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US 2026/0309183 A1Published application
Drive shaft with non-cylindrical shape
AssigneeHamilton Sundstrand Corporation
InventorsMark R. Gurvich, Brayton Reed, Joyel M. Schaefer, Michael King
Life of this patent
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Abstract
A drive shaft extends between axial ends and has at least one portion through which an outer diameter of the drive shaft changes through an infinite number of diameters, with the at least one portion extending across at least 15% of an axial distance between the axial ends of the drive shaft. A drive shaft with a generally spiral undulation at its outer periphery is also disclosed.
Claims20
A drive shaft comprising:
- a drive shaft extending between axial ends and having a single portion through which an outer diameter of said drive shaft changes through an infinite number of diameters, with the single portion extending across an entire axial distance between said axial ends of said drive shaft.
A drive shaft comprising:
- a drive shaft extending between axial ends and having two portions through which an outer diameter of said drive shaft changes through an infinite number of diameters, with said at least two portions each extending across at least 15% of an axial distance between said axial ends of said drive shaft;
- and
- a central cylindrical section is between said two portions.
An assembly comprising:
- a drive shaft extending between axial ends and having an effective axial cross-sectional shape which is either convex or concave, across at least 15% of an axial distance between said axial ends of said drive shaft;
- a drive input connected to a first end of the drive shaft;
- and
- a propeller connected to a second end of the drive shaft.
1 more element
Dependencies are inferred from the claim text.