Fuel Tank
| ITEM | DESCRIPTION |
|---|---|
| 1 | Fuel filler pipe connection |
| 2 | Flange locking ring |
| 3 | Fuel tank ventilation pipe |
| 4 | Roll over valve |
| 5 | Liquid Vapor Separator (LVS) |
| 6 | Fuel Limit Vent Valve (FLVV) |
| 7 | Jet pump pipe - Left (passive) side of the fuel tank |
| 8 | Float - Fuel level sensor 'B' |
| 9 | Fuel level sensor 'B' |
| 10 | Fuel pump module |
The Plug-in Hybrid Electric Vehicle (PHEV) fuel tank is a stainless steel construction providing both high mechanical strength and complete emissions integrity. The fuel tank is a saddle tank design which is mounted under the second row seat floorpan, forward of the rear suspension. 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 the fuel 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 91 liters (24 gallons).
The fuel tank contains a fuel pump module which collects fuel from both sides of the fuel tank. The fuel pump makes sure 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 jet pump pipe and the fuel level sensor 'B'.
The internal breather is connected to an external breather passing through the fuel tank assembly. This enables the fuel tank to be filled and controls the fuel cut off during filling.
Fuel level inside the tank is monitored by 2 fuel level sensors.
Roll Over Valve
The 4 roll over valves allow fuel vapor to escape to prevent fuel tank pressurization in normal vehicle operating modes. The roll over 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 the fuel tank ventilation pipe, passing through the fuel tank assembly. The external breather is located between the fuel tank ventilation pipe and the fuel filler neck. For additional information, refer to: EVAPORATIVE EMISSIONS - INGENIUM I4 2.0L PETROL - PHEV