Heat exchange – Movable heating or cooling surface – Rotary drum
Patent
1979-05-30
1981-08-04
Scott, Samuel
Heat exchange
Movable heating or cooling surface
Rotary drum
62383, F28F 2700
Patent
active
042817080
ABSTRACT:
An automatic thermal switch to control heat flow includes a first thermally conductive plate, a second thermally conductive plate and a thermal transfer plate pivotally mounted between the first and second plates. A phase-change power unit, including a plunger connected to the transfer plate, is in thermal contact with the first thermally conductive plate. A biasing element, connected to the transfer plate, biases the transfer plate in a predetermined position with respect to the first and second plates. When the phase-change power unit is actuated by an increase in heat transmitted through the first plate, the plunger extends and pivots the transfer plate to vary the thermal conduction between the first and second plates through the transfer plate. The biasing element, transfer plate and piston can be arranged to provide either a normally closed or normally open thermally conductive path between the first and second plates.
REFERENCES:
patent: 3229755 (1966-01-01), Komarow
patent: 3399717 (1968-09-01), Cline
patent: 3430455 (1969-03-01), Stuart et al.
patent: 3478819 (1969-11-01), Reinke
patent: 3502138 (1970-03-01), Shlosinger
patent: 3717201 (1973-02-01), Hosmer et al.
patent: 3957107 (1976-05-01), Altoz et al.
Martin-Marietta Publication, "Viking Mars Surface Thermal Control", (pp. TS 4-16 incl.) (5 shts. Dwg., 3 shts. Spec.).
Cunningham Joseph W.
Wing Lawrence D.
Manning John R.
Marchant Robert D.
Scott Samuel
Streule, Jr. Theophil W.
The United States of America as represented by the Administrator
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