Fuel type selector for industrial vehicles, has a system of electrovalves to switch to a cheaper fuel when the vehicle is stationary, in order to keep the auxiliary systems running

摘要

The device has 3 electrovalves (1,2,3), the first electrovalve (1) controls the fuel entering the tank, the second (3) directing the fuel to the respective filter (4 or 5), and the third (2) directing the fuel to its respective reservoir depending on whether the electrical windings of the electrovalves are excited or not. The windings are excited by contactors. The electrovalve (2) is temporarily disabled to permit the conduits to be cleaned, and also to avoid mixture of fuel and oil. A system of contacts and relays control the electrovalves.