Lubrication for a planetary gearset
AssigneeSafran Aircraft Engines
InventorSerge René Morreale
Life of this patent
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Abstract
The invention concerns an epicycloidal gear train comprising a central pinion (26), an outer crown (28) and satellite pinions (32) in engagement with the central pinion (26) and the outer crown (28) and each mounted freely rotatable on a satellite carrier (36), the gear train (10) comprising means for lubricating the teeth and axes (34) of the satellite pinions (32), these means including an annular cup (56) integral with the satellite carrier (36) opened radially inward. According to the invention, an annular bailer (64) is arranged radially inside the cup (56) and applied annularly sealingly to it, the annular bailer (64) being fixed in rotation to the central pinion (26).
Claims22
An epicycloidal gear train comprising a central pinion, an outer crown and satellite pinions in engagement with the central pinion and the outer crown and each mounted freely rotatable on a satellite carrier, the train comprising means for lubricating teeth and axes of the satellite pinions, these means comprising an annular cup integral with the satellite carrier opened radially inwardly, characterized in that an annular bailer is arranged radially inside the cup and applied annularly sealingly thereto, the annular bailer being integral with the central pinion in rotation and an annular space being defined between a shaft and the annular bailer.
Dependencies are inferred from the claim text.