A tire-wheel assembly comprises a wheel coupled to a rotating shaft; an elastic tube disposed on an outer side of the wheel with respect to a radial direction, the interior of the tube being filled with air; a rigid protective ring disposed on an outer side of the tube with respect to the radial direction separated from the wheel; and a tread ring disposed on an outer side of the protective ring with respect to the radial direction, an inner circumferential surface of the tread ring contacting an outer circumferential surface of the protective ring.

Vehicle systems and components are set forth, which aim to reduce rolling friction caused in part by the contact between the vehicle's tires and the ground surface over which the vehicle is traversing. These systems and/or components thereof may increase the overall fuel efficiency of a vehicle. In the examples provided, the systems and/or components change the tread contact patch of one or more tires during movement of the vehicle.

Vehicle systems and components are set forth, which aim to reduce rolling friction caused in part by the contact between the vehicle's tires and the ground surface over which the vehicle is traversing. These systems and/or components thereof may increase the overall fuel efficiency of a vehicle. In the examples provided, the systems and/or components change the tread contact patch of one or more tires during movement of the vehicle.

A fore-aft self-balancing personal transportation device having a single wheel structure with multiple air chambers and air pressure equalization between the air chambers. Embodiments include dual tires on a single rim structure, or a single tire structure with multiple lobes, etc. Air passage between the air chambers may be internal through the rim or external via an air hose or related structure. The air chambers may be tubed or tubeless. Several different embodiments are disclosed.

The present invention relates to an explosion-proof tire, comprising a safety airbag, trigger sensors and a safety switch, wherein the safety airbag is arranged between a tire and a hub; the hub is provided with grooves; trigger devices of the safety airbag are arranged in the grooves; one end of each trigger sensor sticks into the tire; and the other end thereof is connected with a trigger device. The safety switch is arranged on the valve stem of the tire; and positive and negative electrodes on the valve stem are each connected with a trigger device. The safety switch disclosed by the present invention ensures that the safety airbag will not be triggered accidentally, and when a vehicle tire bursts, the safety airbag provided can instantly provide enough support force to ensure traffic safety.

The present invention relates to an explosion-proof tire, comprising a safety airbag, trigger sensors and a safety switch, wherein the safety airbag is arranged between a tire and a hub; the hub is provided with grooves; trigger devices of the safety airbag are arranged in the grooves; one end of each trigger sensor sticks into the tire; and the other end thereof is connected with a trigger device. The safety switch is arranged on the valve stem of the tire; and positive and negative electrodes on the valve stem are each connected with a trigger device. The safety switch disclosed by the present invention ensures that the safety airbag will not be triggered accidentally, and when a vehicle tire bursts, the safety airbag provided can instantly provide enough support force to ensure traffic safety.

The invention relates to a valve for a compartmentalized tube or tyre, including a number of ducts for passing and increased sealing. It therefore has one end for coupling to an inflation/deflation system; another end in contact with the rim; a flow channel between both, with opening by means of a cover solidly joined to a mobile rod. The valve has at least two cavities with connection means to the airtight compartments of the tube or tyre. One cavity is displaced solidly joined to the rod, allowing gas or liquid flow through the communication channel between the cavities when in the open position. The existence of friction surfaces are thereby eliminated, increasing the sealing, the maximum operating pressure and the useful life. Additionally, the number of items in contact with one another are reduced, allowing for a simpler manufacturing process by reducing the level of accuracy required for the components.

A flat tire airbag system has an inner tube having an inner portion adapted to be mounted upon the wheel of the pneumatic tire, and an outer portion adapted to support the tire when inflated. A tire pressure monitoring system is operably mounted to monitor pressure within the pneumatic tire, and an airbag inflation mechanism is provided for automatically inflating the inner tube responsive to the tire pressure monitoring system detecting a loss of pressure within the pneumatic tire.

A flat tire airbag system has an inner tube having an inner portion adapted to be mounted upon the wheel of the pneumatic tire, and an outer portion adapted to support the tire when inflated. A tire pressure monitoring system is operably mounted to monitor pressure within the pneumatic tire, and an airbag inflation mechanism is provided for automatically inflating the inner tube responsive to the tire pressure monitoring system detecting a loss of pressure within the pneumatic tire.

The present application relates to a tire (6) comprising: a tread portion (8) and side walls (10), said tread portion (8) and side walls (10) defining a main air chamber (12); at least two auxiliary chambers (14, 16, 18) formed in the tread portion (8); and an air transfer device (28) for transferring air between the main air chamber (12) and each of the auxiliary air chambers (14, 16, 18).