1. fuel injection system in diesel engine

2. fuel injection system consist of : fuel injection pump injectors
fuel pipe
filter
tank

3. In an internal combustion engine, the fuel injection system is that which delivers fuel or a fuel-air mixture to the cylinders by means of pressure from a pump. It was originally used in diesel engines because of diesel fuel's greater viscosity and the need to overcome the high pressure of the compressed air in the cylinders

4. fuel-injection pump
In-line fuel-injection pumps have one pump element for each engine cylinder. These are arranged in a row. The camshaft of the in-line fuel-injection pump is driven by the gear wheels or chains of the combustion engine

5. Injector
A fuel injector for fuel-injection systems of internal combustion engines includes a solenoid coil a valve needle that is in operative connection with the

6. solenoid coil and acted upon by a restoring spring in a closing direction in order to actuate a valve-closure member which forms a sealing seat together with a valve-seat surface formed at a valve-seat member,

7. fuel filter
A fuel filter is a filter in the fuel line that screens out dirt and rust particles from the fuel. They are normally made into cartridges containing a filter paper. They are found in most internal combustion engines

8. Fuel filters serve a vital function in today's modern, tight-tolerance engine fuel systems. Unfiltered fuel may contain several kinds of contamination, for example paint chips and dirt that has been knocked into the tank while filling, or rust caused by moisture in a steel tank. If these substances are not removed before the fuel enters the system

9. Fuel Injection Pipes

11. Fuel Tank
The fuel tank is that part of an automobile engine, which stores the fuel supplied into the engine. Depending upon the type of automobile and fuels, fuel tanks vary in sizes, types and complexity of designs