Today there are six different systems of equipment designed to fuel gas engines. 4th generation LPG system is the most popular now. LPG components and parts varies not only by year of entry to the market, but also some other parameters. Consider the generation of LPG system more carefully to understand how it works.
The first generation
Action systems LPG equipment based on the first generation, is the mechanical mechanism of regulating the amount of air and gas that is fed into the combustion chamber. The nodes of this generation, of course, very simple in design and translation of your vehicle to LPG.
The exception is the control unit of the solenoid valve, located on the gearbox. As well as the switch of different types of fuel used, which is mounted in the cabin.
The rest of the gas equipment is structurally reinforced and contains sophisticated electronics. The main element of LPG equipment of this system should be considered reducer-evaporator (electronic or vacuum) and the gas mixer.
Exact dosage of gas which is delivered to the engine in this type of system, regulates the register of gas (power). Components and parts of such generation are installing on machines with carburettor.
The main advantages of the first generation of LPG system:
- ease of fabrication;
- ease of installation;
- lowest price .
However, the advantages of the hardware generation number one are added and these disadvantages:
- manually changing the gas flow on gas and in a different sequence;
- there is no possibility to start the engine on LPG;
- problems with running in the cold season;
In addition, such equipment is designed to work only with the engines of the carburetor type. The increasing number of cars with injector and improvement of the gas equipment has allowed to appear on the market the gas equipment of the second generation.
The second generation
The constructive difference between the first and second generations of LPG equipment is the presence of LPG probe (emulators lambda) and the possibility of turning off the injectors for gasoline. All other elements of the gas equipment remained without any significant changes.
In the system of the second generation to ensure compliance with environmental standards EURO-2. And also it can be used for cars with injector.
The third generation
The rapid development of technology has influenced and LPG (LPG equipment). Among the shortcomings of the second generation I would like to say about the “manual” adjustment of volume for the gas in the combustion chamber. The third generation of automotive gas equipment such disadvantage is not inherent. It uses no manual, and advanced digital dispenser. It uses a stepper motor to adjust the volume of feed gas. Managed by the dispenser with the help of special electronic “brain” of the special unit. This gas cylinder equipment already set up using a personal computer.
The fourth generation – the most popular at the moment
Gas equipment of the fourth generation is an accurately phased by the injection of gas, having a gas nozzle and a special control unit, which, in turn, is used to compute operations on:
• an LPG injectors;
• temperature sensor;
• the pressure sensor.
Gas controller role fall to recalculate the information and process the application, which is specially designed for such work. Such a system operates automatically.
The control is performed by the software manufacturer, and today this system is widely spread in different countries.
The fifth generation
Components and parts is the newest development in the field of development. In the system of gas generation number five equipment will not find any reducer or evaporator. However, you may ask, how to install LPG system without them?The answer to this question lies in the specific equipment. LPG tank is equipped with a pump that pressure gas in liquid phase to the LPG injectors. Of course, the ratio of all phases of LPG equipment is automatic and is operated by special software. Therefore, such gas equipment already complies with Euro-4 and has a reduced fuel consumption.
The sixth generation
An example of the fifth generation have led to improvements in systems of gas equipment and engines in which the gasoline is injected directly into the cylinders. That is, liquid gas is fed to the pressure pump, which, in our case, creates LPG injection to each cylinder with a very high pressure through injectors designed for petrol. The sixth generation supports the requirements of Euro– 4 (5 and 6). It is very economical, allows you to run the car at low temperatures. And most importantly — dynamic options work in practice coincide with the characteristics of the engine on gasoline.