Automatic-cycling heat-powered fluid pump

Pumps – Motor driven – Fluid motor

Patent

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Details

606419, F04B 1700, F03G 706

Patent

active

051143186

ABSTRACT:
An improved heat-powered pump comprising two variable-volume fluid-containing systems located within two rigid walled containers, a pumping container and a condensing container. Each variable volume system is composed of a first variable volume chamber located within the pumping container, a second variable volume chamber located within the condensing container and a fluid conducting means interconnecting the first and second variable volume chambers. The fluid to be pumped occupies one of the two above-described systems and a quantity of a volatile working fluid which changes between its liquid and vaporous states during a normal pumping cycle occupies the other of the two systems. Finally a heat source is provided for vaporizing the volatile liquid and a heat sink is provided for condensing the volatile liquid vapor.

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