Sealing system for fill pipe head, associated pipe and tank

摘要

Sealing system for fuel tank fill head comprising: a valve that can be moved between an open position, in which fuel may be introduced into a fill pipe, and a closed position in which the fill pipe is closed, the valve passing from one position to the other under the effect of a pressure exerted by a filling nozzle head; a locking system capable of locking the valve in its closed position; and an actuation system capable of being moved between a closed position and an open position under the effect of introducing the filling nozzle into the fill head. The locking system and the actuation system are capable of cooperating together so that a displacement of the actuation system from its closed position to its open position causes a displacement of the locking system from a locked position to an unlocked position. The actuation system comprises a rotatable cam equipped with a coupling pin capable of cooperating with the locking system. The invention also relates to a fill pipe equipped with such a sealing system and to a fuel tank equipped with such a fill pipe.