WO2009072048A2 - Construction of an in-pipe turbine - Google Patents

Construction of an in-pipe turbine Download PDF

Info

Publication number
WO2009072048A2
WO2009072048A2 PCT/IB2008/055016 IB2008055016W WO2009072048A2 WO 2009072048 A2 WO2009072048 A2 WO 2009072048A2 IB 2008055016 W IB2008055016 W IB 2008055016W WO 2009072048 A2 WO2009072048 A2 WO 2009072048A2
Authority
WO
WIPO (PCT)
Prior art keywords
turbine
pipe
benkatina
nozzle
blade
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/IB2008/055016
Other languages
French (fr)
Other versions
WO2009072048A3 (en
Inventor
Daniel Farb
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA2707476A priority Critical patent/CA2707476A1/en
Priority to US12/745,549 priority patent/US20100303621A1/en
Priority to EP08857666A priority patent/EP2227631A2/en
Priority to JP2010535501A priority patent/JP2011505517A/en
Priority to CN2008801196962A priority patent/CN101932827A/en
Publication of WO2009072048A2 publication Critical patent/WO2009072048A2/en
Publication of WO2009072048A3 publication Critical patent/WO2009072048A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • 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
    • F05B2220/00—Application
    • F05B2220/60—Application making use of surplus or waste energy
    • F05B2220/602—Application making use of surplus or waste energy with energy recovery turbines
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/50—Hydropower in dwellings
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49316—Impeller making
    • Y10T29/4932—Turbomachine making

Definitions

  • the present invention relates to a Benkatina Turbine and how to construct it.
  • a Benkatina Turbine is an in-pipe turbine fitting inside a main and side chamber. It was previously described in terms of its overall shape in PCT application IL07/000770. This patent application describes novel features of that turbine type and their construction. BRIEF DESCRIPTION OF THE DRAWINGS
  • Figure 1 is a diagram of Benkatina nozzles and blade arrangements.
  • Figure 2 is a diagram of how a peripheral nozzle would work.
  • Figure 3 is a photo of actual nozzles.
  • Figure 4 is a diagram of a magnetic coupling used with a Benkatina turbine.
  • Figure 8 is a diagram of an open top turbine.
  • Figure 9 is a diagram of construction of the casing. DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • the present invention relates to ways of building a Benkatina turbine.
  • Figure 1 illustrates Benkatina nozzles and blade arrangements.
  • the use of different nozzles and flange types with a Benkatina turbine is hereby introduced, as well as their use in combination with matching blades.
  • blades shaped in a cup or indentation to match the location and size of the nozzle output are used.
  • a banana shaped nozzle (1 or 2) may match a banana-shaped indentation in the periphery of the blades (3).
  • a peripheral circular nozzle (4) may be used, and that can also match a blade such as (3).
  • a central nozzle hole (5) can match blade shapes (6) and (7).
  • Blade (7) is distinguished by having part of the blade periphery cut off so that it can drain out the water more easily after it has hit the cup.
  • Benkatina turbine for various embodiments are introduced as follows.
  • the use of a stuffing box on at least one side for a mechanical seal is introduced.
  • the shaft of the turbine (36) may be elongated on both sides (37) so that a generator can be placed on both sides, as in Figure 6. This enables fine-tuning of the power output with easily available generator components.
  • Figure 7 is a diagram of a crown (38) and blades (39).
  • a central ridge separates the stream of water into two for better balance. This technique is well known for use in other hydroelectric turbines, but is here introduced in combination with a Benkatina turbine. Cutting off the ends of the blades (40) allows better drainage of water, and is hereby introduced in combination with a Benkatina turbine.
  • Figure 8 is a diagram of an open top turbine.
  • the upper casing (41) is cut open to reveal the blades (42), thereby creating an open system and preventing buildup of water in the cups. This is particularly useful for a canal or dam system where the pipe is horizontal.
  • Figure 9 is a diagram of construction of the casing.
  • the Benkatina turbine's main and side chambers may be manufactured by producing two pieces, in different embodiments through casting or molds. One includes the pipe and extends above it to form a surface peripheral to the pipe (43), and the second (44) forms the rest of the casing of the side chamber. The two parts may then be bolted together along a lip present on each (45).
  • the manufacturing process of making two halves and connecting them is hereby disclosed.
  • the method and device of sealing the turbine with bolts or screws from the outside is hereby disclosed.
  • the Benkatina pipes and blades may be made of only plastic, such as polystyrene, in the ideal embodiment for applications in corrosive environments.
  • the present invention successfully addresses the shortcomings of the presently known configurations by providing a group of solutions to building an in-pipe turbine.
  • the nozzle piece is molded into the pipe.
  • the nozzle piece is inserted into the pipe.
  • the system further comprises: c. a blade set of the turbine whose location of concavity substantially matches the location of the entry of water from the nozzle piece into the turbine.
  • at least one hole is in the lower half of the nozzle piece. According to another embodiment, it is used in situations of flow where the pipe is filled less than halfway at least 50% of the time.
  • a turbine operating in a fluid comprising: a. a set of magnetic couplings connecting the turbine and generator shafts.
  • an in-pipe turbine comprising: a. a turbine, b. a shaft of said turbine, c. generator shafts linked to both sides of the turbine shafts.
  • magnetic couplings are used on both sides to provide the link (said link being either physically attached or magnetic).
  • an in-pipe turbine comprising: a. a crown, b. at least one cup attached to said crown.
  • a method of manufacturing a Benkatina turbine comprising: a. providing a first piece that comprises the pipe and a portion of the side chamber, b. providing a second piece that comprises a portion of the side chamber, c. connecting the two pieces. It is now disclosed for the first time a method of manufacturing a Benkatina turbine, comprising: a. providing the turbine and entry pipe, b. providing a nozzle for the interior of the entry pipe.
  • a blade for a Benkatina turbine comprising: a. a radially-oriented central ridge in the concave area of the blade.
  • a blade system for a turbine in a liquid comprising: a. metal blades coated with fiberglass.
  • a blade for a Benkatina turbine comprising: a. a cup whose periphery is cut off in a plane substantially perpendicular to the axis of the cup.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Turbines (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

