Diesel engine white smoke control system

Details Diesel engine white smoke control system Diesel engine white smoke control system

1989-12-27

1991-05-14

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Methods

55283, 60286, 60288, F01N 302

Patent

active

050145096

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.

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patent: 4544388 (1985-10-01), Rao et al.
patent: 4655037 (1987-04-01), Rao
patent: 4665690 (1987-05-01), Nomoto

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