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Exhaust gas pipe with catalyst carrier body exposed to a helical flow

  • US 5,144,797 A
  • Filed: 12/24/1990
  • Issued: 09/08/1992
  • Est. Priority Date: 12/22/1989
  • Status: Expired due to Term
First Claim
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1. Exhaust gas pipe, comprising a plurality of segments forming at least one angular bend, said segments including a first segment having a given diameter, an adaptor communicating with said first segment, a second segment communicating with said adaptor and having a diameter larger than said given diameter, and a honeycomb body being disposed directly downstream of said adaptor and having a side with an end surface facing towards an exhaust gas flow, said adaptor having a shape forcing exhaust gas to approach said end surface in a curved path having a curvature and pitch reducing contact between exhaust gas having already been deflected and exhaust gas newly flowing into said adaptor.

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