Diesel engine white smoke control system
US5014509A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1989 |
| Grant date | May 14, 1991 |
| Priority date | — |
| Expiry date | Dec 27, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A system for reducing the emission of condensed unburned fuel from diesel engines is disclosed. The system includes an exhaust gas flow passage having a particulate filter positioned therein for trapping particulate matter entrained within the exhaust gas and a burner for selectively elevating the exhaust gas temperature. Sensors are provided for continuously monitoring the ambient air temperature and the exhaust gas temperature and relaying values indicative of these temperatures to a control module. The control module in turn compares these determined values to predetermined minimal values. If both the ambient air temperature and the exhaust gas temperature are less than the predetermined minimal values, the control module will activate the burner in order to raise the exiting exhaust gas temperature to reduce the emission of condensed unburned fuel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.