The invention relates to a
magnet injector for fuel reservoir injection systems, having a fuel inlet and a fuel outlet, a control chamber, which communicates with the inlet, a
nozzle which communicates with the inlet and a
nozzle needle, which has a tip for closing the
nozzle opening and has a shaft end that borders on the control chamber; and a
magnet valve which has a first
electromagnet, an armature, a valve chamber that communicates with the outlet via a first passage and with the control chamber via a second passage, and a
throttle body which is located in the valve chamber and is connected to the armature, wherein the
throttle body, in the state of repose of the
injector, is kept in a first terminal position, in which it blocks one of the two passages, and is moved toward a second terminal position, in which it opens this passage, by triggering of the first
magnet. To make shorter switching times possible, the magnet valve has a second
electromagnet, which upon triggering acts on the armature oppositely from the first
electromagnet. The
throttle body is embodied such that in its second terminal position, it blocks the other of the two passages and along the way between its two terminal positions opens both passages.