Exhaust gas purifying apparatus for internal combustion engine
US6128898A · kind A · utility
9Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 1998 |
| Grant date | Oct 10, 2000 |
| Priority date | — |
| Expiry date | Nov 10, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Disclosed is a technology of diagnosing an exhaust gas purifying apparatus about a fault in its temperature control function of controlling a temperature of an exhaust gas purifying catalyst. The exhaust gas purifying apparatus for an internal combustion engine includes the exhaust gas purifying catalyst, and a temperature control means for controlling the temperature of this exhaust gas purifying catalyst. The exhaust gas purifying apparatus is judged to be faulted, wherein at least one of a state of the temperature control means and a state of the exhaust gas purifying catalyst serves as a parameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.