Aircraft engine fuel supply

Details Aircraft engine fuel supply Aircraft engine fuel supply

F - Mech Eng,Light,Heat,Weapons

02

C

F02C 9/26 (2006.01) F02C 7/22 (2006.01) F02C 7/236 (2006.01) F02C 7/26 (2006.01)

Patent

CA 2597938

The invention concerns a centrifugal pump (100) driven by being mechanically coupled with the engine (14) has a low pressure input receiving fuel from a fuel circuit (11) of the aircraft and a high pressure output connected to a circuit (120) regulating the flow of fuel supplied to the engine, and an electrically-controlled auxiliary pumping unit (10) having an input connected to the aircraft fuel circuit and an output connected to the flow regulating circuit, to deliver on its fuel output at a predetermined minimum pressure, the pressure of the fuel supplied to the regulating circuit being the highest of those delivered by the centrifugal pump (100) and the auxiliary pumping unit (110).

Une pompe centrifuge (100) entraînée par couplage mécanique avec le moteur (14) a une entrée basse pression recevant du carburant d'un circuit carburant (11) de l'aéronef et une sortie haute pression reliée à un circuit de régulation (120) de débit de carburant fourni en moteur, et un groupe (110) de pompage d'assistance à commande électrique ayant une entrée reliée au circuit carburant de l'aéronef et une sortie reliée au circuit de régulation de débit, pour délivrer sur sa sortie du carburant à une pression minimale prédéterminée, la pression du carburant fournie au circuit de régulation étant la plus élevée de celles délivrées par la pompe centrifuge (100) et le groupe (110) de pompage d'assistance.

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