WO2012017416A1 - A forced supply system for hydraulic turbines - Google Patents

A forced supply system for hydraulic turbines Download PDF

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Publication number
WO2012017416A1
WO2012017416A1 PCT/IB2011/053506 IB2011053506W WO2012017416A1 WO 2012017416 A1 WO2012017416 A1 WO 2012017416A1 IB 2011053506 W IB2011053506 W IB 2011053506W WO 2012017416 A1 WO2012017416 A1 WO 2012017416A1
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WO
WIPO (PCT)
Prior art keywords
basin
water
fact
artificial channel
fluid current
Prior art date
Application number
PCT/IB2011/053506
Other languages
French (fr)
Inventor
Pierangelo Ricci
Original Assignee
Pierangelo Ricci
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pierangelo Ricci filed Critical Pierangelo Ricci
Priority to EP11760563.4A priority Critical patent/EP2601406A1/en
Publication of WO2012017416A1 publication Critical patent/WO2012017416A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B17/00—Other machines or engines
    • F03B17/06—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/08—Machine or engine aggregates in dams or the like; Conduits therefor, e.g. diffusors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/16—Stators
    • F03B3/18—Stator blades; Guide conduits or vanes, e.g. adjustable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/10—Stators
    • F05B2240/13—Stators to collect or cause flow towards or away from turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/40—Use of a multiplicity of similar components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/30—Arrangement of components
    • F05B2250/32—Arrangement of components according to their shape
    • F05B2250/323—Arrangement of components according to their shape convergent
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient

