Method and device for removing soot from exhaust gases
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United States of America Patent
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Mar 13, 1984
Grant Date -
N/A
app pub date -
Mar 22, 1982
filing date -
Mar 21, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
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.
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