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GASOLINE ENGINE EMISSIONS TREATMENT SYSTEMS HAVING PARTICULATE TRAPS

  • US 20090193796A1
  • Filed: 02/04/2009
  • Published: 08/06/2009
  • Est. Priority Date: 02/05/2008
  • Status: Active Grant
First Claim
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1. An emission treatment system downstream of a gasoline direct injection engine for treatment of an exhaust system comprising hydrocarbons, carbon monoxide, nitrogen oxides, and particulates, the emission treatment system comprising a catalyzed particulate trap comprising a three-way conversion (TWC) catalyst coated onto or within a particulate trap.

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