A pneumatically controllable valve assembly, in particular for use in a tire inflation system, includes a first fluid port, a second fluid port, and a movable member configured to be moved between an open position and a closed position. When the movable member is in the open position the first fluid port is in fluid communication with the second fluid port. When the movable member is in the closed position the first fluid port is fluidly isolated from the second fluid port. A first pneumatic actuator is in fluid communication with the first fluid port. The first pneumatic actuator is configured to bias the movable member toward the open position. A second pneumatic actuator is configured to bias the movable member toward the closed position. The valve assembly also includes a flow restrictor. The first fluid port is in fluid communication with the second pneumatic actuator by way of the flow restrictor, at least when the movable member is in the open position.

A wheel end assembly for a tire pressure management system including an axle having an axle end portion and a rotary joint assembly disposed outboard of the axle end portion. The rotary joint has a rotary hub, a non-rotating tube spindle at least partially disposed within the rotary hub, the tube spindle having a tube spindle hollow central chamber, an air seal provided between the rotary hub and the tube spindle, and a bearing assembly provided between the rotary hub and the tube spindle. The bearing assembly is positioned outboard of the air seal.

Disclosed herein are devices and systems for continuous control of tire pressure. In one aspect, a device for continuously controlling tire pressure includes a bracket, a fixed non-rotating member fixedly attached to the bracket, and a non-fixed rotating member rotatably attached thereto. The fixed non-rotating member has at least one first seal surface, the at least one seal surface configured to be in fluid communication with a compressed air source. The non-fixed rotating member has at least one second seal surface, wherein an air chamber defined within a volume between interacting the at least one first seal surface and the at least one second seal surface causes fluid communication between an interior space of the tire and the compressed air source.

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 system and method provide automatic vehicle tire air pressure monitoring, warning, and maintenance for a vehicle. The vehicle includes a controller, wheel rims having tires coupled to wheel hubs, an air compressor configured to inflate the tires, a pressure sensor contained within each wheel rim on a vehicle for measuring air pressure within a tire located on each wheel rim, the compressor coupled to the tire rims for providing needed pressurized air, the compressor, an air pressure line connecting the compressor to the wheel rims, a driver display providing a warning to a driver, and a controller. The controller reads an air pressure value of the air pressure within each tire, determines whether the air pressure values within each tire, when one or more of the air pressure values are below the pre-determined value, activates the compressor to add air to each of the four tires needing the air pressure, and provides the driver a visual status of the air pressure values within in each of the tires and a visual status of the compressor state.

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.

A valve fitting includes a fitting body defining a fitting passageway, supply and working ports in fluid communication with the fitting passageway, a supply port coupler operable to connect the supply port with an associated feed port coupler providing a pressurized fluid, a working port coupler operable to connect the working port with an associated tire of a tire assembly of an associated work vehicle, a supply valve moveable in the fitting passageway between a first position closing the fitting passageway from the supply port and a second position opening the fitting passageway to the supply port, a biasing assembly biasing the supply valve towards the first position, and an actuator assembly comprising an actuator member operable to urge the supply valve towards the second position against the bias of the biasing assembly in response to the associated feed port coupler being connected with the supply port coupler.

A system for detection of non-pneumatic tire loading includes a non-pneumatic tire. The non-pneumatic tire includes a ground-contacting annular tread, a central rim, and at least one spoke disk disposed between the rim and the tread. The spoke disk includes an inner ring mounted on the central rim, an outer ring, and spokes extending radially between the inner ring and the outer ring. A shear band is disposed between the outer ring of the spoke disk and the tread. A flange is disposed on an outboard surface of the spokes of the spoke disk. Indicating means are formed on the outboard surface of the plurality of spokes of the spoke disk radially outwardly of the flange. The flange interfaces with the indicating means when the tire is in an overloaded state or is in need of replacement.

An inflation viewing device has a main body which is externally provided with a transparent viewing portion and internally provided with an inner passage where an air path assembly is arranged. An air entrance connector is operatively connected to an external air source and to a first end of the main body. An air exit connector is connected to a second, opposed end of the main body and to an inflation valve. A guide spacer is provided between the air entrance connector and the main body. The guide spacer has an inner passage having a wider section in communication with the inner passage of the main body and a reduced section defining a communication opening with the air entrance connector. A filter is arranged in the communication opening. A plunger, biased by a spring, is slidably arranged within the inner passage of the guide spacer and guide section of the main body inner passage.

Disclosed herein are devices and systems for continuous control of tire pressure. In one aspect, a device for continuously controlling tire pressure includes a bracket, a fixed non-rotating member fixedly attached to the bracket, and a non-fixed rotating member rotatably attached thereto. The fixed non-rotating member has at least one first seal surface, the at least one seal surface configured to be in fluid communication with a compressed air source. The non-fixed rotating member has at least one second seal surface, wherein an air chamber defined within a volume between interacting the at least one first seal surface and the at least one second seal surface causes fluid communication between an interior space of the tire and the compressed air source.