Back to results
US 9,803,498 B2Granted
One-piece fuel nozzle for a thrust engine
AssigneeUnited Technologies Corporation
InventorsGordon F. Jewess, Patrick M. Lydon, Robert O. Barkley, Eric J. Alexander, Davis Bunone
Life of this patent
Estimating the term…
Abstract
A nozzle formed of one piece for a jet engine includes a mixing tube, a fuel conduit integrally formed with the mixing tube, and an opening through the fuel conduit and directed radially into the mixing tube.
Claims21
A nozzle for a jet engine, said nozzle comprising:
- a mixing tube defining a first cylindrical passage that extends continuously radially outward from a centerline axis of the mixing tube;
- a fuel conduit integrally formed with a first end of the mixing tube, the fuel conduit comprising a cylindrical wall defining a second cylindrical passage that extends continuously radially outward from a centerline axis of the fuel conduit and is separate from the first cylindrical passage, the first end of the mixing tube having a slot that extends through a wall of the mixing tube, the fuel conduit at least partially defining the slot;
- and
- an opening in the cylindrical wall of the fuel conduit that defines a third passage that extends through the cylindrical wall, radially outward from the centerline axis of the fuel conduit, opens at a first end of the third passage into the first cylindrical passage, and opens at an opposite second end of the third passage into the second cylindrical passage.
1 more element
A nozzle assembly for a jet engine, comprising:
- a combustor housing;
- a plurality of axially aligned nozzles that are axially aligned at a first axial position with respect to a central longitudinal axis of the combustor housing, each axially aligned nozzle comprising:
- a mixing tube disposed in the combustor housing;
- a fuel conduit integrally formed with said mixing tube and disposed outside of the combustor housing, wherein each fuel conduit is cylindrical and extends between opposing first and second ends of the fuel conduit;
- and
- an opening intermediate of the opposing first and second ends of the fuel conduit that extends through a wall of said fuel conduit, said opening directed radially into said mixing tube;
- and
- a plurality of fuel line segments, each fuel line segment extending between and fluidly connecting respective first and second ends of respective fuel conduits of respective adjacent axially aligned nozzles;
- wherein each fuel line segment comprises terminal ends at the first axial position, and an intermediate portion that connects the terminal ends, the intermediate portion extending away from the first axial position of the terminal ends to a second axial position without crossing the first axial position, the second axial position being different than the first axial position;
- and
- wherein the opposing first and second ends of each fuel conduit each comprise a respective opening that opens in a circumferential direction with respect to the central longitudinal axis of the combustor housing, each respective opening connected to a respective terminal end of a respective fuel line segment, each respective terminal end extending in the same circumferential direction as the respective opening to which the respective terminal end connects.
8 more elements
Dependencies are inferred from the claim text.