Patent ID: 7811351
Filing Date: 2010-10-12
Classification: B01D,B01J,F01N,Y02T,Y10S,Y10T

Abstract:
1. A pillar-shaped honeycomb structural body comprising: 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, wherein: the first end face and the second end face have similar peripheral shapes; a contour of the peripheral surface is a curved line or a combination of a linear line and a curved line; a sectional area of the honeycomb structural body parallel to the first end face continuously decreases from the first end face toward the second end face; and a taper rate P satisfies 1<P ≦approximately 4%, the taper rate P being expressed by the following formula (1) where a maximum width of the first end face is D