Patent ID: 11867185
Assignee: FEDERAL INDUSTRIES, INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  B  G | IPC B  F  G

Claim 0:
1. A fuel pump system comprising:
a variable displacement motor operable to be driven by hydraulic fluid pressure;
a fuel pump operable to be driven by the variable displacement motor; and
a drive system controller connected to the variable displacement motor, wherein the drive system controller is operable to direct an operation of the fuel pump during a fuel delivery process in modes comprising:
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 in fluid communication with the fuel pump;
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 fluid pressure.