Answer :
Final answer:
The correct statement regarding the common rail fuel system is that the injectors connect to the fuel rail. Other statements about pressure control and injection locations are incorrect. This system enhances performance through precise fuel delivery.
Explanation:
Common Rail Fuel System Overview
A common rail fuel system is an advanced fuel injection system used in diesel engines. It allows for better fuel atomization and control, improving engine performance and efficiency.
Correct Statement Identification
Let’s evaluate each of the provided statements regarding the common rail fuel system:
- A. The pressure control valve vents fuel pressure when the pressure is too low. (Incorrect) - In fact, the pressure control valve typically reduces pressure when it's too high.
- B. The injectors are responsible for generating the correct fuel pressure. (Incorrect) - The injectors do not generate pressure; instead, they deliver fuel at high pressure provided by the fuel pump.
- C. The injectors connect to the fuel rail. (Correct) - In a common rail system, the fuel injectors are connected to a common fuel rail that maintains a constant high pressure.
- D. The injectors spray fuel into the intake manifold. (Incorrect) - In common rail systems, fuel is injected directly into the combustion chamber, rather than into the intake manifold.
Thus, the correct answer is that the injectors connect to the fuel rail (Option C).
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