Skip to main content

What Is Fuel Feed System In Automobile?

Fuel Feed System In Automobile

Welcome to another interesting article on Autoblogly. I have shared the entire details, parts, and types of the fuel feed system in automobiles.
In each and every moving vehicle, the fuel is stored in the tank, and in order to start and run the vehicle, the fuel stored in the tank must reach the engine's combustion chamber. This system is available on SI as well as Compression Ignition Engines.

Fuel Feed System - Automobile 

The process of delivering fuel from the tank to the combustion chamber is known as the fuel feed system.
Fuel Feed System images
In a fuel feed system, the fuel can be delivered in many ways. It means there are different methods of delivering the fuel from the tank to the engine. I have covered a little about all of them. But the most important and advanced one is CRDI. This one is currently used at present and this system can be found in each and every new vehicle. So, before going further. I want to start from the beginning so that it will help you to clear the concept more thoroughly.
In a petrol engine, the petrol from the tank reaches through the pump, filter, and carburetor, to the engine cylinder. In diesel engines, the carburetor is not needed, the fuel is injected into the engine cylinder by an injector.

Function Of Fuel Feed System

The main functions of the fuel feed system are:
  • To store the fuel in the tank
  • To supply fuel to the engine to the required amount and in proper condition.
  • To indicate the fuel level to the driver.

Types of Fuel Feed Systems

There are different ways of delivering fuel and they have also a process and different working methods as per the availability of technology. The fuel from the fuel tank to the engine cylinder can be supplied by the means of following systems:
  1. Gravity System - This does not need any pump. In this system, the fuel tank is placed at a higher level than the carburetor. It's a simple and cheap system. The tank is directly connected to the carburetor.
  2. Pressure System - it contains an air pump and pressure-sealed tank. The air pump produces pressure due to which fuel starts traveling to the carburetor.
  3. Vacuum System - it is a vacuum method, the engine suction is used to suck the fuel from the tank to the carburetor.
  4. Pump System a camshaft or electrical-driven pump is used to bring the fuel from the tank to the carburetor. Here, the level of the tank doesn't matter. It can be placed anywhere inside the vehicle.
  5. Fuel injection System - An fuel injection pump is used in this system instead of a carburetor. The fuel is atomized and delivered in the air stream. Each cylinder has a separate injector.
The gravity, pressure, and vacuum system of fuel feed are obsolete now. The pump system is used universally on the motor vehicle. Some gasoline engines use a fuel injection system. In this system, a fuel injection pump is required instead of a carburetor.

Components Used To Deliver Fuel From Tank to Engine

  1. Fuel tank - It stores the fuel.
  2. Fuel pump - It works as a normal pump and transfers the fuel from the tank to the engine.
  3. Fuel filter - It filters the fuel.
  4. Carburetor - It crates a proper vaporization mixture of air and fuel.
  5. Intake manifold - The fresh air come from the intake manifold.
  6. Fuel lines - They are metal pipes, help in transferring fuel.
  7. Measuring gauze - To meter the fuel level in the tank.

Final words

The fuel feed system is one of the most important concepts to understand while working with an automobile. Of the system mentioned here, few are old and few are still used. 
Currently, MPFI for petrol and CRDI for diesel are used to inject the fuel inside the engine combustion chamber. This blog is fully focused on the automobile system which is found in most of the latest model diesel vehicles today.

Tags

Comments

Post a Comment

Popular Posts

Does EGR system Decreases Engine Power? (Must Know)

Does EGR system Decrease Engine Power? You will be shocked to know that the EGR system in automobiles decreases the volumetric efficiency as well as power output.  Yes, you heard it right. Then, you must be thinking. why are we using EGR? What it actually does? Does it do any other thing to the engine? All these doubts and topics are covered in this article. Let's get started. Little Intro to EGR EGR stands for Exhaust Gas Recirculation System . It is part of em mission control system in an automobile vehicle. It has zero roles in increasing engine power. It is used in vehicles to stop the formation of NOx gas. Which are very harmful to nature. Generally, when a vehicle runs on the road it produces lots of smoke and pollutants like carbon monoxide, carbon dioxide, and the most dangerous one i.e. oxides of nitrogen . Formation of NOx Fas Inside Engines Cylinder It is essential to know how and when NOx is formed inside an engine's combustion chamber. Nitrogen and oxygen are...
1 comment
Read more

What is Turbocharger? Turbo Lag, WasteGate Valve

What is Turbocharger? Turbo Lag, WasteGate Valve Getting a turbocharged vehicle is exciting but before you start the first thing that comes into your mind. In this article, I have shared the topics like What is Turbocharger , Turbo Lag , WasteGate Valve , and many other short questions and doubts related to the turbocharger. What is Turbocharger? How Does it Work? A turbocharger is a forced induction device which added to the engine to increase the volumetric efficiency of an engine. It is powered by the flow of exhaust gases coming out of the engine. It does not require any additional power or battery to run.  It compresses the intake air and forces more air into the intake manifold. Compressed air is cooled down with the help of an intercooler before sending it to the engine intake. Which helps to produce more power. A turbocharger helps to reduce emissions at high RPM. It is also known as a high-altitude compensation kit. Turbocharger Construction The design of the turbochar...
1 comment
Read more

CRDI (Explained In Very Simple Words)

CRDI - Common Rail Direct Injection (Hyundai) CRDI means a common rail direct injection system. It is a type of fuel delivery system used in most cars and vehicles. In this system, fuel is taken out and delivered into the engine's combustion chamber. CRDI is the name used by Hyundai and other brands that call the same system different names. Like, DICOR , CRDE, and DDIS , the three are the same but are used by various companies like TATA , Mahindra , and Maruti . What is CRDI? CRDI is the most advanced form of fuel delivery system which is fully automatic and controlled by ECU . And here, ECU works on the data provided by the actuators and sensors. This system is mostly used by Hyundai( a motor company).  Is CRDI and MPFI the same? No, both are different. CRDI is used in diesel engines whereas MPFI is used in petrol engines. Parts/components used in the CRDI system The main working components of the CRDI are: Fuel tank Fuel filter Pump Pressure Regulating Valve High-pressure Pu...
1 comment
Read more