High pressure turbine component interference fit up
AssigneeGeneral Electric Company
InventorsLarry W. Plemmons, Robert Proctor, Robert J. Acbers
Life of this patent
Estimating the term…
Abstract
An interference fit up for an HPT hanger is accomplished by machining and casting features into the hanger which create a spring effect when the hanger is assembled into the support. The spring effect may be accomplished in a variety of ways, including offset radial cut features on the hanger relative to the support, or offset projection features on the hanger which are concentric with the support. The spring effect is then accomplished by a flex or deflection of the ends of the hanger to conform to the width of the support, and clearance indentations created during the installation.
Claims20
A method for accomplishing an interference fit comprising the steps of:
- providing a support having a first radius and having a first width;
- providing a hanger having a second radius and having a second width, and further having a first end and a second end;
- offsetting said second radius of said hanger and said first radius of said support, such that said second radius is greater than said first radius;
- driving said hanger into said support;
- and
- creating a spring in said hanger by flexing said first end and said second end of said hanger to conform to said first width of said support, and providing first and second clearance indentations at said first and second ends, and a third clearance indentation between said hanger and said support.
A method for accomplishing an interference fit comprising the steps of:
- providing a support having a first radius and having a first width;
- providing a hanger having a first end section having a first projection, a second end section having a second projection, and a middle section having a third projection, said first end section and said second end section having a second width at said first and second projections, and said middle section having a second radius and a third width at said third projection;
- offsetting said first and second projections with said third projection, such that said first and second projections extend radially outwardly from one side of said hanger and said third projection extends radially inwardly in an opposite direction from an opposing side of said hanger;
- driving said hanger into said support;
- and
- creating a spring in said hanger by flexing said first end section and said second end section of said hanger to conform to said first width of said support, and providing a first clearance indentation on either side of said third projection and a second clearance indentation between said first and second projections.
An interference fit hanger comprising:
- support having a first radius and having a first width;
- a flexible hanger having a second radius and having a second width, and further having a first end and a second end wherein second radius is greater than said first radius and wherein said hanger is elastically flexed to fit within said support and achieves an spring force interference fit with said support when installed;
- and
- an air flow control seal means located between said hangar and said support.
Dependencies are inferred from the claim text.