TURBINE BUCKET FOR USE IN GAS TURBINE ENGINES AND METHODS FOR FABRICATING THE SAME
First Claim
Patent Images
1. A turbine bucket for use with a turbine engine, said turbine bucket comprising:
- an airfoil extending between a root end and a tip end, said airfoil comprising;
an outer wall defining a cavity extending from said root end to said tip end, said outer wall comprising a first ceramic matrix composite (CMC) substrate extending a first distance from said root end to said tip end; and
an inner wall positioned within said cavity, said inner wall comprising a second CMC substrate extending a second distance from said root end towards said tip end that is different than said first distance.
3 Assignments
0 Petitions
Accused Products
Abstract
A turbine bucket for use with a turbine engine. The turbine bucket includes an airfoil that extends between a root end and a tip end. The airfoil includes an outer wall that defines a cavity that extends from the root end to the tip end. The outer wall includes a first ceramic matrix composite (CMC) substrate that extends a first distance from the root end to the tip end. An inner wall is positioned within the cavity. The inner wall includes a second CMC substrate that extends a second distance from the root end towards the tip end that is different than the first distance.
-
Citations
20 Claims
-
1. A turbine bucket for use with a turbine engine, said turbine bucket comprising:
an airfoil extending between a root end and a tip end, said airfoil comprising; an outer wall defining a cavity extending from said root end to said tip end, said outer wall comprising a first ceramic matrix composite (CMC) substrate extending a first distance from said root end to said tip end; and an inner wall positioned within said cavity, said inner wall comprising a second CMC substrate extending a second distance from said root end towards said tip end that is different than said first distance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
9. A turbine engine system comprising:
-
a compressor; a turbine coupled in flow communication with said compressor to receive at least some of the air discharged by said compressor; a rotor shaft rotatably coupled to said turbine, said rotor shaft defining a centerline axis; and a plurality of circumferentially-spaced turbine buckets coupled to said rotor shaft, each of said plurality of turbine buckets comprising; an airfoil extending between a root end and a tip end, said airfoil comprising; an outer wall defining a cavity extending from said root end to said tip end, said outer wall comprising a first ceramic matrix composite (CMC) substrate extending a first distance from said root end to said tip end; and an inner wall positioned within said cavity, said inner wall comprising a second CMC substrate extending a second distance from said root end towards said tip end that is different than said first distance. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
-
-
17. A method for fabricating a turbine bucket for use in a turbine engine system, said method comprising:
-
forming an outer wall of an airfoil that extends between a root end and a tip end, the outer wall including an inner surface that defines a cavity therein, the outer wall including a first ceramic matrix composite (CMC) substrate extending a first distance from the root end to the tip end; forming an inner wall within the cavity, the inner wall including a second CMC substrate extending a second distance from root end towards the tip end that is different than the first distance; and forming a tip pocket at the tip end that is defined by the outer wall and the inner wall. - View Dependent Claims (18, 19, 20)
-
Specification