×

Method of treating diesel exhaust gases

  • US 6,813,884 B2
  • Filed: 01/29/2002
  • Issued: 11/09/2004
  • Est. Priority Date: 01/29/2002
  • Status: Active Grant
First Claim
Patent Images

1. A diesel exhaust gas treatment system comprising:

  • an oxidation catalyst positioned in an exhaust gas passage of a diesel engine for converting at least a portion of NO contained in said exhaust gas to NO2 at a temperature between about 175°

    C. to 250°

    C., said oxidation catalyst comprising platinum and a support material comprising zirconia-silica, said support material having strong acid sites; and

    a particulate filter for receiving said exhaust gas.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×