How does an LPG system work?

How does an LPG system work?

Look at the automobile gas supply system which is innovative, intelligent and safe. Discover the operating methods of the LPG installation to dispel all your doubts.

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  • Diesel + LPG
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  • Diesel + CNG
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LPG

You click and drive – this is how it looks from the user’s perspective. And what happens inside the vehicle at this time?

  1. The first step is to fill the tank with autogas. The fuel stored in the tank starts to travel towards the engine once the latter has been started. A  multivalve opens at the very start and feeds liquid LPG into a  gas distributor under high pressure.
  2. Fuel flows through an LPG solenoid valve, and once it has been pre-cleaned, to the regulator. At this stage, the gas evaporates and its pressure is reduced to about 2 bar.
  3. Though already in the vapour phase, the gas does not slow down and goes to the vapour phase filter for the next stage of contaminant removal.
  4. The mapsensor measures the pressure of the gas fed to the injectors and the negative pressure generated in the intake system. It then passes this data to the controller, which corrects accordingly and selects the appropriate gas injection timing.
  5. Afterwards, the clean and ready-to-combust gas goes directly to the LPG injectors, then to the intake manifold (separately to each intake channel), and finally to the engine combustion chambers. The timing of feeding the gas to the intake manifold’s individual channels is identical to the sequence of engine operation on petrol.
  6. This complex operation is managed by a  sophisticated computer – the controller. It controls the electromagnetic valves , monitors the gas parameters (temperature and pressure) and determines the injector opening/closing times (which can be different for each cylinder).
  7. Finally, it also ensures smooth switching between fuel types upon pressing the petrol/gas button located on the car’s dashboard control panel – the final component of the system. What is the result? Click the button and drive on autogas.

What can smart ALEX solutions offer you?

At every stage of the journey from the tank to the engine, autogas is controlled by intelligent electronics in the gas system components.

Our systems, although complex and technologically advanced, are reliable and intuitive to use. Thanks to this, you can count on their failure-free operation and safety. That is why, with full responsibility, we grant a 5-year warranty for ALEX OPTIMA and ALEX IDEA controllers. What’s more, the solutions we propose also focus on the durability of your car’s engine.

With so many benefits, we still remember what is the essence of having an LPG installation. Modern solutions used in our controllers enable our users to generate the greatest savings possible. So if you are considering installing a gas system in your car or company fleet, be sure to consider ALEX systems.

LPG Multivalve

LPG Multivalve

LPG Multivalve
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  • 1.80% filling limiter

    The first one is an 80% filling limiter, which leaves a 20% air buffer in the tank.

  • 2.Pressure relief valve

    The pressure relief valve protects the system against excessive pressure build-up.

  • 3.Fire valve

    The pressure relief device activates at temperatures above 110°C.

  • 4.Electromagnetic operating valve

    It opens when the engine starts and closes once the engine stops running.

  • 5.Excess flow valve

    It protects the system against an excessive gas flow exceeding the engine’s requirements.

  • 6.Non-return valve

    It ensures that LPG fuel flows only towards the gas tank during refueling.

  • 7.Manual service valve

    It is primarily used for maintenance work, e.g. filter replacement.

  • 8.Fuel level indicator

    Allows you to easily check the tank fill level.

Choose safety

The 4th generation Gas System is an intelligent and safe solution.

This mature LPG system, refined to perfection over time, is distinguished by advanced electronics, rigorously tested parts and the best materials. Sequential autogas injection, despite the existence of subsequent generations of LPG installations, is still the most frequently installed autogas system in the world because it provides:

  • precise gas dosing that corresponds to the current engine demand – this allows you to reduce any losses and increase savings,
  • perfect fit for petrol engines, which makes the entire system failure-free – provided its components are properly selected and installed,
  • complete lack of impact on the operation of the on-board diagnostics system, car power and engine wear.

Moreover, the system guarantees automatic and smooth switching from petrol to gas when the appropriate conditions for this operation occur – reaching the appropriate reducer temperature and gas pressure. IV generation LPG installations do not have any disadvantages, unlike older systems – they only require refueling at trusted stations and compliance with periodic inspection dates.

Discover the modern, intelligent and safe gas fuel system for your car. See how the LPG system works and dispel your doubts.