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US 8,475,323 B2Granted
Combination brake clutch drive system and rotary-wing aircraft using same
AssigneeSikorsky Aircraft Corporation
InventorBrandon L. Stille
Life of this patent
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Abstract
A drive system includes a planetary gear system. An input is affixed to a sun gear of the planetary gear system to rotate therewith and an output is affixed to the output ring gear to rotate therewith. A first brake system is selectively operable to rotationally lock an output ring gear of the planetary gear system, and a second brake system is selectively operable to rotationally lock the planet carrier of the planetary gear system. Rotary-wing aircraft implementations of the drive system are also disclosed.
Claims21
A drive system comprising:
- a planetary gear system which includes a sun gear in meshing engagement with a multiple of planet gears, said multiple of planet gears supported on a planet carrier, said multiple of planet gears in meshing engagement with an output ring gear;
- an input affixed to said sun gear of said planetary gear system to rotate therewith;
- an output affixed to said output ring gear to rotate therewith;
- a first brake system selectively operable to rotationally lock said output ring gear;
- a second brake system selectively operable to rotationally lock said planet carrier of said planetary gear system;
- and
- a translational thrust system driven by said output.
4 more elements
Dependencies are inferred from the claim text.