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US 10,590,952 B2Granted
Nacelle assembly
AssigneeUnited Technologies Corporation
InventorFrederick M. Schwarz
Life of this patent
Estimating the term…
Abstract
The present disclosure relates generally to a fan nacelle assembly circumferentially surrounding a fan section, the fan nacelle assembly including an inner wall including an inner wall axial length, and an outer wall an outer wall axial length, wherein the outer wall axial length is greater than the inner wall axial length.
Claims12
A gas turbine engine including a fan section, the fan section comprising:
- a plurality of fan blades;
- a plurality of guide vanes positioned aft of the plurality of fan blades;
- a fan containment case circumferentially surrounding the plurality of fan blades and the plurality of guide vanes, the fan containment case comprising a first flange located on an outer surface of the fan containment case forward of the plurality of fan blades, and a second flange located on the outer surface of the fan containment case aft of the plurality of guide vanes;
- a fan nacelle assembly circumferentially surrounding the fan containment case, the fan nacelle assembly comprising:
- an inner wall including an inner aft end, the inner aft end being secured to the first flange;
- and
- a monolithic outer wall defining an outer surface of the fan nacelle assembly and including an outer wall aft end, the outer wall aft end being positioned aft of the first flange and is secured to the second flange, wherein an axial length of the monolithic outer wall is greater than an axial length of the inner wall.
4 more elements
A gas turbine engine including a fan section, the fan section comprising:
- a plurality of fan blades;
- a plurality of guide vanes positioned aft of the plurality of fan blades;
- a fan containment case circumferentially surrounding the plurality of fan blades and the plurality of guide vanes, the fan containment case comprising a first flange located on an outer surface of the fan containment case forward of the plurality of fan blades, and a V-groove located on the outer surface of the fan containment case aft of the plurality of guide vanes;
- a fan nacelle assembly circumferentially surrounding the fan containment case, the fan nacelle assembly comprising:
- an inner wall including an inner aft end, the inner aft end being secured to the first flange;
- and
- a monolithic outer wall defining an outer surface of the fan nacelle assembly and including an outer wall aft end, the outer wall aft end is positioned aft of the first flange and is secured to the V-groove, wherein an axial length of the monolithic outer wall is greater than an axial length of the inner wall.
4 more elements
Dependencies are inferred from the claim text.