The fuel pumps have to be insulated to retain temperature within a specific range, minimize noise, and enhance efficiency. Insulation maintains the fuel pump at its optimal temperature range, ideally between 140° and 180°F. In hot outside temperatures, it prevents overheating of the pump that may cause it to wear out quickly and lower the efficiency of fuel delivery.
Apart from regulating temperature, insulation helps in reducing the level of noise created by the pump during its operation. The fuel pumps are capable of producing sound up to 70 decibels, which is quite disturbing inside a vehicle. By utilizing deadened sound insulation materials, manufacturers can reduce noise levels as high as 50% and offer a quieter ride for the passengers.
Second, insulation increases the overall efficiency of fuel pumps. Thus, well-insulated pumps tend to experience less thermal loss, which simply means that they require less energy in maintaining the required temperature for transporting fuel. The efficiency can slightly increase fuel economy, mostly estimated at about 5%, because with consistent pressure and temperature, the engine can operate more effectively.
Insulation can also prevent fuel pumps from condensation in colder climates. With changes in temperature, there is a build-up of moisture that triggers corrosion in the pump and fuel lines. In fact, studies have indicated that up to 30 percent of all problems related to corrosion can be minimized or reduced once you have an insulated fuel system that properly extends the life of the fuel pump and other related parts.
Why do fuel pumps need insulation? It prevents overheating, dampens noise, ensures efficiency and avoids corrosion that condensation may cause. This aids in offering good performance and increases the life of such pumps. Proper insulation will maintain optimum operating conditions and will help to keep the general health of the vehicle’s fuel system in a good condition.