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