Patent ID: 6902124

Claim:
A fuel injector, comprising: a valve needle; a valve seat body including a first valve seat surface and a second valve seat surface; an actuator that cooperates with the valve needle; a first valve closure member arranged on the valve needle and cooperating with the first valve seat surface on the valve seat body to form a first sealing seat; a second valve closure member cooperating with the second valve seat surface in the valve seat body to form a second sealing seat; and a spring supported against a spring receptacle, wherein: the valve seat body includes a first circumferential hole circle element having a plurality of spray-discharge bore holes that are arranged in the valve seat body so that the first sealing seat seals the first circumferential hole circle element with respect to a fuel supply, the second valve closure member surrounds one of the valve needle and the first valve closure member, the second valve closure member is guided by the first valve closure member and is biased against the second sealing seat by the spring, a second circumferential hole circle element including a plurality of spray-discharge bore holes is arranged so that the second sealing seat seals the second circumferential hole circle element radially on an interior, and a third sealing seat, which is formed by the second valve closure member having the valve seat body on a third valve seat surface, seals the second circumferential hole circle element radially to an outside with respect to a further fuel supply, and one of the valve needle and the first valve closure member includes a limit stop, at which, after a partial stroke of the valve needle, a counter limit stop of the second valve closure member comes into contact and lifts the second valve closure member in a further stroke of the valve needle from the second sealing seat.