Corrugated wall honeycomb structure and production method thereof

Abstract

The corrugated-wall honeycomb structure (1) has a plurality of pore channels (2) whose channel directions are parallel to each other, wherein, on a cross section perpendicular to the pore channels (2), the walls (3) separating the pore channels (2) The intersecting parts (4) are formed between them so that their positions are kept at a predetermined distance synchronously, and except for the intersecting parts (4), the wall part (5) of the wall (3) is in the direction of the hole channel and perpendicular to the direction of the hole channel The corrugated shape is formed in the direction of the cross section of the utility model, thereby improving the exhaust emission control performance, the catalyst performance, the mechanical strength of the casing seal, and the thermal shock resistance performance.

Description

technical field [0001] The invention relates to a corrugated-wall honeycomb structure, which is used as a catalyst carrier for exhaust gas purification of internal combustion engines or a catalyst carrier for vehicle exhaust gas deodorization, etc., as a filter layer of various types of filter devices, as a heat exchanger component, or as a chemical The carrier of the reactor, such as the modified catalyst carrier of the fuel cell, etc. technical background [0002] The honeycomb structure is widely used as a catalyst carrier for purification of exhaust gas of an internal combustion engine or a catalyst carrier for deodorization of exhaust gas of a vehicle, and the like. Conventionally, for such a honeycomb structure, for example, in the case of being used as a vehicle exhaust gas purification catalyst carrier, the walls separating the passages of the cells are conventionally formed into a flat shape to reduce pressure loss. [0003] However, in rece...

AI Technical Summary

Problems solved by technology

Therefore, the flow of the fluid in the hole channel easily becomes a steady flow, so there is a problem that it is difficult to further increase the contact between the fluid flowing through the hole channel and the wall surface

In addition, for purposes other than the above-mentioned exhaust gas purification, for example, for gas reformation and the like as a honeycomb member used as a chemical reaction catalyst carrier, the pressure loss therein is not a great hindrance during use

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