Scalable multi-element shape memory alloy rotary motor
US9885345B2 · kind B2 · utility
3Cited by
14References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 10, 2014 |
| Grant date | Feb 6, 2018 |
| Priority date | — |
| Expiry date | Jun 14, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF03G7/0641
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A scalable multi-element shape memory alloy (SMA) rotary motor employs a plurality of SMA tubes. A ratcheting gear transmission couples the plurality of SMA tubes in parallel to a common output. A controller provides power to a plurality of heaters associated with each of the plurality of SMA tubes, sequentially heating selected heaters to provide continuous rotational motion of the common output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.