Damping system for hydraulic coupling device, hydraulic coupling device and motor vehicle

A damping system for a hydraulic coupling device, comprising:

• an output hub having a central axis and an annulus around the central axis, a plurality of first tracks being arranged in the annulus,
• a plurality of turbine mass assemblies uniformly distributed around the central axis, each turbine mass assembly comprising a turbine section, each turbine section carrying a plurality of blades and being provided with a second track corresponding to one of the first tracks,
• a roller that can roll along a roller track defined by one of said first tracks and its corresponding second track, so that the turbine mass assembly can move relative to the output hub and exert torque on the output hub,
• wherein each of said turbine mass assemblies further comprises a mass plate fixedly connected to a respective turbine section, the output hub being arranged between the respective mass plate and turbine section.