An axle assembly includes a connection assembly having a stationary portion and a rotary portion. The stationary portion is configured to couple to an inlet airflow assembly configured to be non-movably coupled to a beam housing, the rotary portion is configured to couple to an outlet airflow assembly configured to be non-movably coupled to a steering knuckle, the stationary portion forms a cavity configured to facilitate flow of pressurized air from the inlet airflow assembly to the rotary portion, and the rotary portion forms an airflow path configured to facilitate flow of the pressurized air from the cavity to the outlet airflow assembly.

A steer axle spindle may have one or more channels formed therein. A rotary union may be mounted to a steer axle wheel end assembly. The rotary union may be sealingly connected to a pressurized fluid source through the channel, and sealingly connected to a vehicle tire.

A system (40) for transmitting control pressures and/or working pressures from a wheel-hub pressure medium supply (20, 21, 22), in particular from a wheel-hub pressure medium rotary union (21), to a vehicle rim (2) mounted on the wheel hub (1). The system (40) has a receiving part (41), which has a central region (55) with a central opening (44) and at least one extension region (43) projecting radially from the central region (55), at least in some regions. The receiving part (41) can be connected to the wheel hub (1) by means of the at least one radially projecting extension region (43), in a detachable way, and the control pressures and/or working pressures can be transmitted from the wheel-hub pressure medium supply (20, 21, 22) to the opening (44).

An assembly supplies compressed air to a wheel of a vehicle. The assembly includes a wheel with a tire, a drive shaft for transmitting torque to the wheel, a wheel bearing on which the wheel in mounted in a rotationally fixed manner, and a toothing between the drive shaft and the wheel bearing. The wheel bearing is tensioned with the drive shaft by a bolt, wherein the bolt is arranged coaxially in relation to the drive shaft. An annular chamber of the wheel bearing is defined inside the wheel bearing and radially outside of the bolt. A compressed air through-opening is provided from the annular chamber of the wheel bearing in the direction of the wheel. A compressed air guide, leads from a compressed air source on the vehicle side into the annular chamber of the wheel bearing, from the annular chamber of the wheel bearing via the at least one compressed air through-opening to the wheel, and from the wheel into the tire.

An internal fixing set for a tire pressure automatic calibrator having a pressure air source from which at least a pressure air conduit is extended, said pressure air conduit being mounted on the interior of a vehicle hollow shaft and connected to a flexible tube which in turn is connected to a rotary coupling that distributes air to the vehicle tires, wherein the internal fixing set comprises a piece having a bowl-shaped external section that is attachable to an inner surface of the hollow shaft and an cane-shaped internal section through which interior the pressure air conduit passes and said pressure air conduit is connected to said flexible conduit.

A visual flow indicator provided on a tire inflation system air hose or rotary union housing.

A rotary joint for use with a central tire inflation system and a network of sensorized components for a driveline is provided. The rotary joint comprises a sealing gasket wear detection system and a rotary encoder disposed within a joint cavity. The network of sensorized components comprises a sensorized wheel hub, a transmission speed sensor, and a controller in communication with the sensorized wheel hub and the transmission speed sensor through a communication bus. A method of utilizing a network of sensorized components to analyze a driveline and a method for monitoring a wear of a sealing gasket of a rotary joint is also provided.

The present invention concerns un rotary joint (10, 10) apt to transfer a fluid between two entities, one of which is in rotary motion with respect to the other, said rotary joint (10, 10) being characterised in that it comprises a cylindrical internal element (11), apt to be fixed to said entity in rotary motion, and a plurality of annular external elements (14, 15, 17, 18), which can be coupled and which are self-centering, which can be fitted modularly, said external elements (14, 15, 17, 18) comprising at least two head elements (14), at least two housing elements (15) of respective gaskets (16), two bearing elements (17) and at least one fluid inlet element (18), said at least one fluid inlet element (18) being placed in an intermediate position between said two bearing elements (17), said at least two housing elements (15) of respective gaskets (16) being arranged externally with respect to said two bearing elements (17) and said at least two head elements (14) being arranged externally with respect to said at least two housing elements (15) of respective gaskets (16), said gaskets (16) defining an annular shaped sealed area in the space delimited laterally by the same gaskets (16), internally by said internal element (11) and externally by said external elements (14, 15, 17, 18) comprised between said gaskets (16), said sealed area being accessible on one side through said fluid inlet element (18) and on the other side through at least one fluid passage channel (20, 21) passing through the body of said internal element (11) up to one of the two axial ends.

Moreover, the invention concerns pressure regulation systems of a tire (B) comprising said rotary joint (10, 10).

A tire inflation system safety valve includes at least an air line disposed between a rotary union and a tire communicating with an axle supporting a hubcap, the rotary union axially aligned with the axle and mounted to the hubcap. The air line facilitating pressurized air transferred between the rotary union and the tire. The tire inflation system safety valve including at least a valve housing providing a valve activation chamber, a fluid conduit, supported by the valve housing, having a downstream end and an upstream end and in fluid communication with the valve activation chamber, and a diaphragm disposed within the valve activation chamber and communicating with the fluid conduit. The diaphragm, in response to the pressurized air of a predetermined pressure, automatically precludes air transfer between the upstream end of the fluid conduit and the downstream end of the fluid conduit.

A rotary joint for use with a central tire inflation system and a network of sensorized components for a driveline is provided. The rotary joint comprises a sealing gasket wear detection system and a rotary encoder disposed within a joint cavity. The network of sensorized components comprises a sensorized wheel hub, a transmission speed sensor, and a controller in communication with the sensorized wheel hub and the transmission speed sensor through a communication bus. A method of utilizing a network of sensorized components to analyze a driveline and a method for monitoring a wear of a sealing gasket of a rotary joint is also provided.