Ralf Marohn

METHOD AND DEVICE FOR CONTROLLING THE PIEZO-ACTUATOR OF A PIEZO-CONTROL VALVE OF A PUMP NOZZLE UNIT

Fuel injection nozzle has outer nozzle needle and control element in form of inner nozzle needle with first and second lower and higher fuel outlet cross-section positions

Injection valve e.g. pump-nozzle unit has cooling line which exhibits first throttle in direction of flow before spring chamber and after spring chamber cooling line has exhibits second throttle in direction of flow

Einspritzventil, insbesondere Pumpe-Düse

Pumpe-Düse-Einheit Pump-nozzle unit

Pump-nozzle device

Pumpe-Düse-Vorrichtung Pump-injector device

Kraftstoffeinspritzdüse und Pumpe-Düse-Einheit

Pump-jet device for diesel engine fuel injection with pump, control valve and jet unit has throttle between working space of pump and discharge channel coupled to control space via valve element

Pump-nozzle apparatus