EP1961965A3 - Vortex impeller for centrifugal fluid-dynamic pumps - Google Patents

Vortex impeller for centrifugal fluid-dynamic pumps Download PDF

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Publication number
EP1961965A3
EP1961965A3 EP08151673A EP08151673A EP1961965A3 EP 1961965 A3 EP1961965 A3 EP 1961965A3 EP 08151673 A EP08151673 A EP 08151673A EP 08151673 A EP08151673 A EP 08151673A EP 1961965 A3 EP1961965 A3 EP 1961965A3
Authority
EP
European Patent Office
Prior art keywords
centrifugal fluid
blades
vortex impeller
dynamic pumps
impeller
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.)
Withdrawn
Application number
EP08151673A
Other languages
German (de)
French (fr)
Other versions
EP1961965A2 (en
Inventor
Eriberto Melzi
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
Publication of EP1961965A2 publication Critical patent/EP1961965A2/en
Publication of EP1961965A3 publication Critical patent/EP1961965A3/en
Withdrawn legal-status Critical Current

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
    • F04D29/24—Vanes
    • F04D29/242—Geometry, shape
    • 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
    • F04D29/24—Vanes
    • F04D29/242—Geometry, shape
    • F04D29/245—Geometry, shape for special effects

Landscapes

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

Abstract

Vortex impeller (10) for centrifugal fluid-dynamic pumps, provided with a central eye (16), an outer circumferential edge (18) and a plurality of blades (12, 12') having respective starting points (14, 14') arranged at said eye (16) of the impeller (10), each pair of contiguous blades (12, 12') defining a channel (22) arranged between them, characterised in that each of said blades (12, 12') has a profile in plan consisting of a plurality of arcs of circumference (24, 24', 24'') arranged in sequence and joined together, pairs of consecutive arcs of circumference (24, 24'; 24', 24'') having different bending radii.
EP08151673A 2007-02-21 2008-02-20 Vortex impeller for centrifugal fluid-dynamic pumps Withdrawn EP1961965A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI20070329 ITMI20070329A1 (en) 2007-02-21 2007-02-21 VORTEX IMPELLER FOR CENTRIFUGAL FLUID DYNAMIC PUMPS

Publications (2)

Publication Number Publication Date
EP1961965A2 EP1961965A2 (en) 2008-08-27
EP1961965A3 true EP1961965A3 (en) 2010-03-31

Family

ID=39456504

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08151673A Withdrawn EP1961965A3 (en) 2007-02-21 2008-02-20 Vortex impeller for centrifugal fluid-dynamic pumps

Country Status (2)

Country Link
EP (1) EP1961965A3 (en)
IT (1) ITMI20070329A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102954032A (en) * 2012-11-22 2013-03-06 无锡惠山泵业有限公司 Centrifugal water pump
CN104124849B (en) * 2013-04-25 2018-03-27 常州雷利电机科技有限公司 Draining pump brushless motor and draining pump
CN105697412A (en) * 2016-01-27 2016-06-22 浙江理工大学 Blade structure of centrifugal pump
CN105736454B (en) * 2016-04-13 2019-02-01 青岛宏新天机械有限公司 A kind of radial impeller
CN107551341B (en) * 2017-09-08 2024-04-26 美茵（北京）医疗器械研发有限公司 Centrifugal blood pump with stable rotation

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB121052A (en) * 1918-03-15 1918-12-05 Contraflo Condenser And Kineti Improvements in and connected with Centrifugal and Turbine Pumps, Blowers and the like.
GB160474A (en) * 1919-08-01 1921-03-31 James Wareing Improvements in and relating to centrifugal pumps
US2309327A (en) * 1941-02-24 1943-01-26 William P Naegele Centrifugal pump apparatus
JPS5269004A (en) * 1975-12-05 1977-06-08 Ebara Corp Impeller of rotary pump
AT394136B (en) * 1989-05-02 1992-02-10 Schima Heinrich Rotor with a centrifugal pump for blood or other shear- sensitive fluids
JPH1061594A (en) * 1996-08-14 1998-03-03 Nishiei Tekkosho:Kk Structure of impeller and pump
WO2004020836A2 (en) * 2002-08-28 2004-03-11 Ebara Corporation Centrifugal impeller and pump apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB121052A (en) * 1918-03-15 1918-12-05 Contraflo Condenser And Kineti Improvements in and connected with Centrifugal and Turbine Pumps, Blowers and the like.
GB160474A (en) * 1919-08-01 1921-03-31 James Wareing Improvements in and relating to centrifugal pumps
US2309327A (en) * 1941-02-24 1943-01-26 William P Naegele Centrifugal pump apparatus
JPS5269004A (en) * 1975-12-05 1977-06-08 Ebara Corp Impeller of rotary pump
AT394136B (en) * 1989-05-02 1992-02-10 Schima Heinrich Rotor with a centrifugal pump for blood or other shear- sensitive fluids
JPH1061594A (en) * 1996-08-14 1998-03-03 Nishiei Tekkosho:Kk Structure of impeller and pump
WO2004020836A2 (en) * 2002-08-28 2004-03-11 Ebara Corporation Centrifugal impeller and pump apparatus

Also Published As

Publication number Publication date
EP1961965A2 (en) 2008-08-27
ITMI20070329A1 (en) 2008-08-22

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