A heavy-duty vehicle brake hardware mounting component that includes an integrated axle vent system and optional air supply line connector. The brake hardware mounting component includes a body with a central opening disposed around and rigidly attached to an axle of the vehicle. An annular groove is formed within the central opening and is in fluid communication with an axle opening. The air supply line connector is attached within an opening formed in the body and extends through the groove and into the axle opening, and enables attachment of and fluid communication between components of a tire inflation system within the axle and an external air source. Pressurized air from within the axle can flow through the axle opening, around the air supply line connector, through the annular groove, through a check valve in fluid communication with the groove, and to atmosphere to relieve air pressure build-up within the axle.

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 tire management system includes a control valve and a check valve. A method for managing a tire includes: determining a pressure parameter value, determining an operational parameter for a valve based on the pressure parameter value, and controlling the valve based on the operational parameter.

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 tire management system includes a control valve and a check valve. A method for managing a tire includes: determining a pressure parameter value, determining an operational parameter for a valve based on the pressure parameter value, and controlling the valve based on the operational parameter.

A tire pressure control system can include a pneumatic line with a first end in fluid communication with an interior of a tire and a pressure sensing device configured to acquire pressure data within the tire measured from the single pneumatic line. A motion sensing device can be configured to acquire motion data of the tire pressure control system. A microcontroller can receive the pressure data from the pressure sensing device and the motion data from the motion sensing device. A pneumatic solenoid in fluid communication with a second end of the single pneumatic line can be in an initial, closed position. The microcontroller can open the pneumatic solenoid and release fluid from the interior of the tire when the pressure data and motion data meet preset conditions.

A load-based tire inflation system for a heavy-duty vehicle comprises at least one source of fluid pressure, suspension structure of the heavy-duty vehicle, a tire and wheel assembly and a system to control fluid pressure in the tire and wheel assembly. The suspension structure is located between a frame member and an axle and has a condition indicative of a weight of the heavy-duty vehicle. The tire and wheel assembly is operatively mounted to the axle and is in fluid communication with the source of fluid pressure. The control system controls fluid pressure in the tire and wheel assembly in response to the condition of the suspension structure.

A tire inflation system for a small trailer may include a fluid pressure source mountable to the trailer, and fluid conduits providing sealed fluid communication between the fluid pressure source and the small trailer's pneumatic tires. The system may further include a fluid connector configured for connection to an external fluid power source.

The air transmission structure includes a statorhaving an annular outer wall with at least one aperture, an air inlet, and an air passage between the air inlet and the at least one aperture on the annular outer wallbiased against the non-rotating spindle. A housing includes interior annular walls mounted in radially spaced relation with the annular outer wall of the stator to form an annular cavity therebetween, and at least one aperture formed through the interior annular wall, and air outlet, and an air passage between the at least one aperture and air outlet. A seal is inserted within the annular cavity and defines a radial air passage between the apertures defined within the stator annular outer wall and the housing interior annular wall. An annular bearing between the stator and housing is configured to allow the housing to rotate with respect to the stator.

A shaft seal is proposed, having an annular base body whereof one lateral surface forms a circumferential sealing surface and whereof the other, opposing, lateral surface has at least two circumferential sealing lips extending radially therefrom, between which an outwardly open outer cavity is delimited. To enable a coupling between a stationary body and a rotatable body arranged coaxially thereto which is suitable for pressure-medium transmission, the shaft seal is distinguished by a pressure-medium inlet in an outer wall of the base body and a pressure-medium outlet which leads into the outer cavity and is in fluid connection with the inlet.