Servo valve and injection valve

The injection valve has an injector housing (1), a piezo-actuator (4), a leakage cavity (14), a valve plate (16), and an intermediate plate (18). It also has two valve bodies and a sealing shell the first valve body is arranged so that the fluid can flow to the first seat region through a recess in the second valve body. The second valve body is in a recess in the housing, and has a closing body which is sealed to the second seat region in the closed position of the second valve body.