Definitions

  • TITLE A FORCED SUPPLY SYSTEM FOR HYDRAULIC TURBINES.
  • the present invention relates to the field of the sustainable energies, particularly the sustainable sources for the hydroelectric energy production.
  • said basins can modify the landscape and change the natural habitat, besides that they can cause the migration of people and the loss of farm lands.
  • the environmental problems can be caused because the dams stop the transport of river solids, and therefore increase the erosion of the river bed to the sea where, since the solid contribution has been reduced or even eliminated it occurs the erosion of the coasts.
  • the object of the present invention consists of solving the above-mentioned problems, by providing a further plant for producing hydroelectric energy, comprising an artificial channel which is parallel to the banks of a fluid current, for example a river having a high flow T/IB2011/053506
  • a conveying basin supported by the water present in the artificial channel itself, which withdraws the water from the river by supplying it inside a structure such as a watertight industrial warehouse.
  • At least two series-connected tanks inside said structure and directly connected to the basin, said tanks supply one or more hydraulic turbines (for example Kaplan, bulb turbines, etcetera) adapted to convert the inlet hydraulic energy into mechanical energy.
  • hydraulic turbines for example Kaplan, bulb turbines, etcetera
  • a first advantage of said system is due to the fact that it is not diverted the whole river, but just a portion is conveyed into an artificial channel and a portion into the conveying basin, where, after having being used by our system, for extracting its energy, goes back to the river.
  • Another advantage consists of the fact that the adopted approaches are arranged in a way to insure the worker safety inside the structure, such as a warehouse, and of the equipments received inside it.
  • Figure la illustrates a top view of the system according to a possible variant of the embodiment
  • FIG. 3 illustrates a view of a particular at the inlet of the system
  • FIG. 3a illustrates a view of a particular at the inlet of the system according to a possible variant of the embodiment
  • Figure 4a illustrates a view of a particular of the system according to the variant illustrated in Figure la
  • FIG. 5 illustrates a view of another particular at the inlet of the system; which is larger at the inlet of a conveyor,
  • Figure 6 illustrates a top view of the system according to a further possible variant of the embodiment .
  • 1 indicates the conveying means adapted to divert part of the water flow rate of a fluid current 100, for example a river.
  • Said conveying means 1 comprise an artificial channel 5, with an inlet of the fluid current 100 for example at 30°C, having banks higher than the main embankment 23, this is done both the plant is built in a flood plain area and outside the main embankment 23 itself.
  • the water stored inside said artificial channel 5 supports a basin 6 having the inlet side 16 inserted in the fluid current 100 and parallel to the cross-section of the current itself at the area wherein the water speed is the highest ( Figure 1) .
  • a float 9, placed at the water surface in the artificial channel 5, above the basin 6, has the double function to maintain the basin 6 under the water surface (avoiding in this way its sinking) and to facilitate said vertical movement .
  • Water acceleration means 2 are present downstream the conveying means 1 and are mainly formed by at least a tank 10 having a constant cross-section, hinged to the basin 6 by a watertight connection system 21 capable of vertically moving, and at least a tank 11 having a convergent shape, adapted to accelerate the flow rate conveyed in it.
  • Said tanks 10 and 11 are supported by a platform 12 which can be movable.
  • the platform 12 tilt (and therefore the tanks 10, 11 tilt) is increased or reduced by changing the head H of one or more hydraulic turbines 3 (for example a Kaplan, bulb turbines, etcetera) located downstream said tanks 10 and 11.
  • one or more hydraulic turbines 3 for example a Kaplan, bulb turbines, etcetera
  • the tilt of said platform 12 can be obtained by using a plurality of hydraulic or pneumatic jacks 13.
  • the acceleration means 2 and the hydraulic turbines 3 are enclosed in a structure 14, such as a warehouse, having the support surface lower than the bottom of the fluid current 100 and an inlet ramp 22 located higher than the structure itself.
  • a gate 15 adapted to prevent the water present in the artificial channel 5 to enter the structure 14 itself.
  • the forced supply system for hydraulic turbines is located parallelly to a fluid current 100, for example a river having a high flow rate.
  • a portion of the water of said fluid current 100 is conveyed in the artificial channel 5 and kept outside the warehouse 14 by the gate 15.
  • this water flow rate is the one which adjusts the height of the basin 6 by keeping at the water surface the float 9 to which it is fixed.
  • the basin 6, in turn, withdraws water wherein the speed of the fluid current 100 is the highest ( Figures 1 and 5), and filters out possible floating elements through the grid 18.
  • the water flows from the basin 6 to the tank 10 hinged to the former by the watertight connection system 21.
  • the water, accelerated in the convergent tank 11, is delivered through the flexible tube 19 to the turbines 3 so that, by the head H obtained by changing the tilt of the platform 12 with the jacks 13, the hydraulic energy of the water flow rate can be converted into mechanical energy.
  • the basin 6, the jacks 13 and consequently the platform 12 and tanks 10 and 11, besides the consequent head H, can be arranged and driven through a software.
  • the water acceleration means 2, located downstream the conveying means 1, comprise at least one constant cross-section tank 10 and at least one tank 11a having, unlike the preceding case, just one upper tapered surface. This approach enables to insert a plurality of flexible tubes 19, connected to the tank 11 by a watertight movable junction 4, and consequently to set up a plurality of turbines 3.
  • Figure 6 shows a further possible variant of the embodiment for exploiting the high and low tide wherein there is a variation of the water flow direction.
  • the basin 6 and the corresponding float 9 comprise a branch 6a, 9a located in a further artificial channel 5a tilted at an angle of about 120° with respect to the preceding one, so that the new inlet side is in front of the preceding inlet side 16 for enabling to receive the water in the two tide flow directions.
  • the two basins 6 and 6a intersect one with the other and in the intersection point there is a valve hinged in the intersection corner which closes or opens one of the two basins 6, 6a as a function of the inlet flow.

Abstract

The invention refers to the field of the sustainable energies, particularly to the hydroelectric energy production. The forced supply system for hydraulic turbines comprises an artificial channel (5) provided parallelly to the banks of a fluid current (100), for example, a river having a high flow rate and a basin (6), supported by the water present in the artificial channel (5) itself, which withdraws water from the river and supplies it inside a structure (14), such a watertight industrial warehouse. Inside said structure (14), there are at least two series-connected tanks (10 and 11), of which at least one having a convergent shape inside said structure (14) which are directly connected to the basin (6), said tanks supply one or more hydraulic turbines (3) (for example Kaplan, bulb turbines, etcetera) adapted to convert the inlet hydraulic energy in mechanical energy.

