Additive-agent diffusion plate in exhaust passage, structure of additive-agent diffusion plate, and exhaust system including additive-agent diffusion plate
US8443595B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2008 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | Mar 21, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a structure of an additive-agent diffusion plate in an exhaust passage, the exhaust passage is an exhaust passage for an engine. The additive-agent diffusion plate includes a plurality of collision portions; and a plurality of communication portions that allow exhaust gas flowing in the exhaust passage to flow from an area upstream of the additive-agent diffusion plate to an area downstream of the additive-agent diffusion plate in an exhaust-gas flow direction. The additive-agent diffusion plate diffuses an additive agent injected into the exhaust passage, at a position upstream of an exhaust gas purification device, which is disposed in the exhaust passage, in the exhaust-gas flow direction. Each of the collision portions protrudes toward an upstream side in the exhaust-gas flow direction, and a cross section of each of the collision portions increases from the upstream side toward a downstream side of the exhaust-gas flow direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.