INTERNAL COMBUSTION ENGINE GAS EXHAUST DEVICE Russian patent published in 2002 - IPC

FIELD: mechanical engineering; exhaust systems of internal combustion engines. SUBSTANCE: device has exhaust pipe with tubular member installed from outside coaxially by means of rigidly secured ribs made in form of spiral blades. Tubular member has widening part behind cut of exhaust pipe on inner surface of which longitudinal screw-like grooves are found with dovetail profile changing into round groove located at outlet hole of tubular member. Housing is connected to outlet hole of tubular member. Said housing is longitudinal divided by perforated zigzag partitions into sections with formation of confusers and diffusers alternating in staggered order. Perforated zigzag partitions are made of bimetal and are coated with adsorbing material. EFFECT: improved cleaning of exhaust gases by adsorption of harmful gas and fume contaminants by adsorbing material placed on way of exhaust gases from exhaust pipe in device Featuring cleaning properties at minimum aerodynamic resistance; no adverse effect of ambient atmosphere. 1 dwg