Device for introducing a liquid reducing agent into an exhaust gas purification system
US6273120A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 2000 |
| Grant date | Aug 14, 2001 |
| Priority date | — |
| Expiry date | May 12, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2514
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A device for introducing a liquid reducing agent into an exhaust gas purification system includes a gas line for receiving and carrying a gas, a reducing agent line for receiving and carrying a liquid reducing agent, a mixing chamber for mixing the reducing agent with the gas, the mixing chamber fluidically connected to the gas line and to the aid reducing agent line, a metering valve disposed in the reducing agent line; and a control device for controlling a pressure in the reducing agent line dependent upon a gas pressure in the gas line. The control device can also be used for controlling the reducing agent throughput in the reducing agent line in dependence on the gas pressure in the gas line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.