Electrically heated catalyst for a compression ignition engine
US9643160B2 · kind B2 · utility
2Cited by
37References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2014 |
| Grant date | May 9, 2017 |
| Priority date | — |
| Expiry date | Sep 18, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An emissions control device for a compression ignition engine is described. The emissions control device comprises: (a) a first catalyst comprising an electrically heatable substrate and a first composition disposed on the electrically heatable substrate, wherein the first composition comprises alumina and a first platinum group metal (PGM); and (b) a second catalyst comprising a substrate and a second composition disposed on the substrate, wherein the second composition comprises alumina and a second platinum group metal (PGM); wherein the loading of the first composition is less than the loading of the second composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.