Planetary gear reducer for aircraft turbomachinery and corresponding turbomachinery

The planetary gear reducer with retention rings in grooves addresses ring gear breakage issues by containing debris, enhancing safety without significant mass increase.

FR3165607B1Active Publication Date: 2026-06-26SAFRAN TRANSMISSION SYST
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Patent Information

Authority / Receiving Office
FR · FR
Patent Type
Patents
Current Assignee / Owner
SAFRAN TRANSMISSION SYST
Filing Date
2024-08-14
Publication Date
2026-06-26

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Abstract

The reducer is provided with a ring comprising at least one cylindrical body (21) having a first lateral face (23), a second lateral face (24), and an external peripheral face (25) connecting said lateral faces, and at least one retaining ring (22) received in an annular groove (28) formed in said external peripheral face. Figure for the abbreviation: Fig 3
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