A double-use nozzle adapter includes a main body, a switch unit, and a needle unit. The switch unit includes a shifting member and two rigid retaining members. The rigid retaining members are arranged between the shifting member and the main body. The shifting member shifts the rigid retaining member between a first position and a second position. The needle unit is slidably installed in the main body and includes a needle. In the first position, the shifting member drives the rigid retaining member to press against the needle, thereby preventing the needle from moving with respect to the main body and making the needle connectable to a Schrader valve. In the second position, the rigid retaining member moves between the shifting member and the main body, so as to allow the needle to move with respect to the main body and make the needle connectable to a Presta valve.

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.

An inflation/deflation system for a tire in tire systems such as those having an inner bladder and an outer ground engaging tire is provided in which the inflation/deflation system is adapted to inflate/deflate a tire, inflate a bladder, and inflate a tire utilizing pressurized air from the bladder. The system utilizes a specialized valve and passageway system which utilizes pressurized fluid to operate a timer wheel valve to inflate the tire and/or bladder without requiring electric power at the wheel and utilizes a low power function to inflate the tire from the bladder. The utilization of the bladder to provide a quick tire inflation is particularly useful in agricultural applications utilizing tire with large volumes.

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 tire inflation valve associable with a tire pressure monitoring system (TPMS) sensor includes a stem ending in a head equipped with a head body and an adjustable insert associable with the TPMS sensor by a connection element and hinged to the head body to rotate about a transverse axis and allow position adjustment of the TPMS sensor. The adjustable insert allows modifying inclination of the TPMS sensor according to different use conditions.

A valve assembly for a tire pressure control system used to control tire pressure of a vehicle has a unitary body and one or more valves. The unitary body has attachment points for mounting the unitary body to a vehicle wheel end, one or more valve cavities formed in the unitary body, and a plurality of air passages formed in the unitary body. The plurality of air passages have an air supply passage that is connectable to an air supply and a tire supply chamber for connecting to a tire of the vehicle. The air supply passage and the tire supply chamber are connected to each of the one or more valve cavities. Each valve has a valve element mounted to the valve cavity, an air supply chamber in communication with the air supply passage, and a tire supply chamber in communication with the tire supply passage.

A tire pressure management system includes at least an axle enclosing a pressurized fluid, a hubcap supported by the axle and having an interior and an exterior, a rotary union axially aligned with the axle and mounted to the hubcap, the rotary union includes at least rotary union housing providing a central bore, a fluid conduit having upstream and downstream ends, a first bearing and a second bearing. Each of the bearings are in contact engagement with the fluid conduit via an inner race, and in pressing engagement with a bearing sleeve via an outer race, the bearing sleeve in pressing contact with the central bore; and a first and second seal, the first seal is disposed between the first bearing and the downstream end of the fluid conduit, and the second seal is disposed between the second bearing and the upstream end of the fluid conduit.

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.