Catalytic converter for vehicle exhaust
US6464947B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 23, 1999 |
| Grant date | Oct 15, 2002 |
| Priority date | — |
| Expiry date | Feb 23, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/20
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A catalytic converter for an exhaust system of a motor vehicle comprising a housing having an inlet and an outlet; a first brick positioned inside the housing adjacent the inlet for initiating catalytic light-off functions of exhaust gases flowing through the first brick; a second brick positioned adjacent the first brick downstream of the inlet for three way conversion of exhaust gases flowing through the second brick; a third brick positioned adjacent the second brick downstream of the inlet for hydrocarbon adsorption and oxidation of exhaust gases flowing through the third brick; and a fourth brick positioned adjacent and spaced from the third brick downstream of the inlet for light-off of exhaust gases flowing through the fourth brick; wherein the third brick is substantially annular with a through bore extending axially therethrough; and wherein the second brick has a closed bore extending axially and opening into the through bore of the third brick.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.