US 11,994,204 B2
Gear assembly for aeronautical engine with lubricant storing pockets
Pietro Molesini, Castelnuovo del Garda (IT); Saypen Baraggia Au Yeung, Valenza (IT); and Miriam Manzoni, Sesto San Giovanni (IT)
Assigned to GE AVIO S.R.L., Rivalta di Torino (IT)
Filed by GE Avio S.r.l., Turin (IT)
Filed on Jun. 23, 2021, as Appl. No. 17/355,282.
Claims priority of application No. 102020000015064 (IT), filed on Jun. 23, 2020.
Prior Publication US 2022/0049765 A1, Feb. 17, 2022
Int. Cl. F16H 57/04 (2010.01)
CPC F16H 57/0423 (2013.01) [F16H 57/045 (2013.01); F16H 57/046 (2013.01); F16H 57/0495 (2013.01); F05D 2220/323 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A gear assembly comprising:
a first gear disposed at a centerline axis of the gear assembly;
a second gear coupled to the first gear to form a first mesh between the first gear and the second gear;
a third gear coupled to the second gear to form a second mesh between the second gear and the third gear;
a static portion coupled to the second gear, the static portion having a pocket; and
a primary lubrication system providing a flow of lubricant to the first mesh during an operating condition and not providing the flow of lubricant to the first mesh during an interruption condition, the primary lubrication system comprising a spraybar disposed within the static portion, the spraybar having a supply opening providing the flow of lubricant to the first mesh during the operating condition and the pocket collecting at least a portion of the flow of lubricant during the operating condition,
wherein the static portion, the second gear, the third gear, and the second mesh, define a flow aperture spaced from the pocket, the portion of the flow of lubricant flowing from the pocket through the flow aperture to simultaneously contact both the second gear and the third gear, lubricating the second mesh, such that the second gear lubricates the first mesh without the portion of the flow of lubricant first being carried on the third gear.