United Technologies Corporation

Hamilton Sundstrand Corporation

David W Anderson

Louis J Bruno

Thomas M Zywiak

James Olaf Hansen

Todd A Spierling

Billie W Bunting

David R Malley

Richard M Murphy

Thomas E O'Connell

William H King

Robert J DeRosa

John H Baker, Ii

Fungayi Mutsengi

An airplane is provided. The airplane includes a vapor cycle air conditioning system that receives outside air, a bleed system with at least one port, and an electric fan. A source of outside air when the airplane is on ground is forced air from the electric fan. The source of the outside air when the airplane is at cruise is bleed air from the at least one port.

Hybrid electric

A ferrule for use with a nut with an internal locking mechanism includes a first tubular portion with a first end and a first outer diameter for connecting to a first object; a second tubular portion with a second end and a second outer diameter for connecting to a second object; a transition portion connecting the first tubular portion and the second tubular portion; and a plurality of pockets spaced circumferentially around the second portion to engage the internal locking mechanism of the nut.

Ferrule

Systems and methods for enhancing the cold-formability of Ti 6-2-4-2 sheet material are described herein. Embodiments of these methods comprise cold-forming a predetermined, pretreated Ti 6-2-4-2 alloy into a cold-formed shape; subjecting the cold-formed shape to a post-forming annealing cycle comprising: heating the cold-formed shape to about 1450&#xb1;25 &#xb0; F.; holding the cold-formed shape at about 1450&#xb1;25&#xb0; F. for about 15&#xb1;2 minutes; and cooling the cold-formed shape to room temperature. Embodiments of these methods further comprise subjecting the predetermined Ti 6-2-4-2 alloy to a pre-forming annealing cycle comprising: heating the predetermined alloy to a pre-forming annealing temperature of about 1550-1750&#xb0; F.; holding the predetermined alloy at the pre-forming annealing temperature for about 30 minutes; and cooling the predetermined alloy to room temperature. These methods allow components comprising 90&#xb0; bend angles, having a bend factor as low as about 6.2 T, to be achieved.

Ti 6-2-4-2 sheet with enhanced cold-formability

Methods are described for attaching ceramic fibrous bodies to metallic substrates. Metal fibers or metal wires are woven into the ceramic fibrous body which is to be adjacent the substrate and the exposed portion of these fibers or wires is attached by brazing to the substrate.

Method of attaching ceramic fiber arrays to metallic substrates

A fushion welded surfacing process for use with crack prone substrates is described. The process involves the application of an intermediate layer of crack resistant alloy by fusion welding followed by the application of the desired final surfacing alloy by fusion welding. The intermediate layer is an age hardenable nickel superalloy to which intentional additions of manganese have been made. The final surfacing alloy may be of the hardfacing type or may be of a type which imparts corrosion and oxidation resistance to the underlying article.

Two-way surfacing process by fusion welding

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South Windsor, CT, United States of America

David W Anderson