A self-cleaning particle filter for Diesel engines is provided. The filter includes a filter housing, control circuitry, a removable filter cartridge and independent power source. The removable filter cartridge includes a number of sintered metal strips sewn to a sheet of inorganic material to provide...http://www.google.es/patents/US5853437?utm_source=gb-gplus-sharePatente US5853437 - Self-cleaning and self-sealing particle filter
