The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 12, 2009
Filed:
May. 12, 2006
Jun Okumura, Nisshin, JP;
Tomohiro Iida, Nagoya, JP;
Jun Okumura, Nisshin, JP;
Tomohiro Iida, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
There is disclosed a honeycomb structure which is useful as a trapping filter for an exhaust gas, above all a diesel particulate filter (DPF) for trapping particulate matters (particulates) in an exhaust gas from a diesel engine and in which internal and external temperature rises are uniformed during use and during regeneration and in which there are effectively prevented generation of defects such as cracks due to a thermal stress and generation of an adverse influence on a carried catalyst. A honeycomb structureincludes: a bonded honeycomb segment articlein which bond surfaces of a plurality of honeycomb segmentsare integrally bonded to one another via bonding material layers; and an outer peripheral coating layerwhich coats an outer peripheral surface of the bonded honeycomb segment article. The honeycomb structure has a structure in which a plurality of cellsforming fluid channels are arranged in parallel with one another in a central axis direction. The honeycomb segmentsare bonded via the bonding material layers (partial bonding material layers)disposed only in predetermined portions of the honeycomb segments