Trucks / Fuel
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Adjust the temperature of the fuel in trucks
Engines for heavy-duty trucks are designed to regulate the temperature of the fuel, allowing them to operate more efficiently and economically. Engine fuel systems in trucks are divided into areas of high and low pressure. In the area of low pressure are the filters through which the fuel settles.
The zone of high pressure in the fuel system is the place where fuel in injected into the cylinders. The plunger of the injector produces high pressure required for injection and its efficient combustion. Injectors for trucks are solenoid valves.
Injectors power internal combustion engines based on its volume. The fuel system and coolers in a truck have to compensate for the increase in heat and control the effective operating temperature of the fuel.
Some modern engines do not require fuel coolers. In these engines, the fuel system draws fuel from the tank through the primary filter. The fuel is cooled by direct exchange of fuel to the top front of the cylinder head of the engine.
In this regard, excess fuel injectors are mixed with the incoming fuel that is pumped through a secondary filter. The fuel is then sent to the injectors at the rear of the cylinder head. This type of combustion system for trucks is the most common in Volvo brand vehicles.
They are based only on the amount of fuel to burn, maintaining normal operating temperature of the fuel. Recirculating fuel maintains normal operating temperature taking advantage of the engine coolant, resulting in a better and more precise control than the return of fuel.