Additively manufactured carbon dioxide scrubber

Patent metadata

Field	Value
Publication number	US-11117189-B2
Application number	US-201815938865-A
Country	US
Kind code	B2
Filing date	Mar 28, 2018
Priority date	Mar 28, 2018
Publication date	Sep 14, 2021
Grant date	Sep 14, 2021

Abstract

A metal lattice for a carbon dioxide scrubber may comprise a metal lattice body defining a plurality of intersecting ligaments, wherein nodes are formed at said intersections. In various embodiments, the metal lattice may be manufactured using an additive manufacturing process. A node density of the metal lattice may vary. A ligament thickness of the metal lattice may vary. The metal lattice may comprise liner defining a channel extending through the metal lattice.

First claim

What is claimed is:

1. A metal lattice for a carbon dioxide scrubber, comprising:
a metal lattice body defining a plurality of intersecting ligaments; and
a liner extending through the metal lattice body and defining:
a channel; and
a plurality of apertures whereby the channel is in fluidic communication with the metal lattice body,
wherein the channel is in fluidic communication with an exterior surface of the metal lattice body.

2. The metal lattice of claim 1 , wherein the metal lattice is formed by an additive manufacturing process comprising one of a powder bed fusion process, a powder-feed directed energy deposition process, and a wire-feed directed energy deposition process.

3. The metal lattice of claim 2 , wherein the metal lattice body and the liner are manufactured during a single additive manufacturing process.

4. The metal lattice of claim 1 , wherein a portion of the metal lattice body extends into the channel.

5. The metal lattice of claim 1 , wherein the liner comprises a cylindrical geometry.

6. The metal lattice of claim 1 , wherein the plurality of apertures are sized to prevent a support material from entering the channel.

7. The metal lattice of claim 6 , wherein a width of each aperture of the plurality of apertures is less than a width of the support material.

8. The metal lattice of claim 1 , wherein the metal lattice and the liner comprise a single piece of material.

9. The metal lattice of claim 2 , wherein the metal lattice is formed by the powder bed fusion process.

10. The metal lattice of claim 2 , wherein the metal lattice is formed by the powder-feed directed energy deposition process.

11. The metal lattice of claim 2 , wherein the metal lattice is formed by the wire-feed directed energy deposition process.

12. The metal lattice of claim 1 , wherein nodes are formed at intersections of the plurality of intersecting ligaments.

13. The metal lattice of claim 12 , wherein a node density of the metal lattice body varies.

14. The metal lattice of claim 13 , wherein the metal lattice body comprises a cross-sectional profile having a first portion comprising a first node density and a second portion comprising a second node density at least partially surrounding the first portion, wherein the first node density is different from the second node density.

15. The metal lattice of claim 1 , wherein a thickness of each the plurality of intersecting ligaments is constant.

16. The metal lattice of claim 1 , wherein the metal lattice is made from a metal material comprising an aluminum or an aluminum alloy.

17. The metal lattice of claim 1 , wherein a ligament thickness of the metal lattice body varies along at least one of a longitudinal direction or a transverse direction.

18. The metal lattice of claim 17 , wherein the metal lattice body comprises a cross-sectional profile having a first portion comprising a first ligament thickness and a second portion comprising a second ligament thickness at least partially surrounding the first portion, wherein the first ligament thickness is different from the second ligament thickness.

19. The metal lattice of claim 18 , wherein a node density of at least one of the first portion or the second portion is constant.

Assignees

• Hamilton Sundstrand Corp

Inventors

• Lynch Matthew E
• Filburn Thomas P
• El-Wardany Tahany Ibrahim
• Walsh Peter J

Classifications

• B22F10/25

  Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS] · CPC title

• B22F10/28

  Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM] · CPC title

• B01D53/1475 Primary

  Removing carbon dioxide · CPC title

• B22F3/1115 Primary

  comprising complex forms, e.g. honeycombs · CPC title

• B01D2252/204

  Amines · CPC title