Passive bimetallic actuator for heat transfer

Details Passive bimetallic actuator for heat transfer Passive bimetallic actuator for heat transfer

1998-09-14

2000-03-21

Tapolcai, William E.

Automatic temperature and humidity regulation

Thermostatic

In fluid controlled

236101E, G05D 2308

Patent

active

060392622

ABSTRACT:
The invention is a bimetallic actuator for heat-transfer applications where the source of energy is provided by a temperature difference between two eservoirs or the temperature change of the ambient. The actuator requires no external source of power for actuation. The actuator can be made with a separate heating resistor and connected to an external power source for operation in the active mode. The actuator could be a flap, a gate, a valve, or a cooling tunnel used to regulate flow anytime there is temperature difference between two environments or a change in the ambient temperature.

REFERENCES:
patent: 2673687 (1954-03-01), Alban et al.
patent: 2763433 (1956-09-01), Hill
patent: 3895646 (1975-07-01), Howat
patent: 3980103 (1976-09-01), Drzewiecki
patent: 4245778 (1981-01-01), Diermayer
patent: 4441653 (1984-04-01), Grudich

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