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Main fuel pressure pumps for gas turbine engines generally have one or two gear-type, positive-displacement, high-pressure elements. Each of these elements discharges fuel through a check valve to a common discharge port. Thus, if one element fails, the remaining element continues to supply sufficient fuel for engine operation. On some engines, the fuel pump is built in to the fuel control. However, on other engines the fuel pump may be a separate component.

Starting Fuel System


David L. Heiserman, Editor

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Revised: June 06, 2015