Controlled Experiments of Aftermarket Retrofit Fuel Saver on a Truck Diesel Engine

Abstract

The paper summarizes research works conducted on a heavy duty truck engine equipped with an aftermarket retrofit fuel saver. According to manufacturer claims, the device has an electrostatic effect, improving fuel economy and reducing exhaust gas emissions. The tests were performed on a dynamometric bench comparatively, "with" and "without" device mounted in the engine fuel supply line, keeping constant all the other variables. There were measured engine corrected power, torque, specific and hourly fuel consumption as well as smoke emission. The characteristics used were engine speed at total load and part load, in preliminary test and after 35 hours of running, approximately equivalent to 1100 miles of driving.