A rotary joint assembly for a tire inflation system is provided. The assembly includes an air seal for sealing an air passage, a lubricant seal for sealing the air seal from a lubricant, and a leakage reception space delimited by the air seal and the lubricant seal and fluidically isolated from the atmosphere.

A rotary joint assembly for a tire inflation system is provided. The assembly includes an air seal for sealing an air passage, a lubricant seal for sealing the air seal from a lubricant, and a leakage reception space delimited by the air seal and the lubricant seal and fluidically isolated from the atmosphere.

A wheel assembly is provided that includes a structure defining a wheel portion configured to receive a portion of a tire. The wheel assembly further includes a structure of the wheel portion defining an air channel from a face of the wheel portion to an area that receives the portion of the tire, an end of the air channel proximate to the face being configured to receive a valve, where the structure is further configured to receive a corrosion mitigation device within the air channel.

A wheel assembly is provided that includes a structure defining a wheel portion configured to receive a portion of a tire. The wheel assembly further includes a structure of the wheel portion defining an air channel from a face of the wheel portion to an area that receives the portion of the tire, an end of the air channel proximate to the face being configured to receive a valve, where the structure is further configured to receive a corrosion mitigation device within the air channel.

A TPMS sensor with an externally replaceable battery is disclosed. The valve stem facilitates battery replacement with a valve stem core designed to removably secure a battery within the valve stem and a sensor configured with an electrical connection designed to connect the sensor to power from the battery. The valve stem has an interior cavity configured to retain the valve stem core. The battery may be at least partially retained within the valve stem. The sensor may be configured in a sensor body connected to an end of the valve stem distal from the valve stem core. The electrical connection may comprise a spring-loaded terminal configured to connect or disconnect the sensor and battery as the battery is inserted or removed from the valve stem through a valve stem end proximal to the valve stem core, permitting battery replacement without removing or deflating a tire configured with the sensor.

A dome cap and tail plug assembly for a flow control device include a dome that attaches to an upper end of a body of the flow control device and a tail plug that screws into a top of the dome cap. A seal is provided between the dome cap and the tail plug. The seal can be formed by one or more sealing elements, such as O-rings, positioned between the dome cap and the tail plug. The seal can also be provided by engagement between a shoulder on the tail plug bearing against an end face of the dome cap. Also, threads used to couple the tail plug to the dome cap could be conical threads, which also help to provide a seal between the dome cap and the tail plug.

A device for adjustment of pressure in tires includes a chamber with shape memory and a valve. The valve is a three-way valve with inputs interconnected with the external environment and the tire internal space, where one input is fitted with a valve, the next input is connected to one end of the chamber with shape memory, and the last input is interconnected with the closure element. The device for adjustment of pressure in tires includes the chamber with shape memory interconnected with the external environment through an input and with the tire chamber through an output and fitted with at least one valve. The length of the chamber in the direction of tire rotation equals 0.001 to 0.5 of the tire perimeter, where the volume of the chamber before deformation to volume of the chamber during deformation ratio is the same or higher then the desired tire pressure to pressure of the external environment ratio.

A device for adjustment of pressure in tires includes a chamber with shape memory and a valve. The valve is a three-way valve with inputs interconnected with the external environment and the tire internal space, where one input is fitted with a valve, the next input is connected to one end of the chamber with shape memory, and the last input is interconnected with the closure element. The device for adjustment of pressure in tires includes the chamber with shape memory interconnected with the external environment through an input and with the tire chamber through an output and fitted with at least one valve. The length of the chamber in the direction of tire rotation equals 0.001 to 0.5 of the tire perimeter, where the volume of the chamber before deformation to volume of the chamber during deformation ratio is the same or higher then the desired tire pressure to pressure of the external environment ratio.

A highflow air coupling system is provided. The highflow air coupling system has a valve chamber housing having a plurality of openings including a user serviceable port and a reversible air flow valve. The interior of the valve chamber housing has a multi-tiered main valve with multiple large holes located on multiple levels. A unique exterior grip of the housing allows for easy grasping of the housing chamber. The device and system are especially suitable for use with, for example, inflating tires, especially in a military environment.

A highflow air coupling system is provided. The highflow air coupling system has a valve chamber housing having a plurality of openings including a user serviceable port and a reversible air flow valve. The interior of the valve chamber housing has a multi-tiered main valve with multiple large holes located on multiple levels. A unique exterior grip of the housing allows for easy grasping of the housing chamber. The device and system are especially suitable for use with, for example, inflating tires, especially in a military environment.