Exhaust gas cleaning system for diesel engines

An exhaust gas cleaning system for diesel engines employing a hollow housing, said housing being provided with axially disposed inlet and outlet exhaust gas passages at respective ends of said housing;

• a catalytic bed;
• a heat resistant filter;
• said catalytic bed being disposed concentrically within said filter to form a combined assembly;
• said assembly being positioned at a downstream side within said housing to define a passage in a space between an outer surface of said assembly and an interior wall surface of said housing;
• wherein;
• said filter and catalytic bed being laminated to one another and being cylindrically shaped as a hollow assembly;
• a partition plate;
• said plate being disposed at the outlet of said assembly to form a closure for separating said inlet and outlet gas passages;
• a regenerating burner;
• said burner being affixed to said housing in air tight relation to and in proximity of said inlet passage;
• said assembly being subjected to hot air from said burner for burning and removing trapped particles from said filter;
• and said burner being ignited intermittently in response to pressure differential across said assembly due to clogging thereof, as exhaust gas passes through said filter.