Device for regulating tyre pressure

The tire pressure regulation device (1) has a rotary device (2) for transfer of a pressure medium from a stationary part to the rotating wheel (3), provided with at least one chamber (14,15) concentric to the wheel rotation axis, defined by stator and rotor rings (4,5) and sealed by sealing rings between the latter. An axial movement gap is provided between the stator and rotor rings, the stator ring having 2 concentric annular grooves (20,21;21,22)coupled to pressure medium control lines (25,27) used for movement of the sealing rings.