ATE65116T1 - Hydraulischer dichtungsring fuer den laufradeinlass von ein- und mehrstufigen pumpen. - Google Patents

Hydraulischer dichtungsring fuer den laufradeinlass von ein- und mehrstufigen pumpen.

Info

Publication number
ATE65116T1
ATE65116T1 AT87111178T AT87111178T ATE65116T1 AT E65116 T1 ATE65116 T1 AT E65116T1 AT 87111178 T AT87111178 T AT 87111178T AT 87111178 T AT87111178 T AT 87111178T AT E65116 T1 ATE65116 T1 AT E65116T1
Authority
AT
Austria
Prior art keywords
impeller
inlet
ring
liquid
face
Prior art date
Application number
AT87111178T
Other languages
English (en)
Inventor
Primo Lovisetto
Original Assignee
Lowara Spa
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 Lowara Spa filed Critical Lowara Spa
Application granted granted Critical
Publication of ATE65116T1 publication Critical patent/ATE65116T1/de

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D1/06—Multi-stage pumps
    • F04D1/063—Multi-stage pumps of the vertically split casing type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Mechanical Sealing (AREA)
AT87111178T 1986-08-08 1987-08-01 Hydraulischer dichtungsring fuer den laufradeinlass von ein- und mehrstufigen pumpen. ATE65116T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8630733U IT209616Z2 (it) 1986-08-08 1986-08-08 Anello di tenuta idraulica sulla bocca della girante in pompe mono e pluristadio.
EP87111178A EP0257358B1 (de) 1986-08-08 1987-08-01 Hydraulischer Dichtungsring für den Laufradeinlass von ein- und mehrstufigen Pumpen

Publications (1)

Publication Number Publication Date
ATE65116T1 true ATE65116T1 (de) 1991-07-15

Family

ID=11231522

Family Applications (1)

Application Number Title Priority Date Filing Date
AT87111178T ATE65116T1 (de) 1986-08-08 1987-08-01 Hydraulischer dichtungsring fuer den laufradeinlass von ein- und mehrstufigen pumpen.

Country Status (4)

Country Link
EP (1) EP0257358B1 (de)
AT (1) ATE65116T1 (de)
DE (1) DE3771284D1 (de)
IT (1) IT209616Z2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3939156C2 (de) * 1989-11-27 1994-01-27 Grundfos International A S Bje Zusammengesetztes Laufrad für eine Kreiselpumpe
DE4330098A1 (de) * 1993-09-06 1995-03-09 Klein Schanzlin & Becker Ag Als Blechformteil ausgebildete Leiteinrichtung
DE19607292C2 (de) * 1996-02-27 2000-06-08 Grundfos A S Bjerringbro Gehäuse mit Leitapparat für eine Pumpenstufe einer mehrstufigen Kreiselpumpe
DE10260443A1 (de) * 2002-12-21 2004-07-01 Ksb Aktiengesellschaft Strömungsmaschinengehäuse
GB0412231D0 (en) * 2004-06-02 2004-07-07 Weir Pumps Ltd Mechanical assembly and deformable element therefor
EP2148096B1 (de) * 2008-07-25 2013-04-10 Grundfos Management A/S Kreiselpumpe
IT1398921B1 (it) 2010-03-25 2013-03-28 Caprari Spa Pompa centrifuga.
EP3181909B1 (de) 2015-12-14 2020-04-08 Wilo Se Kompakte dichtringeinheit
EP3460253B1 (de) * 2017-09-26 2025-03-19 Xylem Europe GmbH Pumpe mit verschleissring

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1839514A (en) * 1929-01-23 1932-01-05 Pacific Pump Works Device for preventing short circuiting flow around impellers
US2644403A (en) * 1952-03-05 1953-07-07 Ingersoll Rand Co Device for preventing clogging in centrifugal pumps
SE396454C (sv) * 1974-04-30 1978-01-09 Asea Ab Hogtryckspress
DE3207327A1 (de) * 1982-03-01 1983-09-08 Heinz Konrad Prof. Dr.-Ing. 7050 Waiblingen Müller Wellendichtung
IT1180991B (it) * 1984-06-07 1987-09-23 Lowara Spa Dispositivo di tenuta interposto tra girante e corpo pompa

Also Published As

Publication number Publication date
EP0257358B1 (de) 1991-07-10
DE3771284D1 (de) 1991-08-14
EP0257358A3 (en) 1988-11-09
IT8630733V0 (it) 1986-08-08
EP0257358A2 (de) 1988-03-02
IT209616Z2 (it) 1988-10-24

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties