The invention is directed to a valve stem system (1) for tubeless wheels. The valve stem system (1) includes a valve stem body (2) with a first end (3) and a second end (4), wherein the second end (4) is located in a tire/rim-volume when mounted at the wheel. A first valve (5) is arranged at the second end (4) of the valve stem body (2). The first valve (5) is a self-sealing one-way valve. A second valve (10) is removably mountable at the first end (3) and is, when mounted, at least partially housed in the valve stem body (2). The second valve (10) comprises a valve stem core inserted in the valve stem body (2) and can be added or removed from the valve stem body (2) while pressure is maintained within the tire by the first valve (5). The invention further concerns a probe (30) for a valve stem system, a method to test the amount of sealant in a wheel and a refilling assembly (80) for a wheel.

The present disclosure relates to a valve assembly, in particular for use in a tire inflation system, the valve assembly comprising: a valve body comprising a first fluid port and a second fluid port; a piston disposed at least partially within the valve body and configured to be moved relative to the valve body between an open position and a closed position, wherein when the piston is in the open position the first fluid port is fluidly connected with the second fluid port, and wherein when the piston is in the closed position the first fluid port is fluidly isolated from the second fluid port, wherein when the piston is in the open position the first fluid port and the second fluid port are fluidly connected with one another via a fluid channel extending through the piston. The present disclosure further relates to a tire inflation system including said valve assembly.

A valve includes a tubular body having one end attached to a valve attachment hole; a valve opening; a valve member to open and close the valve opening; a shaft part extending axially along an the body; a valve body part extending radially from the shaft to slide in the opening; a valve chamber adjacent to the opening on one end side in the axial direction, connecting the opening and attachment hole entirely; a valve body holding mechanism holding the body part inside the opening as an operating force causing the member to move in the axial direction, allowing the body part to separate from the opening wherein the member receives an operating force moving towards one end side of the body; a retaining mechanism changes between a restricting state wherein the member is prevented from coming off, and a permitting state wherein the member is allowed to come off.

A valve includes a tubular body having one end attached to a valve attachment hole; a valve opening; a valve member to open and close the valve opening; a shaft part extending axially along an the body; a valve body part extending radially from the shaft to slide in the opening; a valve chamber adjacent to the opening on one end side in the axial direction, connecting the opening and attachment hole entirely; a valve body holding mechanism holding the body part inside the opening as an operating force causing the member to move in the axial direction, allowing the body part to separate from the opening wherein the member receives an operating force moving towards one end side of the body; a retaining mechanism changes between a restricting state wherein the member is prevented from coming off, and a permitting state wherein the member is allowed to come off.

A pneumatic valve for attachment to a source of high pressure gas comprises a valve body which comprises a gas inlet and a gas outlet. A rupturable membrane extends across the gas inlet. A membrane support element is slidably supported in the valve body for movement between an extended position and a retracted position, the membrane support element having a lower end engageable, in the extended position, with the rupturable membrane to support the rupturable membrane against rupture. The valve body further comprises a bore through which the membrane support element extends and one or more gas supply passages bypassing the bore for providing a gas flow path from the gas inlet to the gas outlet. The membrane support element is configured to be movable from the extended position to the retracted position to permit the rupturable membrane to rupture under the pressure of the high pressure gas.

An anti-spray joint 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 an anti-spray connector which includes a fitting sleeve, and the fitting sleeve has a threaded orifice, a through orifice, and a projected shoulder. The cylindrical base includes a cylindrical room, a stepped coupling segment, a conduit, and a first stepped portion. The valve bolt includes a post, a connecting disc, multiple spaced slots, and a first seal ring. A lock element includes at least one tangent plane, a stem, and a hollow cavity.

An anti-spray structure for a connection of an air nozzle of a tire of a vehicle and a connection hose of an air compressor, and the air compressor contains: a box, a sealant supply can, and a connection hose. The box accommodates 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 an anti-spray connector including a fitting sleeve. The fitting sleeve has a threaded orifice, a through orifice, and a projected shoulder. A cylindrical base includes a cylindrical room, a stepped coupling segment, a conduit, and a first stepped portion. A first spring is received into the cylindrical room. A valve bolt includes a post, a connecting disc, spaced slots, and a first seal ring. A lock element includes a hollow cavity, a hexagonal tab, and a tilted extension.

A valve includes a sleeve, a shaft supported inside the sleeve such as to be movable linearly and having one end positioned more forward than a first end face of the sleeve, a valve body extending sideways from one end of the shaft, an elastic member surrounding the sleeve and fixedly joined to an outer side face of the sleeve, a press-fit seal part connected to the elastic member and press-fit into a valve attachment hole of a component to which the valve is mounted to make a contact with an inner side face of the valve attachment hole, and a valve seat seal part connected to the elastic member and covering the first end face of the sleeve, for the valve body to make a contact with and separate from.

An air deflector that is at least partially disposable within a tubeless tire of a bicycle wheel includes a body. The body includes at least one wall defining an air input end and an air output end of the body. The body is attachable to a valve of the tubeless tire at the air input end, such that when air is introduced into the body via the valve, at least some of the air is deflectable by one or more walls of the at least one wall out of the body at the air output end.

An electronic unit for measuring operating parameters of a vehicle wheel, including: an inflation valve of the snap-in type having a valve body made of an elastically deformable material, and a rigid hollow tube, an electronics casing, and a device for attaching the electronic casing and of the inflation valve. The device for attaching the electronics casing and the inflation valve consists of a solid pin made from a material having a density lower than that of the material of which the rigid hollow tube is made and having longitudinal grooves that allow a flow of air to pass through the valve, a proximal portion of the pin being configured to be attached to the electronics casing, and a distal portion of the pin being configured to be attached to the rigid hollow tube of the inflation valve.