| 摘要 |
An elongated arm, pivotally mounted at the center to a support structure includes a large, bulbous reservoir attached at either end thereof. The arm is hollow and a passageway therethrough joins the two reservoirs. A volatile fluid which vaporizes at a relatively low temperature (125 DEG F. or less) is placed within the reservoir/passageway to provide the activating fluid for the device. A first insulated chamber including a heat exchange means with source of heat input in the walls thereof encapsulates each reservoir when the reservoir is pivoted to its lowermost point, causing the volatile liquid to vaporize and flow to the other end where it condenses and causes that end to lower. To hasten condensation of the fluid, a second, cooling insulated chamber encloses the reservoir when it is in its uppermost position. This second chamber includes a cooling substance in the walls thereof which rapidly cools the volatile fluid to its condensed state whereby the fluid forces the reservoir downwardly to the lowermost heat input position. An electrical generator or other energy converter is associated with and operated responsively to movement of the arm.
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