Apparatus and system for enhancing aftertreatment regeneration
US7797932B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2007 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Apr 6, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B47/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An apparatus and system are disclosed for enhancing aftertreatment regeneration. The system includes an internal combustion engine and an exhaust manifold directing the engine exhaust to an aftertreatment system. The system may further include an exhaust gas recycle system and a turbocharger. The system further includes a fuel injector mounted on the exhaust manifold that provides fuel to assist in regenerating an aftertreatment component. The fuel injector is mounted in an apparatus also including a flow dampener, an extender, and a residence chamber. The apparatus allows the fuel to be injected in a high temperature location where it will experience residence time at temperature, and experience shear forces passing through the turbocharger. The extender allows the fuel to be injected at a place in the exhaust manifold where recycling of injected fuel into the engine is minimized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.