A check structure for a connection of an air nozzle of a tire and a connection hose of an air compressor, the air compressor contains: a box, a sealant supply can, and a connection hose. The box includes a body of the air compressor. The sealant supply can includes an open segment and a supply tube. The connection hose includes a first segment and a second segment. The second segment has a check connector which includes a fitting sleeve, and the fitting sleeve has a threaded orifice, a through orifice, and a projected shoulder. A cylindrical base includes a hollow room, a stepped coupling segment, a conduit, and a tilted fence. A valve bolt includes a post, a connecting disc, multiple peripheral channels, a neck, multiple spaced slots, and a seal ring. A first spring is received into the conduit from the stepped coupling segment of the cylindrical base.

An anti-spray joint structure of a connection hose of a vehicle air compressor, the vehicle air compressor contains: a box, a sealant supply can, and a connection hose. The box includes a body accommodated in the box and started by a power supply to produce compressed airs. The sealant supply can includes an open segment for accommodating chemical sealant, and the sealant supply can includes a supply tube arranged on the open segment. The connection hose includes a front connector and a rear connector. The rear connector is an anti-spray joint structure and includes a first segment and a second segment removed from and connected with the first segment, and the first segment is connected with the second segment which has a channel of different sizes and shapes so as to be applicable for different tires and to avoid eruption of the chemical sealant.

A device and method for dispensing air and/or sealant to a tire of a vehicle. Power supply for the air compressor is obtained via powered USB instead of the typical 12 V cigarette lighter connector. The position of the tire which is being inflated can also be determined via the data interface of the USB port. By communication between compressor and the vehicle systems interface, the compressor can automatically switch off when the recommended tire pressure has been reached.

A small amount of high viscosity sealant is injected under high pressure into pneumatic tire punctures. By eliminating the steps of wheel, tire and tube removal and reassembly, air leakage is permanently blocked in seconds reducing down time by two orders of magnitude.

A device and method for dispensing air and/or sealant to a tire of a vehicle. Power supply for the air compressor is obtained via powered USB instead of the typical 12 V cigarette lighter connector. The position of the tire which is being inflated can also be determined via the data interface of the USB port. By communication between compressor and the vehicle systems interface, the compressor can automatically switch off when the recommended tire pressure has been reached.

An inflation system for tubeless bicycle tires may include a valve, a sealant canister, a pump head, and/or a valve core adapter. The valve, sealant canister, and pump head may collectively facilitate sealant injection into a tire by a user. The valve has an external valve seat, and includes a valve body, a valve stem extending through the length of the valve body, and a retaining mechanism for the valve stem disposed interior to the valve body. The valve stem is configured to move relative to the valve body, such that a resilient seating surface disposed at a proximal end of the valve stem is displaced relative to a valve seat formed by an exterior surface of a proximal end of the valve body.

There is provided a crack repairing method for suppressing a crack growth in a wall portion. The crack repairing method includes an injection step in which working fluid is injected into a crack formed into a surface of the wall portion of a target object and a vibration step in which vibration is applied to the working fluid in a direction from an crack initiation portion of the crack on the surface to an inner end portion of the crack. The crack repairing method further includes a deformation step in which a cavity is generated in the working fluid by the applied vibration and compressive residual stress is generated at the inner end portion of the crack.

A combination structure for a hose connected between a tire and an air compressor is disclosed. The air compressor includes a box in which a compressor unit and a sealant bottle are installed. The sealant bottle has an inlet and an outlet. The inlet of the sealant bottle is connected to one outlet tube of the compressor unit. The hose has a first end and a second end. The first end of the hose is adapted to be connected to the outlet tube of the sealant bottle. The second end of the hose can be connected to the combination structure, which generally includes a cap, a core element, and a plug. With the combination structure, the chemical sealant contained in the sealant bottle can be prevented from flowing out to contaminate objects due to incorrect operation or negligence.

A new system a comprising a balanced belt that forms a ring around a wheel rim and enables smart wheel functionalities as positioning, sensing, actuation and communication hub is presented. The belt can be implemented as a removable apparatus locked around the wheel rim or as an integrate apparatus embedded in the wheel rim by a proper wheel rim manufacturing modification. The belt contains a tank filled with a sealing foam, which, in the event of a punctured tire, can be expelled out of the tank and injected into the inner part of the tire to repair the hole. With respect to the state-of-the-art systems, the proposed self-repairing tire solution, allows to avoid the cumbersome manual tire repairing operations, to save driver stress and time and to enhance car safety. Moreover, the proposed apparatus, by preserving punctured tire damaging, is very cost-effective respect to competitor solutions and contributes to carbon dioxide emission reduction. Finally, the proposed system is easy assembling, adaptable to different wheel rim sizes and reusable in case of car replacement.

An air compressor contains: a box in which the air compressor and a sealant supply device are accommodated. The air compressor is configured to produce high-pressure airs, and the sealant supply device has an air inlet pipe and a supply pipe. An air outlet pipe of the air compressor is connected with the air inlet pipe, and the air compressor is detachable from the sealant supply device. The air inlet pipe is configured to receive the high-pressure airs from the air compressor, the supply pipe is configured to output chemical sealant from the sealant supply device, and a tube is configured to communicate the air inlet pipe with the supply pipe. A rotation element includes a driven portion and a central stem. The rotation element is fitted on the second sub-tube. The central stem of the rotation element abuts against a top of the tube.