[go: up one dir, main page]

WO1992005341A1 - Rotor - Google Patents

Rotor Download PDF

Info

Publication number
WO1992005341A1
WO1992005341A1 PCT/EP1991/001761 EP9101761W WO9205341A1 WO 1992005341 A1 WO1992005341 A1 WO 1992005341A1 EP 9101761 W EP9101761 W EP 9101761W WO 9205341 A1 WO9205341 A1 WO 9205341A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
rotor blade
rotor according
edge
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/EP1991/001761
Other languages
German (de)
English (en)
Inventor
Josef Moser
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 CA002068539A priority Critical patent/CA2068539A1/fr
Publication of WO1992005341A1 publication Critical patent/WO1992005341A1/fr
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
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/0608—Rotors characterised by their aerodynamic shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C21/00—Influencing air flow over aircraft surfaces by affecting boundary layer flow
    • B64C21/10—Influencing air flow over aircraft surfaces by affecting boundary layer flow using other surface properties, e.g. roughness
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/141—Shape, i.e. outer, aerodynamic form
    • F01D5/145—Means for influencing boundary layers or secondary circulations
    • 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
    • F03B3/12—Blades; Blade-carrying rotors
    • F03B3/121—Blades, their form or construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2261—Rotors specially for centrifugal pumps with special measures
    • F04D29/2272—Rotors specially for centrifugal pumps with special measures for influencing flow or boundary layer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/30—Vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • F04D29/384—Blades characterised by form
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
    • F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
    • 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
    • F05B2210/00—Working fluid
    • F05B2210/16—Air or water being indistinctly used as working fluid, i.e. the machine can work equally with air or water without any modification
    • 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
    • F05B2220/40—Application in turbochargers
    • 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
    • F05B2240/20—Rotors
    • F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05B2240/301—Cross-section characteristics
    • 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
    • F05B2240/20—Rotors
    • F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05B2240/32—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor with roughened surface
    • 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
    • F05B2250/60—Structure; Surface texture
    • F05B2250/61—Structure; Surface texture corrugated
    • 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
    • F05B2250/60—Structure; Surface texture
    • F05B2250/61—Structure; Surface texture corrugated
    • F05B2250/611—Structure; Surface texture corrugated undulated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/40—Application in turbochargers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/10—Stators
    • F05D2240/12—Fluid guiding means, e.g. vanes
    • F05D2240/127—Vortex generators, turbulators, or the like, for mixing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/20—Rotors
    • F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05D2240/301—Cross-sectional characteristics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/20—Rotors
    • F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05D2240/31—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor with roughened surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/60—Structure; Surface texture
    • F05D2250/61—Structure; Surface texture corrugated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/60—Structure; Surface texture
    • F05D2250/61—Structure; Surface texture corrugated
    • F05D2250/611—Structure; Surface texture corrugated undulated
    • 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
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/10—Drag reduction