Description

TITLE: A FORCED SUPPLY SYSTEM FOR HYDRAULIC TURBINES.
D E S C R I P T I O N
The present invention relates to the field of the sustainable energies, particularly the sustainable sources for the hydroelectric energy production.
The prior art provides that the hydroelectric energy is obtained by rivers and lakes thanks to the building of dams and penstocks, which are therefore great building works having a substantial environment impact.
These works, due to the flooding of large areas, can cause the disruption of the ecosystem of the area with consequent enormous environmental damages.
Indeed, said basins can modify the landscape and change the natural habitat, besides that they can cause the migration of people and the loss of farm lands.
The environmental problems can be caused because the dams stop the transport of river solids, and therefore increase the erosion of the river bed to the sea where, since the solid contribution has been reduced or even eliminated it occurs the erosion of the coasts.
The object of the present invention consists of solving the above-mentioned problems, by providing a further plant for producing hydroelectric energy, comprising an artificial channel which is parallel to the banks of a fluid current, for example a river having a high flow T/IB2011/053506
2
rate or a conveying basin, supported by the water present in the artificial channel itself, which withdraws the water from the river by supplying it inside a structure such as a watertight industrial warehouse.
There are at least two series-connected tanks (at least one having a convergent shape) inside said structure and directly connected to the basin, said tanks supply one or more hydraulic turbines (for example Kaplan, bulb turbines, etcetera) adapted to convert the inlet hydraulic energy into mechanical energy.
A first advantage of said system is due to the fact that it is not diverted the whole river, but just a portion is conveyed into an artificial channel and a portion into the conveying basin, where, after having being used by our system, for extracting its energy, goes back to the river.
In this way, the above-mentioned environmental problems are absent.
Another advantage consists of the fact that the adopted approaches are arranged in a way to insure the worker safety inside the structure, such as a warehouse, and of the equipments received inside it.
Said objects and advantages are all met by the forced supply system for hydraulic turbines, object of the present invention, which is characterized for what is provided in the attached claims.
This and other characteristics will be better understood from the following description of a preferred embodiment shown in an exemplifying and non-limiting way in the attached drawings.
- Figure 1 illustrates a top view of the system,
Figure la illustrates a top view of the system according to a possible variant of the embodiment,
- Figure 2 illustrates a side view of the system,
- Figure 3 illustrates a view of a particular at the inlet of the system,
- Figure 3a illustrates a view of a particular at the inlet of the system according to a possible variant of the embodiment,
- Figure 4 illustrates a view of a particular of the system,
- Figure 4a illustrates a view of a particular of the system according to the variant illustrated in Figure la,
- Figure 5 illustrates a view of another particular at the inlet of the system; which is larger at the inlet of a conveyor,
Figure 6 illustrates a top view of the system according to a further possible variant of the embodiment .
Referring particularly to the figures, 1 indicates the conveying means adapted to divert part of the water flow rate of a fluid current 100, for example a river.
Said conveying means 1 comprise an artificial channel 5, with an inlet of the fluid current 100 for example at 30°C, having banks higher than the main embankment 23, this is done both the plant is built in a flood plain area and outside the main embankment 23 itself.
The water stored inside said artificial channel 5 supports a basin 6 having the inlet side 16 inserted in the fluid current 100 and parallel to the cross-section of the current itself at the area wherein the water speed is the highest (Figure 1) .
As shown in Figure 5, it is provided a further embodiment of the system wherein the basin 6 is shorter and has a convergent-tapered shape, in this way it is not impeded the navigation of the fluid current 100. In this way, the water speed increases since it is not influenced by the shortening of the basin 6 itself.
17 indicates at least one taper present in the inlet side 16 of the basin 6. Said taper 17, besides making easier the inlet of the water, has the function of limiting the load losses at the inlet of the basin 6 itself . On said basin 6 there are sleeves 8, which enable the basin to vertically move along supporting rods 7 by following the movement of the water present in the artificial channel 5, and a grid 18 in the inlet side 16, adapted to retain any floating elements which could obstruct its passage.
