Patent ID: 8720852

Claim:
An injection valve comprising an injection valve housing having a threaded opening; a piezoactuator, the piezoactuator having a piezoactuator housing with an opening, the piezoactuator housing having a thread operable to be engaged with the threaded opening of the injection valve housing, the piezoactuator being movable in the piezoactuator housing, wherein the piezoactuator moves in direction of the opening when triggered and wherein the piezoactuator is screwed in said injection valve housing with a variable distance between the piezoactuator and a transfer element arranged in said injection valve housing, and a compensation collar arranged between the piezoactuator housing and the injection valve housing having a thickness which defines a maximum for the variable distance between the piezoactuator and the transfer element when said piezoactuator housing is screwed into said injector valve housing such that the piezoactuator makes contact with said transfer element, wherein the thickness of the compensation collar completely compensates for any tolerance in an idle stroke distance between the piezoactuator and said transfer element when said piezoactuator is mounted within said injection valve housing, wherein the threaded opening of the injection valve housing is designed to allow insertion of a prestressing device for adjusting the thickness of the compensation collar and for insertion of the piezoactuator after said compensation collar has been adjusted.