Definitions

  • the invention relates to a rotor for absorbing energy from a flowing medium or for delivering energy to a flowing medium consisting of a hub and at least one rotor blade.
  • Such rotors are widely used in technology.
  • wind turbines are used to absorb energy from a flowing medium, converting the incoming wind energy into rotational energy and then using a generator into electrical current.
  • the energy of the flowing water is converted into turning energy by Kaplan turbines, for example.
  • gas turbines with a large number of blades are also known, which convert the energy of a relaxing gas flow into rotational energy.
  • rotors are also used to deliver energy to a flowing medium.
  • the rotors form so-called stirring elements. In all of the above areas, attempts have long been made to improve the effectiveness of the rotor by shaping it accordingly.
  • the object of the present invention is to develop a generic rotor in such a way that the efficiency of the rotor is further improved both in terms of the energy consumption from a flowing medium and when it is delivered to a flowing medium.
  • the at least one rotor blade has at least one aero- or hydrodynamic wave, which forms two edges with the flat part of the rotor blade in such a way that the edge lying in the radial inflow direction is inclined by an angle ⁇ such that it is perpendicular to the rotor blade edges it is directed outwards starting from the rotor blade edge leading in the direction of rotation, while the other edge is perpendicular to the rotor blade edges.
  • the increase in the efficiency of the rotor according to the invention can be explained physically as follows.
  • the energy-generating systems include, for example, the wind turbines, while the energy-emitting systems include, for example, the propeller and the air propeller.
  • the air that flows radially outward via the rotor blade or the water that flows outward which flows outwards due to the centrifugal force acting on the fluid elements, will encounter the obstacles formed by the waves.
  • the present invention particularly advantageously leads to the fact that cavitation can be greatly reduced in the case of rotors rotating in liquid media and can even be completely prevented under certain circumstances. In the case of rotors rotating in gaseous media, the frequently disturbing noise development can also be considerably reduced.
  • the wing edge is torn off at much higher rotational speeds compared to rotors that do not contain the aero- or hydrodynamic waves according to the invention.
  • both the aero and hydrodynamic waves and the rest of the rotor blade have additional corrugations.
  • These corrugations can be shaped depending on the use of the rotor. So while they can be relatively fine, for example, in a gas flow, they are in a water flow correspondingly coarse. Depending on the flow conditions, however, it can also be advantageous to provide coarser corrugations in a gas flow.
  • a further advantageous embodiment of the invention consists in that a part of the rotor blade lying radially on the inside remains flat, while the outside of the rotor blade has the aero- or hydrodynamic waves according to the invention.
  • Figure 1 is a schematic oblique view of part of a rotor blade according to the invention.
  • FIG. 2 a section along the line A-A in FIG. 1,
  • Figure 3 shows a perspective part of a rotor arm according to the invention in an oblique view
  • FIG. 4 a side view of a rotor arm according to the invention
  • FIG. 5 a first embodiment of a wind energy converter using the rotor according to the invention
  • FIG. 6 a second embodiment of a wind energy converter using a rotor according to the invention
  • Figure 7 is a perspective view of part of a rotor according to the invention, which is designed as a helicopter rotor;
  • FIG. 8 a perspective view of a ship propeller in which the rotor according to the invention is implemented
  • FIG. 9 a perspective view of a Kaplan turbine in which the rotor according to the invention is implemented
  • FIG. 10 a detailed view of the representation according to FIG. 9,
  • FIG. 11b a fan impeller in front and side view, in which the rotor according to the invention is implemented
  • Figure 12 a compressor wheel of a turbocharger in which the rotor according to the invention has been implemented
  • FIG. 13 the final stage blades of a condensation turbine which embody the present invention.
  • the basic improved mode of operation of the rotor according to the invention can be explained with reference to FIG.
  • the rotor blade 10, which is only partially shown here, is essentially flat, with a shaft 12 protruding from the plane to form two edges 14 and 16. This wave is also called aerog. hydrodynamic shaft 12 referred to clear misunderstandings.
  • the rotor blade partially shown here rotates in the tangential direction, which is indicated by the arrow B here.
  • the flow velocity of the fluid flowing around the rotor blade 10 can be shifted by 3 flow velocity components in the radial, tangential and axial direction.
  • the flow in the radial direction runs in the direction of arrow A from the inside of the rotor blade to the outer end of the rotor blade, not shown here.
  • the tangential flow direction is again indicated by the arrow B, while the axial flow direction is perpendicular to the plane of the page.
  • the edge 14 of the rotor blade 10 is inclined by the angle ⁇ relative to the perpendicular 20 to the rotor blade edges 22, 24 by the angle.
  • the edge 16, which the aero- or hydrodynamic wave forms with the flat rotor blade is aligned perpendicular to the rotor blade edges 22 and 24.
  • the fluid flowing outward in the radial direction in accordance with arrow A will, as soon as it strikes the obstacle formed by shaft 12, be partially deflected in arrow direction a. This gives the rotor an additional driving force component.
  • FIG. 2 shows a cross section through a rotor blade 10.
  • the aerodynamic or hydrodynamic waves 12 are placed directly next to one another.
  • the inner region of the rotor blade is made smooth, while in the outer region of the rotor blade, the shafts 12 directly adjoin one another.
  • FIGS. 5 and 6 show two horizontal wind rotors, in which the rotor according to the invention with rotor blades 10 is used.
  • the hub of the rotor is designated 11.
  • the horizontal wind rotor 30 has two symmetrically arranged rotor blades 10.
  • the horizontal wind rotor 35 according to FIG. 6 is asymmetrical, its hub 11 being arranged in the center of gravity of the asymmetrical rotor blade 10.
  • FIG. 7 shows a detail of a helicopter rotor 40, more precisely a helicopter rotor blade 10, in which the inner radius 13 is designed as a conventional smooth profile, while the outer radius region is designed in wave form with aerodynamic waves 12 in accordance with the present invention.
  • FIG. 8 shows a propeller with 4 rotor blades, which are designed according to the invention.
  • the propellers can also have any other number of blades.
  • These blades could also be flat in their inner radius area, which is not shown here.
  • the outer contour of the blade shape of the ship's propeller 50 and also of the other rotors exemplified here are not changed again.
  • FIG. 9 shows a Kaplan turbine 60 which, according to the invention, has shafts 12 in its rotor blades 10.
  • the hub is designated 11.
  • FIG. 10 shows a detail of one of the rotor blades 10 of the Kaplan turbine 60.
  • FIGS. 11a and 11b show a fan 70 which has 6 rotor blades 10 with the shafts 12 according to the invention.
  • the fan 70 has a stabilizer ring 72.
  • FIG. 12 shows a compressor wheel 80 of a turbocharger, with rotor blades 10 which have shafts 12 according to the invention. In addition to the shafts 12, however, they also have corrugations 26, which are to be indicated by the fine lines in FIG.
  • output stage blades of a condensation turbine are shown as rotor blades, which are arranged on a hub 11.
  • fine corrugations 26 are also provided here.
  • rotors for gas turbine blades, other steam turbines, but also rotors for engine blades for nozzles of jet jets etc. can be designed to increase efficiency.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Camera Bodies And Camera Details Or Accessories (AREA)
  • Studio Devices (AREA)
  • Hydraulic Turbines (AREA)
  • Wind Motors (AREA)

