Torque generating device using shape memory alloy

Details Torque generating device using shape memory alloy Torque generating device using shape memory alloy

1991-02-13

1992-02-11

Ostrager, Allen M.

Power plants

Motor operated by expansion and/or contraction of a unit of...

Mass is a solid

F03G 706

Patent

active

050866184

ABSTRACT:
Torque generating device using shape memory alloy consisting of multiple casings arranged at equal distances around the periphery of a rotatable wheel, each casing housing a coil of shape memory alloy. Part of the wheel is in a high temperature region where the temperature is higher than the transformation temperature of the shape memory alloy and part of the wheel is in a low temperature region where the temperature is lower than the transformation temperature of the shape memory alloy. When in the high temperature region the reversion force of the alloy rotates the rotatable wheel and in the low temperature region the alloy is forcibly deformed.

REFERENCES:
patent: 3430441 (1969-03-01), Adams
patent: 3760645 (1973-09-01), Soto et al.
patent: 4938026 (1990-07-01), Goldstein

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