Pumps – Processes
Patent
1979-01-25
1980-07-15
Wilhite, Billy J.
Pumps
Processes
417209, F04B 1924
Patent
active
042125936
ABSTRACT:
A heat-powered water pump apparatus and method, the apparatus including a reservoir, a pumping chamber, an evaporator, metering apparatus for metering a volatile liquid to the evaporator and a vapor standpipe for delivering vapor from the evaporator to the pumping chamber. The metering apparatus includes a metering cup and a siphon tube in the metering cup. The evaporator is configurated as a metal block having known heat capacity characteristics so as to store sufficient thermal energy to suitably evaporate the metered volatile liquid delivered thereto. Thermal energy for the evaporator may be provided by solar energy or by a conventional combustion source. The method includes heating the evaporator and delivering a metered quantity of volatile liquid from the pumping chamber to the evaporator to produce a predetermined quantity of vapor thereby displacing water from the reservoir with the vapor.
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Nydegger Rick D.
Utah State University Foundation
Wilhite Billy J.
Workman H. Ross
Young J. Winslow
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