Brazing components and techniques

Patent metadata

Field	Value
Publication number	US-10858997-B2
Application number	US-201916256237-A
Country	US
Kind code	B2
Filing date	Jan 24, 2019
Priority date	Jun 23, 2016
Publication date	Dec 8, 2020
Grant date	Dec 8, 2020

Abstract

A method of joining includes applying braze to a braze reservoir in a first component. A second component is engaged to the first component, wherein a joint location is defined between the first and second components. A wicking structure provides flow communication from the braze reservoir to the joint location. The method also includes joining the first and second components together at the joint location by applying heat to the braze to flow the braze from the reservoir through the wicking structure to the joint location to form a braze joint at the joint location.

First claim

What is claimed is:

1. A method of joining comprising:
applying braze to a braze reservoir in a first component;
engaging a second component to the first component, wherein two separate joint locations are defined between the first and second components, wherein two-wicking structures provide flow communication from the braze reservoir to the joint locations;
heating the braze;
flowing the braze from the reservoir through the wicking structures to the joint locations; and
joining the first and second components together,
wherein there is a gap between the first and second components adjacent two separate wicking structures separated from each other by the gap when the first and second components are engaged, wherein joining includes flowing the braze into the wicking structures to the joint location leaving the gap substantially devoid of braze.

2. A method as recited in claim 1 , wherein the first component includes a radial vane, wherein the wicking structure extends radially through the radial vane, and wherein joining the first and second components includes flowing the braze radially outward to the joint location, wherein the joint location is at an end of the radial vane.

3. A method as recited in claim 1 , wherein there is a gap between the first and second components on either side of the braze reservoir after the first and second components are engaged, wherein the wicking structure and the joint location are on one side of the braze reservoir, and wherein joining includes flowing the braze into the wicking structure to the joint location leaving the gap on the side of the braze reservoir opposite the wicking structure substantially devoid of braze.

4. A nozzle comprising:
a first nozzle component;
a second nozzle component joined to the first nozzle component at a-two separate joint locations; and
two wicking structures extending from a braze reservoir to the joint locations, wherein the braze reservoir is defined in the first nozzle component,
wherein there is a gap between the first and second components adjacent two separate wicking structures separated from each other by the gap when the first and second components are engaged, wherein joining includes flowing the braze into the wicking structures to the joint location leaving the gap substantially devoid of braze.

5. A nozzle as recited in claim 4 , wherein the wicking structure and a braze joint are between the first and second nozzle components.

6. A nozzle as recited in claim 4 , wherein the first and second nozzle components are radially nested, wherein the wicking structure is radially between the first and second nozzle components, and wherein the joint location and the braze reservoir are axially spaced apart.

7. A nozzle as recited in claim 4 , wherein the first nozzle component includes a radial vane, wherein the wicking structure extends radially through the radial vane, and wherein the joint location is at an end of the radial vane.

8. A nozzle as recited in claim 4 , wherein there is a gap between the first and second nozzle components on either side of the braze reservoir, wherein the wicking structure and the joint location are on one side of the braze reservoir, and wherein the gap on the side of the braze reservoir opposite the wicking structure is substantially devoid of braze.

9. A nozzle as recited in claim 4 , wherein there is a gap between the first and second nozzle components adjacent the wicking structure, wherein the gap is substantially devoid of braze.

10. A nozzle as recited in claim 4 , wherein the wicking structure is integral with the first nozzle component.

11. A nozzle as recited in claim 10 , wherein the wicking structure includes a repeating pattern.

12. A nozzle as recited in claim 4 , wherein the wicking structure includes a semi-sintered material.

13. A nozzle as recited in claim 4 , wherein the wicking structure includes a woven material.

Assignees

• Delavan Inc

Inventors

• Ryon Jason A
• Prociw Lev Alexander

Classifications

• B23K1/18

  circumferential seams, e.g. of shells · CPC title

• B23K1/0018

  Brazing of turbine parts · CPC title

• B23K1/0008

  specially adapted for particular articles or work · CPC title

• F23R3/283

  Attaching or cooling of fuel injecting means including supports for fuel injectors, stems, or lances · CPC title

• F02C7/22 Primary

  Fuel supply systems · CPC title