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Exhaust gas manifold of an exhaust system for an internal combustion engine

  • US 6,959,543 B2
  • Filed: 08/30/2002
  • Issued: 11/01/2005
  • Est. Priority Date: 09/01/2001
  • Status: Expired due to Fees
First Claim
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1. An exhaust gas manifold of an exhaust system for an internal combustion engine, the manifold comprising:

  • a diverging pipe elbow; and

    exhaust pipes each having an end and being connected to the diverging pipe elbow, wherein the ends of the exhaust pipes extend substantially unidirectionally into the pipe elbow, wherein sections of the exhaust pipes adjacent to the ends are joined and together form a circular cross section, and wherein portions of the exhaust pipes adjacent to the joined sections are separated from each other with a gap, wherein the pipe elbow includes an external pipe and an internal pipe disposed within the external pipe and spaced apart from the external pipe, and wherein the pipe elbow includes a wire mesh ring disposed between the external pipe and the internal pipe near the end of the pipe elbow.

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