Exhaust gas treatment device and method for making the same

Details Exhaust gas treatment device and method for making the same Exhaust gas treatment device and method for making the same

2006-04-25

2006-04-25

Hopkins, Robert A. (Department: 1724)

Gas separation

Specific media material

Ceramic or sintered

C055SDIG030, C422S179000, C422S221000

Reexamination Certificate

active

07033412

ABSTRACT:
A device (10) for treatment of exhaust gases includes a housing (12); a fragile structure (18) resiliently mounted within the housing (12); and a non-intumescent mounting mat (20) disposed in a gap between the housing (12) and the fragile structure (18). The mounting mat (20) comprises melt-formed, leached glass fibers high in silica content and exerts a minimum holding pressure for holding the fragile structure (18) within the housing (12) of one of (i) at least 10 kPa after 1000 cycles of testing at a hot face temperature of 900° C., a gap bulk density of between 0.3 and 0.5 g/cm3, and a percent gap expansion of 5 percent, and (ii) at least 50 kPa after 1000 cycles of testing at a hot face temperature of 300° C., a gap bulk density of between 0.3 and 0.5 g/cm3, and a percent gap expansion of 2 percent.

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English language abstract of DE 19858025; Publication Date: Jun. 21, 2000; Applicant: Aslgawo GmbH.

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