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DE3771284D1 - 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
DE3771284D1
DE3771284D1 DE8787111178T DE3771284T DE3771284D1 DE 3771284 D1 DE3771284 D1 DE 3771284D1 DE 8787111178 T DE8787111178 T DE 8787111178T DE 3771284 T DE3771284 T DE 3771284T DE 3771284 D1 DE3771284 D1 DE 3771284D1
Authority
DE
Germany
Prior art keywords
impeller
inlet
ring
sealing ring
hydraulic sealing
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.)
Expired - Lifetime
Application number
DE8787111178T
Other languages
English (en)
Inventor
Primo Lovisetto
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.)
Lowara SRL
Original Assignee
Lowara SRL
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 SRL filed Critical Lowara SRL
Application granted granted Critical
Publication of DE3771284D1 publication Critical patent/DE3771284D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04D29/08—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)
DE8787111178T 1986-08-08 1987-08-01 Hydraulischer dichtungsring fuer den laufradeinlass von ein- und mehrstufigen pumpen. Expired - Lifetime DE3771284D1 (de)

Applications Claiming Priority (1)

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.

Publications (1)

Publication Number Publication Date
DE3771284D1 true DE3771284D1 (de) 1991-08-14

Family

ID=11231522

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787111178T Expired - Lifetime DE3771284D1 (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
EP3460253A1 (de) * 2017-09-26 2019-03-27 Xylem IP Management S.à.r.l. 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
EP0257358A3 (en) 1988-11-09
IT8630733V0 (it) 1986-08-08
IT209616Z2 (it) 1988-10-24
ATE65116T1 (de) 1991-07-15
EP0257358B1 (de) 1991-07-10
EP0257358A2 (de) 1988-03-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: LOWARA S.R.L., MONTECCHIO MAGGIORE, VICENZA, IT