Fuel Injection System: There are two fuel injection system- a. Air injection system b. Solid injection system. Advantages of air injection system: 1. Good atomization due to large pressure. 2. Heavy and viscous fuels can be injected. 3. Fuel pump is required to develop a small pressure. Disadvantages of air injection system: 1. Requires a high pressure multi-stage compression. 2. Separate mechanical linkage is required to operate the fuel value. 3. Overheating and burning may occur. 4. Low output pressure. 5. Sticky of fuel valve may occur.
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