Devices and methods of manufacturing important parts of a Benkatina Turbine are described.

Description

CONSTRUCTION OF AN IN-PIPE TURBINE
This patent application claims the benefit of U. S. Provisional Patent Application No. 60/991,789, Wind, Wave, and Water Renewable Energy Elaborations, filed December 3, 2007; 61/017,816, Hydro Turbines, Portable Wind, Waves, and Magnets, filed December 31, 2007; 61/037,011, Provisional 3-08 Slanted roof wind turbine Sewage turbine system and buoys, filed March 17, 2008; 61/058,235, Provisional 6-08: Improvements to renewable energy devices, June 3, 2008.
FIELD AND BACKGROUND OF THE INVENTION
The present invention relates to a Benkatina Turbine and how to construct it. A Benkatina Turbine is an in-pipe turbine fitting inside a main and side chamber. It was previously described in terms of its overall shape in PCT application IL07/000770. This patent application describes novel features of that turbine type and their construction. BRIEF DESCRIPTION OF THE DRAWINGS
The invention is herein described, by way of example only, with reference to the accompanying drawings, wherein:
Figure 1 is a diagram of Benkatina nozzles and blade arrangements.
Figure 2 is a diagram of how a peripheral nozzle would work.
Figure 3 is a photo of actual nozzles.
Figure 4 is a diagram of a magnetic coupling used with a Benkatina turbine.
Figure 5 is a diagram of a Benkatina turbine with a built-in coil.
Figure 6 is a diagram of a turbine with two sides. Figure 7 is a diagram of a crown and blades.
Figure 8 is a diagram of an open top turbine.
Figure 9 is a diagram of construction of the casing. DESCRIPTION OF THE PREFERRED EMBODIMENTS
The present invention relates to ways of building a Benkatina turbine.
The principles and operation of a Benkatina turbine according to the present invention may be better understood with reference to the drawings and the accompanying description.
Referring now to the drawings, Figure 1 illustrates Benkatina nozzles and blade arrangements. The use of different nozzles and flange types with a Benkatina turbine is hereby introduced, as well as their use in combination with matching blades. In the ideal embodiment, blades shaped in a cup or indentation to match the location and size of the nozzle output are used. For example, a banana shaped nozzle (1 or 2) may match a banana-shaped indentation in the periphery of the blades (3). In another embodiment, a peripheral circular nozzle (4) may be used, and that can also match a blade such as (3). The method of using such a shape could be in a situation where the flow didn't fill the pipe in order to enable the flow velocity to hit the blades more effectively for that flow pattern. A central nozzle hole (5) can match blade shapes (6) and (7). Blade (7) is distinguished by having part of the blade periphery cut off so that it can drain out the water more easily after it has hit the cup. In one embodiment, the inlet pipe's nozzle is located in the center of the inlet (for less turbulent flow), but the nozzle's stream (8) enters the turbine chamber at the periphery of the Benkatina blades; this is referred to in the picture as an off-center Benkatina turbine, because the turbine is centered so that its midline is farther removed from the pipe and the surrounding case is more than 180 degrees. One way of shaping the nozzle piece (13) is to shape the portion facing the interior of the turbine (12) away from the pipe (10) so that the nozzle surface (11) has a shape that matches the circular pattern of the walls of the main chamber of the turbine turbine. Flange types for the nozzle may comprise at least one hole at the end of the pipe (14) or at least one hole with an area that narrows down into the hole within the entry pipe (15).
Figure 2 is a diagram of how a peripheral nozzle would work. The pipe (16) is connected to the turbine (17). The nozzle (18) is peripheral, like (1, 2, 4) in Figure 1. This configuration would be useful in a situation of higher torque.
