Pumps – Motor driven – Fluid current motor
Patent
1987-06-15
1989-04-11
Stout, Donald E.
Pumps
Motor driven
Fluid current motor
417334, 415 88, 416 86, F04B 1700
Patent
active
048201340
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
This invention relates to a loop pump for pumping liquid, i.e. a pump comprising a pipe or the like embodied in a number of turns/loops, which pipe is rotated by a drive source in order to introduce alternately air and liquid into an inlet and which pipe pumps the liquid to a drawing place by way of a conduit or the like rotatably connected with the pipe.
It is previously known to use so-called loop pumps/spiral pumps for lifting liquid from a low level to a higher one. Such a pump comprises a pipe bent in several turns/loops to a helical form or a passage made in another way, which pipe or passage is outwardly open at one of its ends to form the intake end/liquid inlet of the pipe and which pipe or passage is connected at its other end by way of a rotatable coupling with a pipe or hose leading to the higher level to which the liquid is to be lifted. During the work of the pump the spiral is partly immersed in the liquid to be lifted so that when the spiral is rotated its intake end will be alternately below and above the liquid level so as to take in alternately liquid and air. The air enclosed in the spiral will be compressed and this compression is successively increased in the helical turns and is maximal in the last turn connected with the outlet. The pump gives off alternately liquid and compressed air to its outlet, and in this way the liquid will be given off intermittently at the outlet of the pump.
Pumps of the above-mentioned type now known are, as far as is known, stationarily installed at their place of use and operated by a drive source requiring "external" energy such as an electric motor or a combustion motor.
SUMMARY OF THE INVENTION
It is the object of this invention to provide a loop pump/spiral pump so embodied that it is driven by flow energy in the liquid, part of which is to be lifted by means of the pump to a higher height level, and this object is achieved in that the pump has been given the characteristic features set forth in the claims.
The inventive pump which is very pro-environmental and silent can thus be placed anywhere in a liquid flow of some type and carry out its lifting of liquid to a higher height level without any supply of other energy than the kinetic energy in the liquid flow being required. Moreover, the inventive pump is so designed that it has inherent floating power, and therefore it need only be anchored in the surroundings of the liquid flow to prevent it from accompanying the liquid flow. This anchoring can be made so that the pump adjusts itself automatically to the prevailing direction of flow.
Thus, the pump of the invention does not require much energy and is reliable, and it can also be used in nature without any problems at very remote and isolated places where intervals between different inspections can be very long for different reasons. Furthermore, it is easy to move the pump between different places of use as its installation is extremely uncomplicated.
DESCRIPTION OF THE DRAWINGS
Illustrative examples of the invention will be described in greater detail in the following with reference to the enclosed drawings, wherein
FIG. 1 shows a longitudinal section of an embodiment of an inventive loop pump,
FIG. 2 shows schematically the pump in a view according to II--II according to FIG. 1,
FIG. 3 shows a section III--III of the pump according to FIG. 1,
FIG. 4 is a perspective view of an alternative embodiment of the inventive loop pump and
FIG. 5 shows a section of the pump according to FIG. 4 taken along line V--V in FIG. 4.
DETAILED DESCRIPTION
The loop pump 1 shown in FIG. 1 comprises a conical drum 2 supporting externally a number of turns (loops) of a pipe or hose 3. At one of its ends the hose 3 has an inlet opening 4 being the liquid inlet of the loop pump. At its other end the hose 3 is connected via a so-called swivel coupling (i.e., a rotary joint) 5 with a line 6 for lifting liquid and starting from the pump 1, which line is drawn up to the drawing place to which the liquid is to be pumped. The pipe line
REFERENCES:
patent: 548078 (1895-10-01), Miller
patent: 896581 (1908-08-01), Robinson et al.
patent: 932446 (1909-08-01), Combs
patent: 932628 (1909-08-01), Meyer
patent: 1035055 (1912-08-01), Seaman
patent: 1035993 (1912-08-01), Moore
patent: 1061605 (1913-05-01), Gillett
patent: 1293480 (1919-02-01), Lear
patent: 2730631 (1956-01-01), Dandini
patent: 3275198 (1966-09-01), Barlow
patent: 3393643 (1968-07-01), Herman
patent: 4010647 (1977-03-01), Kissell et al.
Aktiebolaget De Lavals Angturbin, "Pumpteknik", vol. 2, published 1956 by Svenska Tryckeriaktiebolaget (Stockholm), p. 20.
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