EP1303703B1 - Pumpe mit integrierter zerkleinerungsvorrichtung - Google Patents

Pumpe mit integrierter zerkleinerungsvorrichtung Download PDF

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Publication number
EP1303703B1
EP1303703B1 EP01958170A EP01958170A EP1303703B1 EP 1303703 B1 EP1303703 B1 EP 1303703B1 EP 01958170 A EP01958170 A EP 01958170A EP 01958170 A EP01958170 A EP 01958170A EP 1303703 B1 EP1303703 B1 EP 1303703B1
Authority
EP
European Patent Office
Prior art keywords
rotor
crusher according
shredding
front face
water
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.)
Expired - Lifetime
Application number
EP01958170A
Other languages
English (en)
French (fr)
Other versions
EP1303703A1 (de
Inventor
Santiago Gimenez Ibanez
Jean-Claude Pollet
Juan José PEREZ SALAS
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.)
Aliaxis Research and Technology SAS
Original Assignee
Societe Etex de Recherches Techniques SERT
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 Societe Etex de Recherches Techniques SERT filed Critical Societe Etex de Recherches Techniques SERT
Publication of EP1303703A1 publication Critical patent/EP1303703A1/de
Application granted granted Critical
Publication of EP1303703B1 publication Critical patent/EP1303703B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D3/00—Axial-flow pumps
    • 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
    • F04D29/2288—Rotors specially for centrifugal pumps with special measures for comminuting, mixing or separating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
    • F04D7/045—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous with means for comminuting, mixing stirring or otherwise treating

