🔍 Key Concepts

• Diesel engine fuel system components and their functions • The meaning of atomization in fuel injection • Differences between diesel injection and gasoline carburetion

💭 Think About

• Which part of a diesel engine actually breaks the fuel into a fine mist right before it enters the combustion space? • Does a diesel engine use a carburetor like a gasoline engine, or a high‑pressure system with nozzles? • Is the high‑pressure pump the device that sprays fuel into the cylinder, or does it feed another part that does the spraying?

✅ Before You Answer

• Identify which component is located right at the cylinder or combustion chamber entry point • Confirm which device must create a fine, well‑dispersed spray (atomization) for efficient combustion • Eliminate any components that primarily move or compress air rather than fuel