General Electric Company

Gerard P Kroger

Ralph A Kirkpatrick

Robert Paul Czachor

Robert Andrew Peck

Sifarat S Husain

The invention relates to a connection system for connecting a ring which carries aircraft propeller blades to a turbine which the ring surrounds. Brackets extend between the ring and the turbine and accommodate thermal expansion of the turbine without significant deformation.

Connection system for aircraft propeller blades

An improved blade mounting arrangement for a gas turbine engine with a turbine and an annular flowpath therethrough is disclosed. The improvement comprises a one-piece outer casing and a one-piece inner casing bounding the flowpath. The outer casing has a plurality of circumferential recesses disposed therein with each of the recesses having first and second axially opposite circumferential slots. A plurality of first turbine blades, each with axially facing tangs on a mounting platform, mate with the slots in the outer casing recess. The inner casing has a plurality of recesses disposed therein, each of the recesses including a forward circumferential slot and concentric aft radially outer and radially inner circumferential slots. A plurality of second turbine blades, each with forward and aft axially facing tangs on a mounting platform, mate with respective ones of forward slot and radially outer slot in the inner casing recess.

Turbomachinery blade mounting arrangement

A removable disk for an annular casing in a turbomachine is disclosed. The disk is coaxial with the casing and slideably engagable with the casing in ambient conditions. The disk radially contacts the casing during operation so as to provide increased stiffness to the casing.

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Cincinnati, OH, United States of America

Gerard P Kroger