METHOD AND SYSTEM FOR CONTROL OF TURBOCHARGED INTERNAL COMBUSTION ENGINE WITH SPARK IGNITION Russian patent published in 1999 - IPC

FIELD: mechanical engineering; internal combustion engines; supercharging and fuel feed systems. SUBSTANCE: control of turbocharging pressure (P_tc) is provided by regulated bypass valve of turbocompressor turbine furnished with pneumatic actuator. Moreover, passing of cleaned air flow bypassing compressor at partial loads is provided. Control of fuel delivery pressure (P_f) into carburetor jets is provided by diaphragm fuel pump and fuel feed pneumatic corrector valve. Change of ignition advance angle (ϕ_ign) is provided by individual pneumatic corrector-breaker. Automatic intercoupling of all three parameters P_tc, P_f, ϕ_ign is provided by separate pneumatic actuators controlled by turbocharging pressure in intake manifold. EFFECT: enhanced fuel economy and ecological characteristics. 3 cl, 2 dwg