Turbine blade retention device
AssigneeHamilton Sundstrand Corporation
InventorShihming Jan
Life of this patent
Estimating the term…
Abstract
A turbine blade assembly has a turbine blade with a root section and an airfoil section. The root section has one of a radially extending groove or flange, and a retainer element has the other of the groove and the flange. The groove receives the flange to hold the retainer element and the blade together. The retainer element has axial ends extending radially inwardly to secure a turbine blade assembly within a disk slot in a turbine rotor disk. A method is also disclosed.
Claims15
A turbine blade assembly comprising:
- a turbine blade having a root section and an airfoil;
- said root section having one of a radially extending groove and flange;
- and
- a retainer element having the other of said groove and said flange, with said groove being positioned in said flange to hold said retainer element and said blade together, and said retainer element having axial ends which extend radially to secure an assembled blade and retainer element within a disk slot in a turbine rotor disk.
A turbine blade assembly comprising:
- a turbine blade having a root section and an airfoil;
- said root section having a radially extending groove;
- a retainer element having a radially extending flange, with said groove being positioned in said flange to hold said retainer element and said blade together, and said retainer element having axial ends which extend radially to secure an assembled blade and retainer element within a disk slot in a turbine rotor disk;
- said groove extends into said root section of said blade;
- said groove extends into said root section at a radially innermost end of said root section;
- a channel is formed in said radially innermost end of said root section, and said channel receives a body portion of said retainer element;
- said root section extends between two axial ends, and said channel extends between said two axial ends;
- said channel is positioned spaced between said two axial ends;
- and
- said retainer element has a first end which is formed to extend radially inwardly, and a second end which is not formed to extend radially inwardly, but which is deformed radially inwardly after said assembly is positioned within a disk slot.
A method of assembling turbine blades within a turbine disk comprising the steps of:
- (a) positioning a blade having one of a groove and a flange and a retainer element having the other of a groove and a flange such that said flange is positioned in said groove to hold said blade and said retainer element together;
- (b) sliding said blade and said retainer element into a slot in a turbine disk;
- and
- (c) deforming at least a portion of said retainer element radially to secure said retainer element to said turbine disk, and to secure said blade in said slot.
Dependencies are inferred from the claim text.