Electrically heated catalytic converter

Details Electrically heated catalytic converter Electrically heated catalytic converter

1995-06-07

1996-12-17

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

422180, 422199, 422222, 60300, 502439, 502527, 55DIG30, F01N 310

Patent

active

055850731

ABSTRACT:
A catalytic converter with electric heating includes a housing and at least one honeycomb body being disposed in the housing for conducting a flow of exhaust gas of an internal combustion engine through the honeycomb body in a given flow direction. The honeycomb body is electrically conductive at least in partial regions upon being heated by an electric current and it has a catalytically active coating at least in partial regions. The honeycomb body has at least two electrically heatable partial regions being disposed in succession as seen in the given flow direction. The electrically heatable partial regions have a different axial length and/or a different electrical resistance. The honeycomb body also has at least one other partial region being at least substantially blocked to the electric current and separating the electrically heatable partial regions from one another.

REFERENCES:
patent: 5370943 (1994-12-01), Bruck et al.
patent: 5433926 (1995-07-01), Swars
patent: 5436216 (1995-07-01), Toyao et al.

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