Valve driven by shape memory alloy

Details Valve driven by shape memory alloy Valve driven by shape memory alloy

1989-09-26

1990-11-27

Walton, George L.

Valves and valve actuation

Heat or buoyancy motor actuated

60528, 137594, F16K 3102

Patent

active

049730240

ABSTRACT:
A valve including a wire-shaped element of shape memory alloy as its driving source. The wire-shaped element is mechanically associated with a valve element so as to undergo an elongation from its original length when the valve element is moved in a predetermined direction, which can be either a direction to open a valve port or a direction to close the valve port. A biasing device biases the valve element in the predetermined direction. When the shape memory alloy is not heated to its critical temperature, it undergoes an elongation due to the biasing device, allowing the valve element to close/open the valve port. On the other hand, when heated to its critical temperature or higher, the shape memory alloy exhibits the shape memory effect contracting to its original length, whereupon the valve element opens/closes the valve port.

REFERENCES:
patent: 3403238 (1968-09-01), Buehler
patent: 3625002 (1971-12-01), Davis
patent: 3650505 (1972-03-01), Drexel
patent: 4325217 (1982-04-01), Golestaneh
patent: 4674398 (1987-06-01), Taylor
patent: 4736587 (1988-04-01), Suzuki
patent: 4750520 (1988-06-01), Heim et al.
patent: 4799577 (1989-01-01), de Carbon

Affiliated with

Also associated with

Rating

Valve driven by shape memory alloy does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Valve driven by shape memory alloy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valve driven by shape memory alloy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1027738