WO2005106205A1 - Machine fluidique exempte de pale - Google Patents

Machine fluidique exempte de pale Download PDF

Info

Publication number
WO2005106205A1
WO2005106205A1 PCT/CZ2005/000029 CZ2005000029W WO2005106205A1 WO 2005106205 A1 WO2005106205 A1 WO 2005106205A1 CZ 2005000029 W CZ2005000029 W CZ 2005000029W WO 2005106205 A1 WO2005106205 A1 WO 2005106205A1
Authority
WO
WIPO (PCT)
Prior art keywords
stator
rotor
bladeless
fluid
shape
Prior art date
Application number
PCT/CZ2005/000029
Other languages
English (en)
Inventor
Miroslav Sterba
Jaroslav Pelant
Martin Kyncl
Original Assignee
Miroslav Sterba
Jaroslav Pelant
Martin Kyncl
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 Miroslav Sterba, Jaroslav Pelant, Martin Kyncl filed Critical Miroslav Sterba
Publication of WO2005106205A1 publication Critical patent/WO2005106205A1/fr

Links

Classifications

    • 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
    • F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
    • F01D1/34—Non-positive-displacement machines or engines, e.g. steam turbines characterised by non-bladed rotor, e.g. with drilled holes
    • F01D1/36—Non-positive-displacement machines or engines, e.g. steam turbines characterised by non-bladed rotor, e.g. with drilled holes using fluid friction
    • 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
    • F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/06—Adaptations for driving, or combinations with, hand-held tools or the like control thereof
    • F01D15/067—Adaptations for driving, or combinations with, hand-held tools or the like control thereof characterised by non-bladed rotor
    • 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
    • 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
    • F03B5/00—Machines or engines characterised by non-bladed rotors, e.g. serrated, using friction
    • 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

Definitions

  • the invention concerns a bladeless fluid machine comprising a stator in which a bladeless rotor of a rotationally symmetrical shape is axially mounted while between the stator and the rotor there is a coaxial channel and the stator is equipped with at least one fluid inlet and at least one fluid outlet and the fluid outlet is positioned away from the fluid inlet in the direction of the axis of the bladeless rotor.
  • the hydraulic motor for driving mechanical tools described in Czech utility model no. 7606 and in international application PCT/CZ98/00013, published under no. WO 99/61790, the disclosure of which is incorporated by reference, is also based on the same principle.
  • This hydraulic motor is also equipped with a bladeless rotor installed in a stator in such a way that when fluid enters the stator, the rotor deflects from the central position, touches the inner wall of the stator and starts to roll along the inner wall of the stator in a circular way.
  • a common disadvantage of the above-mentioned embodiments is that the bladeless rotor cannot be attached to an axially positioned rigid shaft as such a simple installation would not make it possible for the rotor to deflect from the central position and to roll on the inner wall of the stator.
  • Author's certificate no. 941 665 of the former USSR discloses a hydraulic motor that consists of a guiding channel in which a confusor is created. In the axis of the confusor a ball rotor is installed on a shaft. The rotor is connected to a starting motor.
  • a bladeless fluid machine comprising a stator in which a bladeless rotor of a rotationally symmetric shape is axially mounted in a rotating way and a coaxial channel between the stator and the rotor.
  • the stator is equipped with at least one fluid inlet and at least one fluid outlet while the fluid outlet is positioned away from the fluid inlet in the direction of the axis of the bladeless rotor.
  • the principle of the invention is that the fluid inlet is oriented tangentially to the stator and that the coaxial channel has the shape of a diffuser at least in part of its length.
  • the advantage of a bladeless fluid machine based on this invention is that it does not need any auxiliary rotating drive and in spite of this it can have simple rotor mounting.
  • a coaxial channel with the shape of a diffuser allows optimum utilization of energy of the entering fluid.
  • the fluid inlet comprises of a nozzle that can be preferably provided with direction control and/or flow regulation.
  • the bladeless rotor is mounted onto a rigid shaft.
  • the bladeless rotor has an elongated shape and its diameter decreases in the direction from the fluid inlet to the fluid outlet.
  • fig. 1 schematically presents the first embodiment of a bladeless fluid machine based on the invention.
  • Fig. 2 shows another embodiment of a bladeless fluid machine based on the invention.
  • Fig. 3 presents the embodiment according to fig. 2 in an axial view.
  • Figs. 4 through 13 schematically present various shapes of rotors and stators and coaxial channels consequently.
  • the bladeless fluid machine according to fig. 1 has a stator 1 of a cylindrical shape.
  • a bladeless rotor 2 of a rotationally symmetrical shape is mounted on a rigid shaft 3.
  • a coaxial channel 7 Between the stator 1 and the rotor 2 there is a coaxial channel 7 ensuring free flow of fluid.
  • the ends of the shaft 3 are mounted in the stator 1 in bearings 6, so the bladeless rotor 2 is fixed to the stator 1 in a pivoted way.
  • bladeless rotor of a rotationally symmetrical shape means a body which has an axis of rotation, which is simultaneously its axis of symmetry, i.e. on all planes passing through the axis of symmetry the section of the rotor is the same.
  • the generatrix the rotation of which determines the shape of the outer surface of the rotor can in principle have any shape.
  • the stator 1 is equipped with a tangentially oriented fluid inlet 8 at one end and a fluid outlet 5 at the other end. It is obvious that there may be several fluid inlets 8 as well as fluid outlets 5. In the embodiment presented in fig 1 there is one fluid inlet 8 comprising one tangentially oriented nozzle 4 while there are several fluid outlets 5. In this embodiment the fluid outlets 5 are arranged both in the front wall of the stator 1 and in the shell of the stator 1 near the above-mentioned front wall of the stator 1.
  • the bladeless rotor 2 has the shape of a truncated cone and as the inner surface of the stator 1 has a cylindrical shape, a coaxial channel 7 is formed between the stator 1 and rotor 2.
  • the coaxial channel 7 gets wider in the flow direction of the fluid and this way it creates a diffuser since the angle ⁇ of inclination of the shell of the stator 1 is zero and the angle ⁇ of the inclination of the shell of the rotor 2 has positive values (see fig. 4).
  • the bladeless rotor 2 with the shape of a truncated cone is installed in the stator 1 in such a way that the largest diameter of the bladeless rotor 2 is arranged at the side of the fluid inlet 8 and the smallest diameter of the bladeless rotor 2 is at the side of the fluid outlet 5.
  • the nozzle 4 of the fluid inlet 8 enters the stator 1 tangentially in a place between the largest diameters of the bladeless rotor 2 and the adjacent front wall of the stator 1.
  • the nozzle 4 can be equipped with a control of direction of the nozzle 4 and/or regulation of fluid flow through the nozzle 4 (not shown in the drawing).
  • a control of direction of the nozzle 4 and/or regulation of fluid flow through the nozzle 4 (not shown in the drawing).
  • Pressure fluid entering the stator 1 through the fluid inlet 8 travels tangentially along the inner wall of the stator 1 while it gradually enters the coaxial channel 7 between the stator 1 and the rotor 2, turns the rotor 2 and subsequently leaves the stator 1 through the fluid outlets 5.
  • the coaxial channel 7 with the shape of a diffuser ensures optimum utilization of energy of the flowing fluid as in the diffuser boundary layers are advantageously created that significantly participate in executing the characteristic phenomenon the principle of which is explained with the use of the mathematical formulas presented below.
  • the cylindrical stator 1 of the machine had the external diameter of 41 mm and the internal diameter of 34.5 mm.
  • the largest diameter of the used bladeless rotor 2 with the shape of a truncated cone was 33 mm while its smallest diameter was 29.8 mm and its length was 32 mm.
  • the fluid used was pressurized air from a pressure vessel in which the pressure was maintained within the range of 380 to 420 kPa. With the use of pressure regulation (not shown) of the nozzle 4 the speed of the rotor 2 in the range of 2,800 to 3,650 rpm was achieved while the motor power was in the range of 135 to 270 W.
  • air was used as the driving fluid, but all fluids can be used in general.
  • the bladeless fluid machine according to fig. 2 (side view) and fig. 3 (axial view) only differs from the embodiment shown in fig. 1 by the fact that the stator 1 does not have a cylindrical shape, but has the shape of a truncated cone like the rotor 2. However, even in this case the coaxial channel 7 forms a diffuser as the inclination angle ⁇ of the shell of the stator 1 is smaller than the inclination angle ⁇ of the rotor 2 shell (see also fig. 5).
  • Figs. 2 and 3 indicate that the position of the nozzle 4 can be adjusted in all direction.
  • the bladeless rotor 2 does not need to have the shape of a truncated cone only as in the embodiments presented in figs. 1 through 3. The only condition is that the shape of the bladeless rotor must be rotationally symmetrical.
  • the bladeless rotor 2 It is generally advantageous for the bladeless rotor 2 to have an elongated shape and for its diameters to get smaller in the direction from the fluid inlet 8 to the fluid outlet 5.
  • the stator 1 must have such a shape that the coaxial channel 7 can form a diffuser at least in part of its length.
  • Figs. 6 through 13 show other examples of possible shapes of the stator 1 and rotor 2.
  • the rotor 2 has a cylindrical shape and the stator 1 has the shape of a cone whose diameter gets wider in the flow direction. It means that the coaxial channel between the rotor 2 and stator 1 forms a diffuser.
  • both the rotor 2 and the stator 1 have the shape of a cone whose diameter gets wider in the flow direction.
  • the inclination angle ⁇ of the shell of the stator 1 is bigger than the inclination angle ⁇ of the shell of the rotor 2, which means that the coaxial channel between the rotor
  • stator 1 forms a diffuser
  • the embodiment shown in fig. 8 is similar to the embodiment in fig. 5 while the embodiment in fig. 8 differs from the embodiment in fig. 5 by the fact that the stator 1 has the form of a narrowing cone only in part of its length while at the end it has a cylindrical shape. This means that the coaxial channel 7 between the rotor 2 and stator 1 forms a diffuser only in part of its length, which is, however, sufficient for the function of the machine.
  • the embodiment in fig. 9 only differs from the embodiment in fig. 8 by the fact that it is not only the stator 1 that has a cylindrical ending, but also the rotor 2. It means that the coaxial channel 7 between the rotor 2 and stator 1 forms a diffuser only in part of its length.
  • the first section (related to the flow direction) of the coaxial channel 7 between the rotor 2 and stator 1 has the shape of a confusor and it is only the continuing part of the coaxial channel 7 that has the shape of a diffuser. As we have mentioned, it is sufficient for the function of a bladeless fluid machine if the coaxial channel 7 has the shape of a diffuser at least in part of its length.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne une machine fluidique exempte de pale comprenant un stator (1) et dans laquelle un rotor exempt de pale (2) de forme rotative symétrique est installé. Entre le stator et le rotor, il y a un canal coaxial (7). Le stator (1) est équipé d'au moins une admission de fluide (8) et d'au moins une évacuation de fluide (5) positionnée à distance de l'admission de fluide (8) dans la direction de l'axe du rotor exempt de pale (2). L'admission de fluide (8) est connectée de manière tangentielle au stator (1) et le canal coaxial (7) se présente sous la forme d'un diffuseur au moins partiellement de sa longueur.
PCT/CZ2005/000029 2004-04-28 2005-03-29 Machine fluidique exempte de pale WO2005106205A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZPV2004-545 2004-04-28
CZ2004545A CZ295305B6 (cs) 2004-04-28 2004-04-28 Bezlopatkový tekutinový stroj

