Fuel tank (gasoline powered vehicles)
Fuel tank (diesel engine vehicles)
Functional diagram of the fuel tank (gasoline powered vehicles)
Functional diagram of the fuel tank (diesel engine vehicles)
Specification
- 1. Buck
- 2. Fixing bolts (5 pieces).
- 3. Filler neck
- 4. Fastening collar of the neck on the beer hole
- 5. Cork
- 6. Pipeline supply fuel
- 7. Gasoline vapor supply pipeline
- 8. Fuel return line
- 9. Pipeline for removing gasoline vapors to the absorber (coming from the tank)
- 10. Communication with the atmosphere
- 11. Absorber
- 12. Valve to prevent overfilling of the tank and the valve to prevent fuel leakage when the vehicle rolls over.
- 13. Atmospheric tank connection and rollover prevention valve (diesel modification).
- 14. Anti-pressure tube (degassing during filling).
- 15. Fuel pump assembly and level sensor assembly.
- 16. Diesel top beer level sensor.
- 17. Channel to the absorber.
- 18. Communication with the atmosphere (diesel engine).
- 19. Calibrated vent hole
- 20. Ball to prevent overflow
- 21. Anti-pressure tube when filling
- 22. Limit valve.
- 23. Overpressure-vacuum safety valve
- E. Air outlet during refueling.
- F. Air volume. allowing fuel to expand
- R. Fuel fill port V Usable fuel capacity The fuel tank has a sealed cap.
The filler neck for unleaded gasoline has:
- filler hole with a smaller diameter that does not match the diameter of a conventional filling nozzle (lead can contaminate the emission control system oxygen sensor and catalytic converter);
- filling valve (to prevent gasoline vapors from escaping or gasoline leaking out).
When the fuel tank is completely filled, there must always be a certain amount of air in it in order to have room for the expansion of the fuel in it, otherwise it will cause the tank to swell. The rollover prevention valve prevents the tank from emptying through the channel leading to the absorber or through the vent pipe (diesel engine).
Valve assignment
Overpressure-vacuum safety valve (only on petrol versions)
When shutting off the gasoline vapor recirculation circuit, this valve avoids the creation of excess pressure in the tank (tank swelling) or rarefaction (due to fuel consumption, the tank is crushed).
Restrictor valve
This valve prevents leaded gasoline or diesel fuel from entering the tank.
Overfill prevention valve and rollover prevention valve
The working body of the overflow prevention valve 12 is the ball 20.
When the car is stopped during refueling, the ball rests on its seat, thereby cutting off a certain amount of air in the tank. When the car moves, the ball 20 moves away from the saddle, thereby providing communication between the tank and the absorber.
Fuel level sensor
On vehicles with gasoline engines, the fuel pump, fuel filter and fuel level sensor are one unit.
-On the diesel modification, the pump is immersed in the tank. absent. Only the fuel level sensor is installed in the tank