This type of system is suitable for conversion of vehicles with carburetor or injection engines without OBD (on board diagnostics).
LPG in liquid state is stored into the tank and from here withdrawn by a special multivalve. Via the high pressure pipe, it reaches the pressure reducer/vaporizer through a solenoid valve which only opens when the engine is running.
In the pressure reducer, the liquid LPG reduces its pressure and changes to the gaseous state by taking the heat necessary for the change of state by a heat exchanger inside which the engine coolant circulates.
The LPG in gaseous state thus reaches the mixer which has the function of dosing the gas flow in proportion to the needs of the engine, as a consequence of the vacuum (Venturi effect) generated in the mixer itself.
On injection engines (without OBD) we suggest to also install an electronic control device which doses the gas with precision using the signal from the oxygen sensor.