Definitions

  • the present invention relates to a sanitary grinder for sewage and waste lifting plant solids, of the type comprising a caisson receiving the waters and an electric motor whose axis has at one end a impeller pump with blades and grinding means opposite a dilaceration chamber defined between the bottom of the box and a peripheral wall with an opening input.
  • sanitary grinders are usually arranged behind the toilet bowl. They can also receive wastewater from other sanitary equipment. They can besides being embedded in a technical partition.
  • Some sanitary grinders have a blade of maceration of the solids mounted at the end of a motor shaft near the exit of the toilet bowl. Only water and solids sufficiently crushed pass through the holes of a cylindrical strainer to a tank to be sucked in by a pump located in the bottom of the tank and mounted at the other end of the engine.
  • dilaceration pumps in which the grinding system is integrated with the pump.
  • the dilaceration system consists of some cutting blades mounted on the rotor, inside centrifugal pump.
  • the latter has an entrance axial of relatively small diameter to work correctly.
  • some such as paper towels, towels or periodic tampons thrown into the toilet bowl remain blocked at the pump inlet and cling to the rotor, which also ends up blocking this one.
  • the grinding device has a blade and a counterblade arranged at the inlet of the pump, one being driven by rotation by the rotor of the pump and the other being fixed on the circumference to act like shears.
  • the device has the disadvantage of generating a noise of friction of the blades annoying for the user, as well as risks of blockage in case of penetration accidental hard objects.
  • the present invention relates to a crusher sanitary facility for sewage lifting and solid waste, of the type comprising at least one supply of water in a box, an electric motor of which the axis has at one end a rotor blade pump and grinding means facing a chamber of grinding provided with an entrance opening, characterized in that the face before the rotor is substantially flat and has a plurality of water passages arranged substantially radially and opening on the circumference of the rotor, and in that each passage of the rotor is extended by a channel delimited by helical blades, said rotor being housed in the body of the pump so that its front face is at least substantially in the plane of the opening of the body of pump, with the macerating members being arranged to protrude axial with respect to said front face.
  • the organs of dilaceration are completed by a blade circular cutting, arranged in the plane of the opening of the body, and which defines with the front face of the rotor the opening inlet of the pump.
  • the solid waste entrained by the movement of the water sucked by the pump arrive on the front face of the rotor where they undergo a cut and / or maceration by the organs of grinding, while being both repelled from the rotor in a turbulent motion because of the successive shocks of the grinding elements in protruded, and sucked up by the global movement of water.
  • This turbulence motion is generated by the rotor-type helico-centrifugal with helicoidal blades flush the water both to the periphery of the rotor, centrifugal force, and towards the rear part of the rotor, because of the inclination of the blades with respect to a plane axial.
  • the centrifugal force exerted by the rotor causes the residues to the outer cutting blade.
  • the front part of the rotor is thus closed except for the passages on the front and which, in form elongated straight or curved and arranged substantially radially, therefore lead to the periphery of the face before the rotor.
  • the width of these passages is in a range from 2 to 15 mm, the width of the passages being constant or increasing preference from the center of the rotor towards the outside of the rotor.
  • the macerating members are arranged in axial projection from 1 to 10 mm on the front face of the rotor.
  • These bodies are made of a hard material resistant to wear, such as a metal for example, and are dimensioned and shaped to cut and / or lacerate waste solid without holding them back.
  • Macerating organs can be of substantially conical, straight or inclined shape or of preferably be flat either sawtooth or slats when the leading face is sufficiently inclined to avoid retaining and rotate fibrous substances.
  • the macerating members may be arranged on a insert on which the rotor is overmoulded or said insert, such as a metal plate, is attached to the front face of the rotor, the metal plate being cut in such a way as to leave the rotor passages free when affixed on the front face of said rotor.
  • These bodies of dilaceration may also be fixed in compartments this effect on the front face of the rotor.
  • the opening of the pump body is equipped with a circular cutting blade of internal diameter slightly greater than the outside diameter of the front face of the rotor.
  • the blade presents at the periphery of the rotor participates in cutting processing and waste laceration due to the relative movement of rotor relative to this blade.
  • the tear chamber is defined between the front face of the rotor provided with the shearing elements, the front face of the pump body, bottom and peripheral wall.
  • This unclosed peripheral wall is preferably substantially circular and presents a shape bringing back the waters and solids in swirling motion towards the center of the rotor.
  • said peripheral wall has a bent nose end pointing towards the axis of rotation of the rotor.
  • This beak is disposed adjacent to the water inlet and waste to the churn chamber, so that bring back the direction of the swirling flow substantially parallel and in the same direction as the incoming flow in the dilaceration chamber.
  • the bottom of the grinding chamber comprises at least one protuberance which is disposed off-center by relative to the axis of rotation of the rotor. This or these protuberances help move solids to the rotor and the bodies of misplacement in the movement swirling generated in the dilaceration chamber.
