Exhaust gas purifying filter using honeycomb monolith with random length sealing portions
US5720787A · kind A · utility
35Cited by
7References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 1996 |
| Grant date | Feb 24, 1998 |
| Priority date | — |
| Expiry date | Apr 8, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An exhaust gas purifying filter for removing carbon particles from combustion exhaust gas, having a honeycomb structural body, flow passages that are sealed alternately at both ends by means of sealing portions to form checkerboard patterns. In the exhaust gas purifying filter according to the invention, lengths of the sealing portions formed in the flow passages of the honeycomb structural body vary randomly. An exhaust gas purifying apparatus utilizing the exhaust gas purifying filter according to the invention is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.