A hydrodynamic coupling device includes {TAIL ~ a hydrodynamic circuit} having at least an impeller wheel and {HEAD ~ a turbine wheel} and a lockup clutch having an axially movable piston and a torsional vibration damper 
A hydrodynamic coupling device includes { TAIL ~ a hydrodynamic circuit } having at least an impeller wheel and { HEAD ~ a turbine wheel } and a lockup clutch having an axially movable piston and a torsional vibration damper
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH