| 摘要 |
Circuit for the passage of air between a tyre (3) of a moulded vehicle wheel (1) and an upstream duct (18) arranged in a piece (13) integral with the support (9) for the wheel, comprising a non-return valve (21) carried by the wheel (1) and connected, on the one hand, to the tyre (3) by a downstream duct (22) and, on the other hand, to the upstream duct (18) by an intermediate passage (20) with which is associated a rotating joint (15); the valve (21) and the downstream duct (22) are embedded in the wheel (1). This arrangement makes the air-passage circuit invisible from outside the wheel and makes its valve and its duct for connection to the tyre less vulnerable. <IMAGE>
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