Abstract

Un rotor servant à capter l'énergie d'un milieu en écoulement ou transmettre de l'énergie à un milieu en écoulement comprend un moyeu et au moins une pale (10) de rotor. Afin de développer un tel rotor de telle sorte que son efficacité, aussi bien pour capter l'énergie d'un milieu en écoulement que pour transmettre de l'énergie à un milieu en écoulement, soit améliorée, la pale (10) du rotor comprend au moins une ondulation aérodynamique ou hydrodynamique qui forme avec la partie plate de la pale deux bords (14, 16). Le bord (14) situé dans le sens afflux radial est incliné à un angle alpha par rapport à la normale aux bords (22, 24) de la pale du rotor, de sorte qu'il est orienté vers l'extérieur par rapport au bord antérieur de la pale du rotor, dans le sens de rotation de celui-ci, alors que l'autre bord (16) est perpendiculaire aux bords (22, 24) de la pale du rotor.
PCT/EP1991/001761 1990-09-14 1991-09-16 Rotor Ceased WO1992005341A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002068539A CA2068539A1 (fr) 1990-09-14 1991-09-16 Rotor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEG9013099.5U 1990-09-14
DE9013099U DE9013099U1 (de) 1990-09-14 1990-09-14 Rotor

Publications (1)

Publication Number Publication Date
WO1992005341A1 true WO1992005341A1 (fr) 1992-04-02

Family

ID=6857513

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1991/001761 Ceased WO1992005341A1 (fr) 1990-09-14 1991-09-16 Rotor

Country Status (5)

