DIRECTLY CONTROLLED INJECTION VALVE, ESPECIALLY A FUEL INJECTION VALVE

摘要

The invention relates to an injection valve, especially a fuel injection valve, comprising a housing (2) wherein a pressure chamber (3) is located. A supply line (9) for the liquid to be injected under pressure opens into this pressure chamber, said supply line (9) being connected to a liquid supply (10). The pressure chamber (3) also has at least one outlet (7) which is configured as an injection nozzle. A valve needle (5) which is connected to a piston (4) and which is guided in such a way that it can move against the force of a return spring (6) is also arranged in the pressure chamber (3). Said valve needle closes the outlet (7) when the pressure chamber is pressureless. The inventive injection valve also has control valve (13) which is located in the line (9) for the liquid, said control valve being relieved of pressure and being connected to the actuating drive (14).