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US 10,118,693 B2Granted
Gearwheel set, in particular for a gyroplane
AssigneeZF Friedrichshafen AG
InventorsSergej Lieder, Reinhold Ruhland
Life of this patent
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Abstract
The present disclosure relates to a gear set, especially for a rotary-wing aircraft, with two intermeshing gear wheels, each mounted on a respective shaft. In particular, in a normal section, the gear wheels of the gear set have different pressure angles on a drive side from the pressure angles on a freewheel side at the beginning of an engagement.
Claims16
A gear set for a rotary-wing aircraft, comprising:
- two intermeshing gear wheels, each mounted on a respective shaft, wherein at least one of the shafts is configured to couple to a respective rotor of the rotary-wing aircraft, wherein in a normal section, a pressure angle on a drive side of said two intermeshing gear wheels is different from a pressure angle on a freewheel side of said two intermeshing gear wheels at the beginning of an engagement of said two intermeshing gear wheels;
- wherein during the engagement, the pressure angle on the drive side of the two intermeshing gear wheels shows a different course than the pressure angle on the freewheel side of the said two intermeshing gear wheels;
- and
- wherein said two intermeshing gear wheels are configured such that during the engagement, the sum of the pressure angle on the drive side of said two intermeshing gear wheels and the pressure angle on the freewheel side of said two intermeshing gear wheels remains constant;
- wherein said two intermeshing gear wheels are bevel wheels such that the axes of the respective shafts intersect.
2 more elements
Dependencies are inferred from the claim text.