Electrically heatable honeycomb body, in particular catalyst car

Details Electrically heatable honeycomb body, in particular catalyst car Electrically heatable honeycomb body, in particular catalyst car

1993-02-01

1995-05-02

McMahon, Timothy M.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

60300, 422174, F01N 326

Patent

active

054117119

ABSTRACT:
A honeycomb body includes an interior, two end surfaces, cross-sectional regions and a cross-sectional plane. At least partly structured sheet metal layers form a multiplicity of channels through which a fluid can flow. The channels extend from one of the end surfaces to the other. An insulating device subdivides the honeycomb body and extends from one of the end surfaces to the other for reducing electrical conductivity of the honeycomb body in each of the cross-sectional regions and developing at least one wound, electrically cohering conductive current path extending in the cross-sectional plane. Primarily metal support structures extend at least partly in the interior of the honeycomb body and retain the sheet metal layers. The insulating device may be at least one planar gap and the support structures may be stabilizers of the at least one planar gap extending at least intermittently parallel to the at least one planar gap, and/or the insulating device may be electrically insulating layers and the support structures may be carriers of the electrically insulating layers extending inside the electrically insulating layers.

REFERENCES:
patent: 4928485 (1990-05-01), Whittenberger
patent: 5140812 (1992-08-01), Cornelison et al.
patent: 5149508 (1992-09-01), Bullock

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