Apparatus for controlling the electric heating of catalyst

Details Apparatus for controlling the electric heating of catalyst Apparatus for controlling the electric heating of catalyst

1993-01-28

1995-02-21

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

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

60300, F01N 328

Patent

active

053904931

ABSTRACT:
A catalyst heating control device for cleaning automotive engine exhaust gases, comprising a generator, at least one battery, a catalyst heating control apparatus, a battery charging device and an electronic fuel injector. Before starting the engine, the catalyst is preheated. At the start of the engine, the catalyst preheat control is curtailed according to the state of the batteries. The catalyst current control is performed by detecting the catalyst activation temperature. The catalyst is heated usually to about 350.degree. C., at which point the current supply for heating is terminated.

REFERENCES:
patent: 5094198 (1992-03-01), Trotta
patent: 5163290 (1992-11-01), Kinnear
patent: 5191763 (1993-03-01), Yuuki
patent: 5257501 (1993-11-01), Wataya

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