Closure system for fuel tank filler neck and method for opening said filler neck
AssigneeInergy Automotive Systems Research (Societe Anonyme)
InventorsJerome Ropert, Guillaume Blanc-Brude, Dominique Girard, Thierry Rouxel
Life of this patent
Estimating the term…
Abstract
A closure head for a fuel tank filler pipe allowing automatic opening of a shutter under action of thrust of a nozzle on a device integrated into the top of the filler pipe and closing of the shutter when the nozzle is withdrawn. The locking of the shutter is achieved by a mechanism connected to a bodywork flap such that locking and squashing of a seal are achieved upon the closing of the bodywork flap and the opening of the bodywork flap cannot unlock the shutter without the nozzle additionally being introduced into the system. A method for opening a filler head employs the device.
Claims20
A closure system integrated with a fuel tank filler head, comprising:
- a flap configured to protect said fuel tank filler when said flap is closed;
- a shutter enabling automatic opening of a pipe by action of a nozzle, according to which the shutter undergoes a retraction under action of a thrust force directed against the shutter along an axis parallel to an axis of the filler head;
- a return spring configured to return the shutter after said retraction to a closed position;
- and
- a lock mechanism configured to be activated as a result of said flap closing so as to prevent said retraction of said shutter when said flap is closed.
A closure system integrated with a fuel tank filler head, comprising:
- a flap configured to protect said fuel tank filler when said flap is closed;
- a shutter enabling automatic opening of a pipe by action of a nozzle so that the shutter moves from a closed position to an open position under action of a thrust force directed against the shutter;
- a return spring configured to return the shutter from said open position to said closed position;
- and
- a bezel configured to rotate from a first position to a second position, wherein said bezel is locked with said shutter in said first position and said bezel is unlocked from said shutter in said second position so that said shutter can move from said closed position to said open position when said bezel is in said second position;
- and
- a torsion spring configured to keep the bezel in said second position when the shutter is open.
A closure system integrated with a fuel tank filler head, comprising:
- a flap configured to protect said fuel tank filler when said flap is closed;
- a shutter enabling automatic opening of a pipe by action of a nozzle so that the shutter moves from a closed position to an open position under action of a thrust force directed against the shutter;
- a return spring configured to return the shutter from said open position to said closed position;
- and
- a bezel configured to rotate from a first position to a second position, wherein said bezel is locked with said shutter in said first position and said bezel is unlocked from said shutter in said second position so that said shutter can move from said closed position to said open position when said bezel is in said second position;
- and
- a rod configured to connect the bezel to the flap and to enable the bezel to be rotated into the first position when the flap is closed.
Dependencies are inferred from the claim text.