Patent ID: 11867076
Assignee: SAFRAN AIRCRAFT ENGINES
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 7:
8. An assembly of an electronic control unit and a system for lubricating an aeronautical engine and a reduction gearbox associated with the aeronautical engine, wherein the system is according to any of the preceding claims, the electronic control unit incorporating means for calculating a respective oil flow rate in the second circuit to the aeronautical engine and in the first circuit to the reduction gearbox,
the electronic control unit comprising means for controlling the opening of the variable-section jet pump so that the flow rate (Q1-Qp) in the first circuit, after the variable-section jet pump has collected the part of the flow rate (Qp) in the first circuit in order to supply the second circuit is equal to the calculated oil flow rate to the reduction gearbox and, the second pump being driven by second motorization means, the control unit comprising means for controlling a speed of rotation of the second motorization means of the second pump in order to ensure the calculated oil flow rate in the second circuit, or
the electronic control unit incorporating means for controlling the three-way valve in order to ensure the calculated oil flow rate in the second circuit to the aeronautical engine and the calculated oil flow rate in the first circuit to the reduction gearbox.