| 摘要 |
<p>Thanks to the solution of the inlet opening (1) of the fuel tank the pumping of fuel into the tank can only be performed after inserting the correct supply pipe (55') of a predefined diameter, which prevents that for example the tank would be filled with gasoline instead of diesel fuel. On one end (11) inside the inlet opening (1) there is a guide ring (111) featuring at least one magnet (112) and an inlet opening (110), while on the other end (12) there is a locking mechanism (14), which prevents the access to the tank. Inside the specified inlet opening (11) there is a sleeve (12) inserted along the inlet which can be shifted along it and is held by the magnet (112), which encloses the internal cone-shaped section (155). The sleeve (15) can be shifted in the direction towards the tank only in the case when the correct supply pipe (55') has been inserted having its diameter adjusted to the size of the cone-shaped section (155), which leads to the shifting of the sealing mechanism (14) from the corresponding sealing surface (133) as well as release of the passage towards the tank. After removal of the pipe (55') thanks to the magnet (112) the sleeve (12) returns to its initial position of fitting to ring (111), while the locking mechanism (14) again fits the sealing surface (13) and locks the passage leading to the tank.</p> |
