Abstract: Various embodiments include an adjusting filter for a fluid injector valve comprising: an elongate filter sleeve having an inlet and an outlet; and a filter insert. The filter sleeve includes a filter accepting section at the inlet, a press-fit section, a centring section at the outlet, and a spring engaging surface surrounding the outlet. The press-fit section is arranged between the filter accepting section and the centring section. The filter insert is arranged in the filter accepting section. The filter accepting section has an outer diameter smaller than an outer diameter of the press-fit section. The centring section has an outer diameter smaller than the outer diameter of the press-fit section.

Abstract: A valve assembly for an injection valve includes a valve body that includes a cavity with a fluid inlet portion and a fluid outlet portion. The cavity includes a first portion extending from the fluid inlet portion to a bottom surface and a second portion extending from a central opening in the bottom surface down towards the fluid outlet portion. The valve assembly includes a valve needle axially movable in the cavity. The valve needle includes a shaft and a ball; the ball cooperating with a valve seat to prevent a fluid flow through the fluid outlet portion in a closing position and to release the fluid flow through the fluid outlet portion in further positions. The valve assembly includes a seat body forming the valve seat and a ball guide. The valve assembly includes where a lower particle filter is entirely arranged in the second portion of the cavity.