Connecting system for metal components and CMC components, a turbine blade retaining system and a rotating component retaining system
AssigneeGeneral Electric Company
InventorDonald Earl Floyd
Life of this patent
Estimating the term…
Abstract
A connecting system for metal component and CMC components, a turbine blade retaining system and rotating component retaining system are provided. The connecting system includes a retaining pin, a metal foam bushing, a first aperture disposed in the metal component, and a second aperture disposed in the ceramic matrix composite component. The first aperture and the second aperture are configured to form a through-hole when the metal component and the ceramic matrix composite component are engaged. The retaining pin and the metal foam bushing are operably arranged within the through-hole to connect the metal component and the ceramic matrix composite component.
Claims19
A connecting system for connecting a metal component and a ceramic matrix composite component comprising:
- a retaining pin;
- a metal foam bushing;
- a first aperture disposed in the metal component;
- and
- a second aperture disposed in the ceramic matrix composite component, wherein the first aperture and the second aperture are configured to form a through-hole when the metal component and the ceramic matrix composite component are engaged, the retaining pin and metal foam bushing being operably arranged within the through-hole to connect the metal component and the ceramic matrix composite component,
- wherein the metal foam bushing has a coefficient of thermal expansion that is between the coefficient of thermal expansion of the retaining pin and the coefficient of thermal expansion of the ceramic matrix composite component.
A turbine blade retaining system of a gas turbine comprising:
- a retaining pin;
- a metal foam bushing;
- a first aperture disposed in a holder segment;
- and
- a second aperture disposed in a airfoil segment, wherein the first aperture and the second aperture form a through-hole for receiving the metal foam bushing and the retaining pin when the airfoil segment and holder segment are engaged, the retaining pin and metal foam bushing being operably arranged within the through-hole to connect the airfoil segment and the holder segment to form the turbine blade retaining system,
- wherein the metal foam bushing has a coefficient of thermal expansion that is between the coefficient of thermal expansion of the retaining pin and the coefficient of thermal expansion of the airfoil segment.
A rotating component retaining system comprising:
- a retaining pin;
- a first aperture disposed in a first component, the first component having a first coefficient of thermal expansion;
- and
- a second aperture disposed in a second component, the second component having a second coefficient of thermal expansion;
- and
- a bushing having a third coefficient of thermal expansion, the third coefficient of thermal expansion being intermediate to the first coefficient of thermal expansion and second coefficient of thermal expansion,
- wherein the first aperture and the second aperture form a through-hole for receiving the bushing and the retaining pin when the first component and the second component are engaged, the retaining pin and bushing being operably arranged within the through-hole to connect the first component and the second component to form the rotating component retaining system.
Dependencies are inferred from the claim text.