Ram air turbine speed sensing ball detent over-speed prevention mechanism
US7296970B2 · kind B2 · utility
12Cited by
2References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2005 |
| Grant date | Nov 20, 2007 |
| Priority date | — |
| Expiry date | May 15, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64D41/007
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A ram air turbine (RAT) prevents release of its turbine blades due an over-speed condition by detecting an over-speed condition with a turbine hub-mounted centrifugally operated trigger mechanism and rotating the blades to a fixed coarse pitch position with a release mechanism that responds to the trigger mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.