A diesel exhaust cleaner and regeneration system with indexing particulate trap for use with a diesel engine, as on a city bus, includes a housing means having a cylindrical intermediate housing, an exhaust inlet means at one end and an exhaust outlet at its opposite end with a shaft operatively journaled...http://www.google.co.uk/patents/US4573317?utm_source=gb-gplus-sharePatent US4573317 - Diesel exhaust cleaner and regeneration burner system with indexing particulate trap
