Lpi Vialle Technical — Manual Top [new]

Standard LPG systems rely on an engine-bay regulator to vaporize fuel using engine coolant. The Vialle LPi system eliminates the regulator entirely. Instead, an integrated fuel pump submerged within the LPG tank maintains the fuel under high pressure throughout the entire fuel loop.

The "brain" of the system (common versions include LPE-7 ) which manages the switching between fuels and regulates injection duration.

Matches gasoline performance through the cooling effect of liquid injection.

Vialle LPi System Overview and Benefits | PDF | Fuel Injection - Scribd lpi vialle technical manual top

A diaphragm pump inside the LPG tank creates the necessary system pressure. A pressure regulator maintains this at approximately 5 bar above the tank pressure .

Interfaces with the vehicle’s original signals to manage the LPG injectors.

These specialized injectors meter the liquid propane directly into the intake tract right before the intake valves. They handle high-pressure switching cycles while resisting the extreme heat of the engine block. 3. Operational Logic and Injector Mapping Standard LPG systems rely on an engine-bay regulator

It continuously reads engine RPM, manifold absolute pressure (MAP), and system voltage to fine-tune the delivery. The Switch and Fuel Level Indicator

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A 2006 Chevrolet Tahoe with a Vialle LPI system runs perfectly on gasoline but sputters under hard acceleration on LPG. The LPG pressure gauge drops from 8 bar to 2 bar during throttle tip-in. The "brain" of the system (common versions include

Hope this guide serves you well on your journey with Vialle LPi!

(often using FTDI chips) to interface with the LPe unit on Windows or Linux. Start-up Behavior

By keeping the propane under constant pressure (typically 5 to 15 bars above tank vapor pressure), the fuel remains strictly in a liquid state until it exits the injector nozzle. This liquid phase injection provides a cooling effect inside the intake manifold (charge cooling), which increases volumetric efficiency and prevents power loss. Component Diagnostics and Specifications

: Placement guidelines on the engine and discharge angle specifications.