Country Link
EP (1) EP0500875A1 (fr)
JP (1) JPH05501902A (fr)
CA (1) CA2068539A1 (fr)
DE (1) DE9013099U1 (fr)
WO (1) WO1992005341A1 (fr)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0629779A1 (fr) * 1993-06-15 1994-12-21 KSB Aktiengesellschaft Structure des surfaces pour pièces constitutives de machines rotatives à fluide
FR2790512A1 (fr) * 1999-03-02 2000-09-08 Jean Claude Delplanque Turbomachine compacte a courbures d'aubes mobiles alternees (en vague) et applications (aeronautiques, terrestres, marines)
WO2003076797A1 (fr) * 2002-03-09 2003-09-18 Voith Siemens Hydro Power Generation Gmbh & Co.Kg Dispositif de stabilisation d'ecoulement pour machines a ecoulement hydraulique
WO2004067956A1 (fr) * 2003-01-30 2004-08-12 Josef Moser Pale de rotor conçue pour une installation a energie eolienne
WO2007100281A1 (fr) * 2006-03-03 2007-09-07 Ragnar Winberg Procédé pour réaliser une hélice avec stries
DE102006043462A1 (de) * 2006-09-15 2008-03-27 Deutsches Zentrum für Luft- und Raumfahrt e.V. Aerodynamisches Bauteil mit einer gewellten Hinterkante
WO2009054815A1 (fr) * 2007-10-24 2009-04-30 Hidria Rotomatika D.O.O. Pale de soufflante axiale à surfaces ondulées de pression et de succion
CN101619708A (zh) * 2008-06-30 2010-01-06 通用电气公司 具有多个曲率的风力涡轮机叶片
WO2010141720A2 (fr) 2009-06-03 2010-12-09 Flodesign Wind Turbine Corp. Pales d'éoliennes à lobes de mélange
WO2013130163A1 (fr) * 2011-12-22 2013-09-06 General Electric Company Profils aérodynamiques et procédé de fabrication correspondant
US8721280B2 (en) 2008-01-07 2014-05-13 Daikin Industries, Ltd. Propeller fan
WO2014109670A3 (fr) * 2013-11-19 2014-10-23 Trubaev Nikolay Alekseevich Procédé et appareil permettant d'obtenir un écoulement laminaire de gaz ou de liquide à proximité d'arêtes
US8899938B2 (en) 2008-09-22 2014-12-02 Walter Enthammer Blade for a turbomachine
EP2921697A1 (fr) * 2014-03-21 2015-09-23 Siemens Aktiengesellschaft Modifications de bord de fuite pour pale d'éolienne
DE102015216579A1 (de) * 2015-08-31 2017-03-02 Ziehl-Abegg Se Lüfterrad, Lüfter und System mit mindestens einem Lüfter
EP3217018A4 (fr) * 2014-11-04 2018-05-30 Mitsubishi Electric Corporation Ventilateur hélicoïde, dispositif de ventilateur hélicoïde, et unité extérieure pour dispositif de conditionnement d'air
US10113431B2 (en) 2013-01-25 2018-10-30 Rolls-Royce Plc Fluidfoil
US10605087B2 (en) * 2017-12-14 2020-03-31 United Technologies Corporation CMC component with flowpath surface ribs

