Increased capacity face gear arrangement for transmitting torque

Machine element or mechanism – Gearing – Plural power paths to and/or from gearing

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74411, 74416, F16H 112

Patent

active

052338860

ABSTRACT:
A gear arrangement for transmitting torque through an angle and through a plurality of power extraction paths. The arrangement includes a driving shaft, a floating spur gear pinion concentrically mounted on the drive shaft, a pair of concentric and opposed face gears that are in meshing engagement with the pinion, a primary driven shaft mounted to one of the face gears and at least one non-floating spur gear also in meshing engagement with both face gears. The driving shaft is located by a bearing or a flexible coupling at the shaft end remote from the gear box to allow the pinion to float freely. Useful power may be extracted from both face gears and the non-floating spur gear as well as additional spur gears that are placed in meshing engagement with the face gears.

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Robert C. Bill, Advanced Rotorcraft Transmission Program, pp. 229, 237, presented at 46th Annual Forum of American Helicopter Society, May 21-23, 1990, Washington, D.C.
D. G. Lewicki, AVSCOM Technical Memorandum 90-C-006, pp. 4, 5, presented at Helicopter Transmission Design and Maintenance Workshop, May 21-25, 1990, Quebec City, Canada.

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