Systems and methods for mixing exhaust gases and reductant in an aftertreatment system
US10632430B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2019 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Jun 14, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A vane swirl mixer for exhaust aftertreatment includes: a vane swirl mixer inlet; a vane swirl mixer outlet; a first flow device including: a Venturi body; a plurality of upstream vanes positioned within the Venturi body; a plurality of upstream vane apertures interspaced between the plurality of upstream vanes; a plurality of downstream vanes positioned within the Venturi body; and a plurality of downstream vane apertures interspaced between the plurality of downstream vanes. At least one of the upstream vane hub and the downstream vane hub is radially offset from a Venturi center axis, thereby causing individual ones of the plurality of vanes coupled to the radially offset vane hub to differ in their geometry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.