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US 12,503,248 B2Granted
Turboprop capable of providing a ram air turbine function and aircraft comprising such a turboprop
AssigneeSafran Helicopter Engines
InventorsLucie Stéphanie Apostin, Didier Claude Chartrain, Jean-Michel Presse
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Abstract
A turboprop includes a propeller, a propeller shaft carrying the propeller, the propeller being a variable-pitch propeller having a propeller pitch, a rotating electric machine having at least a first configuration in which it is mechanically coupled to the propeller shaft and at least one oil pump configured to supply a hydraulic circuit for adjusting the pitch of the propeller. The oil pump is configured to be electrically operated. An aircraft can include such a turboprop and methods can control such a turboprop and such an aircraft.
Claims10
A turboprop comprising:
- a propeller,
- a propeller shaft carrying the propeller, the propeller being a variable-pitch propeller having a propeller pitch,
- a rotating electric machine having at least a first configuration in which it is mechanically coupled to the propeller shaft, and
- at least one oil pump configured to supply a hydraulic circuit for adjusting the propeller pitch, the at least one oil pump is configured to be electrically operated,
- wherein the at least one oil pump is configured to supply fluid to bearings of the turboprop.
2 more elements
Dependencies are inferred from the claim text.