Article of manufacture for securing a catalyst substrate

Patent metadata

Field	Value
Publication number	US-9764282-B2
Application number	US-201414769698-A
Country	US
Kind code	B2
Filing date	Feb 24, 2014
Priority date	Feb 27, 2013
Publication date	Sep 19, 2017
Grant date	Sep 19, 2017

Abstract

An aftertreatment component for use in an exhaust aftertreatment system. The aftertreatment component comprises an aftertreatment substrate and a compressible material. The compressible material may be formed from a plastic thermoset, a rubberized material, or a metal foil which permits for the selective expansion of the substrate within the compressible material, while also reducing cost and manufacturing complexity. In various embodiments, the aftertreatment substrate and the compressible materials may be formed separately and coupled to each other, or they may be formed concurrently via coextrusion.

First claim

What is claimed is:

1. An aftertreatment component of an exhaust aftertreatment system, comprising:
an aftertreatment substrate;
a compressible material formed from a plastic thermoset, the compressible material coupled to an outer surface of the aftertreatment substrate; and
a catalyst washcoat disposed on the aftertreatment substrate, wherein the catalyst washcoat is applied to the aftertreatment substrate after the compressible material is coupled to the aftertreatment substrate.

2. The aftertreatment component of claim 1 , further comprising a catalyst washcoat disposed on the aftertreatment substrate.

3. The aftertreatment component of claim 2 , wherein the catalyst washcoat is disposed on a substrate side of the compressible material.

4. The aftertreatment component of claim 1 , further comprising an outer skin, the outer skin defining the compressible material.

5. The aftertreatment component of claim 4 , wherein the outer skin at least partially compresses the compressible material against the aftertreatment substrate.

6. The aftertreatment component of claim 5 , wherein the outer skin applies a selected closure force to the aftertreatment substrate through the compressible material.

7. The aftertreatment component of claim 1 , wherein the compressible material is in tension, and wherein the compressible material is at least partially compressed.

8. The aftertreatment component of claim 7 , wherein the compressible material applies a selected closure force to the aftertreatment substrate.

9. The aftertreatment component of claim 1 , wherein the aftertreatment substrate and the compressible material are concurrently formed and coupled together via coextrusion.

Assignees

• Cummins Emission Solutions Inc

Inventors

• Anderson Matthew
• Somogyvari Arpad

Classifications

• B01J31/06

  containing polymers {(organometallic polymers B01J31/123; polymer-bound organometallic complexes B01J31/165; coordination polymers B01J31/1691)} · CPC title

• B01J37/0217

  Pretreatment of the substrate before coating · CPC title

• B32B15/08

  of synthetic resin · CPC title

• B01J2231/005

  General concepts, e.g. reviews, relating to methods of using catalyst systems, the concept being defined by a common method or theory, e.g. microwave heating or multiple stereoselectivity · CPC title

• F01N2330/20

  Plastics, e.g. polymers, polyester, polyurethane · CPC title