Figure 3 is a photo of actual nozzles. (19) illustrates the tapered surface of one embodiment of a nozzle. Nozzle (20) illustrates a flat nozzle surface. The nozzle base plate (21) illustrates one of the novelties of the current system. The base plate can fit easily at the inlet of the Benkatina turbine, between the turbine casing and the rest of the piping. It is easy to insert and replace. This is a unique method of inserting a nozzle piece into a pipe, said piece having walls that approximate the internal walls of the pipe. Alternately, the nozzle can be built into the input pipe. The article of manufacture of such an insert is hereby disclosed. The device and method of manufacture of making a separate nozzle to fit inside a pipe are hereby disclosed.
Figure 4 is a diagram of a magnetic coupling used with a Benkatina turbine. Such a magnetic coupling can be used with impeller turbines as well, particularly those underwater, and other kinds of turbines. The main chamber of the pipe (22) is connected to the side chamber (23) of the Benkatina turbine. The shaft's central axis (24), in the embodiment shown here, is connected to bearings (25) and also to a magnetic coupling (27). The use of magnetic couplings on both sides is herewith introduced. The second half of the coupling (27) is on the other side of a completely sealed casing for the side chamber — or, for other types of turbines as well. The other side of the coupling is connected to the generator shaft (28) and that to the generator (29). This enables a completely closed system in the area of the turbine, so there can be no leakage or contamination from the outside in or the inside out.
Figure 5 is a diagram of a Benkatina turbine with a built-in coil. The incoming pipe (30) enters the main chamber where the turbine blades are located (31). The shaft (32) has magnets on at least one end (33), A housing (34) covers these magnets and keeps the system closed. Coils (35) are located nearby outside the pipe.
Other means of adjusting the Benkatina turbine for various embodiments are introduced as follows. The use of a stuffing box on at least one side for a mechanical seal is introduced. The shaft of the turbine (36) may be elongated on both sides (37) so that a generator can be placed on both sides, as in Figure 6. This enables fine-tuning of the power output with easily available generator components.
Figure 7 is a diagram of a crown (38) and blades (39). In one embodiment, a central ridge separates the stream of water into two for better balance. This technique is well known for use in other hydroelectric turbines, but is here introduced in combination with a Benkatina turbine. Cutting off the ends of the blades (40) allows better drainage of water, and is hereby introduced in combination with a Benkatina turbine.
Figure 8 is a diagram of an open top turbine. The upper casing (41) is cut open to reveal the blades (42), thereby creating an open system and preventing buildup of water in the cups. This is particularly useful for a canal or dam system where the pipe is horizontal.
Figure 9 is a diagram of construction of the casing. The Benkatina turbine's main and side chambers may be manufactured by producing two pieces, in different embodiments through casting or molds. One includes the pipe and extends above it to form a surface peripheral to the pipe (43), and the second (44) forms the rest of the casing of the side chamber. The two parts may then be bolted together along a lip present on each (45). The manufacturing process of making two halves and connecting them is hereby disclosed. The method and device of sealing the turbine with bolts or screws from the outside is hereby disclosed.
The Benkatina pipes and blades may be made of only plastic, such as polystyrene, in the ideal embodiment for applications in corrosive environments.
The blades of a Benkatina Turbine or other turbines can be made of metal covered with fiberglass. This enables them to have the strength of steel or other metal with the benefits of fiberglass on the outside.
While the invention has been described with respect to a limited number of embodiments, it will be appreciated that many variations, modifications and other applications of the invention may be made. SUMMARY QF THE INVENTION
