METHOD OF PRODUCING AN INSULATED EXHAUST DEVICE
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United States of America Patent
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app pub date -
Nov 16, 2015
filing date -
Oct 20, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method for producing an exhaust gas aftertreatment or acoustic device (20) having a maximum operating temperature TMAX. The method includes the steps of (a) providing a blanket (40) of silica fiber insulation material having a weight percentage of SiO2 greater than 65%; (b) calcining the insulating material by heating the blanket (40) so that all of silica fiber insulation material is raised to a temperature T greater than TMAX (where T is less than the melting temperature of the silica fibers of the blanket); and (c) securing the blanket (40) on the device (20) after the calcining step. The blanket is encapsulated in a covering (50) prior to the calcining step whereby the blanket is batting in the covering, with the covering between the blanket and the device being a selected one of wire mesh or siliconized fiber glass.
First Claim
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Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| US | B2 | US9217357 | Oct 20, 2011 |
| CN | A | CN104039552 | Jun 28, 2012 |
| WO | A1 | WO2013058840 | Jun 28, 2012 |
International Classification(s)
- 2015 Application Filing Year
- F01N Class
- 1155 Applications Filed
- 975 Patents Issued To-Date
- 84.42 % Issued To-Date
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- F01N Class
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