Apparatus and method for injection of a fluid for an exhaust gases treatment device
US8359834B2 · kind B2 · utility
4Cited by
0References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2007 |
| Grant date | Jan 29, 2013 |
| Priority date | — |
| Expiry date | Jan 17, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/51
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An apparatus is provided for injection of a fluid for an exhaust gases treatment device of an internal combustion engine arrangement. The apparatus includes a fluid injector fed from a source of fluid under pressure through a fluid conduit, a feed valve in the fluid conduit between the source of fluid the said injector, a purge system including a gas conduit connecting a source of pressurized gas to the fluid conduit, a pressure limiter within the gas conduit, and a check valve downstream of the pressure limiter. The pressure limited by the pressure limiter is lower than the pressure of fluid delivered by the source of fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.