| 摘要 |
<p>Device for preventing the overfilling of a fuel tank (1) provided with a filler neck and a filling vent line (6), an operational vent line (11), which leads to the outside or to a collecting tank, opening into the fuel tank above the opening into the filling vent line, in which operational vent line there is connected a valve device (13) which is closed during filling of the fuel tank and is open in the remaining time, the valve device having a valve closing member (13') which can be engaged with a valve seat (19') in the direction leading away from the fuel tank, is preloaded into the open position and is bridged, at least in the blocked state, by a flow-restricting partial-flow path (14), the valve seat (19') for its part being movably mounted, forming a pressure relief valve clearance (25) with an inner shoulder (24) of the valve device (13), and being preloaded into the closed position and in the direction of the valve closing member (13').</p> |
