Under influence of the continuous tightening of requirements with regard to items such as exhaust emission and fuel consumption automotive technology is currently at a very high level. Examples of this are developments in the field of downsizing whereby engine displacement is decreased and power is augmented with the use of one or more turbos. LPG has been accepted as a clean fuel for many years. Considerable savings on fuel costs can be made in many cases. In order to make use of this fuel in your car without problems the gas system of choice should be compatible with the high technology levels used in your car. In this way you can save money without loss of performance. This can be done with the Vialle Liquid Propane Injection (LPi) system.
Technology market leader
Vialle is a Dutch manufacturer and is in terms of technology a world wide market leader in the field of automotive autogas systems. After years of development and testing Vialle has released an auto gas injection system which matches the performance of the highest quality petrol injection systems. The LPi system can be used with modern MPFI injection, lean burn or turbo engines and fully supports E-OBD features.The original properties of the original systems are completely retained. Using this new technology the LPG is no longer vaporized but is injected into the intake manifold as a liquid. The cooling effect of the vaporizing gas results in an improved volumetric efficiency and higher power output from the engine. Due to the reuse of the original gasoline computer in the vehicle all the original properties of the car are retained and the car above all improves in the area of Environmental Friendliness.
As driver you will experience:
- There is no noticeable difference between driving with gasoline or with autogas
- That there is no power loss which means the maximum velocity of your car is not reduced
- That the acceleration of the car is not reduced when using autogas
- That no extra maintenance is needed and that you can remain with your original schedule for servicing
- The system is not sensitive to fuel composition and ambient conditions such as temperature, humidity or altitude
The LPi system works in much the same way as the gasoline system, liquid fuel is circulated and presented to the injectors. The system has a fuel tank with an integrated membrane pump. The pump increases the pressure in the system by 5 bar and pumps the liquid fuel to the pressure regulator. This component adjusts and controls the system pressure and also contains a solenoid valve which opens once the driver pushes the fuel selector switch and the engine continuous further operation on autogas. The fuel is sent to the injectors with are positioned in the intake manifold. Excess fuel is returned via the pressure regulator block to the fuel tank. The autogas injectors are controlled by the autogas electronic controller (LPE). This unit used the original signals from the vehicle's ECU and adapts these for the autogas injectors. All the original signals from the engine management and diagnostic systems of the vehicle remain intact in this way. Autogas has the physical property that under certain circumstances it can vaporize under influence of heat and temperature. This can result in start times which are longer than those you are used to with gasoline engines. In order to minimize this effect, the autogas pump is activated at the moment that the car door is opened on some models in order to achieve earlier build up of pressure in the system. This pressure increase allows any fuel in gaseous form to be recompressed in to liquid.
Vialle Alternative Fuel System B.V.
5626 EA Eindhoven