Method for fabricating a component of an abatement apparatus

Patent metadata

Field	Value
Publication number	US-12189362-B2
Application number	US-201917055391-A
Country	US
Kind code	B2
Filing date	May 13, 2019
Priority date	May 15, 2018
Publication date	Jan 7, 2025
Grant date	Jan 7, 2025

Abstract

A method for fabricating a component of an abatement apparatus is disclosed. The method comprises: meshing a 3D model representation of a component defining a reaction chamber of an abatement apparatus based on specified component characteristics to define an optimised finite element representation of the component; and fabricating the optimised finite element representation. In this way, a 3D model of a component of an abatement apparatus can be generated from which its performance can be modelled. Particular characteristics of the component may be defined which affect the operation of the abatement apparatus. Those characteristics may then be used to generate the optimized finite element representation of the component which has those characteristics using meshing (it will be appreciated that meshing is the operation of representing a geometric object as a set of finite elements). The optimized finite element representation may then fabricated, reliably producing a component having the required characteristics.

First claim

The invention claimed is:

1. A method, comprising:
meshing a 3D model representation of a component defining a reaction chamber of an abatement apparatus so as to produce a porous shape consisting of a mesh with selected faces closed so as to provide porosity and line-of-sight optical blindness;
meshing the porous shape consisting of a mesh with selected faces closed to produce a secondary mesh;
using the secondary mesh to determine flow characteristics of the porous shape;
determining that the flow characteristics of the secondary mesh satisfy specified component characteristics and in response,
fabricating said porous shape.

2. The method of claim 1 , wherein meshing the 3D model representation comprises meshing with at least one finite element.

3. The method of claim 1 , wherein meshing the 3D model representation comprises fitting said finite elements to fill said 3D model representation.

4. The method of claim 3 , wherein said fitting comprises fitting said finite elements to fill said 3D model representation based on terminal constraints.

5. The method of claim 4 , wherein said terminal constraints comprise preventing protrusion of said finite elements beyond a surface of said 3D model representation.

6. The method of claim 5 , comprising selecting combinations of said finite elements to prevent protrusion of said finite elements beyond a surface of said 3D model representation.

7. The method of claim 5 , comprising truncating said finite elements to prevent protrusion of said finite elements beyond a surface of said 3D model representation.

8. The method of claim 1 , wherein meshing the 3D model representation further comprises at least partially filling a void defined by finite elements.

9. The method of claim 1 , wherein meshing the 3D model representation further comprises
varying a thickness of edges of finite elements in the mesh.

10. The method of claim 9 , wherein said specified component characteristics define a permeability.

11. The method of claim 10 , wherein meshing the 3D model representation further comprises at least partially filling a void defined by finite elements in the mesh.

12. The method of claim 1 , wherein said specified component characteristics define a porosity.

13. The method of claim 1 , wherein said specified component characteristics define a fluid flow through said porous shape.

14. The method of claim 1 , wherein said specified component characteristics define a fluid flow from said porous shape and the meshing of the 3D model representation further comprises adjusting filling of finite elements in the mesh.

15. The method of claim 1 , wherein said specified component characteristics define a structural body.

16. The method of claim 1 , wherein said specified component characteristics define a member.

17. The method of claim 1 , wherein said specified component characteristics define materials at locations of said porous shape and meshing the 3D model representation comprises specifying finite elements made from said materials.

18. The method of claim 17 , wherein said materials are located to support catalytic reactions.

19. The method of claim 1 , wherein said 3D model representation defines said component having at least one of a cylindrical, bell and polyhedron shape.

20. The method of claim 1 , wherein said 3D model representation defines said component having walls of one of constant and varied thickness.

21. The method of claim 1 , wherein said fabricating comprises additive manufacturing.

Assignees

• Edwards Ltd

Inventors

• Seeley Andrew James
• Knight Gary Peter
• Price Duncan Michael
• Verma Mayank

Classifications

• F23D14/18

  using catalysis for flameless combustion · CPC title

• G06T17/20 Primary

  Finite element generation, e.g. wire-frame surface description, {tesselation} · CPC title

• G06F30/23

  using finite element methods [FEM] or finite difference methods [FDM] · CPC title

• G06F2113/10

  Additive manufacturing, e.g. three-dimensional [3D] printing · CPC title

• G06F2119/18

  Manufacturability analysis or optimisation for manufacturability · CPC title