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US 2015/0086358 A1Published application
Rotorcraft rotor including primary pitch horns and secondary horns
AssigneeThe Boeing Company
InventorEvan J. Filter
Life of this patent
Estimating the term…
Abstract
A rotorcraft rotor comprises a blade having a pitch axis, a primary pitch horn for the blade, and a secondary horn opposite the primary pitch horn with respect to the pitch axis.
Claims20
A rotorcraft rotor comprising:
- a blade having a pitch axis;
- a primary pitch horn for the blade;
- and
- a secondary horn opposite the primary pitch horn with respect to the pitch axis.
1 more element
A rotorcraft comprising:
- a rotor mast having a z-axis;
- a rotor hub mounted to the rotor mast;
- a plurality of blade assemblies secured to the rotor hub, each blade assembly including a primary pitch horn and a secondary horn;
- a rocker carrier configured to rotate about the z-axis and slide long the z-axis;
- and
- a plurality of rocker arms corresponding to the plurality of blade assemblies, the rocker arms pivoted to the rocker carrier, opposing sides of each rocker arm linked to the primary pitch horn and the secondary horn of the corresponding blade assembly.
3 more elements
A method comprising using primary pitch horns to vary pitch of rotorcraft blades;
- and using secondary horns to vary flight mechanics of the blades;
- wherein angle of the secondary horns is unchanged or minimally changed with respect to angle of the primary pitch horns as the blades travel their collective and pitch cycle changes.
Dependencies are inferred from the claim text.