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US 2013/0156542 A1Published application
Energy-absorbing fan case for a gas turbine engine
AssigneeUnited Technologies Corporation
InventorsGabriel L. Suciu, Allan R. Penda, Christopher M. Dye, Jason Elliott
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Abstract
A fan case of a gas turbine engine includes a fan blade containment section defined about an engine axis and a plurality of helical ribs adjacent to the fan blade containment section.
Claims19
A fan case of a gas turbine engine comprising:
- a fan blade containment section defined about an engine axis;
- and
- a plurality of helical ribs adjacent to said fan blade containment section.
A gas turbine engine comprising:
- a fan case defined about an engine axis;
- a core case defined about said engine axis;
- a multiple of Fan Exit Guide Vanes attached to said fan case and said core case;
- a fan blade containment section within said fan case;
- and
- a plurality of helical ribs within said fan case, said plurality of helical ribs downstream of said fan blade containment section.
3 more elements
A method of absorbing energy in a fan case of gas turbine engine during a fan blade impact event comprising:
- axially deflecting the fan case in response to the fan blade impact event.
Dependencies are inferred from the claim text.