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4206066A1 (de) * 1992-02-27 1993-09-02 Fritz Karl Hausser Boot-schrauben, flugzeug-propellern und hubschrauber-rotor-blaettern zur verringerung des wirbels und widerstandes von wasser und luft
DE4208751A1 (de) * 1992-02-27 1993-11-11 Fritz Karl Hausser Gezahnte Fronten, Kanten oder Ränder als Verfahren zur Verringerung des Widerstandes von gasförmige und flüssige Gegenstände
DE9316009U1 (de) * 1993-10-20 1994-01-13 Moser, Josef, 85435 Erding Oberfläche eines fluidumströmten Körpers
DE19546008A1 (de) * 1995-12-09 1997-06-12 Abb Patent Gmbh Turbinenschaufel, die für den Einsatz im Naßdampfbereich von Vorend- und Endstufen von Turbinen vorgesehen ist
EP0972128B1 (fr) 1997-04-01 2002-11-27 Siemens Aktiengesellschaft Structure superficielle pour la paroi d'un canal d'ecoulement ou d'une aube de turbine
DE19725251C2 (de) * 1997-06-14 2000-07-13 Voith Hydro Gmbh & Co Kg Verfahren zum Herstellen eines Bauteiles für eine hydraulische Strömungsmaschine sowie ein danach hergestelltes Bauteil
PT1805412E (pt) 2004-10-18 2016-06-08 Whalepower Corp Turbina e compressor empregando uma conceção de rotor com bordo de ataque de tubérculos
EP2270312A1 (fr) * 2009-07-01 2011-01-05 PEM-Energy Oy Construction aréo- ou hydrodynamique
DE102009035752A1 (de) * 2009-08-03 2011-02-10 Wu, Wenqi, Hangzhou Hochleistungsfähige und leistungsstarke Schiffsschraube
DE102010023017A1 (de) * 2010-06-08 2011-12-08 Georg Emanuel Koppenwallner Buckelwalgebläse, Verfahren zur örtlichen Verbesserung der Strömung bei Strömungsmaschinen und Fahrzeugen
FR2969230B1 (fr) * 2010-12-15 2014-11-21 Snecma Aube de compresseur a loi d'empilage amelioree
GB2490170B (en) * 2011-04-21 2014-06-11 Anakata Wind Power Resources S A R L A horizontal axis wind turbine with diffuser
CN103032376B (zh) * 2011-10-09 2015-12-09 珠海格力电器股份有限公司 轴流风叶
DE102012202996A1 (de) * 2012-02-28 2013-08-29 Marco Feusi Wirbelstruktur für Windradflügel
DE102012212013B4 (de) * 2012-07-10 2016-05-12 Josef Moser Rotor zur Energiegewinnung aus inkompressiblen strömenden Fluiden
GB2507493B (en) * 2012-10-30 2015-07-15 Solyvent Flakt Ab Air movement fans
KR20140136180A (ko) * 2013-05-20 2014-11-28 삼성전자주식회사 프로펠러 팬 및 이를 구비하는 공기 조화기
US20170159442A1 (en) * 2015-12-02 2017-06-08 United Technologies Corporation Coated and uncoated surface-modified airfoils for a gas turbine engine component and methods for controlling the direction of incident energy reflection from an airfoil
DE102017107465A1 (de) * 2017-04-06 2018-10-11 Teg Tubercle Engineering Group Gmbh Profilkörper zum Erzeugen von dynamischem Auftrieb, Rotorblatt mit dem Profilkörper und Verfahren zum Profilieren des Profilkörpers
CN108087333A (zh) * 2017-12-08 2018-05-29 广东美的制冷设备有限公司 轴流风轮及空调器
CN108087302A (zh) * 2017-12-08 2018-05-29 广东美的制冷设备有限公司 轴流风轮及空调器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2238749A (en) * 1939-01-30 1941-04-15 Clarence B Swift Fan blade
DE833100C (de) * 1950-08-23 1952-03-03 Inconex Handelsgesellschaft M Turboverdichterschaufel mit Grenzschichtzaeunen
FR1164465A (fr) * 1956-01-16 1958-10-09 Vickers Electrical Co Ltd Perfectionnements apportés aux aubes de turbines
US2965180A (en) * 1954-12-20 1960-12-20 American Radiator & Standard Propeller fan wheel

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE93910C (fr) * 1900-01-01
DE145547C (fr) *
DE238658C (fr) *
AT30817B (de) * 1906-10-04 1907-11-25 Pompeo Pieri Antriebsvorrichtung für Schiffe.
GB109150A (en) * 1916-11-07 1917-09-06 Alexander Morrison Bourke Improvements in or relating to Screw Propeller and like Blades.
US1366635A (en) * 1919-03-31 1921-01-25 Edward P Conway Propeller
US1415996A (en) * 1920-09-13 1922-05-16 Turner Jack Water motor
US1550593A (en) * 1923-06-27 1925-08-18 Jacob M Strickler Water wheel
DE493436C (de) * 1924-08-16 1930-03-10 Sven Lindequist Flugzeugtrag- oder -triebfluegel
US1959703A (en) * 1932-01-26 1934-05-22 Birmann Rudolph Blading for centrifugal impellers or turbines
FR1081463A (fr) * 1952-07-19 1954-12-20 Pale super-rigide et super-sonique pour hélicoptère
FR1134736A (fr) * 1955-05-02 1957-04-17 Perfectionnements apportés aux éléments à profil d'aile pour avions
GB791563A (en) * 1955-05-02 1958-03-05 Joseph Vaghi Improvements relating to structures for use as an airplane wing, a propeller blade, a blower or fan blade
US3480238A (en) * 1967-02-27 1969-11-25 Barish Ass Inc Glide wing
CH507836A (fr) * 1970-03-05 1971-05-31 Siebenthal Clement De Hélicoptère
US4108573A (en) * 1977-01-26 1978-08-22 Westinghouse Electric Corp. Vibratory tuning of rotatable blades for elastic fluid machines
DE8032886U1 (de) * 1980-12-11 1981-08-06 Arnold, Klaus-Georg, 8891 Tandern Schaufelblatt fuer verdraengungs-, geblaese-, pumpen- und aehnliche anlagen
US4886421A (en) * 1984-01-09 1989-12-12 Wind Feather, United Science Asc. Wind turbine air foil

