Catalytic converter for use in controlling automotive exhaust em

Details Catalytic converter for use in controlling automotive exhaust em Catalytic converter for use in controlling automotive exhaust em

1990-09-14

1993-11-23

Housel, James C.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

422174, 422180, 422190, 422196, 60300, 219552, 55DIG30, B01D 5336, F01N 328

Patent

active

052641864

ABSTRACT:
The catalytic converter includes a first flow passage for an automotive exhaust gas and a second flow passage disposed parallel to the first flow passage to bypass the exhaust gas therethrough. The first flow passage contains a honeycomb heater or a heater catalyst which comprises a honeycomb heater with a catalyst carried thereon. At the beginning of an operation of any engine, the exhaust gas whose temperature is low is caused to flow through the first flow passage. When the temperature of the exhaust gas exceeds a predetermined value, the flow passage is switched from the first passage to the second flow passage.

REFERENCES:
patent: 3755204 (1973-08-01), Sergeys
patent: 3768982 (1973-10-01), Kitzner et al.
patent: 3770389 (1973-10-01), Kitzner et al.
patent: 3925252 (1975-12-01), Yabuta et al.
patent: 3956614 (1976-05-01), Hervert
patent: 4023360 (1977-05-01), Wossner et al.
patent: 4976929 (1990-12-01), Cornelison et al.
patent: 5063029 (1991-11-01), Mizuno et al.

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