along the heater rod, the sleeve having an inner surface facing and spaced apart from the rod, the inner surface defining a pocket adjacent to the heater rod and having a radial depth relative to the axis.
A gas turbine engine comprising:
- a casing;
- a combustor liner within the casing and spaced apart therefrom, the combustor liner delimiting a combustion chamber;
- an igniter having a base connected to the casing and a glow plug heater rod, the heater rod extending from the base along an axis and terminating in a rod end;
- and a sleeve extending circumferentially around the heater rod along at least a portion of a length of the heater rod, the sleeve having an inner surface facing and spaced apart from the rod, the inner surface having a pocket having a radial depth.
A method of operating an igniter of a gas turbine engine, comprising:
- pooling liquid fuel in a pocket having a radial depth, the pocket defined in a sleeve extending around an axis of a glow plug heater rod;
- and
- igniting the liquid fuel with the heater rod.
Dependencies are inferred from the claim text.