The invention concerns a fixing device for fixing a measuring sensor, such as a tire pressure sensor inside a tire cavity on a vehicle rim, in particular utility vehicle rim, comprising a band-shaped tension belt, which carries a receiving device for the measuring sensor: The invention is characterized in that the tension belt contains at a first end an eyelet for threading a second end opposite the first end, and starting from the second end and away from the first end on the surface of the tension belt, two textile fields are positioned behind one another in the longitudinal direction of the tension belt, one of which is fitted with barbed hooks and the other with loops to form together a Velcro fastener after folding the textile fields together on top of each other.

A self-inflating tire assembly includes an adjustable valve having: a housing having first end and a second end, and a central bore which extends from the first end to the second end; a piston slidably mounted within the central bore at the first end of the housing, a cap mounted in the second end of the housing forming a chamber with the housing, wherein a spring is mounted within the chamber and having a first end for engagement with the piston and a second end for engagement with a bottom wall of the chamber, said cap further comprising a fluid chamber projecting from the bottom wall of the chamber, wherein the piston is movable to seal the fluid chamber, wherein the housing is made from a material having a higher coefficient of thermal expansion than the material of the fluid chamber.

A pressure controlled valve assembly has a housing with a pressure controlled valve moveable between an open and closed position with respect to a valve seat for controlling communication between a pneumatic supply and a pneumatic pressure control source. The housing also has first and second passageways with a pair of check valves in each passageway. Each passageway is connectable to a reversible pump such that when the pump operates in one direction one pair of check valves allow flow while the other pair of check valves prevents backflow.

A self-inflating tire assembly includes an adjustable valve having: a housing having first end and a second end, and a central bore which extends from the first end to the second end; a piston slidably mounted within the central bore at the first end of the housing, a cap mounted in the second end of the housing forming a chamber with the housing, wherein a spring is mounted within the chamber and having a first end for engagement with the piston and a second end for engagement with a bottom wall of the chamber, said cap further comprising a fluid chamber projecting from the bottom wall of the chamber, wherein the piston is movable to seal the fluid chamber, wherein the housing is made from a material having a higher coefficient of thermal expansion than the material of the fluid chamber.

An actuator for a tire inflation system, the actuator having a first component that has a first fluid passage and a second component having a second fluid passage and a sealing surface for sealing engagement with a rotatable component of a wheel assembly. The second component is movable relative to the first component between a first position, in which the first fluid passage is isolated from the second fluid passage and the sealing surface is spaced from the rotatable component, and a second position, in which the first fluid passage is in fluid communication with the second fluid passage and the sealing surface is in sealing engagement with a rotatable component.

An actuator for a tire inflation system, the actuator having a first component that has a first fluid passage and a second component having a second fluid passage and a sealing surface for sealing engagement with a rotatable component of a wheel assembly. The second component is movable relative to the first component between a first position, in which the first fluid passage is isolated from the second fluid passage and the sealing surface is spaced from the rotatable component, and a second position, in which the first fluid passage is in fluid communication with the second fluid passage and the sealing surface is in sealing engagement with a rotatable component.

A valve stem assembly for a tire includes a removable grommet of a plurality of grommets having different shapes and sizes. The removable grommets allow the valve stem assembly to be used on a variety of rims. Each grommet fits into distinct holes within the rims. The valve stem assembly also includes a valve stem body that receives the removable grommets and an attachment end that encloses a valve core within the valve stem body. A cap may cover the valve core and attachment end.

An adjustment structure of a Presta valve for a bicycle tire contains: an outer stem, a reinforcement stem, and a fitting sleeve. The outer stem includes a flat extension extending outward from a bottom of the outer stem, and the outer stem includes a coupling portion formed on the bottom of the outer stem. The reinforcement stem includes a hollow portion defined in the reinforcement stem, and the reinforcement stem includes a female threaded portion arranged on an inner wall of a bottom of the reinforcement stem. The fitting sleeve includes multiple ribs arranged on an upper end of an outer wall of the fitting sleeve. Furthermore, the fitting sleeve further includes a recess defined on a lower end of the outer wall thereof so as to retain with the flat extension of the outer stem.

A valve for air chambers includes a fixed body and a mobile selector body, wherein the mobile selector body is disposed coaxially in the fixed body. The mobile selector body is configured to slide with respect to the fixed body. The mobile selector body has a first position of use, associated during use to at least a first outlet, and a second position of use, associated during use to at least a second outlet.

A valve stem system includes a valve stem that is fluidly coupled to a tire thereby facilitating the valve stem to selectively inflate and deflate the tire. A sensing unit is coupled to the valve stem and the sensing unit is visible on the valve stem. The sensing unit is in fluid communication with the valve stem to sense air pressure within the tire thereby facilitating the sensing unit to display the air pressure within the tire. A valve stem assembly includes a pressure sensing body and a valve core configured to threadedly engage the tire stem and regulate air flow from a tire. The pressure sensing body includes plunger that responds to pressure fluctuations in the tire and provides a continuous measurement of air pressure.