Patent ID: 8480014

Claim:
A fluid injection valve having an inlet which is set up to receive fluid from a supply line and is connected to a chamber, a fluid outlet which is connected to the chamber, is set up to allow fluid to flow out of the fluid injection valve and has a valve arrangement having a valve seat and a valve element, wherein the valve element is set up to perform opening and closing movements relative to the valve seat, a linear actuator which is set up to move the valve element to the valve seat, the linear actuator being an electromagnet arrangement having a stator, and wherein the stator takes the form of a multi-pole stator having a plurality of stator poles which are arranged spaced in a row, the stator having a plurality of exciter coils associated with the respective stator poles and each arranged between two stator poles, and a spring arrangement which exerts on the valve element a force which is dependent on the fluid pressure prevailing in the chamber, wherein the spring arrangement includes a push-pull plate which is substantially dish-shaped and is oriented—relative to the direction of movement of the valve element in the radial direction, and includes at least one pressurised chamber which is deformable under pressure and is arranged fluid-tight against the dish-shaped push-pull plate such that it deforms the push-pull plate elastically under the action of the pressure prevailing in the chamber, with the result that the force thereof exerted on the valve element varies with the pressure of the fluid prevailing in the chamber.