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Electrically heated catalytic converter for an engine

  • US 5,744,104 A
  • Filed: 02/22/1995
  • Issued: 04/28/1998
  • Est. Priority Date: 02/25/1994
  • Status: Expired due to Term
First Claim
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1. An electrically heated catalytic converter for an engine comprising:

  • a catalyst;

    a substrate coated with said catalyst;

    a cylindrical casing connected to an exhaust gas passage of an engine, and accommodating said substrate therein;

    an electric heater disposed in said casing for heating said substrate;

    a rod electrode having a first end and a second end, said first end of the rod electrode being connected to said electric heater, said rod electrode extending from said electric heater and penetrating a wall of said casing disposed adjacent to said second end of said rod electrode, wherein, at least a portion of said rod electrode including said second end is formed as a hollow pipe having a hollow space therein and wherein an intermediate part of the hollow pipe portion extending within said casing is squeezed so that opposite sides of the hollow pipe portion are brought into contact with one another to seal the hollow space inside the intermediate part and wherein the squeezed part of the hollow pipe portion is separated from the first and second ends of the rod electrode; and

    an electric supply cable inserted and fit into said hollow pipe portion of the rod electrode at said second end thereof.

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