Honeycomb structural body and exhaust gas treating apparatus

Details Honeycomb structural body and exhaust gas treating apparatus Honeycomb structural body and exhaust gas treating apparatus

2007-10-18

2010-10-12

Marcheschi, Michael A (Department: 1797)

Gas separation

Specific media material

Ceramic or sintered

C055S524000, C055S529000, C055SDIG030, C422S177000, C422S180000, C428S116000

Reexamination Certificate

active

07811351

ABSTRACT:
A pillar-shaped honeycomb structural body includes a first end face and a second end face substantially parallel to each other; and a peripheral surface connecting the first end face and the second end face. The first end face and the second end face have similar peripheral shapes. A taper rate P satisfies 0<P≦ approximately 4%, the taper rate P being expressed by the formula (1), taper rate P(%)=(D1−D2)/(2L)×100, wherein the maximum width of the first end face is D1, the maximum width of the second end face is D2, and the distance between the first end face and the second end face is L.

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