Electric Fuel Pumps – Getting To Know Them Better
No matter whom you are and no matter what car you drive, you should know this that your vehicle just cannot move an inch without the use of an electric fuel pump. These days, most vehicles come equipped with this gadget to ensure that engine gets the requisite amount of fuel to get the power needed to make it run. But most people don’t really know its importance in the overall working mechanism of your car.
Prior to fuel injection there was the carburetor. Carbureted engines had a mechanical fuel pump mounted on the engine. This style of pump usually was driven off of an eccentric lobe on the camshaft. Carburetors did not need a lot of fuel pressure to feed them; in turn created a small problem with this style of setup. This format created the issue of vapour lock – low fuel pressure and heated temperatures, whether generated from the engine or from the ambience and atmosphere outside, causes the fuel to evaporate. And as mechanical fuel pumps are not designed to handle vaporised fuel, the engine of the car had to go through a lot of trouble. Vapour locking caused the vehicle to spit, sputter and sometime just die; when the engine finally cooled down then the vehicle would start up just fine.
This is the one of the main reasons why automobile designers and engineers decided to include an electric fuel pump into the set up of the modern day car. These pumps are generally located in the fuel tank and play a strategic role in the overall working of the vehicle. In fact, there are several reasons why this set up is preferred by car manufacturers and engineers. Let us look at them closely.
The advent of modern fuel injection systems had created a need for high pressure pumping of fuel into the engine. Electric fuel pumps are much better equipped to handle high fuel pressures and have been designed to function in accordance with modern engine requirements.
The combination of higher operating pressures and mounting these pumps in the fuel tank; eliminates any possible vapor locking. This justifies the strategic placement of the pump in the overall system of the modern day car.
The idea of keeping the electric fuel pump submerged in the fuel tank offers many added advantages as well. The pump remains cool throughout the combustion process and gets unrestricted access to fuel which eventually enhances the performance of the engine.
With the fuel pump submerged in fuel, there is a least likelihood of an explosion. Liquid fuel does not explode, fuel vapors do.
Having a suction style pump can create a situation where it might end up sucking in air through a bad connection. Modern electric fuel pumps are placed inside the tank which makes any leakage in the pressured line easy to identify and diagnose, which is actually a hard task with other types of pumps.
If you wish to know more about electric fuel pumps, you can simply visit the website EPartsSolution.com.
About The Author
Timothy Gibbs is an expert mechanical engineer who also likes to write many interesting articles and blogs, helping people to understand more about their cars and how they work. He recommends EPartsSolution.com as the best name to trust when it comes to electric fuel pumps, control arms, ignition coils and more.