An air maintenance tire assembly includes a tire having a tire cavity bounded by first and second sidewalls extending to a tire tread region, air pumping means for generating pressurized air for maintaining air pressure within the tire cavity at a preset pressure level, the air pumping means including a soft tubing and compression fittings for mitigating dynamic loading on the compression fittings, and a valve housing disposed adjacent an outward end of the valve stem and operative to selectively open and close pressurized air flow from the valve stem internal passageway into the tire cavity. The valve housing is connected to the air pumping means by the soft tubing and compression fittings for mitigating dynamic loading on the compression fittings.

A valve stem for controlling inflation and deflation is provided. The valve stem includes a valve body having a central passage and a lateral port venting to the atmosphere. A valve core can be positioned within the central passage and configured to permit gas flow into the central passage. A collar is configured to surround an intermediate portion of the valve body, with the collar movable between a first position, where the collar occludes the lateral port to prohibit gas flow out of the lateral port, and a second position, where the collar opens the lateral port to permit gas flow from the central passage through the lateral port. A pressure set assembly can couple to the valve body and be set to a pressure at which the pressure set assembly closes to prohibit gas flow through the pressure set assembly and through the lateral port.

A valve stem for controlling inflation and deflation is provided. The valve stem includes a valve body having a central passage and a lateral port venting to the atmosphere. A valve core can be positioned within the central passage and configured to permit gas flow into the central passage. A collar is configured to surround an intermediate portion of the valve body, with the collar movable between a first position, where the collar occludes the lateral port to prohibit gas flow out of the lateral port, and a second position, where the collar opens the lateral port to permit gas flow from the central passage through the lateral port. A pressure set assembly can couple to the valve body and be set to a pressure at which the pressure set assembly closes to prohibit gas flow through the pressure set assembly and through the lateral port.

An assembly for a tire inflation system includes a ring portion. The ring portion has an outer surface and an inner surface. A first projection and a second projection each extend from the inner surface. A valve assembly is connected to the ring portion and disposed in from the outer surface.

An assembly for a tire inflation system includes a ring portion. The ring portion has an outer surface and an inner surface. A first projection and a second projection each extend from the inner surface. A valve assembly is connected to the ring portion and disposed in from the outer surface.

A bolt together wheel assembly with deflation system includes an inner wheel half, an outer wheel half, a bolt cover ring, and a removable valve stem. Clamping bolts and clamping nuts secure the outer wheel half to the inner wheel half. Venting port plugs secure the bolt cover ring to the outer wheel half over the clamping bolts. Loosening one or more of the venting port plugs to access the clamping bolts opens a seal to a vent port within the inner wheel half and releases pressurized air from a tire on the wheel, ensuring that the tire is deflated before the wheel can be disassembled.

A bolt together wheel assembly with deflation system includes an inner wheel half, an outer wheel half, a bolt cover ring, and a removable valve stem. Clamping bolts and clamping nuts secure the outer wheel half to the inner wheel half. Venting port plugs secure the bolt cover ring to the outer wheel half over the clamping bolts. Loosening one or more of the venting port plugs to access the clamping bolts opens a seal to a vent port within the inner wheel half and releases pressurized air from a tire on the wheel, ensuring that the tire is deflated before the wheel can be disassembled.

A tire valve assembly is disclosed. The tire valve assembly includes a gas nozzle structure, a movable rod, an air pipe, an elastic close contact pad, a screw nut, an elastic O-ring and a dust cap. The tire valve assembly can use a punched hole on the end of the movable rod to receive the tire repair liquid flowing into the air pipe. Take out the movable rod during maintenance to remove the tire repair liquid in the punched hole. When the movable rod is reinstalled in the air pipe, the tire repair liquid remaining on the inner wall of the air pipe will also be squeezed out of the air pipe. With this, the tire repair liquid will no longer block the tire valve assembly.

A valve with elastic deformation and having a tubular core adapted to form an internal air passage from an external longitudinal end of the valve to an internal longitudinal end, the tubular core being at least partially surrounded by a sleeve of elastically deformable material and having a bulb shape widening in proximity to the internal longitudinal end of the valve and ending in an internal longitudinal bulb end. A cup made of rigid material includes a first portion facing an internal longitudinal bulb end face and at least one second portion curved away from the internal longitudinal end of the valve, the cup serving as a way of limiting deformation of the bulb.

A valve with elastic deformation and having a tubular core adapted to form an internal air passage from an external longitudinal end of the valve to an internal longitudinal end, the tubular core being at least partially surrounded by a sleeve of elastically deformable material and having a bulb shape widening in proximity to the internal longitudinal end of the valve and ending in an internal longitudinal bulb end. A cup made of rigid material includes a first portion facing an internal longitudinal bulb end face and at least one second portion curved away from the internal longitudinal end of the valve, the cup serving as a way of limiting deformation of the bulb.