Pumps – One fluid pumped by contact or entrainment with another – Liquid pumped by supplying or exhausting gaseous motive...
Patent
1984-11-07
1987-06-09
Croyle, Carlton R.
Pumps
One fluid pumped by contact or entrainment with another
Liquid pumped by supplying or exhausting gaseous motive...
417138, 417334, F04B 1704
Patent
active
046717420
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
Supplying water in areas where a communal water conduit system is not available is a major problem. Such areas are mostly far from the nearest inhabited land, thus, it is difficult to provide them with any kind of source of energy with which the conventional water supply systems could be operated.
PRIOR ART
Heretofore, a great number of different pumps for bailing water from natural or artificial water containers such as wells, ponds or water tanks or the like have been used. Besides piston pumps, membrane pumps and plunger or submerged pumps, pumps operated with pressurized air are nowadays utilized in water supply systems, especially where a relatively small water production is required. In the source of water, a production head is immersed through which the pressurized air is led into the water container and the greater pressure forces the water out of the source of water. The pressurized air is produced by conventional compressors driven by internal combustion engines or by electric motors. Unfortunately, the usefulness of these systems is limited--in addition to what has been said hereinabove--by the fact that the production and delivery of the pressurized air is controlled on a time basis and, therefore, only compressors and driving means with stationary characteristics can be used.
Where other sources of energy are not available, natural energy in form of e.g. natural wind energy is abundantly available, throughout the world. As is well known, there are several reasons for the lack of utilizing the natural energies. However, it has already been proposed to use wind motors for generating electric power or to bail water from wells. In the latter case, the rotational motion of the rotor blades of the wind motor is converted into an alternating motion of a vertical shaft to which a piston or a membrane immersed in the water to be lifted are attached. This is shown in the book of Frank R. Eldridge: "Wind Machines" (Van Rostrand Reinhold Company, New York, 1980, P. 22 and 77).
A great difficulty when using wind motors has always been how to protect the wind motor, its carrier mechanism and the devices attached to it against the damage of stormy weather and great wind intensity. Furthermore, the wind motor should rotate as constantly as possible independently from the always changing wind intensity. Until now, this problem was not solved. In the above said book (P. 36), arrangements for turning the wind motor out of the wind when the wind intensity is too great are proposed. In this safety position, the wind motor is stopped.
SUMMARY OF THE INVENTION
The main object of the invention is, in view of the above, to provide a water supply system which is not bound to "artificial" sources of energy such as any petroleum product or electricity and with which a stable water production is possible. For this, a unit for converting the natural wind energy into another usable form of energy should be constructed, which is easy to manufacture and reliable in function independently from the wind intensity. Furthermore, an apparatus for supplying water should be provided, too, with which the inconveniences of the known systems are at least partially eliminated and which is operated by pressurized air and is not sensitive to the change in the pressure and amount of the pressurized air.
Part of the main object to be achieved with this invention is, finally, to combine an energy conversion means such as wind motor, an air pressurizing means such as a compressor and a water supplying arrangement for producing water in a simple, reliable and unexpensive manner.
According to the invention, the water supply system comprises a unit for converting the wind energy into another usable form of energy and a unit for supplying water driven by said another usable form of energy. The improvement is that the unit for converting the wind energy is a wind motor having rotor blades and a control mechanism for constant load on the rotor blades independently from the wind intensity, the unit for converting the kinetic e
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patent: 4084921 (1978-04-01), Norz
patent: 4174926 (1979-11-01), Hamnick et al.
patent: 4249598 (1981-02-01), Greer
patent: 4380419 (1983-04-01), Morton
Croyle Carlton R.
Kozponti Valto-es Hitelbank Rt. Innovacios Alap
Olds T. W.
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