The present invention successfully addresses the shortcomings of the presently known configurations by providing a group of solutions to building an in-pipe turbine.
It is now disclosed for the first time a hydroelectric turbine, comprising: a. a Benkatina turbine, b. a nozzle piece.
According to another embodiment, the nozzle piece is molded into the pipe. According to another embodiment, the nozzle piece is inserted into the pipe. According to another embodiment, the system further comprises: c. a blade set of the turbine whose location of concavity substantially matches the location of the entry of water from the nozzle piece into the turbine. According to another embodiment of matching blade sets and nozzle pieces, at least one hole is in the lower half of the nozzle piece. According to another embodiment, it is used in situations of flow where the pipe is filled less than halfway at least 50% of the time.
It is now disclosed for the first time a blade for a Benkatina turbine, wherein the periphery of the cup is open.
It is now disclosed for the first time a Benkatina turbine, wherein the circular casing surrounding the turbine periphery extends for more than 180 degrees before it reaches the side of the main chamber piping.
It is now disclosed for the first time a nozzle piece for a Benkatina turbine, wherein the part of the nozzle piece facing the turbine is contoured substantially continuously with the inner wall of the turbine chamber.
It is now disclosed for the first time a nozzle piece for an in-pipe turbine, wherein the hollow section leading into the nozzle is flanged.
It is now disclosed for the first time a turbine operating in a fluid, comprising: a. a set of magnetic couplings connecting the turbine and generator shafts.
According to another embodiment, the turbine is an in-pipe turbine.
It is now disclosed for the first time an in-pipe turbine, wherein the pipe is completely sealed in the vicinity of the turbine, vicinity defined as within one turbine diameter of the turbine edge.
It is now disclosed for the first time an in-pipe turbine, comprising: a. a turbine, b. a shaft of said turbine, c. generator shafts linked to both sides of the turbine shafts. According to another embodiment, magnetic couplings are used on both sides to provide the link (said link being either physically attached or magnetic).
It is now disclosed for the first time an in-pipe turbine, comprising: a. a turbine, b. a shaft of said turbine, c. at least one mechanical seal connected to said shaft.
It is now disclosed for the first time an in-pipe turbine, comprising: a. a shaft, b. a magnet set attached to the end of said shaft, c. a coil external to the pipe in functional congruity to said magnet set.
It is now disclosed for the first time an in-pipe turbine, comprising: a. a crown, b. at least one cup attached to said crown.
It is now disclosed for the first time a method of manufacturing a Benkatina turbine using casting.
It is now disclosed for the first time a Benkatina turbine, wherein a portion of the top casing is open.
It is now disclosed for the first time a method of manufacturing a Benkatina turbine, comprising: a. providing a first piece that comprises the pipe and a portion of the side chamber, b. providing a second piece that comprises a portion of the side chamber, c. connecting the two pieces. It is now disclosed for the first time a method of manufacturing a Benkatina turbine, comprising: a. providing the turbine and entry pipe, b. providing a nozzle for the interior of the entry pipe.
It is now disclosed for the first time a nozzle piece for insertion into a Benkatina turbine, comprising; a. a base plate attached to the end distal to the turbine.
It is now disclosed for the first time a blade for a Benkatina turbine, comprising: a. a radially-oriented central ridge in the concave area of the blade.
It is now disclosed for the first time a blade system for a turbine in a liquid, comprising: a. metal blades coated with fiberglass.
It is now disclosed for the first time a blade for a Benkatina turbine, comprising: a. a cup whose periphery is cut off in a plane substantially perpendicular to the axis of the cup.

