Pumps – Motor driven – Fluid motor
Patent
1992-06-02
1993-09-21
Bertsch, Richard A.
Pumps
Motor driven
Fluid motor
606418, F04B 1700
Patent
active
052463508
ABSTRACT:
A high efficiency solar powered water pumping system (10) includes a solar collector (12) for heating and vaporizing a working fluid. The vaporized working fluid is passed to a motor and valve assembly (20) that alternatively delivers the working fluid to a power unit (22) and exhausts the working fluid from the power unit to a condenser (32). The power unit has a driving member (128) that moves up and down driving a sucker rod (194) of a sucker rod assembly (26) which raises water from a well in the earth. The water pumped from the ground passes through a tube (36) in the condenser. The working fluid which has been exhausted from the power unit into the condenser, condenses to a liquid. The liquid working fluid is then pumped from the condenser by a positive displacement pump (40) and is returned to the solar collector to repeat the cycle.
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MTD Thermal Form No. 770-6979D Solar Water Pumping Instructions.
Lackstrom David
Raghunathan Kidambi
Bertsch Richard A.
International Product & Technology Exchange, Inc.
Jocke Ralph E.
Korytnyk Peter
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