Gas turbine engine component having engineered vascular structure

Patent metadata

Field	Value
Publication number	US-10018052-B2
Application number	US-201514948669-A
Country	US
Kind code	B2
Filing date	Nov 23, 2015
Priority date	Dec 28, 2012
Publication date	Jul 10, 2018
Grant date	Jul 10, 2018

Abstract

A component according to an exemplary aspect of the present disclosure includes, among other things, a wall and a hollow vascular engineered lattice structure formed inside of the wall. The hollow vascular engineered lattice structure has an inlet hole and an outlet hole that communicate fluid into and out of the hollow vascular structure. The hollow vascular engineered lattice structure further has at least one resupply inlet hole between the inlet hole and the outlet hole to communicate additional fluid into the hollow vascular engineered lattice structure.

First claim

The invention claimed is:

1. A component, comprising:
a wall; and
a hollow vascular engineered lattice structure formed inside of said wall, said hollow vascular engineered lattice structure having an inlet hole and an outlet hole that communicate fluid into and out of said hollow vascular engineered lattice structure, said hollow vascular engineered lattice structure further having at least one resupply inlet hole between said inlet hole and said outlet hole with respect to a dimension of said component to communicate additional fluid into said hollow vascular engineered lattice structure; and
wherein said at least one resupply inlet hole has an inlet section with an increased dimension relative to a remainder of said at least one resupply inlet hole.

2. The component as recited in claim 1 , wherein said hollow vascular engineered lattice structure includes hollow passages that extend through one or more nodes and one or more branches of said hollow vascular engineered lattice structure.

3. The component as recited in claim 2 , wherein said at least one resupply inlet hole is configured to communicate fluid into one of said one or more nodes.

4. The component as recited in claim 2 , wherein said one or more nodes and one or more branches are one of (1) uniformly distributed throughout said hollow vascular engineered lattice structure and (2) non-uniformly distributed throughout said hollow vascular engineered lattice structure.

5. The component as recited in claim 2 , wherein said one or more branches are one of (1) orthogonal to said one or more nodes and (2) non-orthogonal to said one or more nodes.

6. The component as recited in claim 1 , wherein said at least one resupply inlet hole is inclined at a non-zero angle relative to a normal to said wall.

7. The component as recited in claim 6 , comprising:
a lattice cavity defined between internal surfaces of said wall and external surfaces of said hollow vascular engineered lattice structure;
wherein said wall defines exterior surfaces of said component;
wherein said hollow vascular structure is defined by a plurality of nodes and a plurality of branches each extending from at least one of said plurality of nodes, with respective internal passages defined within each node of said plurality of nodes and within each branch of said plurality of branches for communicating fluid, said internal passages being distinct from said lattice cavity;
wherein said at least one resupply inlet hole is a plurality of resupply inlet holes each configured to communicate fluid between a cooling source cavity and a respective node of the plurality of nodes; and
wherein said outlet hole is a plurality of film cooling holes.

8. The component as recited in claim 7 , wherein said plurality of nodes and said plurality of branches are spaced apart from said internal surfaces such that fluid is communicated in said lattice cavity around and over said plurality of nodes and said plurality of branches, and said inlet section has a multi-lobed shape.

9. The component as recited in claim 1 , wherein said hollow vascular engineered lattice structure is one of a co-flow vascular engineered lattice structure and a counter-flow vascular engineered lattice structure.

10. The component as recited in claim 1 , wherein said outlet hole is a film cooling hole.

11. A component, comprising:
a wall;
a solid vascular engineered lattice structure formed inside of said wall, said solid vascular engineered lattice structure having an inlet hole and an outlet hole that communicate fluid into and out of said solid vascular engineered lattice structure, said solid vascular engineered lattice structure further having at least one resupply inlet hole between said inlet hole and said outlet hole with respect to a dimension of said component to communicate additional fluid into said solid vascular engineered lattice structure; and
wherein said at least one resupply inlet hole has an inlet section with an increased dimension relative to a remainder of said at least one resupply inlet hole.

12. The component as recited in claim 11 , wherein said solid vascular structure includes a plurality of nodes, a plurality of branches that extend between said plurality of nodes, and a plurality of passages extending between said plurality of nodes and said plurality of branches.

13. The component as recited in claim 12 , wherein said at least one resupply inlet hole is configured to communicate fluid into a space between adjacent ones of said plurality of nodes.

14. The component as recited in claim 12 , wherein said plurality of nodes and said plurality of branches are one of (1) uniformly distributed throughout said solid vascular engineered lattice structure and (2) non-uniformly distributed throughout said solid vascular engineered lattice structure.

15. The component as recited in claim 12 , wherein said plurality of branches are one of (1) orthogonal to said plurality of nodes and (2) non-orthogonal to said plurality of nodes.

16. The component as recited in claim 11 , wherein said at least one resupply inlet hole is inclined at a non-zero angle relative to a normal to said wall.

17. The component as recited in claim 16 , wherein:
interconnected lattice passages are defined between internal surfaces of said wall and external surfaces of said solid vascular engineered lattice structure;
said solid vascular engineered lattice structure includes a plurality of nodes and a plurality of branches that extend between said plurality of nodes, said lattice passages extending between said plurality of nodes and said plurality of branches, with at least some of said plurality of branches being spaced apart from said internal surfaces such that fluid is communicated from a cooling source cavity, through said at least one resupply inlet hole into said solid vascular engineered lattice structure and then around and over said plurality of nodes and said plurality of branches; and
said wall defines exterior surfaces of said component.

18. The component as recited in claim 17 , wherein said wall is part of a combustor panel of a gas turbine engine.

19. The component as recited in claim 11 , wherein said outlet hole is a film cooling hole.

20. The component as recited in claim 11 , wherein said wall is part of a blade, a vane or a blade outer air seal (BOAS) of a gas turbine engine.

21. A method for producing a component, comprising the steps of:
forming a vascular engineered lattice structure inside of a wall of the component, said vascular engineered lattice structure having at least one of a hollow lattice structure and a solid lattice structure and including an inlet hole and an outlet hole that communicate fluid into and out of said vascular engineered lattice structure, said vascular engineered lattice structure further including at least one resupply inlet hole between said inlet hole and said outlet hole with respect to a dimension of said component to communicate additional fluid into said vascular engineered lattice structure; and
wherein said at least one resupply inlet hole has an inlet section with an increased dimension relative to a remainder of said at least one resupply inlet hole.

22. The method as recited in claim 21 , wherein the step of forming the vascular engineered lattice structure includes:
forming a core using an additive manufacturing process; and
using the core to cast the vascular engineered lattice structure.

Assignees

• United Technologies Corp

Inventors

• Snyder Daniel A
• Propheter-Hinckley Tracy A
• Mongillo Dominic J

Classifications

• F05D2220/32

  in gas turbines · CPC title

• F01D11/08

  for sealing space between rotor blade tips and stator (specially-shaped blade tips therefor F01D5/20) · CPC title

• F05D2230/30

  with deposition of material · CPC title

• F05D2230/21

  by casting · CPC title

• F23R2900/03041

  Effusion cooled combustion chamber walls or domes · CPC title