Particle trap and process for separating particles out of an exhaust gas flow and honeycomb body and exhaust system having a particle trap

A process for separating particles out of an exhaust gas of a motor vehicle, which comprises:

• providing a particle trap with a multiplicity of flow channels each having a porous channel wall;
• providing at least one diverting or guiding structure in each of the multiplicity of flow channels;
• and
• throwing or diverting particles out of the exhaust gas flowing through the particle trap onto the porous channel wall with the at least one diverting or guiding structure.

An exhaust system of an internal-combustion engine, comprising:

• a particle trap for separating particles out of an exhaust gas flow;
• said particle trap having a multiplicity of flow channels through which the exhaust gas flows;
• each of said flow channels having at least one wall with regions, at least said regions being made from porous material;
• and
• each of said flow channels having internals acting as a guiding structure for diverting the particles out of the exhaust gas flow to said regions made from porous material.

An exhaust system of a diesel engine, comprising:

• a particle trap for separating particles out of a diesel exhaust gas flow;
• said particle trap having a multiplicity of flow channels through which the diesel exhaust gas flows;
• each of said flow channels having at least one wall with regions, at least said regions being made from porous material;
• and
• each of said flow channels having internals acting as a guiding structure for diverting the particles out of the diesel exhaust gas flow to said regions made from porous material.