A float 9, placed at the water surface in the artificial channel 5, above the basin 6, has the double function to maintain the basin 6 under the water surface (avoiding in this way its sinking) and to facilitate said vertical movement .
Water acceleration means 2 are present downstream the conveying means 1 and are mainly formed by at least a tank 10 having a constant cross-section, hinged to the basin 6 by a watertight connection system 21 capable of vertically moving, and at least a tank 11 having a convergent shape, adapted to accelerate the flow rate conveyed in it.
It is to be noted that a further approach (not shown in the figures) can be implemented by using a single convergent tank having a length equal to the sum of the two tanks 10 and 11.
Said tanks 10 and 11 are supported by a platform 12 which can be movable.
The platform 12 tilt (and therefore the tanks 10, 11 tilt) is increased or reduced by changing the head H of one or more hydraulic turbines 3 (for example a Kaplan, bulb turbines, etcetera) located downstream said tanks 10 and 11.
As shown in Figure 2, the tilt of said platform 12 can be obtained by using a plurality of hydraulic or pneumatic jacks 13.
In the last 'Cross-section of the convergent tank 11 (Figure 4), connected to the tank itself by a watertight movable connection 4, there is at least a flexible tube 19 which delivers the water to the turbines 3.
Lastly, through flexible discharging tubes 20, the water coming from the turbines 3 returns to the main fluid current 100.
In order to ensure an easy and safe servicing of the plant, the acceleration means 2 and the hydraulic turbines 3 are enclosed in a structure 14, such as a warehouse, having the support surface lower than the bottom of the fluid current 100 and an inlet ramp 22 located higher than the structure itself.
At the inlet of said structure 14, there is a gate 15 adapted to prevent the water present in the artificial channel 5 to enter the structure 14 itself.
Operatively, the forced supply system for hydraulic turbines is located parallelly to a fluid current 100, for example a river having a high flow rate.
A portion of the water of said fluid current 100 is conveyed in the artificial channel 5 and kept outside the warehouse 14 by the gate 15.
As shown in Figure 2, this water flow rate is the one which adjusts the height of the basin 6 by keeping at the water surface the float 9 to which it is fixed.
The basin 6, in turn, withdraws water wherein the speed of the fluid current 100 is the highest (Figures 1 and 5), and filters out possible floating elements through the grid 18.
In the shown example, the water flows from the basin 6 to the tank 10 hinged to the former by the watertight connection system 21.
Therefore, the water, accelerated in the convergent tank 11, is delivered through the flexible tube 19 to the turbines 3 so that, by the head H obtained by changing the tilt of the platform 12 with the jacks 13, the hydraulic energy of the water flow rate can be converted into mechanical energy.
Now, the water coming from the turbines 3 returns through the flexible discharging tubes 20 to the main fluid current 100.
It is to be noted that the basin 6, the jacks 13 and consequently the platform 12 and tanks 10 and 11, besides the consequent head H, can be arranged and driven through a software.
Further, it is to be noted that it is possible to further increase said head H (and therefore the water flow rate to the turbines 3) by lowering the pipe 19 under the height of the bottom of the fluid current 100. Referring to Figures la, 3a and 4a, according to a possible variant of the embodiment, the water acceleration means 2, located downstream the conveying means 1, comprise at least one constant cross-section tank 10 and at least one tank 11a having, unlike the preceding case, just one upper tapered surface. This approach enables to insert a plurality of flexible tubes 19, connected to the tank 11 by a watertight movable junction 4, and consequently to set up a plurality of turbines 3.
Figure 6 shows a further possible variant of the embodiment for exploiting the high and low tide wherein there is a variation of the water flow direction. Particularly, the basin 6 and the corresponding float 9 comprise a branch 6a, 9a located in a further artificial channel 5a tilted at an angle of about 120° with respect to the preceding one, so that the new inlet side is in front of the preceding inlet side 16 for enabling to receive the water in the two tide flow directions. The two basins 6 and 6a intersect one with the other and in the intersection point there is a valve hinged in the intersection corner which closes or opens one of the two basins 6, 6a as a function of the inlet flow.

