A dual wheel tyre inflation pressure control system including a pair of vehicle wheels having tyre interiors providing first and second fluid chambers. A first valve arrangement is installed remote from the wheels and is connectable to a pressurised fluid source. A second valve arrangement, suitably mounted on one of the wheels, is connected to the first valve arrangement by means of first and second fluid connections. The second valve arrangement is controllably operable to connect the first fluid connection to either fluid chamber. Controlled variation of fluid pressure in and between the fluid connections is provided by the first valve arrangement to control said second valve arrangement for operating the tyre pressure control system to connect the second fluid chamber to the first valve arrangement, and to connect the first and second fluid chambers.

A tire-enhancement product has a container comprising a dissolvable packaging material; and a solute encased in the container that is inert to the solute. The container is configured to be placed in an interior volume of a tire, to which solvent can be added. The container is configured to dissolve when placed in a predetermined solvent, and the solute is configured to mix with the solvent to form a tire-enhancement mixture.

A depth gauge wheel for a row planter. The depth gauge wheel sets the planting depth for the seeds planted by the row planter. The depth gauge wheel sets planting depth by setting the cutting depth of the disk opener of the row planter. The depth gauge wheel also scrapes mud from the disk blade of the disk opener. The depth gauge wheel includes a rim, a tire attached to the rim and a ring attached to the rim. The tire contacts the surface of the ground to set the cutting depth of the disk opener and the ring scrapes mud from the disk blade of the disk opener.

A soil measure, such as a soil cone index, and a vehicle index indicating the amount of force the vehicle exerts on the ground as it travels over the ground, are obtained and compared to identify a soil damage score. The soil damage score can be mapped over a field and an agricultural vehicle can be controlled based upon the soil damage score. In another example, a detector detects a fill level of a material storage compartment on an agricultural vehicle. The inflation pressure of tires on the agricultural vehicle is controlled based upon the detected fill level.

A tire (1) for an agricultural vehicle comprises a working reinforcement (2), radially on the inside of a tread (3) and radially on the outside of a carcass reinforcement (4), the working reinforcement (2) comprising a multilayer component made up of a radial stack of at least two working layers (21, 22), and aims to improve the endurance thereof. The working reinforcement (2) is made up of a circumferential spiral winding of at least one turn of the multilayer component, the first and second circumferential ends (211, 221; 212, 222) of each working layer (21, 22) are circumferentially offset from one another, and the respective first circumferential ends (211, 221) of two consecutive working layers (21, 22) are likewise circumferentially offset from one another.

The invention relates to a hydraulic device including: a stator and a rotor, in which the rotor can rotate relative to the stator about a first axis of rotation; and a shaft mounted on the rotor such as to rotate therewith. The shaft has a wheel carrier provided at a proximal end thereof and designed to receive a rim and a tire. The shaft includes a through-channel extending from the proximal end to an opposing distal end. The hydraulic device includes an air chamber formed at the distal end of the shaft and connected to the through-channel. The through-channel and air chamber are produced such as to allow a flow of air in order to control the pressure of a tire.

A non directional pneumatic tire is provided for an agricultural irrigation system. The tire includes first and second side walls and a radially outer wall defining an internal inflation chamber. A non directional tread pattern is defined on the tire and includes a plurality of longitudinal protrusions positioned substantially parallel to a rotational axis of the tire. The longitudinal protrusions are arranged in first and second rows extending from the first and second side walls toward and across the equatorial plane of the tire. The longitudinal protrusions of the first and second rows circumferentially alternate with each other and there is a circumferential spacing between adjacent longitudinal protrusions at the equatorial plane so that no portion of one longitudinal protrusion circumferentially coincides with or overlaps another.

A method for actuating a tire-pressure regulating system of an agricultural vehicle combination includes monitoring a current operating status of an implement by a control unit and receiving data by the control unit indicative of a change in the current operating status of the implement. The method also includes communicating a command by the control unit to a tire-pressure regulating system of the change in the current operating status and controllably adjusting a tire inflation pressure in one or more tires of a tractor or the implement by the tire-pressure regulating system based on the data received by the control unit.

A vehicle includes a plurality of track systems, a fluid pump, a plurality of fluid lines fluidly connecting the fluid pump to at least some of the tires of the wheels of each of the track systems, a plurality of pneumatic inflation actuators, a plurality of pneumatic deflation actuators, and a system controller. The system controller is in electronic communication with the fluid pump, the plurality of pneumatic inflation actuators, and the plurality of pneumatic deflation actuators. The system controller is operable to selectively adjust fluid pressure in select ones of the wheels of any one of the track systems of the vehicle by actuating corresponding ones of the plurality of pneumatic inflation actuators and the plurality of pneumatic deflation actuators. A track system has at least one of the leading idler wheels, trailing idler wheels, and mid-roller wheels including a tire containing a fluid.

A wheel for a vehicle (e.g., a construction vehicle, an all-terrain vehicle, or other off-road vehicle) or other device, in which the wheel comprises a non-pneumatic tire and may be designed to enhance its use and performance and/or use and performance of the vehicle or other device, including, for example, to be able to be used longer and/or in more challenging conditions, such as, for instance, by being more thermally efficient (e.g., to avoid or reduce adverse effects such as rapid degradation in material properties that could otherwise arise due to excessive temperatures) and/or more resistant to cracking or other damage which could lead to premature failure (e.g., due to manufacturing artifacts and/or rocks and other hazards that can cut, chip, or tear it during use).