Concept for deep cleansing of DPF
Topic: Concept for deep cleansing of diesel particle filters
Project duration: 2009-2010
Project status: completed
Diesel particle filters (DPF) are used for several years now. At the moment they are the most effective downstream measure to reduce diesel engine particle emissions. Due to this diesel particle filters have a high operation time.
Besides soot that is burnt during the filter regeneration, further incombustible substances are stored in the filter. Mainly these are ashes of burnt engine oil and – if additive supported regeneration is applied – of the regeneration additive. The ashes stored in the filter reduce the available filtration surface and by this cause an increased exhaust back pressure. The results are a higher fuel consumption, rising exhaust gas emissions and possibly also the breakdown of the filter. Therefore the filter has to be cleaned or changed regularly. Changing soot loaded but well-functioning filters is not economical. Therefore the industry is interested in cleaning DPFs, which is currently problematic.
Within this context the Task Force III of the FAD e.V. decided to initiate a project with the objective to develop an optimized concept for the ash cleaning of diesel particle filters and for the functionality control after the cleansing. For this project 11 project partners could be won.
After one year the project was successfully finished in 2010. In this project also two diploma theses were accomplished.
