Containment Case for Gas Turbine Engine
AssigneesROLLS-ROYCE plc, Rolls-Royce North American Technologies Inc.
InventorsRobert W. HEETER, Philip M. BASTNAGEL, Allen BARTA, Matthew J. KAPPES
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Abstract
A fan containment case includes a barrel that includes a case structure and a nanocrystalline metal coating overlying the case structure. The case structure includes a plurality of carbon fiber bands, in which at least an outermost carbon fiber band and an innermost carbon fiber band include a fire resistant polymer matrix. The case structure also includes at least one cut resistant polymer band between the outermost and the innermost carbon fiber bands.
Claims20
A containment case, comprising:
- a barrel comprising:
- a case structure comprising:
- a plurality of carbon fiber bands, wherein at least an outermost carbon fiber band and an innermost carbon fiber band include a fire resistant polymer matrix;
- and
- at least one cut resistant polymer band between the outermost and the innermost carbon fiber bands;
- and
- a nanocrystalline metal coating overlying the case structure.
A gas turbine engine, comprising:
- a containment case comprising:
- a barrel comprising:
- a case structure comprising:
- a plurality of carbon fiber bands, wherein at least an outermost carbon fiber band and an innermost carbon fiber band include a fire resistant polymer matrix;
- and
- at least one cut resistant polymer band between the outermost and the innermost carbon fiber bands;
- and
- a nanocrystalline metal coating overlying the case structure.
A method of fabricating a containment case, comprising:
- forming a nanocrystalline metal coating overlying a case structure, wherein the case structure comprises:
- a plurality of carbon fiber bands, wherein at least an outermost carbon fiber band and an innermost carbon fiber band include a fire resistant polymer matrix including an outermost carbon fiber layer and an innermost carbon fiber band;
- and
- at least one cut resistant band between the outermost and the innermost carbon fiber bands.
Dependencies are inferred from the claim text.