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Dual output variable pitch turbofan actuation system
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Griswold Jr., R. H. |
| Copyright Year | 1976 |
| Description | An improved actuating mechanism was provided for a gas turbine engine incorporating fan blades of the variable pitch variety, the actuator adapted to rotate the individual fan blades within apertures in an associated fan disc. The actuator included means such as a pair of synchronizing ring gears, one on each side of the blade shanks, and adapted to engage pinions disposed thereon. Means were provided to impart rotation to the ring gears in opposite directions to effect rotation of the blade shanks in response to a predetermined input signal. In the event of system failure, a run-away actuator was prevented by an improved braking device which arrests the mechanism. |
| File Size | 1028609 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19770007082 |
| Archival Resource Key | ark:/13960/t4pk55n5v |
| Language | English |
| Publisher Date | 1976-11-30 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Propulsion And Power Actuators Blade Tips Turbofans Gas Turbine Engines Aircraft Brakes Variable Pitch Propellers Rotating Shafts Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
