Rotary kinetic fluid motors or pumps – With means for controlling casing or flow guiding means in... – Having specific features for water current
Patent
1990-12-07
1993-02-09
Kwon, John T.
Rotary kinetic fluid motors or pumps
With means for controlling casing or flow guiding means in...
Having specific features for water current
417330, 60398, F03B 1312
Patent
active
051849364
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
Tidal energy, or the energy in a tide, is an untapped but potential resource. The gross quantity of this energy is sizeable, but it is poor in quality. This is why such energy has not been used commercially. Hitherto, public interest in making practical use of tidal energy has been directed to exploiting the energy contained in a head of sea water. The present invention, however, makes it possible to obtain the energy in the air compressed by means of water pressure and to thus gather tidal energy which is dispersed over a wide area.
It is self-evident that compressed air has energy. The compressed air, if an air pipe is provided in communication therewith, can easily be transported with a small loss in energy.
SUMMARY OF THE INVENTION
The present invention comprises a first group of containers fixed in plural piles in the natural sea having a tidal difference in sea level height, which containers are spaced parallel to one another at fixed intervals, each of which containers is opened at a lower side thereof and is capable of holding air therein; a second group of containers fixed in plural piles in tideless water within an artificial dam, which containers of the second group are spaced parallel to one another at fixed intervals, each of which containers is opened at a lower side thereof and is capable of holding air therein; and air pipes providing communication between the respective containers of the first group in the natural sea and the respective containers of the second group within the artificial dam.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will now be described in conjunction with the accompanying drawings, in which:
FIG. 1(A) is a schematic cross-section of a first group of containers in the sea at low tide;
FIG. 1(B) is the same view as FIG. 1(A), except that air has artificially been introduced into the containers;
FIGS. 1(C) and 1(D) are the same views as FIG. 1(A), except that the sea is at high tide;
FIG. 2 is a schematic cross-section of one embodiment of the present invention, at high tide; and
FIG. 3 is the same view as FIG. 2, except that the sea is at low tide.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
FIG. 1(A) shows a group of containers 1, 2, 3 and 4 in the sea at low tide, in which container 1 is above the surface 20 of the sea in a state of letting air naturally come therein. FIG. 1(B) shows container 2 in a state in which air 30 has been artificially transferred thereinto to stay as compressed air. FIGS. 1(C) and 1(D) show the containers 1, 2, 3 and 4 at high tide. In FIG. 1(C), compressed air 40 having first tidal energy is made in the container 1. In FIG. 1(D), second tidal energy is added to the compressed air in the container 2. FIG. 2 is a cross-sectional view at a time when the compressed air 40 in the container 1, which has been made as shown in FIG. 1(C) at high tide, is transferred into a container 5 of a group of containers 5, 6, 7 and 8 within an artificial dam 70. The transfer is conducted through an air pipe P in the direction of solid arrow 45 by opening or closing a valve O. FIG. 3 is a cross-sectional view at a time when compressed air 40a, which has been stored in the container 5 of the artificial dam 70 as shown in FIG. 2 at high tide, is transferred into the container 2 in the natural sea at low tide. The transfer is conducted through another air pipe P' in the direction of solid arrow 55 by opening or closing another valve O'.
Referring first to FIG. 1(A), the container 1 lies above the surface 20 of the sea at low tide, and contains air. At this time, the containers 2, 3 and 4 are under water and have no air therein. When the tide has risen to result in the state shown in FIG. 1(C), the compressed air 40 in the container 1 is transferred into the container 5 within the dam 70 through the air pipe P to be stored therein, as shown in FIG. 2. Then, after the tide has ebbed or lowered again, as shown in FIG. 3, the compressed air 40a stored in the container 5 is transferred through the other air pipe P' into th
REFERENCES:
patent: 875042 (1907-12-01), Bissell
patent: 4253032 (1981-02-01), Lochner
patent: 4392061 (1983-07-01), Dubois et al.
patent: 5005357 (1991-04-01), Fox
Kwon John T.
Yugen Kaisha Parasight
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