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What is the Function of the Engine Fuel Supply System?

2 Answers

IsaacRose

07/25/25 4:33am

Gasoline engine fuel supply system is designed to prepare a certain quantity and concentration of combustible mixture according to the requirements of various engine operating conditions, supply it into the cylinder, and ignite it near the end of compression to expand and perform work. Finally, the supply system should also discharge the combustion products into the atmosphere. The fuel supply system consists of gasoline supply device, air supply device, combustible mixture formation device, and exhaust emission device. Below are the specific introductions: Gasoline supply device: Fuel tank, fuel pump, fuel pipe, fuel filter, fuel pressure regulator. Air supply device: Air filter. Combustible mixture formation device: Carburetor, fuel injector. Exhaust emission device: Intake pipe, exhaust pipe, exhaust muffler. Classification of gasoline engine fuel supply systems: Carburetor type fuel supply system, gasoline injection type fuel supply system, liquefied petroleum gas fuel supply system, and other mixed fuel supply systems.

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RyderDella

08/10/25 5:25pm

The fuel supply system is like the canteen chef for the engine, ensuring the perfect ratio of each air-fuel mixture. You see, fuel is drawn from the tank, pressurized by the fuel pump, and then atomized and sprayed through the fuel injectors. The core task of this system is to adjust the fuel supply according to the engine's demands—trickling steadily at idle and gushing like a faucet during acceleration. Modern electronic fuel injection systems are even smarter, with sensors constantly monitoring parameters like air intake and coolant temperature to maintain the ideal air-fuel mixture in the combustion chamber. This directly affects your car's power, fuel efficiency, and whether it emits black smoke. If the system malfunctions, the engine may sputter and struggle at best, or stall completely at worst.

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