Know about the two types of fuel pumps
A fuel pump is an essential element in the fuel delivery system of an automobile. In most vehicles include the engine located in the front end of the vehicle and the fuel tank at the other end. The main function of the fuel pump to draw fuel from the storage tank and force the engine.Although some older models do not require fuel pump for the most recent non-gravity engines on the base, it is an essential component and is often called "the heart of the vehicle." In this article we will discuss about the two basic types and the advantages of one over the other Types of fuel pumps • Mechanical:. [ There are two types of mechanical pumps - mechanical pumps of old style and new style GDI pumpso former mechanics: They can be found in some older models of engines that have carburetors. The pump sucks the fuel tank and pushes to the carburetor when the engine is running. Their output pressure is pretty low - 4-10 psi. These low-pressure pumps are often mounted on top of the engineo new pumps high-pressure style GDI -. The advent of the gasoline direct injection (GDI) systems that can provide fuel at very high pressure has resulted in the high-pressure fuel pumps driven by the camshaft. These high-pressure pumps can generate fuel pressure up to 00 psi and more that help GDI engines to achieve better fuel economy with a high power output and reduced emissions • power :. electric fuel pumps are used in fuel injection systems (introduced before RDB system) to pump fuel from the fuel tank to the injectors. They usually provide fuel to 30-85 psi to the fuel injection valve, which opens and pulverized fuel under pressure into the engine. Unlike the old mechanical, electrical fuel pump is usually located in or near the fuel tankToday, a variety of electric fuel pumps for various applications are available on the market, such as: .o vane pumps: They are positive displacement pumps that consist of vanes / blades to push the gas through the pump. They are often used in large trucks and also in diesel carso Turbine pumps :. They are not positive displacement pumps. They have a turbine ring attached to the motor, which comprises blades for advancing the fuel through the pump. This pump operates smoothly and quietly and is mostly used in the latest vehicleso Gerotor pump. This is another positive displacement pump which uses an offset rotor for supplying fuel through the pump. They are used in passenger carso Solenoid Pumps :. They use a piston which is activated by an electromagnetic coil for generating a pressure, thereby assisting the flow of fuel. They have many applications and are considered universal type electric fuel pumpso Peripheral pumps. They have wheels that push and pull fuel. This is the standard type of pump used in many vehicles. Although they work much quieter, produce limited pressureo brushless pumps. These pumps have a fuel inlet and an outlet between which a fuel mechanism is positioned with an armature for pumping the fuel under pressure from the inlet to the outlet. Brushless pumps are generally used in diesel engines• Electrical Benefit on mechanical fuel pumpso smaller and lighter. Compared to the old pumps low pressure mechanical fuel style, power are small and lightweight. This compact size allows them to easily accommodate within the fuel tank. In addition, the use of small devices reduces the electrical load and thus control the fuel consumption. . However, the electric pumps are cheapo Ability to provide fuel at higher pressures: Old styled mechanical pumps provide a pressure of only 4-10 psi, electric pumps can deliver the gasoline to generally pressures between 30-85 psi. The fuel injection system requires the fuel to be supplied to high pressures. However, high pressure style mechanical pumps used in GDI systems can provide greater pressures as high as 00-3000 psio Improved security :. Fuel injection systems have a special device called electronic control unit (ECU) that controls the fuel pump supply. It is specially programmed to stop the fuel pump if it detects a low or zero pressure. This security feature helps prevent the risk of fire in the engine compartment in a collision or terminal failures. Since the mechanical fuel pumps lack this feature, electric pumps are considered safero Very durable :. The presence of the pump in the tank provides cooled by the flow of petrol. This prevents the overheating of the electric pump, which is a problem with the mechanical pumps (as they are mounted on the top of the engine), and thus increases the lifetime of the electric pumpo Mitigate vapor lock problems .: If the vehicle remains unused for some time, the liquid fuel in the tank to a gas state and disrupts the functioning of the fuel pump resulting in loss of power and pressure carburetor. vapor locks are very common in older fuel systems with low pressure mechanical pumps. But in the case of electrical pumps, the pump is inside the tank and runs cooler, the pump pressurizes fuel lines and prevents steam locks.With the increased use of alternative fuel pumps many companies have started manufacturing different varieties. buy them from a reputable and experienced manufacturer is always a good idea.
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