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BBK-V.122018_ENG People First...
EVERLASTING COMPANY
EVERLASTING
WE
COMPANY
AREYOUR
EVERLASTING
WE
COMPANY
AREYOUR
3.6.Fuel System
Main purpose of the fuel system is to supply clean fuel into the diesel engine continuously.
Ensure that the fuel system has been designed correctly and with suitable materials.
It is recommended to use a fuel filter and/or a water separator at the fuel tank outlet line.
Here are some important points to be considered while designing a fuel system properly;
• Using of suitable materials manufactured for fuel
• The distance between the fuel supply and return points/lines of a fuel tank, should be at a proper level around
300 mm. at least.
• Fuel pipes or lines should be designed and built with seamless black steel, proper plastic or copper pipes.
Galvanized or any improper type of pipes should not be used on fuel lines.
• The inner walls of the tank must not be painted or coated.
• The hoses to be used on fuel lines, must be selected properly and carefully.
The fuel to be used should be clean for a reliable operation and longer life time of the engine.
Auxiliary fuel tanks can be used if fuel pressure value caused by the main fuel tank’s location is out of producer’s
pressure limits.
Fuel level in the tank should not be at a height 4 meter higher or 3 meter lower than the fuel lift pump. Valves,
check valves or any other equipment must not be installed on the fuel return line between engine and fuel tank.
Allowed maximum fuel inlet temperature given by manufacturer should be taken into account while designing a
fuel tank or a fuel line. The rise of fuel temperature causes some changes on fuel viscosity, density and combustion
quality, so engine performance and exhaust emission will be affected negatively.
Since the fuel supplied to the engine should not consist any air inside it, the fuel lines must be designed so as not
to keep air inside.
Warning!
Do not allow smoking or any existence of sparks/flames around the fuel tank, fuel line or the engine.
1. Fuel Tank
2. Strainer
3. Fuel Filter
4. Fuel Filter Ass’y
4.a. Fuel Water Drain Plug
4.b. Air Bleeding Plug (For fuel filter)
5. Fuel Pipe Connector
6. Injection Pump
7. Injection
8. Fuel Pressure Relief Valve
9. Fuel Return Pipe
10. Fuel Feed Pump
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