How Fuel Preporator Works

Many curious and busy minds using the internet as extensively as possible would like to know what a preporator is. Fortunately, there are numerous technical explanations, many of which will be easy for the layman user to comprehend. This short and introductory note makes its contribution by making mention of the trademarked airdog fuel preporator. Making the purchase is easy enough. But knowing how it works and where it is appropriate to be used is surely more important and practical.

The abovementioned trademarked device has the ability to provide fuel at flows and pressures that can go beyond the maximum requirements of an engine. It receives its fuel under vacuum from a fuel tank that contains entrained air or vapor, particulate contaminants as well as unmeasured volumes of moisture. Fuel passes through a water separator. The water separator removes the water and particulates that could potentially damage a gearator fuel pump. And then fuel containing only entrained air and a small amount of contaminants will enter the fuel pump.

Fuel that is allowed to enjoy a positive pressure flow can now enter the filter. While fuel passes through the filter, whatever is left over of contaminants are contained. Entrained air or vapor is also contained. Separated air or vapor is diverted to a discharge port and into a ‘return to tank passage’ near the regulator. Fuel free of contaminants and air and flowing at required pressures and flows, exit the fuel filter through two passageways. Fuel required for the engine then passes into a fuel pickup tube and out towards the engine.

airdog fuel preporator

Excess fuel is released through the pressure regulator. It then combines with air or vapor, as well as foam, as it makes its way back to the fuel tank. The regulator is necessary in order to control fuel pressure to the engine.

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