| 摘要 |
The invention relates to a valve for a compartmentalised chamber or tyre, including duct openings for passing and increased sealing. For this purpose, the valve is provided with one end for being coupled to an inflation/deflation system, another end in contact with the rim, a channel for passage between both, and opening by means of a cover fixed to a mobile rod. The valve has at least two cavities with means for connection to the sealed compartments of the chamber or tyre. One of the cavities moves in a fixed manner in relation to the rod, permitting, in the open position, the flow of gas or liquid through the channel of communication between the cavities. In this way, the existence of friction surfaces is eliminated, increasing the watertightness, the maximum operating pressure and the useful life. In addition, the number of contact elements is reduced, facilitating a more simple series production, by reducing the level of precision required in the components thereof. |
