Fuel injector valve

The valve (1) has a housing part (2) i.e. retaining body, and a supply channel (3) arranged in the housing part and comprising an insertion area (4). The insertion area of the channel has a section (7) with an elliptical contour (8) and/or a section with a parabolic contour. The supply channel has a conical section that is arranged behind the insertion area in a flow direction (12). A canister filter is arranged in a cylindrical section of the insertion area, and a dust filter (6) is arranged in a cylindrical hole (5), where the hole is formed behind the insertion area in the flow direction.