Method and a system for controlling a soot catcher purging throt

Details Method and a system for controlling a soot catcher purging throt Method and a system for controlling a soot catcher purging throt

1982-08-20

1984-08-28

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Methods

60285, 60311, 123376, 123399, 123403, F01N 302, F01N 322

Patent

active

044676018

ABSTRACT:
A diesel engine is provided with an air throttle valve fitted in its intake system, which when operated to provide throttling action decreases the air flow in the intake system of the engine and increases the temperature of the exhaust gases of the engine, in order to heat up a soot particle catcher fitted to the exhaust system which thus is purged by combusting the accumulation of soot particles in it. When the air throttle valve is thus throttling the intake system and thus raising the temperature of the exhaust gases so as to purge the soot particle catcher, the amount of throttling provided by the air throttle valve is controlled, by comparing the pressure in the intake system downstream of the air throttle valve with a certain reference pressure, so as to keep this pressure in the intake system downstream of the air throttle valve substantially the same as this reference pressure.

REFERENCES:
patent: 436355 (1943-06-01), Bonnier
patent: 3548798 (1970-12-01), Fleischer
patent: 4211075 (1980-07-01), Ludecke

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