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ATE473372T1 - ELECTRIC SYNCHRONOUS PUMP WITH A SPIRAL HOUSING WITH A TANGENTIAL OUTLET - Google Patents

ELECTRIC SYNCHRONOUS PUMP WITH A SPIRAL HOUSING WITH A TANGENTIAL OUTLET

Info

Publication number
ATE473372T1
ATE473372T1 AT05740448T AT05740448T ATE473372T1 AT E473372 T1 ATE473372 T1 AT E473372T1 AT 05740448 T AT05740448 T AT 05740448T AT 05740448 T AT05740448 T AT 05740448T AT E473372 T1 ATE473372 T1 AT E473372T1
Authority
AT
Austria
Prior art keywords
rotor
impeller
rotation
axial
fluid
Prior art date
Application number
AT05740448T
Other languages
German (de)
Inventor
Giorgio Peri
Original Assignee
Askoll P & C S R L
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 Askoll P & C S R L filed Critical Askoll P & C S R L
Application granted granted Critical
Publication of ATE473372T1 publication Critical patent/ATE473372T1/en

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
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/021—Units comprising pumps and their driving means containing a coupling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0606—Canned motor pumps
    • F04D13/064—Details of the magnetic circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0077—Safety measures

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • Cyclones (AREA)
  • Medicines Containing Plant Substances (AREA)

Abstract

The pump (1) comprises : a supporting enclosure (2-4) incorporating a shaped body (3) to which there is connected a volute (4) having an axial inlet (5) and a tangential peripheral outlet (6) for the fluid being pumped, a single phase synchronous electric motor (7, 9) including a rotor (7) with permanent magnets which is rotatably mounted and can move axially and laterally in a chamber (8) formed within body (3) adjacent to the polar extremities (9a) of a stator (9) connected to the body, and a blade-bearing impeller (13) which is coupled in rotation to rotor (7) through a coupling (16) through which the rotor (7) can rotate under no load when the rotor (7, 9) starts up before the rotor drives the impeller (13) in rotation. Between rotor (7) and supporting enclosure (2-4) there is provided a ratchet coupling device (20) and a return member (28) which tends to press rotor (7) towards a coupled axial position in which ratchet device (20) is active and causes the rotation of rotor (7) to start up in a predetermined direction is associated therewith. The impeller (13) has blades (14) which are at least partly arched or inclined relative to the axial direction of the impeller (13) in such a way that as a result of interaction with the fluid rotation of the impeller (13) at a speed above a predetermined value is likely to cause axial lateral movement of the impeller (13) and rotor (7) relative to the body (3) against the force of the said return means (28).
AT05740448T 2004-05-05 2005-05-04 ELECTRIC SYNCHRONOUS PUMP WITH A SPIRAL HOUSING WITH A TANGENTIAL OUTLET ATE473372T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000016A ITBG20040016A1 (en) 2004-05-05 2004-05-05 SYNCHRONOUS PUMP WITH TANGENTIAL AUGER
PCT/IB2005/051470 WO2005106253A1 (en) 2004-05-05 2005-05-04 An electric synchronous pump with a volute having a tangential outlet

Publications (1)

Publication Number Publication Date
ATE473372T1 true ATE473372T1 (en) 2010-07-15

Family

ID=34968586

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05740448T ATE473372T1 (en) 2004-05-05 2005-05-04 ELECTRIC SYNCHRONOUS PUMP WITH A SPIRAL HOUSING WITH A TANGENTIAL OUTLET

Country Status (6)

Country Link
EP (1) EP1756428B1 (en)
AT (1) ATE473372T1 (en)
DE (1) DE602005022189D1 (en)
ES (1) ES2348643T3 (en)
IT (1) ITBG20040016A1 (en)
WO (1) WO2005106253A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1396749B1 (en) * 2008-09-08 2012-12-14 Emerson Appliance Motors Europe SINGLE-DIRECTIONAL SYNCHRONOUS ELECTRIC PUMP, PARTICULARLY FOR APPLIANCES.
DE102009013372B4 (en) * 2009-03-07 2020-06-25 Ziehl-Abegg Se Fan unit
JP6181090B2 (en) * 2015-01-17 2017-08-16 株式会社鷺宮製作所 Centrifugal pump

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1663226A (en) * 1926-05-11 1928-03-20 Peerless Pump Co Nonreversing means for pump heads
FR2649450A1 (en) * 1989-07-07 1991-01-11 Rena Sa ROTARY PUMP WITH ELECTRICAL DRIVE
IT1281839B1 (en) * 1995-01-19 1998-03-03 Askoll Srl PERFECTED DEVICE FOR STARTING THE ROTOR OF A SYNCHRONOUS PERMANENT MAGNET MOTOR

Also Published As

Publication number Publication date
DE602005022189D1 (en) 2010-08-19
EP1756428B1 (en) 2010-07-07
ITBG20040016A1 (en) 2004-08-05
EP1756428A1 (en) 2007-02-28
WO2005106253A1 (en) 2005-11-10
ES2348643T3 (en) 2010-12-10

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Legal Events

Date Code Title Description
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