Car power supply

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The system of car power supply is used to store and filter fuel, to get it to the engine cylinders. It depends on the performance and stability of the engine.

The power system can change depending on the vehicle. The main difference is how the fuel is injected.

In any case, each vehicle is equipped with a fuel tank and a filter to purify it, with a pump that sends fuel to the engine, send and return tubes, sensors to monitor, for example, the fuel level or other parameters.

Car power parts

Cars with petrol engine can have an injection system so done:

• Single-point injection (SPI). A single injector provides fuel to the intake manifold, where the mixture of air and fuel is formed.

• Multipoint injection (MPI). The system contains an injector for each cylinder. The fuel supply line is divided thanks to a special fuel distributor.

• Direct injection. The system includes a high-pressure line with another pump and a fuel circuit. The fuel is supplied directly to the high-pressure combustion chambers.

• Combined injection. These power systems have supplied high pressure and low pressure fuel circuits. High-pressure injectors are installed in combustion chambers, while low-pressure injectors are in the intake manifold. Depending on the operating mode of the engine, the control unit chooses the most suitable fuel supply.

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Diesel engines have the most common injection systems that follow:

• High-pressure fuel pump. The fuel comes to the injectors from the high-pressure pump.

• Injectors of units. They guarantee a layered fuel injection directly into the combustion chambers. They are components powered by the camshaft.

• Common Rail. It consists of a circuit is a high pressure fuel pump. Injectors are located in the combustion chambers and are connected to the circuit with high pressure pipes.

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