: A cabin-mounted switch that displays fuel levels via 5 LEDs (4 green for full, 1 red for low) and indicates system status through a bi-color LED (green for gas, flashing green for changeover, red for petrol). 2. Operational Logic & Advantages
In the Vialle system, the regulator serves a different purpose than in vapor systems. lpi vialle technical manual top
The system functions as a continuous loop. Fuel is pumped from the tank, sent to the engine bay, distributed to the injectors, and the unused portion is returned to the tank. This continuous flow prevents heat soak from vaporizing the fuel in the fuel rail. : A cabin-mounted switch that displays fuel levels
: High-precision manifold injectors used to deliver liquid propane directly to the inlet valves. Fuel Lines The system functions as a continuous loop
Original Siemens/Vialle LPI injectors typically register a low impedance profile between 1.2 Ωcap omega Ωcap omega .
Mounted on the fuel rail. Maintains optimal differential pressure and manages return flow to the tank.
When the engine is running on LPG, this return valve must be fully energized and open to allow continuous fuel circulation.