EXHAUST GAS RECIRCULATION SYSTEM OF MULTICYLINDER v-TYPE INTERNAL COMBUSTION ENGINE Russian patent published in 1996 - IPC

FIELD: mechanical engineering; internal combustion engines; exhaust gas recirculation systems. SUBSTANCE: exhaust gas recirculation system for multicylinder V-type engine has exhaust manifold, intake manifold, thermovacuum switch, recirculation valve 6 to deliver exhaust gases from exhaust manifold under throttle valves in carburetor mixing chambers according to definite recirculation law. Recirculation valve 6 is secured on spacer 8 installed between carburetor mixing chambers. Spacer 8 has channel to deliver recirculated gases to recirculation valve 6 and additional channel 12 and slot 13 on lower plane to deliver exhaust gases from recirculation valve 6 under throttle valves in carburetor mixing chambers. Outlet for exhaust gases to under throttle valves in carburetor mixing chambers is located at a distance not less than 1.15 of mixing chamber diameter from axle 9 of throttle valves 7 in direction of their opening on arcs of holes of mixing chambers within 25 and 35 degrees. EFFECT: enlarged operating capabilities. 4 dwg