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AssigneeNGK Insulators, Ltd.
InventorsTakuya HIRAMATSU, Kenji MORIMOTO
Estimating the term…
A honeycomb structure which effectively prevents generation of defects such as cracks by thermal stress during use and regeneration and has excellent durability is provided. In a honeycomb structure 1 in which honeycomb segments 2 having part of the whole shape of the honeycomb structure are bonded integrally by means of a bonding material 9, the honeycomb structure includes inner partition walls 6 having a number of first pores and arranged so as to form a plurality of cells 5 serving as flow channels for exhaust gas between two end faces through processing of the outer circumference of the bonded body into a predetermined shape, outer circumferential wall 8 having a number of second pores and arranged so as to surround the inner partition walls 6, and internal partition wall internal partition walls of the segments contacting to the outer circumferential wall) 11 having a number of third pores and contacting with a processed outer circumferential surface becoming an outermost circumference through processing of an outer circumferential portion. A filling composition containing particles of a particle size capable of coming into the second pores and a binder capable of binding particles and the insides of the second pores of the outer circumferential wall 8 and/or binding particles is disposed inside the second pores of the outer circumferential wall 8, and/or a filling composition containing particles of a particle size capable of coming into the third pores and a binder capable of binding particles and the insides of the third pores of the internal partition walls of the segments contacting to the outer circumferential wall 11 and/or binding particles is disposed inside the third pores of the outer circumferential wall 4.
1-41. (canceled)
A honeycomb segment having a part of a whole shape constituting a honeycomb structure having a plurality of cells serving as flow channels for exhaust gas formed between its two end faces, the honeycomb segment being capable of forming a honeycomb structure by integrally bonded with a bonding material, the segment having inner partition walls which define cells and contain a number of first pores therein, and an outer circumferential wall containing a number of second pores therein and being provided so as to surround the inner partition walls,
A honeycomb structure being formed by bonding integrally honeycomb segments each of which has a part of a whole shape constituting a honeycomb structure by means of a bonding material and of which an outer circumference of the bonded body is processed into a predetermined shape, the honeycomb structure comprising inner partition walls containing a number of first pores and defining a plurality of cells serving as flow channels for exhaust gas between two end faces, an outer circumferential wall having a number of second pores and surrounding the inner partition walls, and an internal partition wall having a number of third pores and contacting with a processed outer circumferential surface becoming an outermost circumference through processing of an outer circumferential portion,
Dependencies are inferred from the claim text.