| 摘要 |
<p>The invention concerns a device for ventilating a motor vehicle fuel tank comprising a chamber (24) communicating with the tank and, through a top outlet (30), with a discharge duct (28), and wherein the device comprises, inside the chamber (24), a float (32) controlling a needle valve (40) for closing the top outlet (30) when the fuel level exceeds a predetermined threshold in the chamber (24). The invention is characterised in that the device comprises, between the tank and the float (32), means (66, 68) for limiting the fuel displacement speed before it comes into contact with the float (32).</p> |