Claims

WHAT IS CLAIMED IS
1. A hydroelectric turbine, comprising: a. a Benkatina turbine, b. a nozzle piece.
2. The turbine of claim 1, wherein the nozzle piece is molded into the pipe.
3. The turbine of claim 1, wherein the nozzle piece is inserted into the pipe.
4. The system of claim. 1, further comprising; c. a blade set of the turbine whose location of concavity substantially matches the location of the entry of water from the nozzle piece into the turbine.
5. The system of claim 4, wherein at least one hole is in the lower half of the nozzle piece.
6. The system of claim 5, wherein it is used in situations of flow where the pipe is filled less than half way at least 50% of the time.
7. A blade for a Benkatina turbine, wherein the periphery of the cup is open.
8. A Benkatina turbine, wherein the circular casing surrounding the turbine periphery extends for more than 180 degrees.
9. A nozzle piece for a Benkatina turbine, wherein the part of the nozzle piece facing the turbine is contoured substantially continuously with the inner wall of the turbine chamber.
10. A nozzle piece for an in-pipe turbine, wherein the hollow section leading into the nozzle is flanged.
11. A turbine operating in a fluid, comprising: a. a set of magnetic couplings connecting the turbine and generator shafts.
12. The turbine of claim 11, wherein the turbine is an in-pipe turbine.
13. An in-pipe turbine, wherein the pipe is completely sealed in the vicinity of the turbine, vicinity defined as within one turbine diameter of the turbine edge.
14. An in-pipe turbine, comprising: a. a turbine, b. a shaft of said turbine, c. generator shafts linked to both sides of the turbine shafts.
15. The turbine of claim 14, wherein magnetic couplings are used on both sides.
16. An in-pipe turbine, comprising: a. a turbine, b. a shaft of said turbine, c. at least one mechanical seal connected to said shaft.
17. An in-pipe turbine, comprising: a. a shaft, b. a magnet set attached to the end of said shaft, c. a coil external to the pipe in functional congruity to said magnet set.
18. An in-pipe turbine, comprising: a. a crown, b. at least one cup attached to said crown.
19. A method of manufacturing a Benkatina turbine using casting.
20. A Benkatina turbine, wherein a portion of the top casing is open.
21. A method of manufacturing a Benkatina turbine, comprising: a. providing a first piece that comprises the pipe and a portion of the side chamber, b. providing a second piece that comprises a portion of the side chamber, c. connecting the two pieces.
22. A method of manufacturing a Benkatina turbine, comprising: a. providing the turbine and entry pipe, b. providing a nozzle for the interior of the entry pipe.
23. A nozzle piece for insertion into a Benkatina turbine, comprising: a. a base plate attached to the end distal to the turbine.
24. A blade for a Benkatina turbine, comprising: a. a radially-oriented central ridge in the concave area of the blade.
25. A blade system for a turbine in a liquid, comprising: a. metal blades coated with fiberglass.
26. A blade for a Benkatina turbine, comprising; a. a cup whose periphery is cut off in a plane substantially perpendicular to the axis of the cup.
PCT/IB2008/055016 2007-12-03 2008-11-30 Construction of an in-pipe turbine Ceased WO2009072048A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CA2707476A CA2707476A1 (en) 2007-12-03 2008-11-30 Construction of an in-pipe turbine
US12/745,549 US20100303621A1 (en) 2007-12-03 2008-11-30 Construction of an in-pipe turbine
EP08857666A EP2227631A2 (en) 2007-12-03 2008-11-30 Construction of an in-pipe turbine
JP2010535501A JP2011505517A (en) 2007-12-03 2008-11-30 Pipe turbine construction
CN2008801196962A CN101932827A (en) 2007-12-03 2008-11-30 Structure of in-pipe turbine

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US99178907P 2007-12-03 2007-12-03
US60/991,789 2007-12-03
US1781607P 2007-12-31 2007-12-31
US61/017,816 2008-01-01
US3701108P 2008-03-17 2008-03-17
US61/037,011 2008-03-17
US5823508P 2008-06-03 2008-06-03
US61/058,235 2008-06-03

Publications (2)

Publication Number Publication Date
WO2009072048A2 true WO2009072048A2 (en) 2009-06-11
WO2009072048A3 WO2009072048A3 (en) 2009-11-05

