Rotor hub for rotary wing aircraft
US9802698B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2015 |
| Grant date | Oct 31, 2017 |
| Priority date | — |
| Expiry date | May 2, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C27/32
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A rotor hub configured to support and rotate a plurality of rotor blades about an axis of rotation is includes a cylindrical body having a central shaft hole including the axis of rotation. The shaft hole has a radius extending from the axis of rotation radially. A plurality of radial spokes extends from the cylindrical body in a spoke direction. A plurality of arcuate segments extends between the distal ends of adjacent spokes to define a plurality of hub apertures. The spoke direction extends at an angle to the radial direction in both the horizontal plane, and a vertical plane, perpendicular to the horizontal plane. A line defined by the spoke direction does not intersect the axis of rotation. The spoke direction extends at an angle in the horizontal plane in a direction opposite to a direction of rotation of the rotor hub about the axis of rotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.