Claims

C LA I M S
1. Forced supply system for hydraulic turbines characterized by the fact it comprises:
- conveying means (1) adapted to divert a portion of the flow rate of a fluid current (100);
- means (2) for accelerating said flow rate;
- one or more hydraulic turbines (3) for converting the hydraulic energy into mechanical energy.
2. System, according to claim 1, characterized by the fact said conveying means (1) comprise:
- an artificial channel (5), the water contained in it supports a basin (6) by sleeves (8) which enable the basin (6) to vertically move along supporting rods (7), by following the movement of the water present in the artificial channel (5) itself, and a grid (18) at the inlet side (16), adapted to retain possible floating elements which could obstruct its passage,
a float (9), placed at the water surface of the artificial channel (5) above the basin (6), having the double function of maintaining the basin (6) itself under the water surface by avoiding its sinking and of facilitating the vertical movement of the same.
3. System, according to claim 1, characterized by the fact said accelerating means (2) comprise at least one tank (10) of constant cross-section, hinged to the basin (6) by a watertight connection system (21) capable of vertically moving, at least one convergent-shaped tank (11) or (11a) adapted to accelerate the water flow rate conveyed by it, a platform (12) supporting said tanks (10, 11) and a flexible pipe (19) connected to said tank (11) or (11a) by a watertight movable connection (4) .
4. System, according to claim 3, characterized by the fact said platform (12) is tiltable by means of a plurality of jacks (13) .
5. System, according to claim 2, characterized by the fact the basin (6) has the inlet side (16) inserted in the fluid current (100), parallelly to the cross-section of the fluid current (100) itself in the area wherein the water speed is the highest, with tapered corners in order to reduce the load losses and a grid (18) adapted to retain any floating elements which could obstruct the passage .
6. System, according to claim 1, characterized by the fact the basin (6), in order to not impede the navigation of the fluid current (100), is shorter and has a convergent tapered shape.
7. System, according to claim 1, characterized by the fact the basin (6) and the corresponding float (9) comprise a branch (6a, 9a) located in a further artificial channel (5a) tilted at an angle of about 120° with respect to the preceding one, so that the new inlet side is in front of the preceding inlet side (16) for enabling to receive the water in the two tide flow directions, the two basins (6, 6a) intersect one with the other and comprise in the intersection point a valve hinged in the intersection corner which closes or opens one of the two basins (6, 6a) as a function of the inlet flow .
PCT/IB2011/053506 2010-08-06 2011-08-05 A forced supply system for hydraulic turbines WO2012017416A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11760563.4A EP2601406A1 (en) 2010-08-06 2011-08-05 A forced supply system for hydraulic turbines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPR2010A000068 2010-08-06
ITPR2010A000068A IT1401346B1 (en) 2010-08-06 2010-08-06 FORCED FEEDING SYSTEM FOR HYDRAULIC TURBINES

Publications (1)

Publication Number Publication Date
WO2012017416A1 true WO2012017416A1 (en) 2012-02-09

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ID=43739587

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Application Number Title Priority Date Filing Date
PCT/IB2011/053506 WO2012017416A1 (en) 2010-08-06 2011-08-05 A forced supply system for hydraulic turbines

Country Status (3)

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EP (1) EP2601406A1 (en)
IT (1) IT1401346B1 (en)
WO (1) WO2012017416A1 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2619388A1 (en) * 1976-04-30 1977-11-17 Amengual Rotger Hydroelectric turbine generator set - in which head drop due to slope of bed is used to drive submerged turbine
JPS53148643A (en) * 1977-05-31 1978-12-25 Tooru Fujii Generating plant by using stream of rivers
JPS5475030A (en) * 1977-11-25 1979-06-15 Mitsui Shipbuilding Eng Prefabricated type smalllsized generating unit
JPH0323669U (en) * 1989-07-17 1991-03-12
DE4332479A1 (en) * 1993-09-24 1995-03-30 Theodor Prasso Water power installation for utilising small gradients
DE10346166A1 (en) * 2002-10-10 2004-04-22 Achim Solbach Water powered system especially for mountain rivers, has intake pressure tube and power house sunk below ground in the river bed
US7084521B1 (en) * 2005-02-17 2006-08-01 Martin Gerald G Method and apparatus for generating hydro-electric power
WO2007072513A1 (en) * 2005-12-20 2007-06-28 Ener Water Limited Hydroelectric floating device and hydroelectric power station comprising such a device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2619388A1 (en) * 1976-04-30 1977-11-17 Amengual Rotger Hydroelectric turbine generator set - in which head drop due to slope of bed is used to drive submerged turbine
JPS53148643A (en) * 1977-05-31 1978-12-25 Tooru Fujii Generating plant by using stream of rivers
JPS5475030A (en) * 1977-11-25 1979-06-15 Mitsui Shipbuilding Eng Prefabricated type smalllsized generating unit
JPH0323669U (en) * 1989-07-17 1991-03-12
DE4332479A1 (en) * 1993-09-24 1995-03-30 Theodor Prasso Water power installation for utilising small gradients
DE10346166A1 (en) * 2002-10-10 2004-04-22 Achim Solbach Water powered system especially for mountain rivers, has intake pressure tube and power house sunk below ground in the river bed
US7084521B1 (en) * 2005-02-17 2006-08-01 Martin Gerald G Method and apparatus for generating hydro-electric power
WO2007072513A1 (en) * 2005-12-20 2007-06-28 Ener Water Limited Hydroelectric floating device and hydroelectric power station comprising such a device

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Publication number Publication date
IT1401346B1 (en) 2013-07-18
ITPR20100068A1 (en) 2012-02-07
EP2601406A1 (en) 2013-06-12

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