Needle speed control possibility, raising the pressure is accompanied or without raising the pressure method in order to control the fuel injector, and this fuel injector

摘要

This invention had the valve element (2), it regards the fuel injector of the fuel injection equipment for the internal combustion engine. The valve element (2) has had the releasing pressure possible control room (19), this control room (19), through the influx contraction (32), is loaded with the fuel, through the outflow contraction (17), releasing is designed in such a way that it is overpowered. The closed component (43) through the 1st adjustment component (15), is operational. As for the valve element (2) being connected by the support (5), in this support (5), the nozzle body (9) which encircles the injection valve component (11) is fixed. In order releasing to overpower the control room (19), another 2nd outflow contraction (18) has been provided, the closed component (49) of this 2nd outflow contraction (18) is operational with another adjustment component (16) or pertaining to the supply of electricity (70,73,79) of the adjustment component (50) of double change type.