Stoves and furnaces – Heat accumulator structures
Patent
1977-12-13
1980-07-08
Shoap, Allan N.
Stoves and furnaces
Heat accumulator structures
165 46, 165 81, 165104S, 220 85B, 220426, B65D 2518, B65D 8902, F28F 900
Patent
active
042112087
ABSTRACT:
A container is disclosed for storing a heat storage medium which changes ween solid and fluid states to store and release heat, characterized in that the container includes flexible walls which are displaced to vary the volume of the container in accordance with changes of the volume of the heat storage medium when in the solid state. The container includes at least one biasing device which normally biases the resilient walls toward an inwardly contracted condition for storing a first volume of the heat storage medium in the fluid state. During initial removal of heat from the medium, the medium changes from its fluid to its solid state, and upon further removal of heat from the solid medium, the density of the solid medium increases, thereby resulting in a decrease in the volume of the solid medium with the container remaining in its initial contracted condition. Upon addition of heat to the solid medium, the density of the solid medium decreases thereby resulting in an increase in volume of the solid medium and an attendant increase in volume of the container to its expanded condition.
REFERENCES:
patent: 1892527 (1932-12-01), Gray
patent: 2394853 (1946-02-01), Goddard
patent: 2432025 (1947-12-01), Lorenz
patent: 2621719 (1952-12-01), Eaton et al.
patent: 2932546 (1960-04-01), Marsgraf et al.
patent: 3016938 (1962-01-01), Akrep
patent: 3219892 (1965-11-01), Wurster
patent: 3346101 (1967-10-01), Pestka
patent: 3448775 (1969-06-01), Limback et al.
Deutsche Forschungs -und Versuchsanstalt fur Luft -und Raumfahrt
Laubscher Lawrence E.
Shoap Allan N.
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