SE8405244D0 - IMPROVED MULTISTAGHE CENTRIFUGAL PUMP OF THE TYPE WITH CLOSED IMPELLER - Google Patents

IMPROVED MULTISTAGHE CENTRIFUGAL PUMP OF THE TYPE WITH CLOSED IMPELLER

Info

Publication number
SE8405244D0
SE8405244D0 SE8405244A SE8405244A SE8405244D0 SE 8405244 D0 SE8405244 D0 SE 8405244D0 SE 8405244 A SE8405244 A SE 8405244A SE 8405244 A SE8405244 A SE 8405244A SE 8405244 D0 SE8405244 D0 SE 8405244D0
Authority
SE
Sweden
Prior art keywords
impeller
cover
multistaghe
improved
type
Prior art date
Application number
SE8405244A
Other languages
Swedish (sv)
Other versions
SE8405244L (en
Inventor
G Regula
Original Assignee
Jacuzzi Europ
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 Jacuzzi Europ filed Critical Jacuzzi Europ
Publication of SE8405244D0 publication Critical patent/SE8405244D0/en
Publication of SE8405244L publication Critical patent/SE8405244L/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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/16—Sealings between pressure and suction sides
    • F04D29/165—Sealings between pressure and suction sides especially adapted for liquid pumps
    • F04D29/167—Sealings between pressure and suction sides especially adapted for liquid pumps of a centrifugal flow wheel

Abstract

The improvement of the efficiency of a pump through the reduction of the liquid leakage between the cover (9) and the impeller (10) of each pump stage is achieved by providing a gasket (17) between the cover and the impeller, the gasket (17) being assembled in a seat (24) of the cover (9) and engaging a raised seal (23) on the impeller. The gasket allows a clearance between the cover and the impeller, needed for construction reasons. A diffuser (11) comprises crescent shaped blades (26) which define channels (27) shaped so as to reduce turbulence. The pump may be submerged in a well containing water. <IMAGE>
SE8405244A 1983-10-21 1984-10-19 IMPROVED MULTI-STEP CENTRIFUGAL PUMP, OF THE TYPE WITH CLOSED PUMP WHEEL, WITH ANY PARTICULAR EFFICIENCY GIVEN SE8405244L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8323312U IT8323312V0 (en) 1983-10-21 1983-10-21 MULTI-STAGE CENTRIFUGAL PUMP OF THE CLOSED IMPELLER TYPE.

Publications (2)

Publication Number Publication Date
SE8405244D0 true SE8405244D0 (en) 1984-10-19
SE8405244L SE8405244L (en) 1985-04-22

Family

ID=11205956

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8405244A SE8405244L (en) 1983-10-21 1984-10-19 IMPROVED MULTI-STEP CENTRIFUGAL PUMP, OF THE TYPE WITH CLOSED PUMP WHEEL, WITH ANY PARTICULAR EFFICIENCY GIVEN

Country Status (9)

Country Link
DE (1) DE3438480A1 (en)
ES (1) ES282125Y (en)
FR (1) FR2558539B1 (en)
GB (1) GB2150221B (en)
GR (1) GR80708B (en)
IT (1) IT8323312V0 (en)
NO (1) NO163916C (en)
PT (1) PT79376B (en)
SE (1) SE8405244L (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1254599B (en) * 1992-02-07 1995-09-28 MULTI-STAGE CENTRIFUGAL PUMP
DE19800617A1 (en) 1998-01-12 1999-07-15 Klein Schanzlin & Becker Ag Centrifugal pump
AUPQ721300A0 (en) * 2000-05-01 2000-05-25 Davey Products Pty Ltd Impeller sealing arrangement
RU2457364C1 (en) * 2010-11-29 2012-07-27 Общество с ограниченной ответственностью "МТК-строй" Bottom hole pump stage and method of its production
EP2535591B1 (en) * 2011-06-15 2014-04-23 Grundfos Management A/S Centrifugal pump

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1783427A (en) * 1924-08-11 1930-12-02 Irving C Jennings Sealing device for centrifugal pumps
FR850685A (en) * 1938-05-21 1939-12-22 G & J Weir Improvements to rotary pumps
GB539373A (en) * 1940-04-20 1941-09-08 Hayward Tyler & Co Ltd Improvements in centrifugal pumps
GB772654A (en) * 1952-12-17 1957-04-17 Hayward Tyler & Company Ltd Improvements in or relating to submersible pumps, especially for use in submersible pump-motor combinations
GB867586A (en) * 1957-06-03 1961-05-10 Duro Co Submersible type pump
DK115677B (en) * 1966-08-09 1969-10-27 Grundfos As Centrifugal pump.
GB1283696A (en) * 1968-11-05 1972-08-02 Weir Pumps Ltd Improvements in or relating to multistage rotary fluid flow machines
DE2952427A1 (en) * 1979-12-27 1981-07-02 Sigma Koncern, Olomouc Multi=stage centrifugal hydraulic pump - has centripetal stator passages increasing in axial dimension radially inwards to reduce swirl losses
CA1158922A (en) * 1980-05-02 1983-12-20 James P. Larson Free floating sealing disk for centrifugal fluid pump

Also Published As

Publication number Publication date
PT79376A (en) 1984-11-01
DE3438480A1 (en) 1985-05-09
FR2558539A1 (en) 1985-07-26
GB8426385D0 (en) 1984-11-21
GB2150221B (en) 1987-07-15
NO844146L (en) 1985-04-22
ES282125Y (en) 1985-12-16
IT8323312V0 (en) 1983-10-21
GB2150221A (en) 1985-06-26
FR2558539B1 (en) 1989-09-08
PT79376B (en) 1986-08-08
ES282125U (en) 1985-05-01
SE8405244L (en) 1985-04-22
NO163916C (en) 1990-08-08
NO163916B (en) 1990-04-30
GR80708B (en) 1985-02-19

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