Shape memory alloy actuator
Abstract
An actuator for cycling between first and second positions includes a first shaped memory alloy (SMA) leg, a second SMA leg. At least one heating/cooling device is thermally connected to at least one of the legs, each heating/cooling device capable of simultaneously heating one leg while cooling the other leg. The heating/cooling devices can include thermoelectric and/or thermoionic elements.
- Inventors:
-
- Knoxville, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 873922
- Patent Number(s):
- 6272857
- Assignee:
- UT-Battelle, LLC (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F03 - MACHINES OR ENGINES FOR LIQUIDS F03G - SPRING, WEIGHT, INERTIA OR LIKE MOTORS
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01H - ELECTRIC SWITCHES
- DOE Contract Number:
- AC05-96OR22464
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- shape; memory; alloy; actuator; cycling; positions; shaped; leg; heating; cooling; device; thermally; connected; legs; capable; simultaneously; devices; thermoelectric; thermoionic; elements; memory alloy; shape memory; device capable; simultaneously heating; thermally connected; cooling device; /60/
Citation Formats
Varma, Venugopal K. Shape memory alloy actuator. United States: N. p., 2001.
Web.
Varma, Venugopal K. Shape memory alloy actuator. United States.
Varma, Venugopal K. Mon .
"Shape memory alloy actuator". United States. https://www.osti.gov/servlets/purl/873922.
@article{osti_873922,
title = {Shape memory alloy actuator},
author = {Varma, Venugopal K},
abstractNote = {An actuator for cycling between first and second positions includes a first shaped memory alloy (SMA) leg, a second SMA leg. At least one heating/cooling device is thermally connected to at least one of the legs, each heating/cooling device capable of simultaneously heating one leg while cooling the other leg. The heating/cooling devices can include thermoelectric and/or thermoionic elements.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}
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Works referenced in this record:
Multilayer Thermionic Refrigeration
journal, May 1998
- Mahan, G. D.; Woods, L. M.
- Physical Review Letters, Vol. 80, Issue 18