Catalyst support structure

Details Catalyst support structure Catalyst support structure

2011-08-09

2011-08-09

Warden, Jill (Department: 1773)

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

C440S08900C

Reexamination Certificate

active

07993597

ABSTRACT:
A catalyst for purifying an exhaust gas can include a carrier having a honeycomb structure, an outer pipe for covering a part of the carrier, and a brazing foil for joining the outer peripheral surface of the carrier and the inner peripheral surface of the outer pipe on the downstream side of the catalyst. The catalyst can be fixed to a support flange such that an axial direction of the catalyst coincides with the direction in which an exhaust gas flows through an exhaust pipe. An upstream end of the brazing foil can be aligned with the upstream end of a catalyst fixing part of the support flange. An upstream end of the catalyst fixing part can be positioned upstream of the axial middle of the carrier. The brazing foil can be provided in a portion from the upstream end of the catalyst fixing part to the downstream side of the carrier. The catalyst can be supported at its generally middle part by the support flange. An upstream end of the outer pipe can be aligned with the upstream end of the catalyst fixing part.

REFERENCES:
patent: 4948353 (1990-08-01), Maus et al.
patent: 6673466 (2004-01-01), Bruck et al.
patent: 7241427 (2007-07-01), Nagel et al.
patent: 2003/0162451 (2003-08-01), Ozawa
patent: 03-157139 (1991-07-01), None

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