Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
Patent
1992-02-21
1992-12-01
Brown, David H.
Power plants
Internal combustion engine with treatment or handling of...
By means producing a chemical reaction of a component of the...
60299, 123 2, 12317921, F01N 328, F01N 900
Patent
active
H00011134
ABSTRACT:
A catalyst heating apparatus includes an electrically heated catalyst converter mounted in an exhaust passage of an internal combustion engine, the catalyst converter having a catalyst and a heating element for electrically heating the catalyst so that catalytic conversion of exhaust gases from the engine is carried out, a capacitor that is charged with electric power, in advance, before an ignition switch is turned on for starting operation of the engine, and a controller for applying a terminal voltage of the capacitor to the heating element of the catalyst converter when the ignition switch is turned on, so that a temperature of the heating element is increased owing to electric energy supplied from the capacitor to the converter through the controller for accelerating the rate of the catalytic conversion of the exhaust gases.
REFERENCES:
patent: 4102127 (1978-07-01), Saiki et al.
patent: 4274132 (1981-06-01), Molyneux-Berry
patent: 4928485 (1990-05-01), Whittenberger
patent: 5050545 (1991-09-01), Shirata et al.
patent: 5105776 (1992-04-01), Tsuchiya et al.
SAE Technical Paper Series No. 900503.
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