Electromagnetic lockable petrol filler cap for motor vehicles - uses electromagnetic moving plunger parallel to neck of filler tube to move tongue locking against rotation

摘要

The cap is fitted over the end of the filler tube. The end of the filler tube has cut-outs to accept tongues on the filler cap which are trapped behind the lip at the end of the filler tube when the cap is rotated to fix it in place. The cap is then locked against rotation by a tongue (7) which is displaced by an electromagnet (12). The electromagnet (12) is mounted on brackets fixed to the neck of the filler so that the electromagnet core lies parallel to the filler tube. The electromagnet plunger (11) moves parallel to the filler tube, displacing the tongue (7) so it moves parallel to the filler tube through rigid links (9,10).