Cars / Fuel
Fuel System - Cars
The function of the fuel system is to store and supply fuel in the combustion chamber of an internal combustion engine where it is mixed with air and burned through their joint formed energy to drive the car. The fuel used in automobiles can be gasoline or diesel fuel. A fuel pump draws fuel from the tank, which passes through the fuel pipes and hoses, reaching fuel filter, carburetor or injectors, and then is delivered to the cylinders of the engine where it burns.
Vehicles use two types of fuel pumps, mechanical and electrical. All cars with fuel injection use electric fuel pumps, while most cars with carburetors use mechanical pumps. In newer cars the fuel pump is already in the fuel tank. Mechanical pumps have a working pressure of 4-6 PSI, and the electric pump can operate at pressures of 30-40 PSI. Electric fuel pumps may be low or high pressure. We should also mention the fuel filter, which is key to providing the proper supply of fuel.
The fuel filter is essential to the operation of the fuel injectors in an internal combustion engine. Fuel injectors are more susceptible to damage caused by pollution than the carburetor. Electric pumps are also more susceptible to damage than mechanical fuel pumps. When the fuel filter is dirty, electric fuel pumps have to go to great efforts to spend loads of fuel through the filter, which can lead to its heating and combustion.
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