LPG-2 LPG-4: Main differences between

Very often, the owners ask the question: what is LPG 2nd generation is different from the HBO 4th generation. To answer this question we will give the employee the Kiev STO "LPG Services", which do quality installation of gas cars on certified hardware (). Initially, the throttle is either "normal" gas the equipment was designed specifically for carbureted vehicles and it can be divided into three generations:

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  • 1st generation LPG is characterized by the fact that the vacuum reducer, that is, the flow of gas to the mixer from the gearbox is opened by vacuum directly into the intake manifold;
  • 2nd generation LPG is characterized in that the electronic gear he has, even though it has absolutely no "electronic", and instead of the vacuum membrane is a solenoid valve. The gas supply to the mixer directly from the reducer happens immediately after the submission to the coil of the power supply (simultaneously with opening of gas valve);
  • 3rd generation LPG - same as LPG-2, but with feedback directly that the lambda probe (LCS). That is, the dispenser has a stepper motor, depending on the composition of the mixture is controlled by the LCS.
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Possible problems

In this case, the injection motor, in essence, becomes carbureted. Here appear problems. The fact is that the operation of the motor to the gas directly in the intake manifold not the air (like gasoline), and the mixture of air with gas that, under specific conditions, for example, when hit from under valve spark can "pop"- that is, will experience "reverse clap". Ultimately may rupture the casing Vozduha either break sensor mass air flow (of course, if there is one). By the way, the probability of such an outcome is always there, regardless of equipment!

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How to solve the problem with the beats by clapping?

This problem is able to solve the installation HBO fourth generation with distributed gas injection. Here is simply ignorant to clap, because in the inlet manifold - the air and gas nozzles are located near the gasoline. The opening time of gas injectors expects gas controller directly on the basis of the shown pressure, gas temperature, intake manifold vacuum, engine speed, the opening time of the petrol injectors, diesel calculated by the controller based on data from multiple sensors (temperature, throttle position, detonation, air consumption, VMT, etc.), and most importantly - the lambda probe (oxygen sensor within). That is, in this case healthy should be a gasoline power system, otherwise, and gas - will not work properly.

Based on the above is the difference in price between LPG 2 and LPG 4-th generations, in addition, the installation takes a whole day, well, even the setting (1-in computer - no screws).

On materials: HUNDRED "LPG SERVIS"

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Source: http://uzinform.com.ua/

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