Rotor for rotary wing aircraft
US4028001A · kind A · utility
15Cited by
8References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 28, 1975 |
| Grant date | Jun 7, 1977 |
| Priority date | — |
| Expiry date | Jul 28, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C27/35
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
This invention provides a rotor hub for a rotary wing aircraft in which elastomeric bearing means are utilized to transmit centrifugal loads and blade pitch, flap and lead lag movements, and in which the blades are foldable about a pivot located outboard of the elastomeric bearing means between extended and folded positions. Locking means are provided to ensure that no deflection of the elastomeric bearing means occurs during the folding operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.