TURBOMACHINE COMPRISING AN ACCESSORY DRIVE BOX, A LUBRICATION UNIT AND AN OIL TANK
By attaching the oil reservoir directly to the equipment housing, the integration challenges of the oil reservoir and accessory drive box in turbomachines are addressed, enabling compact assembly and maintaining lubrication circuit pressure in unducted fan configurations.
FR3149043B1Active Publication Date: 2025-08-29SAFRAN AIRCRAFT ENGINES SAS
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Patent Information
- Application Number
- FR2023005223
- Authority / Receiving Office
- FR · FR
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2023-05-25
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2043-05-25
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Abstract
The invention relates to a turbomachine (1) comprising: - a casing (4', 12), - an accessory drive box (20) suspended and connected to the casing (4', 12) comprising a housing (22) defining an internal cavity, and a gear train arranged in the internal cavity, - a lubrication unit (26) comprising an equipment housing (28) attached and fixed to the housing (22), at least one pump (29) located in the equipment housing (28) and comprising a rotor coupled to the gear train, and an oil inlet (31) connected to the pump (29), and - an oil reservoir (27) comprising an oil outlet (34) connected to the oil inlet (31) of the lubrication unit (26), characterized in that the reservoir (27) is directly fixed to the equipment housing (28) and is placed above the lubrication group (26) so that the oil flows by gravity into the lubrication group (26). Abstract figure: 7
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