Honeycomb structure, and honeycomb filter and converter system both using the same
US7056365B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2002 |
| Grant date | Jun 6, 2006 |
| Priority date | — |
| Expiry date | Jan 3, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24744
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A honeycomb structure in which a plurality of through-holes 3 extending in the axial direction are formed by a plurality of partition walls 1 and 2, wherein the plurality of partition walls 1 and 2 are constituted by a plurality of partition walls having different thicknesses and, of the plurality of partition walls having different thicknesses, those partition walls 2 having a thickness larger than the average thickness of all partition walls are provided at a higher proportion in a particular portion of the honeycomb structure whole portion having partition walls than in other portion. This honeycomb structure, and a honeycomb filter and a converter system both using the honeycomb structure satisfy recent years' requirements of improvement in warm-up property connected with purification ability and reduction in harmful substance emitted right after engine start, and yet have a sufficient mechanical strength to external pressure, a high erosion resistance and a high thermal shock resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.