Fiber reinforced/epoxy matrix composite helicopter rotor yoke
US4585393A · kind A · utility
9Cited by
11References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1983 |
| Grant date | Apr 29, 1986 |
| Priority date | — |
| Expiry date | Mar 22, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C27/35
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A composite helicopter hub yoke is described. The yoke is made up of glass fibers unidirectionally oriented in the direction of principle stress, i.e. along the length of the yoke. The yoke also has clevis sections on either end and the clevis sections additionally contain multiaxially oriented multiple plies of unidirectionally oriented continuous graphite fibers interleaved with the unidirectionally oriented continuous glass fibers to produce crack resistance, damage tolerance, and integrity inspectability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.