Method of making a particulate filter carry a catalyst
US10071369B2 · kind B2 · utility
1Cited by
1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 11, 2015 |
| Grant date | Sep 11, 2018 |
| Priority date | — |
| Expiry date | May 11, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2330/60
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A gel which contains a component of a catalyst is prepared. The gel and another gel are arranged in layers at a position which faces open ends of exhaust flow passages of a wall flow-type particulate filter. Next, a pusher is used to push and pack the gel and other gel through the open ends to the insides of the exhaust flow passages. Next, the particulate filter is made to dry to thereby make the partition walls carry the catalyst on their surfaces or in their micropores.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.