LPG SYSTEM CAR

Description of the components
1) LPG cylinder
2) Multi-valve and safety devices
3) LPG re-fuelling port
4) Switch unit
5) Pressure meter
6) Rail of injectors
7) ECU of the LPG Sequential injection system
8) Pressure Regulator
9) Fuse
Description of the components
1- Cylinder: It is built according to the European directive ECE 6701 and is manufactured using special sheet steel. It stores the LPG both in liquid and gaseous phase.

2- Multi-valve and safety devices: The multi-valve includes: an 80% filling valve that automatically shuts-off when re-fuelling with LPG when the maximum admitted filling level is reached; an overflow valve that trips should a pipe break, preventing all the LPG from dangerously spilling out; an overpressure valve that discharges the LPG stored in the tank externally at a controlled flow rate should the pressure or temperature of the cylinder rise excessively preventing the pressure inside the cylinder from rising further; a solenoid valve that shuts-off the flow of LPG when the engine is not running or when it is running on petrol; a level sensor of the LPG in the liquid phase connected to the level indicator.

3- LPG re-fuelling port: This is the device through which the cylinder is filled with LPG. It is equipped with a non-return valve to prevent the gas from flowing back up.

4- Switch unit: The switch unit is installed in a handy position for the driver. It is used to switch the vehicle over from Gas to Petrol and vice versa. It also serves as an indicator of the amount of Gas left in the cylinder.

5- Pressure meter: The pressure meter informs the gas ECU of the pressure difference between the gas injectors and the suction manifolds.

6- Rail of injectors: This device is controlled by the gas ECU and it distributes the correct amount of fuel to each individual cylinder.

7- Electronic control unit of the sequential injection system: The electronic control unit receives the signals needed to correct the amount of Gas and to maintain the perfect stoichiometric ratio in order to optimise both consumptions and performance.

8- Pressure regulator: The regulator/vaporiser is a device that reduces the pressure of the LPG from the pressure within the cylinder down to the working pressure. It also vaporises the LPG from the liquid state to the gaseous state. It is equipped with a solenoid valve that shuts-off the flow of Gas when the engine is not running or when it is running on petrol.

9- Fuse: The fuse protects the electric system.
Ask the installer to show where the fuse is installed and make a note of the position here below.