An automobile type exhaust gas lead filter is particularly applicable to diesel engine smoke reduction. It has a tubular housing with alumina coated metal wire fibers as the filter bed, which is centrally located. There are open spaces forming plenums at the ends of the housing. And, the inlet and outlet...http://www.google.es/patents/US4255173?utm_source=gb-gplus-sharePatente US4255173 - Lead filter for internal combustion engine exhaust gases
Lead filter for internal combustion engine exhaust gases
