United Technologies Corporation

Thomas Frasca

Francis C Pane, Jr

John A Matthews

Richard R Wright

John M Sarnik

A threaded insert 22 is restrained from rotation by deformation into a recess 28. The recess 28 is only located in line with a directional stress pattern 34 in the receiving member 18 whereby stress concentration is avoided at high stress locations.

Locked threaded insert for high stress application

A fuel nozzle for a gas turbine engine is constructed with two major castings where one is the support and the other is the head, both welded together adjacent the fuel orifice plate. The fuel passage is cast into the support providing a smooth radius from the radial to axial flow path and a smooth transition from the circular to the annular cross section. This configuration allows dimension control over the filming lip and other critical dimensions of the nozzle.

Growing community of inventors

Wethersfield, CT, United States of America

Thomas Frasca