Method and device for removing soot from exhaust gases

Patent · Tue Mar 13 00:00:00 EST 1984

OSTI ID:6497051

Erdmannsdorfer, H

A method and device for removing soot from the exhaust gases of a diesel-type internal combustion engine, using a soot filter in the exhaust line and a dosing device which injects a dose of a combustion-inducing substance, for example CuCl, into the soot filter by means of compressed air. The soot-combusting process is initiated automatically, in response to a critical exhaust pressure level and the simultaneous presence of a suitable temperature in the soot filter, using a pressure switch and a series-connected thermal switch. Compressed air, flowing through a bypass line, scavenges the supply line of the combustion-inducing substance, while supplying additional oxygen for the soot combustion process.

• Assignee: Filterwerk Mann and Hummel GmbH (Germany, Federal Republic of)
• Patent Number(s): US 4436535
• OSTI ID: 6497051
• Resource Relation: Patent Priority Date: Priority date 21 Mar 1981, Germany, Federal Republic of (F.R. Germany); Other Information: PAT-APPL-360650
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
42 ENGINEERING
DIESEL ENGINES
AIR POLLUTION ABATEMENT
FILTERS
EXHAUST GASES
FILTRATION
DESIGN
SOOT
COMPRESSED AIR
COPPER CHLORIDES
OXYGEN
PARTICULATES
SWITCHES
AIR
CHLORIDES
CHLORINE COMPOUNDS
COMPRESSED GASES
COPPER COMPOUNDS
COPPER HALIDES
ELECTRICAL EQUIPMENT
ELEMENTS
ENGINES
EQUIPMENT
FLUIDS
GASEOUS WASTES
GASES
HALIDES
HALOGEN COMPOUNDS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
NONMETALS
PARTICLES
POLLUTION ABATEMENT
SEPARATION PROCESSES
TRANSITION ELEMENT COMPOUNDS
WASTES
330102* - Internal Combustion Engines- Diesel
330705 - Emission Control- Particulates
424000 - Engineering- Pollution Control Equipment- (1980-1989)