Catalyst heater with staged exhaust exotherm
US5570576A · kind A · utility
29Cited by
10References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 5, 1994 |
| Grant date | Nov 5, 1996 |
| Priority date | — |
| Expiry date | Jul 5, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Internal combustion engine exhaust gas is combined with heat energy emitted by an exhaust gas heater in a staged manner through an interface that diverts portions of the exhaust gas into a number of mixing stages with the heat energy, so that exhaust gas temperature may be elevated to levels supporting exothermic oxidation of exhaust gas elements, contributing additional heat energy to that emitted by the heater to provide for rapid catalytic converter heating following a coldstart of the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.