DUAL PUMP FUEL SYSTEMS

A fuel pump system includes a main fuel pump (102) between a system fuel inlet (104) and a system fuel outlet (106), a fuel flow path at least partially defined between the main fuel pump and the system fuel outlet, and a support fuel pump (110) between the system fuel inlet and the system fuel outl...

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Bibliographische Detailangaben
Hauptverfasser:	O'RORKE, Morgan, SUSCA, Ryan, SHOOK, Ryan
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A fuel pump system includes a main fuel pump (102) between a system fuel inlet (104) and a system fuel outlet (106), a fuel flow path at least partially defined between the main fuel pump and the system fuel outlet, and a support fuel pump (110) between the system fuel inlet and the system fuel outlet. The support fuel pump is sized to provide more flow to the system fuel outlet, when in an active state, than the main fuel pump. The system includes a valve assembly (101) in fluid communication with the support fuel pump configured and adapted to connect the support fuel pump to the system fuel outlet, and a pressure regulating valve in fluid communication with the fuel flow path between the main fuel pump and the system fuel outlet. The system includes an EHSV (118) in fluid communication with the fuel flow path between the PRV (116) and the system fuel outlet.