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2238749A (en) * 1939-01-30 1941-04-15 Clarence B Swift Fan blade
DE833100C (de) * 1950-08-23 1952-03-03 Inconex Handelsgesellschaft M Turboverdichterschaufel mit Grenzschichtzaeunen
US2965180A (en) * 1954-12-20 1960-12-20 American Radiator & Standard Propeller fan wheel
FR1164465A (fr) * 1956-01-16 1958-10-09 Vickers Electrical Co Ltd Perfectionnements apportés aux aubes de turbines

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 7, no. 159 (M-228)(1304) 13. Juli 1983 & JP,A,58 067 999 ( HITACHI SEISAKUSHO K.K. ) 22. April 1983 siehe Zusammenfassung *

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0629779A1 (fr) * 1993-06-15 1994-12-21 KSB Aktiengesellschaft Structure des surfaces pour pièces constitutives de machines rotatives à fluide
FR2790512A1 (fr) * 1999-03-02 2000-09-08 Jean Claude Delplanque Turbomachine compacte a courbures d'aubes mobiles alternees (en vague) et applications (aeronautiques, terrestres, marines)
WO2003076797A1 (fr) * 2002-03-09 2003-09-18 Voith Siemens Hydro Power Generation Gmbh & Co.Kg Dispositif de stabilisation d'ecoulement pour machines a ecoulement hydraulique
WO2004067956A1 (fr) * 2003-01-30 2004-08-12 Josef Moser Pale de rotor conçue pour une installation a energie eolienne
US7566203B2 (en) 2003-01-30 2009-07-28 Josef Moser Rotor blade
WO2007100281A1 (fr) * 2006-03-03 2007-09-07 Ragnar Winberg Procédé pour réaliser une hélice avec stries
DE102006043462A1 (de) * 2006-09-15 2008-03-27 Deutsches Zentrum für Luft- und Raumfahrt e.V. Aerodynamisches Bauteil mit einer gewellten Hinterkante
WO2009054815A1 (fr) * 2007-10-24 2009-04-30 Hidria Rotomatika D.O.O. Pale de soufflante axiale à surfaces ondulées de pression et de succion
US8721280B2 (en) 2008-01-07 2014-05-13 Daikin Industries, Ltd. Propeller fan
CN101619708A (zh) * 2008-06-30 2010-01-06 通用电气公司 具有多个曲率的风力涡轮机叶片
US8899938B2 (en) 2008-09-22 2014-12-02 Walter Enthammer Blade for a turbomachine
WO2010141720A3 (fr) * 2009-06-03 2011-03-24 Flodesign Wind Turbine Corp. Pales d'éoliennes à lobes de mélange
WO2010141720A2 (fr) 2009-06-03 2010-12-09 Flodesign Wind Turbine Corp. Pales d'éoliennes à lobes de mélange
US9249666B2 (en) 2011-12-22 2016-02-02 General Electric Company Airfoils for wake desensitization and method for fabricating same
WO2013130163A1 (fr) * 2011-12-22 2013-09-06 General Electric Company Profils aérodynamiques et procédé de fabrication correspondant
US10113431B2 (en) 2013-01-25 2018-10-30 Rolls-Royce Plc Fluidfoil
WO2014109670A3 (fr) * 2013-11-19 2014-10-23 Trubaev Nikolay Alekseevich Procédé et appareil permettant d'obtenir un écoulement laminaire de gaz ou de liquide à proximité d'arêtes
EP2921697A1 (fr) * 2014-03-21 2015-09-23 Siemens Aktiengesellschaft Modifications de bord de fuite pour pale d'éolienne
US9670901B2 (en) 2014-03-21 2017-06-06 Siemens Aktiengesellschaft Trailing edge modifications for wind turbine airfoil
CN105041582A (zh) * 2014-03-21 2015-11-11 西门子公司 用于风轮机机翼的机翼后缘修正
EP3217018A4 (fr) * 2014-11-04 2018-05-30 Mitsubishi Electric Corporation Ventilateur hélicoïde, dispositif de ventilateur hélicoïde, et unité extérieure pour dispositif de conditionnement d'air
DE102015216579A1 (de) * 2015-08-31 2017-03-02 Ziehl-Abegg Se Lüfterrad, Lüfter und System mit mindestens einem Lüfter
US11371529B2 (en) 2015-08-31 2022-06-28 Ziehl-Abegg Se Fan wheel, fan, and system having at least one fan
US10605087B2 (en) * 2017-12-14 2020-03-31 United Technologies Corporation CMC component with flowpath surface ribs

