Patent ID: 8561766

Claim:
A piston-cylinder unit comprising: a work cylinder filled with a fluid under pressure; a hollow piston rod displaceably arranged along a center longitudinal axis in the work cylinder, coaxial to the work cylinder; a connection element located at an end of the hollow piston rod outside the work cylinder; a piston at an end of the hollow piston rod located in the work cylinder, configured to divide the work cylinder into a first work space and a second work space; a valve needle arranged in the piston rod; at least one throughflow channel arranged in the piston rod extending in a axial direction, the valve needle having a recess at one end, and being rotatable into a position such that the recess and throughflow channel are located opposite one another in a defined area to control a fluid; an adjusting unit; and a lever arranged at and end of the valve needle outside the work cylinder that extends in radial direction and is swivelably acted upon by the adjusting unit, wherein the adjusting unit is arranged at the connection element entirely outside a flow of force of the piston-cylinder unit and comprises: an electrically driven motor; a shaft configured to be driven by the motor; a disk having a recess and a receiving device fastened to the shaft; and a bolt rotatably supported in the receiving device and having a through-bore defined by a cylinder that extends perpendicularly to a longitudinal axis of the bolt through which the lever extends.