Method of reducing the emission of toxic exhaust gas components

Details Method of reducing the emission of toxic exhaust gas components Method of reducing the emission of toxic exhaust gas components

1991-09-20

1993-02-09

Dolinar, Andrew M.

Power plants

Internal combustion engine with treatment or handling of...

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

1231791, 12317916, 123339, 123362, 123424, F01N 320

Patent

active

051844630

ABSTRACT:
The invention is directed to a method wherein measures are initiated for accelerating the warm-up of the catalyzer even for a warm engine such as after a warm start thereof. In this way and when there is an interruption of operation, the cooling off of the engine and the catalyzer, which takes place at different rates, and the effect thereof on the conversion rate is opposed. As a consequence thereof, the emission of unwanted exhaust-gas components after a warm start is reduced.

REFERENCES:
patent: 3813877 (1974-06-01), Hunt
patent: 4144853 (1979-03-01), Maruoka et al.
patent: 4224913 (1980-09-01), Barnard
patent: 4351297 (1982-09-01), Suematsu
patent: 4703733 (1987-11-01), Fukutomi et al.
patent: 4951633 (1990-08-01), Achleitner et al.
"Die Abgasreinigung der neuen Mercedes-Benz 300 SL-24 und 500 SL-Aufbau und Wirkungsweise" by W. Zahn et al. in MTZ 50 (1989), vol. 6, pp. 247 to 254.
"Einspritz-und Zundsysteme der neuen Merceds-Benz Vierventilmotoren fur den SL-Roadster" by W. Strauss et al. in MTZ 50 (1989), vol. 7/8, pp. 333 to 336.

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