Catalyst for purifying exhaust gases
US6756336B2 · kind B2 · utility
21Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2002 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | May 12, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst for purifying exhaust gases exhibits not only effective purifying characteristics even in a low temperature range such as immediately after an engine starts but also high exhaust gas purifying ability. In the catalyst for purifying exhaust gases of a first aspect of the invention, HC adsorbed at low temperature are released at high temperature and the released HC are purified by a catalyst metal. This catalyst for purifying exhaust gases has an excellent advantage in purifying HC at low temperature as well as excellent exhaust gas purifying ability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.