Fuel Systems Gasoline Created by Mahmoud Khairy
May 06, 2015
Fuel SystemsGasoline
Created by Mahmoud Khairy
Fuel System (Gasoline)Points of Presentation
Fuel Cycle when Car starts working
Design of fuel system (Parts)
Types of fuel System
Carburetor working
injection working
Which is preferable of fuel systems
Thanking
Fuel Cycle when Car starts working
When you put the key in contact and key rotates at the second time the Starter go engaged with flywheel causes it to rotate which causes the Crank shaft and timing belt to rotate and causes Fuel pump to rotate
Design of fuel systemMain Parts of any Fuel Systems
Fuel tank
Fuel Pump
Fuel lines
Fuel Filters
Types of Fuel systemsCarburetor Injection
Carburetor WorkingFuel movement
outside carburetorFuel movement
inside Carburetor
Injection WorkingInject the amount of fuel needed according to
engine operations
it is controlled automatically
Engines Operations in Carburetor
Idling the Gasoline goes from float to intake manifold through idling port Because thermostatic spring don't expand and choke valve closes Main nozzle and Throat Valve closed and then go to Combustion Chamber and air go to it from port in intake manifold
Engines Operations in CarburetorLow speed the Gasoline goes from float to intake manifold through idle port and low speed port Because thermostatic spring don't expand and choke valve closes Main nozzle and throat valve opens and vacuum begins to decrease
Engines Operations in CarburetorNormal conditions the Gasoline goes from float to throat valve from Main nozzle Because thermostatic spring expand and choke valve opens then to intake manifold and throat valve opens more and then goes to intake manifold
Engines Operations in CarburetorFull Power the Gasoline goes from float to throat valve from Main nozzle thermostatic spring expand and choke valve opens then to intake manifold and throat valve opens completely and then goes to intake manifold
Which is preferable of fuel systems? Disadvantage of Carburetor
uses a lot of fuel especially in idlingdue to loss of fuel in cold start as some of fuel become volatile and don’t burn
more emissions produce
Advantage of Injection
inject the amount of fuel needed according to engine operations
less emissions
atomization because the air fill the spaces between fuel molecules so most fuel molecules will be burnt and will increase the burning effectiveness
according to the previous Injection preferred
T h a n k y o u h o p e y o u l i k e i t
M a h m o u d K h a i r y