Optimization of Partial Filter Technology for Diesel Engines

Diesel particulate matter collection results of a new design for a non-blocking diesel particulate filter are presented. Engine/dynometer testing with partial flow dilution tunnel DPM sampling show the device is capable of greater than 50% DPM trapping efficiency. Parameters in the design of the device such as, the quantity and type of filtration media is shown to directly impact on the trapping efficiency of the device. Preliminary durability results show minimal effects on device performance. In addition, history effects due to engine mode on DPM trapping performance are discussed