TURBOMACHINE FOR AN AIRCRAFT
The turbomachine design with an annular gear row reverses propeller rotation direction efficiently, addressing performance and part variability challenges in turbomachinery systems.
FR3169937A1Pending Publication Date: 2026-06-19SAFRAN TRANSMISSION SYST
Patent Information
- Authority / Receiving Office
- FR · FR
- Patent Type
- Applications
- Current Assignee / Owner
- SAFRAN TRANSMISSION SYST
- Filing Date
- 2024-12-16
- Publication Date
- 2026-06-19
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Abstract
Turbomachine (10) for an aircraft, said turbomachine (10) comprising a gas generator having at least one compressor (1a, 1b), a combustion chamber (1c) and at least one turbine (1d, 1e), said at least one turbine (1d, 1e) having a first shaft (3) connected by a mechanical reducer (6) to a propulsion propeller (S), the reducer (6) having a solar (11) coupled to the first shaft (3), a ring gear (14) extending around the solar (11) and coupled to a second shaft (4) for driving the propeller (S), and planetary gears (12) which are meshed respectively with the solar (11) and the ring gear (14) and which are carried by a planetary carrier (13), characterized in that the ring gear (14) is coupled to the second shaft (4) by an annular row of pinions (20). Figure for the abbreviation: Figure 3
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