Additively manufactured carbon dioxide scrubber

Patent metadata

Field	Value
Publication number	US-2019299292-A1
Application number	US-201815938865-A
Country	US
Kind code	A1
Filing date	Mar 28, 2018
Priority date	Mar 28, 2018
Publication date	Oct 3, 2019
Grant date	—

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, wherein nodes are formed at intersections of the 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.

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 the channel is hollow.

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

6 . A metal lattice for a carbon dioxide scrubber, comprising:
a metal lattice body defining a plurality of intersecting ligaments, wherein nodes are formed at intersections of the plurality of intersecting ligaments; and wherein a node density of the metal lattice body varies.

7 . The metal lattice of claim 6 , wherein the metal lattice is formed by an additive manufacturing process comprising one of a powder bed fusion process and a directed energy deposition process.

8 . The metal lattice of claim 7 , wherein the additive manufacturing process is a laser powder bed fusion process.

9 . The metal lattice of claim 6 , 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.

10 . The metal lattice of claim 9 , wherein the first node density is different from the second node density.

11 . The metal lattice of claim 6 , wherein a thickness of each the plurality of intersecting ligaments is constant.

12 . The metal lattice of claim 6 , wherein the metal lattice is made from a metal material comprising aluminum or an aluminum alloy.

13 . The metal lattice of claim 12 , wherein the first portion defines a channel extending longitudinally through the metal lattice.

14 . A metal lattice for a carbon dioxide scrubber, comprising:
a metal lattice body defining a plurality of intersecting ligaments, wherein nodes are formed at intersections of the plurality of intersecting ligaments; and wherein a ligament thickness of the metal lattice body varies along at least one of a longitudinal direction or a transverse direction.

15 . The metal lattice of claim 14 , wherein the metal lattice is formed by an additive manufacturing process comprising one of a powder bed fusion process and a directed energy deposition process.

16 . The metal lattice of claim 15 , wherein the additive manufacturing process is a laser powder bed fusion process.

17 . The metal lattice of claim 14 , 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.

18 . The metal lattice of claim 17 , 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.

20 . The metal lattice of claim 14 , wherein the first portion defines a channel extending longitudinally through the metal lattice.

Assignees

• Hamilton Sundstrand Corp

Inventors

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

Classifications

• B22F10/28

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

• B22F3/1115 Primary

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

• B01D53/1475 Primary

  Removing carbon dioxide · CPC title

• B22F10/25

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

• B33Y80/00

  Products made by additive manufacturing · CPC title