ELECTROHYDRAULIC PITCH-CONTROL SYSTEM WITH A VALVE PUMP IN A ROTATING REFERENCE FRAME

The present invention relates to a pitch-change mechanism for a turbine engine propeller, said turbine engine comprising a stator portion and a rotor portion, said pitch-change mechanism comprising an electrohydraulic actuator comprising: -a cylinder for actuating the propeller, comprising a first c...

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Bibliographic Details
Main Authors DE WERGIFOSSE, Huguette, AURIOL, Jacques
Format Patent
LanguageEnglish
Published 01.08.2024
Subjects
AEROPLANES
AIRCRAFT
ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSIONTRANSMISSIONS IN AIRCRAFT
AVIATION
COSMONAUTICS
EQUIPMENT FOR FITTING IN OR TO AIRCRAFT
FLYING SUITS
HELICOPTERS
PARACHUTES
PERFORMING OPERATIONS
TRANSPORTING
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Summary:The present invention relates to a pitch-change mechanism for a turbine engine propeller, said turbine engine comprising a stator portion and a rotor portion, said pitch-change mechanism comprising an electrohydraulic actuator comprising: -a cylinder for actuating the propeller, comprising a first chamber and a second chamber; -a hydraulic pump suitable for selectively supplying the first chamber or the second chamber of the cylinder with pressurized hydraulic fluid; -a hydraulic fluid reservoir configured to store a pressurized hydraulic fluid; -a valve controlled between a first position in which the valve places the first chamber of the cylinder in fluid communication with the hydraulic pump, and a second position in which the valve places the first chamber of the cylinder in fluid communication with the hydraulic fluid reservoir.
Bibliography:Application Number: US202218564446