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Diesel fuel tanks are crucial components in diesel - powered vehicles and equipment, and their construction is designed to store, supply, and safeguard diesel fuel efficiently.
Tank Body
The tank body is the most prominent part of a diesel fuel tank. Typically, it is crafted from high - strength steel, aluminum, or in some cases, high - density polyethylene (HDPE). Steel tanks offer excellent durability and are highly resistant to impact, making them suitable for heavy - duty applications. Aluminum tanks, on the other hand, are lightweight, which helps to improve fuel efficiency in vehicles. HDPE tanks are corrosion - resistant, making them ideal for long - term use in various environments. The interior of the tank is often coated with a special material to prevent rust and corrosion, ensuring the purity of the diesel fuel.
Fuel Filler Neck
The fuel filler neck provides an access point for refueling. It is designed with a specific diameter and angle to accommodate standard fuel nozzles. To prevent spills during refueling, it may be equipped with a splash - back prevention mechanism. Additionally, a cap is installed at the end of the filler neck. The cap is designed to seal tightly, preventing fuel evaporation and the entry of dirt and water.
Fuel Outlet and Inlet
The fuel outlet is located at the bottom of the tank. It is connected to the engine's fuel delivery system through pipes. To ensure a smooth flow of fuel, the outlet may be equipped with a strainer to filter out impurities. Some tanks also have an inlet for adding additives or other chemicals to the fuel.
Sending Unit
The sending unit is an important component that monitors the fuel level in the tank. It usually consists of a float and a sensor. As the fuel level changes, the float moves, and the sensor sends signals to the fuel gauge on the vehicle's dashboard, providing the driver with real - time information about the remaining fuel.
Ventilation System