Installation for supplying fuel to turbojet engine of airplane, has auxiliary pump dimensioned based on requirements of fuel supplied to turbojet engine during ignition, while considering fuel flow rate assured at speed by main pump

摘要

The installation has a main pump (14) driven mechanically and dimensioned based on requirements of fuel supplied to a turbojet engine in full out rate, and an auxiliary pump (16) controlled and dimensioned based on the requirements of fuel supplied to the turbojet engine during ignition, while considering a fuel flow rate assured at speed by the main pump. An electric motor (18) actuates the auxiliary pump. The main and auxiliary pumps are connected in a parallel manner. Inlets of the two main and auxiliary pumps are connected to an outlet of a boost pump (12) i.e. centrifugal-type boost pump.