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US 10,208,603 B2Granted
Staggered crossovers for airfoils
AssigneeUnited Technologies Corporation
InventorsJinQuan Xu, Scott D. Lewis
Life of this patent
Estimating the term…
Abstract
An airfoil according to an exemplary aspect of the present disclosure includes, among other things, an airfoil section having an external wall and an internal wall. The internal wall defines a first reference plane extending in a spanwise direction and through a thickness of the internal wall. A first cavity and a second cavity are separated by the internal wall. A plurality of crossover passages within the internal wall connects the first cavity to the second cavity. The plurality of crossover passages are arranged such that the passage axis of each of the plurality of cooling passages intersects a surface of the second cavity.
Claims23
An airfoil, comprising:
- an airfoil section extending in a spanwise direction from a platform section, said airfoil section having an external wall and an internal wall;
- a first cavity and a second cavity separated by said internal wall, said internal wall defining a first reference plane extending in said spanwise direction and through said first cavity and said second cavity;
- a first set of ports and a second set of ports distributed along said internal wall in said spanwise direction and positioned on opposite sides of said first reference plane, said first and second sets of ports defined along surface of said internal wall that define said second cavity;
- a plurality of crossover passages within said internal wall and connecting said first cavity to said second cavity, said plurality of crossover passages arranged such that a passage axis of each of said plurality of crossover passages intersects a surface of said second cavity;
- wherein said plurality of crossover passages includes a first set of crossover passages connected to a common one of said first set of ports and a second set of crossover passages connected to a common one of said second set of ports;
- and
- wherein said first set o f crossover passages are connected to respective ports that are positioned on opposite sides of said of said first reference plane such that said passage axis of one of said first set of crossover passage extends through said first reference plane.
4 more elements
An airfoil, comprising:
- an airfoil section extending in a spanwise direction from a platform section, said airfoil section having an external wall and an internal wall, said internal wall defining a first reference plane extending in said spanwise direction and through a thickness of said internal wall;
- a first cavity and a second cavity separated by said internal wall;
- a plurality of crossover passages within said internal wall and connecting said first cavity to said second cavity, each of said plurality of crossover passages defining a passage axis, said plurality of crossover passages distributed in said spanwise direction and arranged such that said passage axis of each of said plurality of crossover passages intersects a surface of said second cavity;
- and
- wherein said plurality of crossover passages includes a first set of crossover passages and a second set of crossover passages, said first set of crossover passage including a first set of ports and said second set of crossover passage including a second set of ports, said first and second set cavity, said first and second sets of ports positioned wall that define said second cavity, said first and second sets of ports positioned on opposite sides of said first reference plane, at least two of said first set of crossover passages including a helical geometry, and wherein said at least two of said first set of crossover passages are interlaced.
2 more elements
A gas turbine engine, comprising:
- a rotor including an airfoil and a vane spaced axially from said rotor;
- and
- wherein at least one of said airfoil and said vane includes an airfoil section, said airfoil section extending in a spanwise direction from a platform section, said airfoil section comprising:
- an external wall and an internal wall;
- a first cavity and a second cavity separated by said internal wall, said internal wall defining a first reference plane extending in said spanwise direction and through said first cavity and said second cavity;
- a first set of ports and a second set of ports defined along surfaces of said internal wall in said spanwise direction and positioned on opposite sides of said first reference plane;
- a plurality of crossover passages within said internal wall and connecting said first cavity to said second cavity, said plurality of crossover passages arranged such that a passage axis of each of said plurality of crossover passages intersects a surface of said second cavity;
- wherein said plurality of crossover passages includes a first set of crossover passages connected to a common one of said first set of ports and a second set of crossover passages connected to a common one of said second set of ports;
- and
- wherein said first set of crossover passages are connected to respective ports that are positioned on opposite sides of said first reference plane such that said passages axis of one of said first set of crossover passages extends through said first reference plane.
7 more elements
Dependencies are inferred from the claim text.