Gas turbine engine component having vascular engineered lattice structure

Patent metadata

Field	Value
Publication number	US-10156359-B2
Application number	US-201314655059-A
Country	US
Kind code	B2
Filing date	Mar 15, 2013
Priority date	Dec 28, 2012
Publication date	Dec 18, 2018
Grant date	Dec 18, 2018

Abstract

A component according to an exemplary aspect of the present disclosure includes, among other things, a wall and a vascular engineered lattice structure formed inside of the wall. The vascular engineered lattice structure includes at least one of a hollow vascular structure and a solid vascular structure configured to communicate fluid through the vascular engineered lattice structure.

First claim

What is claimed is:

1. A component, comprising:
a wall defining exterior surfaces of the component;
a vascular engineered lattice structure formed inside of said wall, and interconnected lattice passages defined between internal surfaces of said wall and external surfaces of said vascular engineered lattice structure;
said vascular engineered lattice structure includes at least a solid vascular structure configured to communicate fluid through said vascular engineered lattice structure, wherein said solid vascular structure is defined by a first set of nodes interconnected to a first set of branches, with fluid communicated in said lattice passages around and over said first set of nodes and said first set of branches;
wherein said first set of branches and said first set of nodes are non-uniformly distributed throughout said vascular engineered lattice structure, and at least some of said first set of branches and at least some of said first set of nodes are spaced apart from each of said internal surfaces of said wall;
wherein said vascular engineered lattice structure includes a hollow vascular structure in which airflow is communicated inside hollow passages of a second set of nodes and a second set of branches of said vascular engineered lattice structure;
wherein a first portion of said vascular engineered lattice structure includes said hollow vascular structure and a second portion of said vascular engineered lattice structure includes said solid vascular structure;
wherein said second set of nodes are interconnected to said second set of branches, with a plenum defined within each node of said second set of nodes, and with an internal passage defined within each branch of said second set of branches, each said internal passage being discrete and interconnected with a respective one of said plenum for communicating fluid, each said internal passage and each said plenum being distinct from said lattice passages; and
wherein said wall is part of a combustor panel of a gas turbine engine.

2. The component as recited in claim 1 , wherein each of said first set of nodes and said first set of branches being free of any internal passages.

3. The component as recited in claim 2 , wherein said vascular engineered lattice structure establishes a ratio of cooling area to structural area, said cooling area defined by each said internal passage and said lattice passages, said structural area defined by said first and second sets of branches and said first and second sets of nodes, and said ratio being less than 1.

4. The component as recited in claim 2 , wherein said second set of branches and said second set of nodes are uniformly distributed throughout said vascular engineered lattice structure.

5. The component as recited in claim 2 , wherein said second set of branches and said second set of nodes are non-uniformly distributed throughout said vascular engineered lattice structure.

6. The component as recited in claim 1 , wherein said first set of branches are orthogonal to said first set of nodes.

7. The component as recited in claim 1 , wherein said first set of branches are non-orthogonal to said first set of nodes.

8. The component as recited in claim 1 , wherein said vascular engineered lattice structure is a co-flow vascular engineered lattice structure with respect to a direction of flow of a gas path bounded by said exterior surfaces.

9. The component as recited in claim 1 , wherein said vascular engineered lattice structure is a counter-flow vascular engineered lattice structure with respect to a direction of flow of a gas path bounded by said exterior surfaces.

10. A method for producing a component, comprising the steps of:
forming a vascular engineered lattice structure inside of a wall of the component, said wall defining exterior surfaces of the component, and interconnected lattice passages defined between internal surfaces of said wall and external surfaces of said vascular engineered lattice structure, said vascular engineered lattice structure having at least a solid lattice structure defined by a first set of nodes interconnected to a first set of branches; and
communicating fluid in said lattice passages around and over said first set of nodes and said first set of branches;
wherein said first set of branches and said first set of nodes are non-uniformly distributed throughout said vascular engineered lattice structure, and at least some of said first set of branches and at least some of said first set of nodes are spaced apart from each of said internal surfaces of said wall;
wherein said vascular engineered lattice structure includes a hollow vascular structure in which airflow is communicated inside hollow passages of a second set of nodes and a second set of branches of said vascular engineered lattice structure;
wherein a first portion of said vascular engineered lattice structure includes said hollow vascular structure and a second portion of said vascular engineered lattice structure includes said solid lattice structure;
wherein said second set of nodes are interconnected to said second set of branches, with a plenum defined within each node of said second set of nodes, and with an internal passage defined within each branch of said second set of branches, each said internal passage being discrete and interconnected with a respective one of said plenum for communicating fluid, each said internal passage and each said plenum being distinct from said lattice passages; and
wherein said wall is part of a combustor panel of a gas turbine engine.

11. The method as recited in claim 10 , wherein the step of forming the vascular engineered lattice structure includes utilizing direct metal laser sintering (DMLS).

12. The method as recited in claim 10 , wherein the step of forming the vascular engineered lattice structure includes utilizing electron beam melting (EBM).

13. The method as recited in claim 10 , wherein the step of forming the vascular engineered lattice structure includes utilizing select laser sintering (SLS).

14. The method as recited in claim 10 , wherein the step of forming the vascular engineered lattice structure includes utilizing select laser melting (SLM).

15. The method as recited in claim 10 , further comprising the step of: communicating fluid inside of each said plenum and each said internal passage.

16. The method as recited in claim 10 , 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.

17. The method as recited in claim 16 , wherein the additive manufacturing process includes powder bed technology and the vascular engineered lattice structure is cast using a lost wax process.

Assignees

• United Technologies Corp

Inventors

• Zelesky Mark F
• Wagner Joel H
• Propheter-Hinckley Tracy A
• Blair Michael F
• Slavens Thomas N
• Mongillo Dominic J

Classifications

• F23R3/002 Primary

  Wall structures (F23R3/02 and F23R3/007 take precedence) · CPC title

• F05D2250/185

  serpentine-like · CPC title

• F01D5/184

  Blade walls being made of perforated sheet laminae · CPC title

• F01D5/186

  Film cooling (F01D5/187 takes precedence) · CPC title

• F01D5/183 Primary

  Blade walls being porous · CPC title