Publications (1)

Publication Number Publication Date
WO2005106205A1 true WO2005106205A1 (fr) 2005-11-10

Family

ID=34706114

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CZ2005/000029 WO2005106205A1 (fr) 2004-04-28 2005-03-29 Machine fluidique exempte de pale

Country Status (2)

Country Link
CZ (1) CZ295305B6 (fr)
WO (1) WO2005106205A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007000122A1 (fr) * 2005-06-27 2007-01-04 Miroslav Sterba Machine entrainee par un liquide
WO2014136198A1 (fr) * 2013-03-05 2014-09-12 有限会社中▲野▼製作所 Dispositif d'entraînement rotatif
EP2868864A1 (fr) * 2013-11-04 2015-05-06 Institut von Karman de Dynamique des Fluides, AISBL Machine à fluide axiale et procédé d'extraction de puissance
WO2016135914A1 (fr) * 2015-02-26 2016-09-01 有限会社中▲野▼製作所 Dispositif d'entraînement rotatif

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2404371A (en) * 1940-01-31 1946-07-23 Glaser Alex Frederik George Fluid turbine
US4027995A (en) * 1975-07-14 1977-06-07 Berry Clyde F Steam track turbine
SU941665A1 (ru) * 1980-12-25 1982-07-07 Всесоюзный заочный машиностроительный институт Гидродвигатель
WO1998017910A1 (fr) * 1996-10-17 1998-04-30 Sedlacek Miroslav Machine hydraulique rotative
WO2004097203A1 (fr) * 2003-05-02 2004-11-11 Krugmann, Hanns-Michael Propulsion de vehicules ou transport d'un milieu au moyen d'un corps conique
CZ294708B6 (cs) * 2001-09-13 2005-02-16 Miroslav Ing. Csc. Sedláček Odvalovací kapalinová turbína

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2404371A (en) * 1940-01-31 1946-07-23 Glaser Alex Frederik George Fluid turbine
US4027995A (en) * 1975-07-14 1977-06-07 Berry Clyde F Steam track turbine
SU941665A1 (ru) * 1980-12-25 1982-07-07 Всесоюзный заочный машиностроительный институт Гидродвигатель
WO1998017910A1 (fr) * 1996-10-17 1998-04-30 Sedlacek Miroslav Machine hydraulique rotative
CZ294708B6 (cs) * 2001-09-13 2005-02-16 Miroslav Ing. Csc. Sedláček Odvalovací kapalinová turbína
WO2004097203A1 (fr) * 2003-05-02 2004-11-11 Krugmann, Hanns-Michael Propulsion de vehicules ou transport d'un milieu au moyen d'un corps conique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE EPODOC EUROPEAN PATENT OFFICE, THE HAGUE, NL; 16 April 2003 (2003-04-16), SEDLACEK MIROSLAV ET AL.: "Hydraulic Turbine with non-bladed rotor", XP002333643 *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007000122A1 (fr) * 2005-06-27 2007-01-04 Miroslav Sterba Machine entrainee par un liquide
CN105121839B (zh) * 2013-03-05 2017-10-03 有限公司中野制作所 旋转驱动设备
CN105121839A (zh) * 2013-03-05 2015-12-02 有限公司中野制作所 旋转驱动设备
KR20150036501A (ko) * 2013-03-05 2015-04-07 유겐가이샤 나카노세이사쿠쇼 회전 구동 장치
US10267285B2 (en) 2013-03-05 2019-04-23 Yugen Kaisha Nakanoseisakusho Rotation drive apparatus
WO2014136198A1 (fr) * 2013-03-05 2014-09-12 有限会社中▲野▼製作所 Dispositif d'entraînement rotatif
US20150292468A1 (en) * 2013-03-05 2015-10-15 Yugen Kaisha Nakanoseisakusho Rotation drive apparatus
JP5671754B1 (ja) * 2013-03-05 2015-02-18 有限会社中▲野▼製作所 回転駆動装置
KR101643109B1 (ko) 2013-03-05 2016-07-26 유겐가이샤 나카노세이사쿠쇼 회전 구동 장치
CN106460518A (zh) * 2013-11-04 2017-02-22 Mbda法国简易股份公司 用于提取动力的轴向流体机械和方法
JP2016538482A (ja) * 2013-11-04 2016-12-08 エムベデア フランス、エスアエス 動力取出しのための軸流流体機械及び方法
WO2015063343A1 (fr) * 2013-11-04 2015-05-07 Institut Von Karman De Dynamique Des Fluides, Aisbl Machine à fluide axiale et procédé pour extraction d'énergie
AU2014343563B2 (en) * 2013-11-04 2018-06-14 Mbda France, Sas Axial fluid machine and method for power extraction
EP2868864A1 (fr) * 2013-11-04 2015-05-06 Institut von Karman de Dynamique des Fluides, AISBL Machine à fluide axiale et procédé d'extraction de puissance
RU2731142C2 (ru) * 2013-11-04 2020-08-31 Мбда Франс, Сас Осевая машина, работающая на текучей среде, и способ получения энергии
WO2016135914A1 (fr) * 2015-02-26 2016-09-01 有限会社中▲野▼製作所 Dispositif d'entraînement rotatif

Also Published As

Publication number Publication date
CZ2004545A3 (cs) 2005-07-13
CZ295305B6 (cs) 2005-07-13

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