Composite material variable pitch blade for helicopter rotor and manufacturing process of such a blade
US6227805A · kind A · utility
9Cited by
11References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1999 |
| Grant date | May 8, 2001 |
| Priority date | — |
| Expiry date | Mar 16, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C27/473
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
It concerns the making of a composite material blade according to the RTM process in which the casing cover, the spars and the anchoring reinforcements of the blade are respectively constituted from at least one fabric cut-out which includes at least two folds of intersecting carbon fiber fabric, the folds being superposed on each other forming a pre-specified angle between them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.