A Study on Electrostatic Charging Characteristics in Vehicle Fuel Systems
18ICES/098

Abstract

As the friction between two mated materials generates electrostatic voltage, vehicles (particularly those operated in cold climates) accumulate an electrostatic voltage due to the fuel flow in the fuel line, air flow outside of the vehicle, etc. In this study, investigation into the electrostatic discharge characteristics has been carried out in the fuel systems of gasoline engines depending on the environment temperature. For the experiment, conventional fuel filters (paint coated steel case) and specifically manufactured testing equipment have been prepared. The experimental results indicate that an accumulation speed of electrostatic voltage depends on the surrounding temperature, and new methods of testing procedures are required compared to SAE standards.

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