Back to results
US 6,532,729 B2Granted
Shelf truncated chevron exhaust nozzle for reduction of exhaust noise and infrared (IR) signature
AssigneeGeneral Electric Company
InventorSteven Martens
Life of this patent
Estimating the term…
Abstract
An exhaust nozzle includes an annular exhaust duct for discharging exhaust from an aft end thereof. Circumferentially adjoining chevrons extend from the duct aft end around only an arcuate portion thereof leaving a plain arcuate shelf between terminal ones of the chevrons. Each of the chevrons has a triangular configuration and a compound arcuate contour both circumferentially and axially.
Claims31
A gas turbine engine exhaust nozzle comprising:
- an annular exhaust duct for discharging exhaust from an aft end thereof;
- a plurality of circumferentially adjoining chevrons extending from said duct aft end around only an arcuate portion thereof leaving a plain arcuate shelf between terminal ones of said chevrons;
- and
- each of said chevrons has a triangular configuration and a compound arcuate contour both circumferentially and axially.
1 more element
A gas turbine engine core exhaust nozzle comprising:
- a circumferentially continuous core exhaust duct for discharging core engine combustion exhaust from an aft end thereof;
- a plurality of circumferentially adjoining chevrons extending from a circumferentially continuous arcuate shelf between terminal ones of said chevrons;
- and
- each of said chevrons has a triangular configuration and a compound arcuate contour both circumferentially and axially.
1 more element
A gas turbine engine fan exhaust nozzle comprising:
- a circumferentially discontinuous fan exhaust duct for discharging fan air exhaust from an aft end thereof;
- a plurality of circumferentially adjoining chevrons extending from said duct aft end around only an arcuate portion thereof leaving a circumferentially discontinuous arcuate shelf equidistantly between terminal ones of said chevrons;
- and
- each of said chevrons has a triangular configuration and a compound arcuate contour both circumferentially and axially.
1 more element
Dependencies are inferred from the claim text.