Patent ID: 9080538
Filing Date: 2015-07-14
Classification: F02M

Abstract:
1. An injector assembly for an injection valve comprising: an injector body with a central longitudinal axis and a recess with a fluid inlet, a nozzle needle arranged axially movably in the recess in such a way that a fluid flow through at least one injection opening is prevented in a closed position of the nozzle needle and, otherwise, a fluid flow through the injection opening is released, and the nozzle needle has an end side which faces away from the injection opening, a chamber formed in the injector body and defined in part by the end side of the nozzle needle facing away from the injection opening, and a cylindrical recess formed in the injector body, a throttle module arranged in the chamber, a fluid feed chamber coupled hydraulically to the fluid inlet, a control space coupled hydraulically to the fluid feed chamber via an inflow throttle for setting a pressure force which can be applied to the nozzle needle, and a valve chamber coupled hydraulically to the control space via an outflow throttle for receiving a valve configured for discharging fluid into a fluid return line, and a control module arranged in the chamber and adjacent to the throttle module, wherein the fluid return line is formed in the control module, exactly one first sealing edge between the throttle module and the injector body, the first sealing edge suppressing a hydraulic coupling of the fluid feed chamber to the control space, exactly one second sealing edge between the throttle module and the control module, the second sealing edge suppressing a hydraulic coupling of the fluid feed chamber to the valve chamber, and a third sealing edge formed between the injector body and the control module, the third sealing edge suppressing a hydraulic coupling of the fluid feed chamber to the fluid return line; wherein the throttle module has an axial length, and wherein the throttle module is received along the full axial length in the cylindrical recess formed in the injector body, the cylindrical recess having a constant diameter along the full axial length of the throttle module.