Gas treatment device
First Claim
Patent Images
1. A gas treatment device, comprising:
- a catalyst substrate comprising a catalyst;
a shell concentrically disposed around said catalyst substrate;
a mat support material disposed between said catalyst substrate and said shell, and concentrically around said catalyst substrate;
a retainer ring comprising a first wall and a second wall connected by a bridge, said retainer ring concentrically disposed around said catalyst substrate and in operable communication with said shell to form an interference fit; and
said retainer ring contacts said mat support material.
1 Assignment
0 Petitions
Accused Products
Abstract
The gas treatment device comprises a shell concentrically disposed around a catalyst substrate comprising a catalyst, and a mat support material disposed between the catalyst substrate and shell, and concentrically around the catalyst substrate. A retainer ring comprising a first wall and a second wall connected by a bridge is concentrically disposed around the catalyst substrate. The retainer ring is in operable communication with the shell to form an interference fit, and also contacts the mat support material. The retainer ring can further comprise at least two segments.
23 Citations
27 Claims
-
1. A gas treatment device, comprising:
-
a catalyst substrate comprising a catalyst;
a shell concentrically disposed around said catalyst substrate;
a mat support material disposed between said catalyst substrate and said shell, and concentrically around said catalyst substrate;
a retainer ring comprising a first wall and a second wall connected by a bridge, said retainer ring concentrically disposed around said catalyst substrate and in operable communication with said shell to form an interference fit; and
said retainer ring contacts said mat support material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20, 21, 22, 23, 25, 27)
-
-
14. A method of manufacturing a gas treatment device, comprising:
-
disposing a catalyst substrate comprising a catalyst concentrically within a shell;
disposing said mat support material concentrically said catalyst substrate;
disposing a retainer ring in operable communication with said shell to form an interference fit therewith, wherein said retainer ring comprises a first wall that contacts said mat support material, a second wall disposed on a side of said shell opposite said catalyst substrate, and a bridge connecting said first wall and said second wall;
forming an interference fit between said shell and said retainer ring; and
contacting said mat support material with said retainer ring.
-
-
24. A gas treatment device, comprising:
-
a catalyst substrate comprising a catalyst;
a shell concentrically disposed around said catalyst substrate;
a mat support material disposed between said catalyst substrate and said shell, and concentrically around said catalyst substrate;
a retainer ring comprising a first wall and a second wall connected therein by a bridge having a plurality of apertures, said retainer ring concentrically disposed around said catalyst substrate, wherein an outer surface of said shell is in contact with an inner surface of said second wall, an end of said shell is in contact with said bridge, and said first wall contacts said mat support material; and
an exhaust system component disposed in operable communication with said shell and said retainer ring.
-
-
26. A gas treatment device, comprising:
-
means for catalytically treating gas comprising a shell concentrically disposed about a catalyst substrate comprising a catalyst, and a mat support material disposed between said shell and said catalyst substrate, and around said catalyst substrate; and
means for reducing erosion of said mat support material comprising a retainer ring comprising a first wall and a second wall connected by a bridge, wherein said retainer ring is concentrically disposed around said catalyst substrate, in contact with said mat support material, and in operable communication with said shell to form an interference fit.
-
Specification