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Multi-functional Catalyzed Soot Filters

The CS4F (multi-functional catalyzed soot filter) with a LNT is a solution to meet strict Euro6 emission regulations. Compared to a LNT+CSF+UF-SCR (Under Floor Selective Catalytic Reduction) system, the LNT+CS4F system can eliminate one catalytic component, resulting in lower system weight, space and complexity.

The combination of newly developed materials, high utilization of precious metals and precise processes to apply such materials led to this improved LNT technology for Euro6 legislation. In addition, the development of the new CS4F multi-functional catalyzed soot filter was required to further enhance the operational window for such an advanced emissions reduction system for diesel passenger car applications.

Light Duty Csf Or Scro F 4

The LNT+CS4F system offers significant value to automakers.

  • Lower weight
  • Saves space
  • Less complexity