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Cyclical bi-directional rotary actuator
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 1977 |
| Description | A thermally powered rotary actuator is disclosed which is used for positioning a shaft in first and second positions which are disposed 180 deg apart. A pair of heat extensible springs are attached to the shaft and to the frame of the rotary actuator for selectively rotating the shaft from one of its two positions to the other position upon the application of heat to one of the heat extensible springs. The heat extensible springs are preferably constructed from the alloy 55-Nitinol. In the preferred embodiment, a detent mechanism is provided for locking the rotatable shaft in its two rotary positions. |
| File Size | 1019273 |
| Page Count | 12 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19770012514 |
| Archival Resource Key | ark:/13960/t3wt3gb0c |
| Language | English |
| Publisher Date | 1977-03-01 |
| Access Restriction | Open |
| Subject Keyword | Mechanical Engineering Rotary Stability Actuators Positioning Nitinol Alloys Cyclic Accelerators Temperature Effects 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 |
