Catalyst for automotive emissions control
US11583834B2 · kind B2 · utility
2Cited by
25References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2017 |
| Grant date | Feb 21, 2023 |
| Priority date | — |
| Expiry date | Nov 16, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An automotive catalytic converter includes a three-way catalyst having Rh as the only precious metal configured as a front zone and a three-way catalyst having a mixture of Rh and Pd, Pt, or both configured as a rear zone, such that an exhaust gas from an internal combustion engine passes through the front zone before passing through the rear zone to minimize sulfur poisoning of the catalytic converter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.