Abstract: The invention relates to an actuator (10) for units comprising a planetary gear (14), especially a planetary differential gear, whose radially inward region is embodied as a hollow shaft and which is equipped with a drive unit and a driven shaft that cooperates with the unit to be operated. A drive shaft of the planetary gear (14) is connected to the drive unit and can be driven by the same. Said drive shaft is configured as a first hollow shaft (16) while the driven shaft is embodied as a second hollow shaft (40). A planet carrier (28) is provided that is connected to the first hollow shaft (16) or is embodied with the radially inward region thereof as a first hollow shaft (16) in such a way that a rotary movement is also performed by the planet carrier (28) when the first hollow shaft (16) rotates while the drive unit as well as the first (16) and the second hollow shaft (40) encompass a common axis of rotation.

Abstract: An intelligent control and regulating device, especially for use in the process technology for flowable substances and media, which is built into the housing of an adjusting drive mechanism or into the drive mechanism itself and which has an adjustment arrangement controlling an adjusting member via an auxiliary energy device depending on sensor signals. The inventive control and adjusting device, which reacts reliably and rapidly to changing ambient conditions, includes a parameterable process regulator which receives adjustment input signals from the external sensors.

Abstract: An intelligent control and regulating device, especially for use in the process technology for flowable substances and media, which is built into the housing of an adjusting drive mechanism or into the drive mechanism itself and which has an adjustment arrangement controlling an adjusting member via an auxiliary energy device depending on sensor signals. The inventive control and adjusting device, which reacts reliably and rapidly to changing ambient conditions, includes a parameterable process regulator which receives adjustment input signals from the external sensors.