Closing mechanism for the filling opening of a motor vehicle fuel tank

摘要

A drive and lever system is provided for opening and closing a tank filling pipe (1) cooperating with a filling opening (2) of a motor vehicle fuel tank. A control arrangement allows the drive member to be operated from the interior of the vehicle, particularly the driver's seat. The drive may be pneumatic, hydraulic or electrical, particularly is a pneumatic diaphragm-type cylinder, which is double-acting and is vacuum-actuated with the aid of a 4/3 directional valve.