Patent ID: 8499733
Filing Date: 2013-08-06
Classification: F01L

Abstract:
1. A device for adjusting a relative rotation angle position of a rotating shaft with respect to a drive element, comprising a substantially hollow-cylindrical translational member, which is arranged coaxially with the rotating shaft and with the drive element and is coupled to the rotating shaft and to the drive element such that an axial movement of the hollow-cylindrical translational member brings about an adjustment of the relative rotation position of the shaft with respect to the drive element, and an actuating unit for moving the hollow-cylindrical translational member axially, said actuating unit comprising two brake actuators and two counter-rotating screw drives for coupling the brake actuators to the hollow-cylindrical translational member such that, upon selective actuation of one of the brake actuators, an axial movement of the translational member takes place in one direction or the other, at least a first one of the screw drives of the actuating unit is accommodated at least partially in the rotating shaft to be adjusted, wherein the accommodated part of the first screw drive comprises a spindle section, which is arranged coaxially with the rotating shaft, and a nut, which can be moved axially with respect to the spindle section and which is connected in a way to a section of the hollow-cylindrical translational member which is also accommodated in the rotating shaft that an axial movement of the nut brings about an axial movement of the hollow-cylindrical translational member in a first direction.