DEVICE FOR DISCHARGE EXHAUST GASES OF INTERNAL COMBUSTION ENGINE Russian patent published in 2004 - IPC

FIELD: mechanical engineering; internal combustion engines. SUBSTANCE: invention can be used in exhaust system of internal combustion engine of running vehicle. Proposed device contains exhaust pipe and tubular member installed on pipe coaxially from outside by means of ribs in form of spiral blades. Tubular member has widening part after cut of exhaust pipe. Said part is provided with longitudinal dovetail screw-like grooves changing into circular groove at outlet hole of tubular member. Curvature of spiral blades has positive direction of helical line, and curvature of screw-like grooves has negative direction of helical line. Inlet hole of tubular member is provided with metal gauze. EFFECT: improved engine power output owing to additional suction of exhaust gases from muffler. 3 dwg