The guideline deals with hydrodynamic torque converters (Föttinger converters), clutches (Föttinger clutches) and brakes (retarders), defines terms, labels and names and explains designs, calculation principles and modes of operation. This is intended to make the selection, design and comparison of these types of power transmission easier.*www.vdi.de/2153
VDI 2153-1994 Referenced Document
DIN 461:1973 Graphical Representation in Systems of Coordinates