Development of a Battery-Voltage-Driven Fuel Injector for Direct-Injection Gasoline Engines (2nd Report, Study on Enlargement of Magnetic Force for Higher Pressurised Fuel Injection)

摘要

The battery-voltage-driven fuel injector for Direct-Injection Gasoline Engines has an opening coil and a holding coil which enable the injector to operate at the battery voltage, thus eliminating the need for either voltage-step-up circuitry or current-control circuitry. The aim of current work wasto increase the magnetic force so as to increase the pressure of fuel injection.