  • the motor and pump as well as the electrical parts of the crusher are enclosed in a watertight compartment of a box in which it is housed and which presents a substantially parallelepipedic or cylindrical shape.
  • this watertight compartment is made in the form of a cassette nestable in the box and removable, said cassette being in particular adaptable to the end said box whose bottom constitutes the bottom of the chamber of the peripheral wall also defining the tearing chamber.
  • the position of the cassette being offset with respect to the axis of disconnection of the bowl, it is thus possible to remove without tedious disassembly of crusher, the cassette comprising the motor, the pump and the means of grinding to repair, maintain, even make a standard exchange in case of defect.
  • Part of the box located immediately behind the WC bowl serves as a reserve chamber allowing quickly collect water from the toilet.
  • the grinder sanitary facility for sewage lifting and solid waste comprises a box 1 receiving the waters, a sealed compartment 2 enclosing the electric members E, and an electric motor M arranged vertically according to an X axis.
  • This motor M drives at its lower end a rotor 5 to blades 6 of a lifting pump.
  • the rotor 5 is provided with macerating means arranged opposite a chamber of maceration 3 defined between the bottom of the box 1 and a peripheral wall 4 provided with an inlet opening 4a.
  • the front face 5a of the rotor 5 is substantially flat and comprises a plurality of passages 7 for water, arranged substantially radially and opening on the periphery of the rotor 5.
  • a each passage 7 corresponds to a helical blade 6 of the rotor 5.
  • the rotor 5 is housed in the body 8 of the pump so that its front face 5a is substantially in the plane of the opening of the pump body 8 (see Figure 1) or slightly protruding from this plane (see Figure 5).
  • the opening pump body 8 of inner diameter slightly greater than the outside diameter of the front part 5a of the rotor 5 is preferably materialized by a blade circular cutting 11.
  • the means of dilaceration are formed by organs 9, inclined conical shape in FIGS. 4 and 5, disposed in axial projection relative to said front face 5a.
  • Figures 6 and 7 show a variant of realization of bodies of dilaceration 9. These are spared on a metal insert 10 then reported on the face before 5a of the rotor 5 or the rotor can be overmolded on said insert 10.
  • the insert is made of a star whose branches 10 'are housed between passages 7 for water. The end of each branch 10 'is cut into a point and this tip is folded to form an organ of 9. When inserting insert 10 onto the front face 5a of the rotor 5, each tip 9 is disposed at near a passage 7.
  • the motor M and the pump as well as the electric members E are housed in a sealed compartment 2 made in form cassette (see Figure 1) in the bottom of which is housed the pump body 8 with the rotor 5.
  • This cassette 2 is set up in the box 1 so that the rotor 5 is facing the bottom of the box 1 at the level of the dilaceration chamber 3 defined by the peripheral wall 4.
  • This peripheral wall 4 is substantially circular and therefore delimits the dilaceration chamber 3, containing the swirling motion (according to arrow C) of the waters and solids entering said chamber 3 (see Figure 3).
  • the peripheral wall 4 has a shaped end curved nose 4b pointing substantially towards the axis of Rotor X rotation 5. This particular form of the end of the peripheral wall favors the entry of waste in the grinding chamber 3 but avoids also the exit of this waste, the redirection of waters induced by this nozzle 4b tending to bring the waste back to the center of the dilaceration chamber 3.
  • the bottom of the box 1 may comprise in said chamber of disintegration 3 of the relief parts acting on the movement of waste, so as to improve the process of maceration.
  • the bottom of the box 1 may comprise in said chamber of disintegration 3 of the relief parts acting on the movement of waste, so as to improve the process of maceration.
  • two protuberances for example conical, 12, 13 eccentric by relative to the axis of rotation X of the rotor 5.
  • One of the protuberances 12 is located near said axis X of the rotor while the other protuberance 13 is disposed substantially at the junction of incoming and swirling flows in the tear chamber 3.
  • the cassette 2 being preferably positioned at one end of caisson 1, the evacuation of wastewater and waste solid out of a toilet bowl for example is not next to the dilaceration chamber 3.
  • a channel supplying water for example a bent pipe 14, which brings water and solid waste out of a evacuation towards the opening 4a of the dilaceration chamber 3.
  • the end of the wall 4 also has a spout 4c in a direction substantially opposite that of spout 4b of such that at the outlet of the pipe 14, this nozzle 4c and the nozzle 4b guide the solid waste to the inlet 4a of the 3.
  • the spout 4c also makes it possible to define a non-turbulence zone for the capture of the height of water detected by a pressure switch.
  • Solid wastes driven by the movement of water sucked by the pump arrive on the front face of the rotor 5 where they are cut and / or dilated by 9, while being repulsed at the same time of the rotor 5 in a turbulent movement due to shocks successive protruding elements 9 protruding, and sucked by the global movement of water.
  • This movement of Turbulence is generated by the rotor 5 of the helico-centrifugal type.
  • the helically shaped blades 6 drive the water both towards the periphery of the rotor 5 due to the force centrifugally and towards the rear part of the rotor 5 because of the inclination of the blades 6 relative to an axial plane.
  • the cassette 2 has an outlet 15 of the pump body 8 connectable by the outlet manifold 15 to a pipe 16.
  • This exhaust pipe 16 is extended preferably by a non-return valve integral with the discharge pipe.
  • the casing 1 comprises connections 20 for other inflow of water and waste so that it is connectable to other water lifting installations used as sink, bidet, shower, etc.
  • hood system enclosing the upper part of the engine, provided with fins, and channeling the airflow.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Reciprocating Pumps (AREA)
  • Dental Preparations (AREA)

