Fuel Tank
| ITEM | DESCRIPTION |
|---|---|
| 1 | Roll over valve |
| 2 | Fuel tank internal bracket |
| 3 | Internal breather |
| 4 | Fuel tank breather connection |
| 5 | Flange locking ring - Fuel pump module |
| 6 | Fuel pump module flange |
| 7 | Fuel pump module |
| 8 | Fuel filler hose connection |
| 9 | Float - Fuel level sensor A |
| 10 | Suction pipe |
| 11 | Float - Fuel level sensor B |
| 12 | Fuel Limit Vent Valve (FLVV) |
The fuel tank is manufactured using six layer co-extruded blow molding technology providing both high mechanical strength and complete emissions integrity. The fuel tank is a saddle tank design which is mounted under the rear seat floorpan, forward of the rear suspension. The fuel tank is secured with two straps which are bolted in position and a center fixing held in place with a nut. The fuel filler neck is produced from stainless steel.
The fuel tank provides the following:
- Storage of fuel. The system must contain a given quantity of fuel and must avoid leakage and limit evaporative emissions.
- Filling. The fuel tank must be filled in a secure way, without sparks.
- Provide a method for measuring the level of fuel in tank.
- Venting. The over-pressure is not allowed, the fuel vapors must be managed through valves.
- Provide a method for delivering the fuel to the engine.
The fuel tank has a storage capacity of 63 liters (13.9 gallons).
The fuel tank contains a fuel pump module which collects fuel from both sides of the tank. The fuel pump makes sure that sufficient fuel is available in the swirl pot to supply the engine's fuel demands. The Low Pressure (LP) fuel pump supplies fuel to the High Pressure (HP) fuel pump which is mounted on the engine.
An internal bracket allows for the attachment of the suction pipe and the fuel level sensor B.
The internal breather is connected to a stub port passing through the fuel tank carcass. An external hose connect this port to the top of the filler neck. This enables the fuel tank to be filled and controls the fuel cut off during filling.
Fuel level inside the tank is monitored by two fuel level sensors.
Roll Over Valve
The three roll over valves allow fuel vapor to escape to prevent tank pressurization in normal vehicle operating modes. The valves are designed to close to prevent fuel leakage through the vents in the event of a vehicle roll over. The fuel vapor is routed to the Evaporative Emission (EVAP) canister where it is stored before being purged at intervals to the engines intake manifold.
Fuel Limit Vent Valve
The Fuel Limit Vent Valve (FLVV) allows the fuel tank to be filled to its maximum. The air within the fuel tank expelling through an internal breather which is connected to a stub port, passing through the fuel tank carcass.
A combined fuel vapor and breather external hose connect to this port. A pipe connection splits the combined hose to independently connect pipes to the fuel filler neck and the Evaporative Emission (EVAP) canister. For additional information, Refer to: EVAPORATIVE EMISSIONS .