A pressure adjustment device for adjusting air pressure within a tire of a vehicle is disclosed. The device includes a housing formed of a cap and a base and including a piston, a spring and an air valve, wherein the cap includes an air inlet and the base includes an air outlet that is in fluid communication with the neck, wherein the piston moves proximally to compress the spring in response to a presence of a centrifugal force due to the vehicle traveling at least at a predetermined speed, where the proximal movement of the piston activates the air valve thereby enabling fluid to flow into the housing, and where the spring is configured to decompress when the centrifugal force decreases thereby deactivating the air valve and compressing the fluid within the housing distally out the air outlet toward the tire.

A pressure adjustment device for adjusting air pressure within a tire of a vehicle is disclosed. The device includes a housing formed of a cap and a base and including a piston, a spring and an air valve, wherein the cap includes an air inlet and the base includes an air outlet that is in fluid communication with the neck, wherein the piston moves proximally to compress the spring in response to a presence of a centrifugal force due to the vehicle traveling at least at a predetermined speed, where the proximal movement of the piston activates the air valve thereby enabling fluid to flow into the housing, and where the spring is configured to decompress when the centrifugal force decreases thereby deactivating the air valve and compressing the fluid within the housing distally out the air outlet toward the 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).

A self-healing pneumatic tire, which uses the sealant stored in the tire to fix a leak, is disclosed.

A self-healing pneumatic tire, which uses the sealant stored in the tire to fix a leak, is disclosed.

A device for inflating a tire includes a forward sleeve including an internally threaded head; an air intake assembly including a joining member secured to the forward sleeve and having a constricted section and an air inlet; an air intake extending out of the joining member at an acute angle and having an air channel for communicating with the air inlet through the constricted section, and a connector; and a rear sleeve secured to the joining member; and a valve assembly including a rod through both the rear sleeve and the joining member; a mounting sleeve in the forward sleeve and having a groove at a first end, the groove being in the internally threaded head, and a fitting hole communicating with the groove; a flexible tubular member in the mounting sleeve; a handle secured to the rod; and a snap ring on the rod.

A device for inflating a tire includes a forward sleeve including an internally threaded head; an air intake assembly including a joining member secured to the forward sleeve and having a constricted section and an air inlet; an air intake extending out of the joining member at an acute angle and having an air channel for communicating with the air inlet through the constricted section, and a connector; and a rear sleeve secured to the joining member; and a valve assembly including a rod through both the rear sleeve and the joining member; a mounting sleeve in the forward sleeve and having a groove at a first end, the groove being in the internally threaded head, and a fitting hole communicating with the groove; a flexible tubular member in the mounting sleeve; a handle secured to the rod; and a snap ring on the rod.

A valve assembly is configured to secure on a hole of a rim on which a tire having at least two air chambers is mounted. The valve assembly includes a main body, a securing means, at least two valve bodies and at least two valves. The main body includes at least two transfer air passage respectively connected to each of the air chambers. The securing means is configured to secure the main body and also the at least two valve bodies on the rim. The at least two valve bodies are respectively disposed on the main body and each of the at least two valve bodies has an inlet air passage connected to one of the transfer air passages of the main body. The at least two valves are respectively attached to each of the at least two valve bodies.

A valve assembly is configured to secure on a hole of a rim on which a tire having at least two air chambers is mounted. The valve assembly includes a main body, a securing means, at least two valve bodies and at least two valves. The main body includes at least two transfer air passage respectively connected to each of the air chambers. The securing means is configured to secure the main body and also the at least two valve bodies on the rim. The at least two valve bodies are respectively disposed on the main body and each of the at least two valve bodies has an inlet air passage connected to one of the transfer air passages of the main body. The at least two valves are respectively attached to each of the at least two valve bodies.

A self-healing pneumatic tire, which uses the sealant stored in the tire to fix a leak, is disclosed.