Claims (19)

  1. Zerkleinerer für Sanitärzwecke für eine Anlage zum Hochpumpen von Abwässern und von festen Abfällen, mit einem Kanal zur Zuführung des Wassers in einen Behälter (1), einem Elektromotor, dessen Welle (X) an ihrem Ende eine Pumpe mit einem Rotor (5) mit Blättern (6) aufweist, und Zerkleinerungsmitteln, welche einer mit einer Eintrittsöffnung (4a) versehenen Zerkleinerungskammer (3) zugewandt sind, dadurch gekennzeichnet, dass die Vorderseite (5a) des Rotors (5) im wesentlichen flächig ist und eine Vielzahl von Durchgängen (7) für das Wasser aufweist, die im wesentlichen radial angeordnet sind und auf dem Umfang des Rotors (5) münden, und dass jeder Durchgang (7) des Rotors (5) durch einen Kanal verlängert ist, welcher durch spiralförmige Blätter (6) begrenzt ist, wobei der genannte Rotor (5) in dem Körper (8) der Pumpe derart aufgenommen ist, dass seine Vorderseite (5a) sich zumindest im wesentlichen in der Ebene der Öffnung des Pumpenkörpers befindet, wobei Zerkleinerungsorgane (9) in Bezug auf die genannte Vorderseite (5a) axial vorspringend angeordnet sind.
  2. Zerkleinerer nach Anspruch 1, dadurch gekennzeichnet, dass der Innendurchmesser der Öffnung des Pumpenkörpers dem Außendurchmesser des Rotors (5) im wesentlichen gleich ist.
  3. Zerkleinerer nach Anspruch 2, dadurch gekennzeichnet, dass die Öffnung des Pumpenkörpers durch eine kreisförmige Schneide (11) gebildet ist.
  4. Zerkleinerer nach Anspruch 3, dadurch gekennzeichnet, dass die Breite der auf der Vorderseite des Rotors (5) gebildeten Durchgänge (7) in einem Bereich von 2 bis 15 mm liegt, wobei die Breite der Durchgänge (7) konstant ist oder von dem Zentrum des Rotors (5) zum Außenbereich des Rotors (5) hin zunimmt.
  5. Zerkleinerer nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Zerkleinerungsorgane (9) axial um 1 bis 10 mm vorspringend auf der Vorderseite (5a) des Rotors (5) angeordnet sind.
  6. Zerkleinerer nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Zerkleinerungsorgane (9) aus einem harten, verschleißfesten Material hergestellt sind, wobei die Zerkleinerungsorgane (9) derart ausgestaltet und dimensioniert sind, dass sie die festen Abfälle schneiden und/oder zerkleinern können, ohne sie festzuhalten.
  7. Zerkleinerer nach Anspruch 6, dadurch gekennzeichnet, dass die Zerkleinerungsorgane (9) eine im wesentlichen konische, gerade oder schräge Form aufweisen.
  8. Zerkleinerer nach Anspruch 6, dadurch gekennzeichnet, dass die Zerkleinerungsorgane (9) flach und entweder sägezahnförmig oder schneidenförmig sind.
  9. Zerkleinerer nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, dass die Zerkleinerungsorgane (9) auf einem Einsatzteil angeordnet sind, an das oder Rotor (5) angeformt ist.
  10. Zerkleinerer nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, dass die Zerkleinerungsorgane (9) auf einem Einsatzteil (10) angeordnet sind, welches an die Vorderseite (5a) des Rotors (5) angesetzt ist.
  11. Zerkleinerer nach Anspruch 10, dadurch gekennzeichnet, dass das Einsatzteil eine metallische Platte ist, welche derart ausgeschnitten ist, dass die Durchgänge (7) frei gelassen sind, wenn sie auf die Vorderseite (5a) des Rotors (5) aufgelegt ist.
  12. Zerkleinerer nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass die Umfangswand (4), die die Zerkleinerungskammer (3) begrenzt, im wesentlichen kreisförmig ist und eine Form aufweist, welche das Wasser und die Feststoffe in einer Strudelbewegung zum Zentrum des Rotors zurückführt.
  13. Zerkleinerer nach Anspruch 12, dadurch gekennzeichnet, dass die genannte Umfangswand (4) ein Ende in Form eines gebogenen Schnabels (4b) aufweist, der in Richtung der Drehachse (X) des Rotors (5) zeigt.
  14. Zerkleinerer nach Anspruch 13, dadurch gekennzeichnet, dass das Ende der Wand (4) einen im Wesentlichen entgegengesetzt zur Richtung des Schnabels (4b) gerichteten Schnabel (4c) aufweist.
  15. Zerkleinerer nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, dass der Boden der Zerkleinerungskammer (3) mindestens einen Vorsprung (12, 13) aufweist, welcher in Bezug auf die Drehachse (X) des Rotors (5) exzentrisch angeordnet ist.
  16. Zerkleinerer nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, dass ein Kanal (14) das Wasser und die festen Abfälle am Ausgang des WC-Beckens zu der Öffnung (4a) der Zerkleinerungskammer (3) führt.
  17. Zerkleinerer nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, dass der Motor (M) und die Pumpe sowie die elektrischen Bauteile(E) in einem Fach (2) aufgenommen , das gegenüber dem Wasser des Behälters (1), in den es eingesetzt ist, abgedichtet ist.
  18. Zerkleinerer nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das abgedichtete Fach (2) als Kassette ausgebildet ist, welche in dem Behälter (1) an dem Ende des genannten Behälters (1) einsteckbar ist und demontiert werden kann und deren Boden den Boden der Zerkleinerungskammer bildet, wobei die Umfangswand (4) ebenfalls die Zerkleinerungskammer (3) definiert.
  19. Zerkleinerer nach Anspruch 18, dadurch gekennzeichnet, dass die Position der in dem Behälter (1) des Zerkleinerers eingesetzten Kassette (2) in Bezug auf die Verbindungsachse des WC-Beckens verschoben ist.
EP01958170A 2000-07-25 2001-07-24 Pumpe mit integrierter zerkleinerungsvorrichtung Expired - Lifetime EP1303703B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0009709A FR2812312B1 (fr) 2000-07-25 2000-07-25 Broyeur sanitaire
FR0009709 2000-07-25
PCT/FR2001/002414 WO2002008610A1 (fr) 2000-07-25 2001-07-24 Broyeur sanitaire

