United Technologies Corporation

Thomas C Walsh

Peter E Voyer

Philip S Stripinis

Francis J Wallace

Joseph Grzyb

A stator assembly 46 for an axial flow rotary machine 10 is disclosed. Various construction details which increase the efficiency of the machine are developed. In one embodiment, the machine includes a circumferentially continuous structural outer case and a circumferentially continuous inner case which is a pressure vessel for the working medium flow path.

Stator assembly for a rotary machine

A compression section of a gas turbine engine having an annular flow path is disclosed. Various construction details which increase the efficiency of an array of rotor blades in the compression section are developed. The annular flow path is contoured to cause the streamlines of the flow path to follow a pattern of varying radial curvature. In one embodiment, a conical surface extending between the base of each airfoil on the inner wall causes a flow path contraction and a cylindrical surface on the outer wall facing the tip of each airfoil enables close clearances.

Compression section for an axial flow rotary machine

The method of fabricating a jet engine casing into two removable halves is disclosed. The method includes turning a cylindrical blank to obtain the radial structural ribs, diametrically slotting axially the outer diameter to receive two mating flanges and boring the inside diameter to remove sufficient material to expose the inner edge of the mating flanges whereby the casing is split along the axial axis.

Method for manufacturing a split engine casing from a cylinder

The method disclosed herein is the improved construction of an engine split case by electron beam welding the mating flanges to the split case cylinder where the outer diameter of the case includes 'L' shaped rails and radial circumferential flanges.

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New Britain, CT, United States of America

Thomas C Walsh