Gas turbine engine automator
This patent describes an annular-shaped pilot section for a flameholder disposed in the augmentor of a gas turbine engine and the pilot section having a generally parabolic-shaped wall means defining a cavity. The parabolic-shaped wall means having a closed end portion at the fore end defining a leading edge having a generally concaved-shaped surface defining a portion of the cavity and an opened portion at the aft end for admitting fuel entrained exhaust gases, the augmentor having an axially extending centerline and the annular-shaped pilot section having a centerline in coincidence with the centerline of the augmentor, the fore end and the aft end being relative to the flow of the gas path in the gas turbine engine and an igniter disposed in the cavity, wherein the improvement comprises a slot in the wall means extending transverse to the direction of the flow of exhaust from the gas turbine engine, and being located adjacent the leading edge. The slot is oriented perpendicular to the centerline of the annular-shaped pilot section and the slot is disposed a distance from the igniter wherein the flow of fuel enriched engine exhaust gases flowing through the slot is directed tangentially relative to the concave-shaped surface to create a vortical flow region, and the vortical flow region is located adjacent the igniter.
- Assignee:
- United Technologies Corp., Hartford, CT
- Patent Number(s):
- US 4765136
- OSTI ID:
- 6525995
- Resource Relation:
- Patent File Date: Filed date 24 Oct 1987
- Country of Publication:
- United States
- Language:
- English
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