The invention relates to a tyre valve for a pneumatic tyre of a vehicle, having a valve stem extending from the air inlet end to the air outlet end and having an outside thread on its outside circumference and a collar at its air outlet end for a rim well carrying the pneumatic tyre and a fastening thread for an air pressure sensor or other device to be fastened to the valve stem and positioned inside the pneumatic tyre, exhibiting a union nut with an inside thread for screwing onto the outside thread in order to clamp the rim base between the union nut and the collar, with the valve stem being inserted through a rim bore, with a plastic valve cap, with a deformable element located on the outside circumference of the valve stem and/or an inside circumference of the union nut. The tyre valve according to the invention is characterised in that the union nut and, if the deformation element is located on the inside circumference of the union nut, also the deformation element, exhibit a minimum inside diameter that exceeds the maximum outside diameter of the valve cap.

A mounting stem may receive an inflation valve and a tire pressure monitoring system sensor. The mounting stem may include a hollow stem including a distal end and a proximal end. The mounting stem may further include an enlarged dome formed on the proximal end and defining a dome shoulder facing distally for engaging a wheel rim. The dome may include a dome height extending proximally from the dome shoulder. The mounting stem may also include a longitudinal bore extending along a longitudinal axis from the distal end partially into the dome. A plurality of lateral bores may communicate the longitudinal bore with an outer surface of the dome, and may include lateral bore diameters at least 25% of the dome height. The lateral bores may be located closer to the proximal end than to the dome shoulder. The dome may also include a threaded TPMS mounting hole defined therein.

A tire pressure monitoring system with a tire valve and a tire pressure monitoring unit includes a plastic housing, in which a pressure sensor for measuring the tire pressure and a transmitter for wirelessly transmitting tire pressure data are arranged. The tire pressure monitoring unit is attached to a stem of the tire valve and the stem comprises latching recesses, into which a latching element of the tire pressure monitoring unit engages. The latching element is realized integrally with a wall of the housing. A method for installing a tire pressure monitoring system on a rim is furthermore proposed.

A tire monitoring system with mounting features on a housing provide for positioning through a wide range of angles. Accordingly, the system can be positioned on an a variety of wheel rim/valve combinations. The tire monitoring apparatus includes two opposed wings provided on the housing to facilitate the range of positioning angles at which the housing can be positioned with respect to a valve base. Each opposed wing has a same exterior surface radius of curvature and the wings are clamped between a base plate and a clamp plate at the desired angle.

The present invention relates to the field of tire pressure detection technologies, and discloses a tire pressure sensor, including: a sensor assembly provided with a through hole; a valve assembly including a valve rod, a valve cover mounted to one end of the valve rod, a rod sleeve sleeved between two ends of the valve rod and a fastener connected to the other end of the valve rod through threads, one of the fastener and the valve rod passing through the through hole, and the fastener and the valve rod clamping the sensor assembly, where there are at least two sets of valve assemblies, the at least two sets of the valve assemblies being alternatively connected to the sensor assembly, a rod sleeve of one of the at least two sets of the valve assemblies being made of a metal material, and a rod sleeve of the other of the at least two sets of the valve assemblies being made of a rubber material. The at least two sets of valve assemblies with different specifications may alternately be connected to the sensor assembly, and a user may mount, according to requirements, a valve assembly that meets the requirements.

The invention relates to the field of tire pressure detection technologies, and discloses a tire pressure sensor including: a valve assembly including a mounting portion and an elastic telescopic structure mounted to the mounting portion, the elastic telescopic structure elastically extending and retracting on at least one side of the mounting portion; a sensor assembly having two opposite clamping surfaces, at least one of the two clamping surfaces being provided with a locking hole, the mounting portion being located between two of the clamping surfaces, and the elastic telescopic structure being inserted into the locking hole. After the elastic telescopic structure is shortened, the mounting portion of the valve assembly may be inserted between the two clamping surfaces. When the mounting portion of the valve assembly is located between the two clamping surfaces, the elastic telescopic structure may be extended and inserted into the locking hole automatically, so that the valve assembly and the sensor assembly may be installed conveniently, and no additional tools are required.

A tire state monitoring device that is able to stabilize fixing of a sensor unit is provided. A tire state monitoring device includes a tire valve mounted on a tire wheel, a cylindrical nut screwed onto the valve stem of the tire valve, and a sensor unit that detects a tire state and transmits a detection result to an external part. A nut insertion hole, into which the cylindrical nut is inserted, is formed in the sensor unit. An elastic ring member is fitted on the outer peripheral surface of the cylindrical nut and elastically deforms in the radial direction of the cylindrical nut while the cylindrical nut is kept inserted in the nut insertion hole. The sensor unit is held by the cylindrical nut by a resilient force of the elastic ring member.

A holding structure of a tire air pressure detecting device includes a tire air pressure detecting device (23) which is held by a screw shaft (43) of a tire valve (30), a fixing nut (44) which is screwed to the screw shaft (43) and configured to fix the tire valve (40) to a wheel rim (30), a holding sleeve (50) which is screwed to the screw shaft (43) and configured to hold the tire air pressure detecting device (23) on the screw shaft (43), an elastic member (45) which is sandwiched between the tire air pressure detecting device (23) and a device supporting portion (60) including at least one of the fixing nut (44), the holding sleeve (50) and the wheel rim (30) in an axial direction of the screw shaft (43), and a rotation restricting portion (48) which is configured to restrict rotation of the tire air pressure detecting device (23) around the screw shaft (43) between the elastic member (45) and the tire air pressure detecting device (23).

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 tire pressure monitor includes a printed circuit board (PCB) and a sealed pressure chamber mounted to the PCB. The tire pressure monitor also includes a piston mounted adjacent to the sealed pressure chamber. The piston is configured to contact the sealed pressure chamber in response to an applied pressure. The tire pressure monitor also includes a liquid within the sealed pressure chamber. Translation of the piston causes the liquid to apply pressure to a pressure sensor. The pressure sensor is mounted within the sealed pressure chamber, and is configured to detect the applied pressure.