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1. WO2013002874 - SHAPE MEMORY ALLOY ACTUATOR SYSTEM AND METHOD

Publication Number WO/2013/002874
Publication Date 03.01.2013
International Application No. PCT/US2012/033111
International Filing Date 11.04.2012
IPC
B64C 13/38 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
13Control systems or transmitting systems for actuating flying-control surfaces, lift-increasing flaps, air brakes, or spoilers
24Transmitting means
38with power amplification
F03G 7/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
GSPRING, WEIGHT, INERTIA, OR LIKE MOTORS; MECHANICAL-POWER-PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
7Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
06using expansion or contraction of bodies due to heating, cooling, moistening, drying, or the like
CPC
F03G 7/065
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
GSPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
7Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
06using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like
065using a shape memory element
F16D 41/07
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
41Freewheels or freewheel clutches
06with intermediate wedging coupling members between an inner and an outer surface
069the intermediate members wedging by pivoting or rocking, e.g. sprags
07between two cylindrical surfaces
F16D 43/25
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
43Automatic clutches
02actuated entirely mechanically
25controlled by thermo-responsive elements
Applicants
  • THE BOEING COMPANY [US]/[US] (AllExceptUS)
  • GUNTER, Ian M. [US]/[US] (UsOnly)
Inventors
  • GUNTER, Ian M.
Agents
  • SATERMO, Eric K
Priority Data
13/112,84820.05.2011US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SHAPE MEMORY ALLOY ACTUATOR SYSTEM AND METHOD
(FR) SYSTÈME ET PROCÉDÉ POUR ACTIONNEUR EN ALLIAGE À MÉMOIRE DE FORME
Abstract
(EN)
An actuator assembly (10) may comprise a housing (12), a shaft (62), a shape memory alloy (SMA) torque tube (18), and first and second unidirectional bearings (32,36). The SMA torque tube (18) may rotate the shaft (62). The first unidirectional bearing (32) may limit rotation of the shaft (62) relative to the SMA torque tube (18) to a first direction. The second unidirectional bearing (36) may prevent rotation of the shaft (62) relative to the housing (12) along a second direction opposite the first direction.
(FR)
L'invention concerne un ensemble actionneur qui peut comporter un boîtier, un arbre, un tube de couple en alliage à mémoire de forme (SMA), et des premier et second roulements unidirectionnels. Le tube de couple SMA peut faire tourner l'arbre. Le premier roulement unidirectionnel peut limiter une rotation de l'arbre par rapport au tube de couple SMA dans une première direction. Le second roulement unidirectionnel peut empêcher une rotation de l'arbre par rapport au boîtier dans une seconde direction opposée à la première direction.
Also published as
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