Device for adjusting the air pressure of a pneumatic tire (6) arranged on a vehicle axle (1) via a rim, comprising a sleeve (14) to be placed on a stationary axle housing (3) with two separate, circumferentially offset air channels (19, 19'), each having a...

A tire inflation system having a rotary coupling. The rotary coupling may have a mounting member and a rotating member. The rotating member may be rotatably coupled to the mounting member and may have a rotating member passage that may fluidly connect a fi...

The annular rotary feed-through structure has a stator (3) which is rotatably supported with respect to a stator ring (2). The annular duct (9) having U-shaped cross-section is provided with an annular opening. Both sides of the annular opening are sealed ...

The rotary joint (1) has a rotor assembly (9), which is connected to a shaft carrying a wheel of the vehicle and a stator assembly (4) arranged with respect to the rotational movement of the rotor assembly in a fixed manner. The rotor assembly is formed in...

The tire pressure adjustment system has a body-lateral valve assembly and a wheel-lateral valve assembly. The body-lateral valve assembly and the wheel-lateral valve assembly are stand in connection with each other by a transition chamber. A hollow space i...

The rotary tubular valve for inflating tractor tires has pairs of sealing rings (35, 41) fitted at either end of the chamber (K) between the outer casing (13) and the rotating inner section (28). The outer ring (35) of the pair can slide axially, while the...