Integrated reductant mixer and heater apparatus for exhaust treatment systems
US10961887B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2019 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | Jul 11, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An integrated reductant mixer and heater apparatus for an exhaust treatment system is provided. The apparatus includes a housing for an exhaust stream to flow therethrough in an axial flow direction; a reductant injector configured to deliver a spray of reductant into the exhaust stream; at least one mixing fin disposed within the housing interior downstream of the reductant injector, the mixing fin having a primary deflection surface orientated parallel with, or at an acute angle relative to, the axial flow direction; a first heater element within the housing interior and extending within a first plane intersecting the axial flow direction proximate the primary deflection surface of the mixing fin; and a second heater element within the housing interior and extending within a second plane intersecting the axial flow direction proximate the primary deflection surface of the mixing fin and downstream from the first heater element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.