EP2405143A3 - Centrifugal pump impeller - Google Patents

Centrifugal pump impeller Download PDF

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Publication number
EP2405143A3
EP2405143A3 EP11005625.6A EP11005625A EP2405143A3 EP 2405143 A3 EP2405143 A3 EP 2405143A3 EP 11005625 A EP11005625 A EP 11005625A EP 2405143 A3 EP2405143 A3 EP 2405143A3
Authority
EP
European Patent Office
Prior art keywords
wall
centrifugal pump
impeller
pump impeller
face
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.)
Granted
Application number
EP11005625.6A
Other languages
German (de)
French (fr)
Other versions
EP2405143A2 (en
EP2405143B1 (en
Inventor
Holger Stark
Alfred J. Otto
Wolfgang Geier
Wolfgang Stößner
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.)
Wilo SE
Original Assignee
Wilo SE
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 Wilo SE filed Critical Wilo SE
Publication of EP2405143A2 publication Critical patent/EP2405143A2/en
Publication of EP2405143A3 publication Critical patent/EP2405143A3/en
Application granted granted Critical
Publication of EP2405143B1 publication Critical patent/EP2405143B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2238—Special flow patterns
    • F04D29/225—Channel wheels, e.g. one blade or one flow channel
    • 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
    • F04D29/2238—Special flow patterns

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Die Erfindung betrifft ein Laufrad einer Kreiselpumpe mit einer topfförmigen, zur Laufradachse koaxialen Außenwand, von der eine Stirnseite geschlossen und die gegenüberliegende Stirnseite geöffnet ist und den Saugmund bildet, wobei in der zylindrischen Außenwand mindestens zwei Durchtrittsöffnungen angeordnet sind, die jeweils von einem Austrittskanal überdeckt sind, und dass der Austrittskanal eine gekrümmte, sich nach außen insbesondere spiralförmig erweiternde flache Kanalaußenwand aufweist, die zusammen mit sich in Ausströmrichtung erweiternden Seitenwänden an ihrem Ende eine Austrittsöffnung bildet.

Figure imgaf001
The invention relates to an impeller of a centrifugal pump with a cup-shaped, coaxial with the impeller outer wall, closed by an end face and the opposite end face is open and forms the suction mouth, wherein in the cylindrical outer wall at least two passage openings are arranged, which are each covered by an outlet channel , and that the outlet channel has a curved, outwardly in particular spirally flared flat channel outer wall which forms an outlet opening at its end together with extending in the outflow direction side walls.
Figure imgaf001
EP11005625.6A 2010-07-09 2011-07-08 Centrifugal pump impeller Active EP2405143B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010026756A DE102010026756B4 (en) 2010-07-09 2010-07-09 Impeller of a centrifugal pump

Publications (3)

Publication Number Publication Date
EP2405143A2 EP2405143A2 (en) 2012-01-11
EP2405143A3 true EP2405143A3 (en) 2015-01-14
EP2405143B1 EP2405143B1 (en) 2019-08-28

Family

ID=44343689

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11005625.6A Active EP2405143B1 (en) 2010-07-09 2011-07-08 Centrifugal pump impeller

Country Status (2)

Country Link
EP (1) EP2405143B1 (en)
DE (1) DE102010026756B4 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR742839A (en) * 1933-03-17
US2432247A (en) * 1944-11-03 1947-12-09 Lee V Mcanallen Pump
US3134331A (en) * 1963-04-19 1964-05-26 George T Adams Reversible self-priming pump
DE2844990A1 (en) * 1978-10-16 1980-04-17 Wojewodzkie Przed Gospodarki K Centrifugal pump for viscous or solids-laden liq. - has scoop-like blades and central inlet with cutting edges and solids-loosening rods
US20100047094A1 (en) * 2008-08-19 2010-02-25 Higra Industrial Ltda Amphibious modular pumps

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH94909A (en) * 1921-05-21 1922-06-01 Peter Alfred Channelless centrifugal pump, especially for pumping impure liquids with different specific weights.
DE3615686A1 (en) * 1986-05-09 1987-11-12 Klein Schanzlin & Becker Ag CHANNEL WHEEL FOR CENTRIFUGAL PUMPS

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR742839A (en) * 1933-03-17
US2432247A (en) * 1944-11-03 1947-12-09 Lee V Mcanallen Pump
US3134331A (en) * 1963-04-19 1964-05-26 George T Adams Reversible self-priming pump
DE2844990A1 (en) * 1978-10-16 1980-04-17 Wojewodzkie Przed Gospodarki K Centrifugal pump for viscous or solids-laden liq. - has scoop-like blades and central inlet with cutting edges and solids-loosening rods
US20100047094A1 (en) * 2008-08-19 2010-02-25 Higra Industrial Ltda Amphibious modular pumps

Also Published As

Publication number Publication date
EP2405143A2 (en) 2012-01-11
DE102010026756A1 (en) 2012-01-12
DE102010026756B4 (en) 2012-10-25
EP2405143B1 (en) 2019-08-28

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