Heat-powered water pump

Details Heat-powered water pump Heat-powered water pump

1978-03-27

1979-12-04

Smith, Leonard E.

Pumps

Motor driven

Fluid motor

60531, 60641, 417394, F04B 1700, F03G 702, F03G 706

Patent

active

041770196

ABSTRACT:
A heat-powered water pump including a vapor generator and a vapor-inflatable pumping member enclosed in a pumping chamber. The vapor generator and pumping member form a closed system for a volatile working fluid. Check valves control the movement of vapor and condensate through the closed system as well as the direction of water through the pump. The vapor generator is configurated to be heated either by a solar concentrator or by heat from combustion of agricultural wastes. The expandable diaphragm/pumping piston operates in a pumping chamber having a diametrally enlarged check valve above the diaphragm to accommodate the rapid explusion of water from the pumping chamber upon expansion of the expandable diaphragm.

REFERENCES:
patent: 490526 (1893-01-01), Wheeler
patent: 1780336 (1930-11-01), Canton
patent: 2212281 (1940-08-01), Ullstrand
patent: 2688923 (1954-09-01), Bonaventura et al.
patent: 2755745 (1956-07-01), Lewis
patent: 2867974 (1959-01-01), Wenander
patent: 2918219 (1959-12-01), MacCracken
patent: 3309012 (1967-03-01), Booth et al.
patent: 4089325 (1978-05-01), Brola

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