|
LPG in its liquid phase leaves the tank by
means of the multivalve (which through the external filler socket
is also used for refueling). It is fed to the engine through a
pipe and solenoid valve. The valve will only allow gas to pass
through when the engine is running and switched on in the gas
position.
In the next phase a regulator reduces the pressure, transforming
liquid LPG into gas. From the regulator LPG enters the air/fuel
mixer on the intake manifold. It controls the flow of gas
according to the requirement of the engine (represented by the
vacuum generated in the mixing devices) so as to ensure optimum
carburation in terms of driving, consumption and emissions. In the
system with SE 81 regulators, the switch mod. 094, besides other functions, allows starting on gas
with a times automatic system to enrich the mixture for starting
and allow the user to select the desired fuel at any time,
displaying the level of LPG in the tank.
During gas operation, the petrol solenoid valve cuts off the flow
of petrol to the engine, whereas during petrol operation the flow
of LPG to the engine is cut off by the LPG solenoid valves.
Carburetion |