Also Published As

Publication number Publication date
JPH05501902A (ja) 1993-04-08
DE9013099U1 (de) 1991-11-07
EP0500875A1 (fr) 1992-09-02
CA2068539A1 (fr) 1992-03-15

Similar Documents

Publication Publication Date Title
WO1992005341A1 (fr) Rotor
DE602004001531T2 (de) Statorschaufel mit Doppelkrümmung
DE3530769C2 (de) Schaufel für ein Gasturbinentriebwerk
DE19828562B4 (de) Triebwerk mit gegenläufig drehenden Rotoren
DE3231283C2 (de) Vorrichtung zur Mischung des Turbinenabgasstroms mit dem Gebläseluftstrom eines Gebläse-Gasturbinentriebwerks
DE69223509T2 (de) Schubringantriebsystem
EP2185277B1 (fr) Dispositif d'agitation pour boues activées
DE69916529T2 (de) Verbesserte Flügelanordnung
DE2740959A1 (de) Schnellflugpropeller-ventilator mit hoher blattzahl
EP2028102A1 (fr) Hélice de shpadi (et variantes) et développante de ces pales
DE102011055515A1 (de) Propelleranordnung, insbesondere für Wasserfahrzeuge
DE3743738A1 (de) Gekruemmte turbinenschaufel
EP2594784A2 (fr) Éolienne verticale et pale de rotor pour celle-ci
EP2242923A2 (fr) Installation de production d'énergie immergée indépendante munie d'une turbine axiale
EP1445193A1 (fr) Turbopropulseur avec deux hélices corotatives et axialement déportées
DE3716326A1 (de) Propeller
DE102008032789A1 (de) Flugzeug mit zumindest zwei in Spannweitenrichtung der Flügel voneinander beabstandeten Antriebsmotoren
WO2021048230A1 (fr) Turboréacteur à double flux présentant au moins un étage de production de couple
EP2824277A1 (fr) Etage de turbine à gaz
EP2223853A1 (fr) Surface à écoulement dynamique dotée d'une turbine entraînée par un écoulement induit à l'aide de la surface d'écoulement
DE3605086C2 (fr)
DE202012013307U1 (de) Windkraftanlage und Turbinenlaufrad hierfür
DE202006020323U1 (de) Einrichtung zur Wirbelumformung einer Strömung
DE3707723C2 (fr)
DE60128616T2 (de) Lüfter für ein Kraftfahrzeug mit Leitschaufeln

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CA JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LU NL SE

WWE Wipo information: entry into national phase

Ref document number: 2068539

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 1991915953

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1991915953

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 1991915953

Country of ref document: EP