﻿GET_GEVOMechL2_04_01_01_07 - ANIMATION Screen
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So, how does fuel flow through the fuel system of an ES44AC/DC locomotive?

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The fuel system can be divided into four functional sections: suction, low-pressure supply, high-pressure supply, and return/regulating section.

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First, an electrically driven fuel transfer pump draws the fuel from the fuel tank in the suction section.

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The fuel pump is turned on prior to the engine running to prime, or pressurize, the fuel system.

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All of the fuel system is normally pressurized except for the suction side of the fuel transfer pump.

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If there is a leak on the suction side of the piping, the result would be air entering the fuel supply, which could be indicated by a loss of suction pressure.

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The location of the leak would be in the suction or supply side piping that runs between the fuel tank connection, which is located on the Engineer's side of the locomotive, and the fuel transfer pump inlet connection.

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A leak anywhere else in the system would be indicated by the presence of leaking fuel.


