Pumps – Motor driven – Fluid motor
Patent
1976-12-16
1980-10-14
Smith, Leonard E.
Pumps
Motor driven
Fluid motor
60531, 60641, 60669, F04B 1700, F03G 702, F01K 1100
Patent
active
042278660
ABSTRACT:
A solar energy device for producing a continuous mechanical motion to drive apparatus such as a well pump comprises a frame made of conduit sections that supports a heat collector to receive the sun's rays. Heat generated within the collector is transferred to a network of conduits therein through which an evaporatable fluid is circulated as it is heated to its vaporous state. The vaporized fluid or gas is furnished to a vapor pressure motor having a common connection to the conduit network. The motor is situated within the collector and has a movable piston operated by its own valving system that produces a continuous reciprocating action. The piston is connected to an output shaft that engages a working lever arm connected to the pump. Vapor used to operate the motor is conveyed to a condenser within the frame where it is cooled to its liquid state by water produced by the well pump which is forced through the frame. An auxiliary pump attached to the condenser collects the condensed working fluid and is operable by the working lever arm to recycle it back to the collector. A combination shutoff and control valve for vaporized fluid is provided between the collector and the motor to help make the device self-starting without manipulation or auxiliary energy when the collector first becomes exposed to the sun each day.
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patent: 1785651 (1930-12-01), Romagnoli
patent: 2413287 (1946-12-01), Bush
patent: 3937599 (1976-02-01), Thureau et al.
patent: 4038826 (1977-08-01), Shaw
patent: 4094146 (1978-06-01), Schweitzer
Smith Leonard E.
Solar Pump Corporation
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