Answer :
The main function of the low-pressure fuel system in a Gas Direct Injected (GDI) engine is to deliver fuel to the high-pressure fuel pump. Let's break this down:
What is a GDI Engine?
- A Gas Direct Injected (GDI) engine is a type of internal combustion engine that injects fuel directly into the combustion chamber at high pressure. This process provides better fuel efficiency and performance compared to traditional engine types.
Function of the Low-Pressure Fuel System:
- The low-pressure fuel system is responsible for moving fuel from the fuel tank to the high-pressure fuel pump. It usually operates at relatively low pressures compared to the high-pressure fuel rail.
Why is it Important?
- This system ensures that there is a continuous and sufficient supply of fuel ready to be pressurized for direct injection into the engine. Without it, the high-pressure fuel pump wouldn't be able to function effectively.
The correct multiple-choice option for the main function of the low-pressure fuel system in a GDI engine is option 1: Deliver fuel to the high-pressure fuel pump.