Electric heating – Heating devices – With power supply and voltage or current regulation or...
Patent
1994-09-02
1997-07-08
Paschall, Mark H.
Electric heating
Heating devices
With power supply and voltage or current regulation or...
219202, 219205, 219506, 219519, 219508, 123434, 12317928, 322 7, 60300, H05B 102
Patent
active
056457456
ABSTRACT:
In an engine exhaust system including a DC power source, an apparatus and method for electrically heating a catalyst, the apparatus comprising a multi-phase AC alternator in electrically operable relation to the DC power source, the AC alternator rectifying the AC to DC by a diode rectifier bridge. A device for switching power supplied from the multi-phase AC alternator to the battery to the electrically heated catalyst, the relay device in electrically operable relation with the multi-phase AC alternator. An electrically heated catalyst in electrically operable relation with the switching device is also provided, the catalytic converter including a catalyst for purifying exhaust gases of the engine and a heating element for bringing the catalytic converter expediently within peak operating temperature. The invention further includes a device for energizing and de-energizing the switching device, the energizing and de-energizing device in electrically operable relation with the switching device.
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Alternator powered, electrically heated catalyst/By Paul M. Laing/Ford Motor Company/Published in Automotive Engineering/Apr. 1994.
Cleaner Starts for the Catalytic Converter/By Jim Motavalli/Published in the New York Times, Sunday, Sep. 11, 1994.
Hartwick Larry R.
Lee Anson
Pyko Jan S.
Teague Bruce H.
Calcaterra Mark P.
Chrysler Corporation
Paschall Mark H.
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