Structure for electrically heatable catalytic core

Details Structure for electrically heatable catalytic core Structure for electrically heatable catalytic core

F - Mech Eng,Light,Heat,Weapons

01

N

F01N 3/28 (2006.01) F01N 3/20 (2006.01)

Patent

CA 2050733

ABSTRACT There is provided all improved electrically heatable core for an electrically heatable catalytic converter. The core is characterized by a plurality of corrugated thin metal strips secured to an electrically conductive central core or tube. Alternating with the corrugated thin metal strips are narrow strips of brazing metal in an axially staggered pattern. These strips are spirally wound and fused to braze them together in a unified monolith A retainer shell is supplied to hold the monolith together. The core is placed in a housing fitted with insulated means for conducting electric current to the monolith to effect heating. The housing is then inserted in an exhaust line where it is effective to control start-up pollution, and where the monolith is constrained against telescoping.

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