Method and system for storing an additive and injecting it into the exhaust gases of an engine
US7845164B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 13, 2005 |
| Grant date | Dec 7, 2010 |
| Priority date | — |
| Expiry date | Sep 7, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/6552
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method for storing an additive and injecting the additive into exhaust gases of an engine supplied with fuel from a fuel tank and returning unused excess hot fuel to the tank via a return line. The method heats the additive using a section of the return line when the additive temperature is below or equal to a threshold value, and short circuits the heating section when the additive temperature exceeds the threshold value. A system for implementing such a method includes an additive heating section including a section of the return line; a temperature sensor; and a device allowing the heating section to be short circuited when the temperature measured by the sensor exceeds the threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.