Ronald W Rich

US Patent:

55690190, Oct 29, 1996

Filed:

Dec 21, 1995

Appl. No.:

8/576023

Inventors:

Devinder N. Katariya - Chandler AZ
Ronald J. Rich - Phoenix AZ
Steven C. Stenard - Scottsdale AZ
Bruce D. Wilson - Gilbert AZ

Assignee:

AlliedSignal Inc. - Morris Township NJ

International Classification:

F04D 2944

US Classification:

415200

Abstract:

A unitary composite stator vane for a gas turbine engine comprising an aerodynamically configured airfoil section, a foot extending substantially perpendicularly from one end of the airfoil section, and a smoothly contoured transition section interconnecting the airfoil section with the foot. The stator vane is comprised of a composite material including a plurality of compression molded, heat cured plies. The plies include a plurality of centrally located internal plies of reinforcement material of continuous yarns of para-aramid fibers. On each side of the internal plies are plies of resin impregnated graphite fiber material. The graphite fibers are protected by an external steel wire mesh ply covering the leading edges of the vanes. Substantially all of the internal para-aramid reinforcement fibers are discontinuous proximate the transition section between the airfoil section and foot.

US Patent:

55585000, Sep 24, 1996

Filed:

Feb 29, 1996

Appl. No.:

8/609095

Inventors:

Bob Elliott - Phoenix AZ
Devinder N. Katariya - Chandler AZ
Robert G. Minnick - Chandler AZ
Rita A. Peralta - Chandler AZ
Ronald J. Rich - Phoenix AZ
Daniel M. Voron - Tempe AZ
Michael J. Cave - Oceanside CA

Assignee:

AlliedSignal Inc. - Morris Township NJ

International Classification:

F04D 2934

US Classification:

416220R

Abstract:

A rotor assembly for a gas turbine engine has a disc with dovetail grooves and a plurality of blades with dovetail roots contoured to be received within the grooves. The inner surface of a flexible, high temperature, low compression set seal is bonded to the inner surface of each root portion. The outer surface of the seal has two portions inclined at an angle and spaced apart to define a surface portion for sealingly contacting the base of the groove. The longitudinal edges of the outer surface are curved to facilitate assembly.