Fuel injection system for IC engine - has pumped by=pass air duct to provide airflow to disperse fuel from injector.

摘要

The fuel injection system has a bypass air duct (35) providing an airflow at a fuel injector (4) to enable the fuel to disperse via the aerosol effect. The bypass duct includes a pump (40) and a control valve (35) to regulate the airflow wrt. the engine requirements. A processor controller (ECU) (36) regulates the valve and the pump. The pump is shunted by a second bypass air duct (44) with a regulated valve (42) which effectively regulates the pump effect. A non return valve (46) protects against backflow into the inlet manifold. Airspeed sensors (3) linked to the processor provide a simple monitor control. ADVANTAGE - Variable injection control, efficient dispersal of fuel even at idling speeds. Less hydrocarbon emission.