Family

ID=40718286

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/055016 Ceased WO2009072048A2 (en) 2007-12-03 2008-11-30 Construction of an in-pipe turbine

Country Status (7)

Country Link
US (1) US20100303621A1 (en)
EP (1) EP2227631A2 (en)
JP (1) JP2011505517A (en)
KR (1) KR20100096226A (en)
CN (1) CN101932827A (en)
CA (1) CA2707476A1 (en)
WO (1) WO2009072048A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112302848A (en) * 2020-11-17 2021-02-02 浙江海洋大学 a water turbine

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140328666A1 (en) * 2008-06-24 2014-11-06 Diana Michaels Christopher Bezentropic Bladeless Turbine
JP2012528274A (en) * 2009-05-26 2012-11-12 レビアサン エナジー ウインド ロータス エルティディー． In-pipe turbine for hydroelectric power generation
ES2443999B1 (en) * 2012-08-21 2014-12-23 Coremi 2003, S.L. Turbine for a wastewater collection facility and its rotor cleaning procedure
FR2997460B1 (en) * 2012-10-29 2014-11-28 Carpyz TURBINE COMPRISING AT LEAST 2 3D HOLLOW WHEELS EMBOITEES ONE IN ANOTHER

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4246753A (en) * 1979-10-24 1981-01-27 Benjamin Redmond Energy salvaging system
US5007241A (en) * 1989-09-12 1991-04-16 Saito Yutaka Kinetic energy recovery device of liquid and gas
US6885114B2 (en) * 1999-10-05 2005-04-26 Access Business Group International, Llc Miniature hydro-power generation system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112302848A (en) * 2020-11-17 2021-02-02 浙江海洋大学 a water turbine

Also Published As

Publication number Publication date
CA2707476A1 (en) 2009-06-11
EP2227631A2 (en) 2010-09-15
CN101932827A (en) 2010-12-29
WO2009072048A3 (en) 2009-11-05
JP2011505517A (en) 2011-02-24
US20100303621A1 (en) 2010-12-02
KR20100096226A (en) 2010-09-01

Similar Documents

Publication Publication Date Title
US20100303621A1 (en) Construction of an in-pipe turbine
CN104153998B (en) Straight tube shaft type water pump
WO2015196927A1 (en) Hydro-generator device
CN103397974B (en) Magnetic levitation hydro-generator
CN103907563B (en) water surge machine
CN102177642A (en) hydroelectric motor
CN101427055A (en) Blade wheel or guide wheel for a hydrodynamic torque converter, method for producing a guide wheel of said type, and hydrodynamic torque converter having a guide wheel of said type
CN103790761B (en) A kind of bidirectional guide blade percussion formula turbine wave power generation system and method
CN210660599U (en) Centripetal spiral fluid pump
WO2026082199A1 (en) Micro hydroelectric generator
CN211790987U (en) Rotor core and rotor with same
CN202140231U (en) Pipeline vacuum hydrogenerator
CN207634655U (en) A kind of magnetic fluid seal driving device for multi-chamber PECVD device
CN201225223Y (en) Hydroelectric generator
JP4072699B1 (en) Oscillating vane turbine
CN213743805U (en) A siphon direct-drive tubular turbine
CN102913366A (en) Inline closed type hydroelectric generation system
CN203146198U (en) Water turbine for ocean current power generation
CN203383973U (en) Magnetic suspension hydraulic generator
CN201225224Y (en) Turbine type hydroelectric generator
CN203518803U (en) Low-frequency-band variable-frequency vortex whistle type sound wave ash blower
CN204783849U (en) A new space diffuser device for vertical installation long axis pump
CN107645222A (en) Internal water cooling magneto
CN113001119B (en) Method for manufacturing centrifugal pump
CN116025429B (en) Residual pressure power generation equipment of saponification reaction tower in epichlorohydrin production

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200880119696.2

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08857666

Country of ref document: EP

Kind code of ref document: A2

WWE Wipo information: entry into national phase

Ref document number: 12745549

Country of ref document: US

Ref document number: 2707476

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 2010535501

Country of ref document: JP

Ref document number: 3255/CHENP/2010

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: 2008857666

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 20107014807

Country of ref document: KR

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 2010127345

Country of ref document: RU