Fuel Tank: Description and Operation

Fuel Supply System B5244S6 and B5244S, USA

Fuel Tank







1. Fuel filler pipe
2. EVAP canisters
3. FLVV (Float Limit Vent Valve)
4. Outlet to canisters
5. Roll over valves
6. Control module for the fuel pump (FP) (Pump Electronic Module)
7. Wiring
8. Fuel pump
9. Service hatch
10. Water separator, LSD (Liquid Separation Device).

- In order to satisfy statutory requirements in California, the fuel tank is made of stainless steel. The release of hydro-carbons is reduced because steel is less permeable than plastic
- Volume 70 liters
- The fuel filler pipe, which is manufactured from stainless steel, is welded to the fuel tank. The small diameter of the pipe limits the flow of air into the fuel tank when refueling. The air supply effects the degree to which the canisters full up and therefore emissions
- Fuel tank filler cap with more efficient valves
- The geometric shape of the fuel tank enables three roll-over valves to be used
- The service hatch is made of plastic. The hatch is secured using a stainless steel nut
- The B5244S6 engine has an evaporative emission (EVAP) system with two canisters. There is a water separator upstream of the canisters. The EVAP canister closest to the fuel tank has three chambers filled with active carbon. There is another canister, HCS (Hydro Carbon Scrubber), connected in series. Based on a honeycomb coated with active carbon
- B5244S has only one canister (does not have HCS).