Dual Material Exhaust Nozzle Flap.
DEPARTMENT OF THE AIR FORCE WASHINGTON DC
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An exhaust nozzle flap capable of resisting high exhaust temperatures of turbojet engines is disclosed. The flap is composed of a two-part structure of high-strength metal, in a support member, combined with a heat resistant base member made from a ceramic of carbon-carbon material. The different materials in the base and support members, having substantially different rates of thermal expansion, are not bolted or riveted together, but attached in a unique manner to allow relative movement there between. Patents
- Jet and Gas Turbine Engines