Heat-powered water pump

Details Heat-powered water pump Heat-powered water pump

1978-03-31

1979-12-04

Smith, Leonard E.

Pumps

Motor driven

Fluid motor

60531, 60641, 417395, F04B 1700, F03G 702, F03G 706

Patent

active

041770200

ABSTRACT:
A heat-powered water pump including a flash boiler and a metering device for metering a predetermined quantity of condensate to the flash boiler. A flexible pumping member is enclosed in a pumping chamber and is expanded by the vapor to force water from the pumping chamber. The flexible pumping member also serves as the heat exchange surface for transferring heat from the vapor into the water surrounding the pumping member thereby condensing the vapor. The condensate is collected in a condensate reservoir and is valved into the metering device upon collapse of the pumping member during condensation of the vapor.

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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