Publications (2)

Publication Number Publication Date
EP1303703A1 EP1303703A1 (de) 2003-04-23
EP1303703B1 true EP1303703B1 (de) 2005-07-27

Family

ID=8852869

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01958170A Expired - Lifetime EP1303703B1 (de) 2000-07-25 2001-07-24 Pumpe mit integrierter zerkleinerungsvorrichtung

Country Status (15)

Country Link
US (1) US6969018B2 (de)
EP (1) EP1303703B1 (de)
CN (1) CN1193169C (de)
AT (1) ATE300675T1 (de)
AU (1) AU2001279902A1 (de)
CA (1) CA2412597A1 (de)
DE (1) DE60112299T2 (de)
DK (1) DK1303703T3 (de)
ES (1) ES2246335T3 (de)
FR (1) FR2812312B1 (de)
NO (1) NO20030351D0 (de)
NZ (1) NZ523163A (de)
PL (1) PL201866B1 (de)
RU (1) RU2241857C2 (de)
WO (1) WO2002008610A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101825089A (zh) * 2009-03-03 2010-09-08 Ksb股份公司 带有切割边的自由流叶轮

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DE102004007739A1 (de) * 2004-02-16 2005-08-25 Wilo Ag Schneidwerk einer Kreiselpumpe
MX2008016122A (es) * 2006-09-22 2009-04-15 Shop Vac Corp Aspiradora de hojas.
DE102008032651A1 (de) * 2008-07-10 2010-01-21 Siemens Aktiengesellschaft Schienenfahrzeug mit fahrzeugseitig entleerbarem Abwassertank
US8562287B2 (en) * 2009-06-23 2013-10-22 Zoeller Pump Company, Llc Grinder pump
US9375718B2 (en) 2011-10-18 2016-06-28 Diamond Power International, Inc. Shaft-to-roller attachment for clinker grinder roller
US20170239667A1 (en) 2014-09-29 2017-08-24 OPP Sp. z.o.o. Macerator for utilisation of hospital waste, in particular cellulose pulp
CN104549669B (zh) * 2015-01-06 2017-01-04 枣庄市鑫恒星再生资源有限公司 废纸粉碎机
US10316846B2 (en) 2015-06-11 2019-06-11 Eco-Flo Products, Inc. Hybrid radial axial cutter
US10087946B2 (en) 2016-02-09 2018-10-02 Brunswick Corporation Centrifugal pumps having anti-air-locking features

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DE1140440B (de) * 1957-11-06 1962-11-29 Forsch Inst Professor Ing Chem Zerkleinerungs-, Ruehr- und Mischvorrichtung
US3228036A (en) * 1963-01-02 1966-01-11 Holley Carburetor Co Waste treatment system
US3446151A (en) * 1967-06-08 1969-05-27 Osby Pump Ind Submersible centrifugal pump
US3560106A (en) * 1969-02-13 1971-02-02 Nils Johan Sahlstrom Slurry handling pump
US3707334A (en) * 1971-01-12 1972-12-26 Whirlpool Co Water pump with air lock breaking means
US4402648A (en) * 1981-08-31 1983-09-06 A. O. Smith Harvestore Products, Inc. Chopper pump
SE444969B (sv) * 1982-10-11 1986-05-20 Flygt Ab Centrifugalpump avseddd for pumpning av vetskor innehallande fasta partiklar

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101825089A (zh) * 2009-03-03 2010-09-08 Ksb股份公司 带有切割边的自由流叶轮
CN101825089B (zh) * 2009-03-03 2014-08-13 Ksb股份公司 带有切割边的自由流叶轮

Also Published As

Publication number Publication date
FR2812312B1 (fr) 2003-01-24
DK1303703T3 (da) 2005-11-21
DE60112299D1 (de) 2005-09-01
NZ523163A (en) 2005-07-29
PL201866B1 (pl) 2009-05-29
WO2002008610A1 (fr) 2002-01-31
RU2241857C2 (ru) 2004-12-10
CN1193169C (zh) 2005-03-16
CA2412597A1 (fr) 2002-01-31
ES2246335T3 (es) 2006-02-16
AU2001279902A1 (en) 2002-02-05
US20040035961A1 (en) 2004-02-26
NO20030351L (no) 2003-01-23
FR2812312A1 (fr) 2002-02-01
NO20030351D0 (no) 2003-01-23
CN1444701A (zh) 2003-09-24
DE60112299T2 (de) 2006-06-01
PL358553A1 (en) 2004-08-09
ATE300675T1 (de) 2005-08-15
EP1303703A1 (de) 2003-04-23
US6969018B2 (en) 2005-11-29

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