EXHAUST GAS RECIRCULATION SYSTEM OF INTERNAL COMBUSTION CARBURETTOR ENGINE Russian patent published in 2001 - IPC

FIELD: mechanical engineering. SUBSTANCE: proposed invention can be used in device aimed at reduction of discharge of toxic substances with exhaust gases of internal combustion engine. Exhaust gas recirculation system has exhaust manifold connected by channel with intake manifold, intake pipe 1 and recirculation valve 8 arranged on intake pipe and installed in channel connecting exhaust manifold with intake manifold. Channel 13 in intake pipe 1 opening into intake manifold after recirculation valve 8 is made in intake pipe 1 in step-like manner, with axis of hole arranged along axis of symmetry of holes for primary chamber 11 and secondary chamber 14 of carburetor 6 passing at angle of 20 deg relative to mounting plane 5 of carburetor 6 and through point located equidistantly from axis of holes for primary chamber 11 and secondary chamber 14 (midway). EFFECT: improved efficiency of mixture preparation at partial loads and uniform distribution of recirculation gases among cylinders of carburetor engine. 2 dwg