Patent ID: 7007921

Claim:
A high-speed actuating device suitable for actuating a switching flap between two switch positions with very short switching times, whereby the switching flap is situated in a gas-carrying line and closes off the line cross section in the first switch position and opens the line cross section in the second switch position, wherein a) the high-speed actuating device has two switchable electromagnets between which is arranged an armature which is drive-coupled to the switching flap, whereby the armature is in contact with the one electromagnet in the first switch position of the switching flap and is in contact with the other electromagnet in the second switch position of the switching flap device, b) the armature is fixedly connected to a shaft which is mounted to rotate about its longitudinal axis, and the switching flap is also fixedly mounted but is axially offset in relation to the armature, and c) each electromagnet has a yoke on which is provided a stop surface for the armature against which the armature comes to rest in one of the switch positions, whereby the yoke is interrupted in the area of the stop surface by a gap which is bridged by the armature when the armature is in contact with the stop surface, and d) the yoke has a cross section which tapers to the gap on an end section which terminates at the gap.