Fuel pump driven by a variable displacement motor for aerial refueling operation
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United States of America
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Apr 1, 2025
Grant Date -
Mar 28, 2024
app pub date -
Dec 8, 2023
filing date -
Dec 8, 2023
priority date (Note) -
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Abstract
A fuel pump system for an aerial refueling system including: a variable displacement motor operable to be driven by a hydraulic fluid pressure; a fuel pump operable to be driven by the variable displacement motor; and a drive system controller (DSC) connected to the variable displacement motor, wherein the DSC is operable to direct an operation of the fuel pump in modes including: a flow control mode operable to maintain an output fuel flow rate from the fuel pump to a predetermined maximum inlet pressure at a reception coupling for a receiver aircraft; a fuel pressure control mode operable to regulate the output fuel flow rate to not exceed the predetermined maximum inlet pressure; and a priority mode operable to reduce the output fuel flow rate in response to a decrease in the hydraulic pressure. Also, a method of refueling a receiver aircraft.
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