Apparatus for purifying engine exhaust gas

Details Apparatus for purifying engine exhaust gas Apparatus for purifying engine exhaust gas

1993-07-21

1995-06-20

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

60284, F01N 330

Patent

active

054252350

ABSTRACT:
The air introducing means comprising air pump for introducing air into exhaust pipe and heating device for heating the introduced air are provided. Both an air pump for introducing air into exhaust pipe and a heating device for heating the introduced air are provided. Heating device is connected to the control unit which causes it to stop heating when the temperature of the water for cooling engine exceeds a preset temperature. Idle rotation regulator for keeping the rotational speed of the engine at a level higher than the idling speed is also provided. Further provided is a control unit that actuates the idle rotation regulator when the engine is brought to idling while the heating device performs heating. If the rotational speed of the engine is increased while it is running at idle, more power is generated by dynamo to make up for the power consumption by the heating device.

REFERENCES:
patent: 2937490 (1960-05-01), Calvert
patent: 3776205 (1973-12-01), Maruoka
patent: 3779015 (1973-12-01), Maruoka
patent: 3963444 (1976-06-01), Yamada
patent: 4098078 (1978-07-01), Laurent

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