Serbatoio
/\
Energia / \
Sterzo /_____________\
Pompa |=====================|
| Puleggia e cinghia |
Cremagliera e pignone |====================|
<=======> \__/___________________\_/
___________ | _____ |
|.-------.| /|_____/ \_____/|
_______/_________\_ ____________/ |___________| \___
| | / / |___________|____ |
____/____________\_/_________ _/ |___________| \_|
```