Fuel injection device for automobile internal combustion engine has throttle in path of fuel to injection opening for reducing force acting on jet needle in opening direction

摘要

The fuel injection device (1) has a fuel injection valve (9) provided with a jet needle (11) for injecting fuel into the engine, the fuel supplied at high pressure via a fuel line (5) coupled to a control chamber (43) in which the fuel pressure is controlled via a control valve (41). The fuel injection valve has a throttle (60) in the path of the fuel supplied to the injection opening, for reducing the force acting on the valve needle in the opening direction.