Propeller blade retention system
US5263898A · kind A · utility
40Cited by
16References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 1991 |
| Grant date | Nov 23, 1993 |
| Priority date | — |
| Expiry date | Dec 2, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C11/06
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention concerns the mounting of propeller blades to a ring-shaped rotor. The blades are of the variable pitch type, and the shank of each blade extends through a respective hole in the rotor. Each hole contains an annular shelf which is fastened to the wall of the hole and surrounds each shank. Each shank bears a pair of bearing races which sandwich the annular shelf in order to connect the blade to the rotor. Bearing rollers are positioned between the annular shelf and the bearing races.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.