Decoupler shaft and air turbine starter having such a decoupler
US4871296A · kind A · utility
49Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1988 |
| Grant date | Oct 3, 1989 |
| Priority date | — |
| Expiry date | Nov 7, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/134
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A torque limiting decoupler shaft transmits driving torque in a first sense without torque limiting action. However, torque applied to the shaft in a reverse sense opposite the driving torque results in an axial separating force between two portions of the decoupler shaft. When the reverse torque reaches a certain level a frangible tensile bar member fractures to permit decoupling of the shaft portions. A component of the shaft prevents undesirable recoupling of the shaft portions while also insuring that the relatively rotating portions of the shaft do not flail. An air turbine starter includes such a decoupler shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.