Ngk Insulators, Inc.

Reiji Matsubara

Yoshiyuki Kasai

Koichi Ikeshima

Tetsuo Toyoshima

Tomoyuki Takagi

A bonded honeycomb segment assembly has plurality of honeycomb segments each including cell structure having plurality of cells as fluid passages partitioned by porous partition walls and provided in parallel with one another, and outer wall provided in the outer periphery of the cell structure. The outer wall of each of the plurality of honeycomb segments is bonded to one another via bonding layers. Relation of M&#x3c;Mis satisfied in which Mis compressive Young's modulus in thickness direction of the bonding layers positioned in the vicinity of gravity point in cross section of the bonded honeycomb segment assembly perpendicular to the fluid passage direction of the cells, and Mis compressive Young's modulus in the thickness direction of the bonding layers bonding the outer wall of each of the plurality of honeycomb segments positioned in the outermost periphery of the bonded honeycomb segment assembly.

Bonded honeycomb segment assembly

A honeycomb structurehaving an outer wall, partition wallsdisposed inside the outer wall, and a plurality of cellspartitioned from one another by the partition walland extending in the axial direction, each cell having a generally rectangular cross-section shape in the direction perpendicular to the axial direction. The honeycomb structureis characterized in that the honeycomb structureis provided with a reinforced parton a part of the outer wall. The honeycomb structure may exhibit excellent mechanical strength and low pressure loss.

Honeycomb structure, method of manufacturing the structure, and exhaust emission control system

A honeycomb structure according to an aspect of the present invention includes a segment part including a plurality of first honeycomb segments having a plurality of through holes passing through along an one axis; and a plurality of second honeycomb segments arranged in the periphery of the segment part having a plurality of through holes passing through along the one axis. A cross sectional area of the first honeycomb segments is smaller than the cross sectional area of the second honeycomb segments in the cross section perpendicular to the one axis.

Honeycomb structure

A ceramic honeycomb structural body comprises a plurality of open-ended cells defined by an outer peripheral wall and many cell walls, wherein cell walls constituting the irregular open-ended cells located near to the outer peripheral wall have a thickness thicker than those of the other remaining cell walls.

Growing community of inventors

Aichi-gun, Japan

Reiji Matsubara