Spiral Cooled Fuel Nozzle
First Claim
1. A fuel nozzle for delivery of fuel to a gas turbine engine, the fuel nozzle comprising:
- a tubular nozzle member comprising an outer nozzle wall defining a longitudinal axis, the nozzle wall including an inner wall surface and an outer wall surface and having a fuel inlet end and a fuel outlet end;
a center body including an outer body surface, the center body having a longitudinal axis that is substantially collinear with the longitudinal axis of the nozzle wall; and
a gap defined between the inner wall surface and the outer body surface and extending circumferentially about the outer body surface for providing fuel flow in a longitudinal direction from an upstream end adjacent the inlet end to a downstream end adjacent the outlet end, the gap being effective to provide a substantially uniform temperature distribution along the nozzle wall in the circumferential direction.
3 Assignments
0 Petitions
Accused Products
Abstract
A fuel nozzle for delivery of fuel to a gas turbine engine. The fuel nozzle includes an outer nozzle wall and a center body located centrally within the nozzle wall. A gap is defined between an inner wall surface of the nozzle wall and an outer body surface of the center body for providing fuel flow in a longitudinal direction from an inlet end to an outlet end of the fuel nozzle. A turbulating feature is defined on at least one of the central body and the inner wall for causing at least a portion of the fuel flow in the gap to flow transverse to the longitudinal direction. The gap is effective to provide a substantially uniform temperature distribution along the nozzle wall in the circumferential direction.
38 Citations
20 Claims
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1. A fuel nozzle for delivery of fuel to a gas turbine engine, the fuel nozzle comprising:
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a tubular nozzle member comprising an outer nozzle wall defining a longitudinal axis, the nozzle wall including an inner wall surface and an outer wall surface and having a fuel inlet end and a fuel outlet end; a center body including an outer body surface, the center body having a longitudinal axis that is substantially collinear with the longitudinal axis of the nozzle wall; and a gap defined between the inner wall surface and the outer body surface and extending circumferentially about the outer body surface for providing fuel flow in a longitudinal direction from an upstream end adjacent the inlet end to a downstream end adjacent the outlet end, the gap being effective to provide a substantially uniform temperature distribution along the nozzle wall in the circumferential direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A fuel nozzle for delivery of fuel to a gas turbine engine, the fuel nozzle comprising:
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a tubular nozzle member comprising an outer nozzle wall defining a longitudinal axis, the nozzle wall including an inner wall surface and an outer wall surface and having a fuel inlet end and a fuel outlet end; a center body including an outer body surface, the center body having a longitudinal axis that is substantially collinear with the longitudinal axis of the nozzle wall; a gap defined between the inner wall surface and the outer body surface and extending circumferentially about the outer body surface for providing fuel flow in a longitudinal direction from an upstream end adjacent the inlet end to a downstream end adjacent the outlet end; and a turbulating feature located adjacent to the gap for causing at least a portion of the fuel flow along the length of the gap to flow transverse to the longitudinal direction, the gap being effective to provide a substantially uniform temperature distribution along the nozzle wall in the circumferential direction. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification