EXHAUST GAS FILTER DEVICE

摘要

The invention relates to an exhaust gas filter device for filtering out contaminating substances from exhaust gases, comprising: a filter device for filtering the exhaust gases, wherein the exhaust gases enter the filter device at a filter inlet surface, flow through the filter device and exit the filter device at a filter outlet surface; and a distribution duct for distributing the exhaust gases to be filtered along the filter inlet surface and a collecting duct for collecting the filtered exhaust gases exiting at the filter outlet surface; wherein the cross-section of the collecting duct increases in the flow direction of the exhaust gases and/or the cross-section of the distribution duct decreases in the flow direction of the exhaust gases.