Weld configuration

Patent metadata

Field	Value
Publication number	US-10488048-B2
Application number	US-201715398852-A
Country	US
Kind code	B2
Filing date	Jan 5, 2017
Priority date	Jan 6, 2016
Publication date	Nov 26, 2019
Grant date	Nov 26, 2019

Abstract

A float assembly according to an example of the present disclosure includes a guide extending in a first direction that has a stand-up and a shelf. A cover is oriented in a second direction substantially perpendicular to the first direction and welded to the stand-up at a weld joint. An undersurface of the cover abuts the shelf, and the abutment begins at a first distance in the second direction from the weld joint and ends at a second distance in the second direction from the weld joint.

First claim

What is claimed is:

1. A float assembly comprising:
a guide extending in a first direction and having a stand-up and a shelf; and
a cover oriented in a second direction substantially perpendicular to the first direction and welded to the stand-up at a weld joint, wherein an undersurface of the cover abuts the shelf at an abutment, and the abutment begins at a first distance in the second direction from the weld joint and ends at a second distance in the second direction from the weld joint, wherein the guide and the cover from a cavity directly adjacent the weld joint, and the cover tapers as the cover extends toward the weld joint, such that the undersurface includes a concave surface that partially bounds the cavity.

2. The float assembly as recited in claim 1 , wherein the weld joint extends in the first direction.

3. The float assembly as recited in claim 1 , wherein the cavity is bound by the undersurface, the stand-up, and the shelf.

4. The float assembly as recited in claim 3 , wherein the cavity extends at least the first distance in the second direction.

5. The float assembly as recited in claim 1 , wherein the cavity is directly adjacent the abutment.

6. The float assembly as recited in claim 1 , wherein the weld joint extends from the cavity to a surface of the cover opposite the undersurface.

7. The float assembly as recited in claim 1 , wherein the guide and the cover provide at least one interior cavity, the guide provides an opening in the float assembly, and the guide fluidly isolates the opening from the interior cavity.

8. A gas turbine engine, comprising:
a combustor;
a fuel container in communication with the combustor, the fuel container including a float assembly within a body of fuel in the fuel container, wherein the float assembly comprises:
a guide extending in a first direction and having a stand-up and a shelf; and
a cover oriented in a second direction substantially perpendicular to the first direction and welded to the stand-up at a weld joint, wherein an undersurface of the cover abuts the shelf at an abutment, and the abutment begins at a first distance in the second direction from the weld joint and ends at a second distance in the second direction from the weld joint, wherein the guide and the cover from a cavity directly adjacent the weld joint, and the cover tapers as the cover extends toward the weld joint, such that the undersurface includes a concave surface that partially bounds the cavity.

9. The gas turbine engine as recited in claim 8 , wherein the weld joint extends in the first direction.

10. The gas turbine engine as recited in claim 8 , wherein the cavity is bound by the undersurface, the stand-up, and the shelf.

11. The gas turbine engine as recited in claim 10 , wherein the cavity extends at least the first distance in the second direction.

12. The gas turbine engine as recited in claim 8 , wherein the cavity is directly adjacent the abutment.

13. The float assembly as recited in claim 8 , wherein the weld joint extends from the cavity to a surface of the cover opposite the undersurface.

14. The gas turbine engine as recited in claim 8 , wherein the float assembly is coupled to a poppet valve for activating a switch that controls fluid flow into or out of the fuel container.

15. A float assembly, comprising:
a guide having a stand-up and a shelf, wherein the stand-up includes a first stand-up portion extending in a first direction and a second stand-up portion extending in a second direction from the first portion, the first direction substantially perpendicular to the first direction, and the shelf includes a first shelf portion extending in a direction angled in the first and second directions and a second shelf portion extending in the second direction from the first shelf portion; and
a cover oriented in the second direction and welded to the second stand-up portion at a weld joint, wherein an undersurface of the cover abuts the shelf at an abutment, and the abutment begins at a first distance in the second direction from the weld joint and ends at a second distance in the second direction from the weld joint
wherein the guide and the cover form a cavity directly adjacent the weld joint, and the cover tapers as the cover extends toward the weld joint, such that the undersurface includes a concave surface that partially bounds the cavity.

16. The float assembly as recited in claim 15 , wherein the first stand-up portion, the second stand-up portion, the first shelf portion, and the concave surface bound the cavity.

17. The float assembly as recited in claim 15 , wherein the guide and the cover provide at least one interior cavity different from the cavity, the guide provides an opening in the float assembly, and the guide fluidly isolates the opening from the interior cavity.

Assignees

• United Technologies Corp

Inventors

• Bales Daniel A

Classifications

• B23K31/02

  relating to soldering or welding · CPC title

• F23R3/28 Primary

  characterised by the fuel supply (burners F23D) · CPC title

• B23K2101/001

  Turbines · CPC title

• F05D2230/232

  by welding · CPC title

• F02C7/22 Primary

  Fuel supply systems · CPC title