Rotary actuator utilizing a shape memory alloy

Details Rotary actuator utilizing a shape memory alloy Rotary actuator utilizing a shape memory alloy

1987-07-16

1988-08-09

Husar, Stephen F.

Power plants

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

Mass is a solid

60527, F03G 706

Patent

active

047619554

ABSTRACT:
A simple, lightweight, compact and easily fabricated rotary actuator is provided that utilizes a shape memory alloy as an operative part thereof. The shaped memory alloy is wrapped around an accumulator, with one end of the wire attached to a point fixed with respect to the rotary accumulator and the other end attached to the accumulator itself. The wire contracts when heated forcing the accumulator to rotate.

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patent: 4275561 (1981-06-01), Wang
patent: 4472939 (1984-09-01), Wang
patent: 4497527 (1985-02-01), Cameron
patent: 4556050 (1985-12-01), Hodgson et al.

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