EP1201931A3 - Sliding-contact bearing for a centrifugal pump - Google Patents

Sliding-contact bearing for a centrifugal pump Download PDF

Info

Publication number
EP1201931A3
EP1201931A3 EP01204014A EP01204014A EP1201931A3 EP 1201931 A3 EP1201931 A3 EP 1201931A3 EP 01204014 A EP01204014 A EP 01204014A EP 01204014 A EP01204014 A EP 01204014A EP 1201931 A3 EP1201931 A3 EP 1201931A3
Authority
EP
European Patent Office
Prior art keywords
centrifugal pump
sliding
contact bearing
ring
case
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Withdrawn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
EP01204014A
Other languages
German (de)
French (fr)
Other versions
EP1201931A2 (en
Inventor
Edoardo Garibotti
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.)
Tmp SpA Termomeccanica Pompe
Original Assignee
Tmp SpA Termomeccanica Pompe
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 Tmp SpA Termomeccanica Pompe filed Critical Tmp SpA Termomeccanica Pompe
Publication of EP1201931A2 publication Critical patent/EP1201931A2/en
Publication of EP1201931A3 publication Critical patent/EP1201931A3/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Withdrawn legal-status Critical Current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
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/041—Axial thrust balancing
    • F04D29/0413—Axial thrust balancing hydrostatic; hydrodynamic thrust bearings

Landscapes

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

Abstract

A protection device (20) for centrifugal pumps with a vertical axis, where the aforementioned pump comprises a case (5) containing a shaft (21), with the pump also comprising an impeller (3) connected to said shaft (21) and free to rotate inside said case (5). The device (20) comprises a first ring (1), mobile in rotation with the impeller (3) and a second ring (2), in a fixed position with respect to the case (5), in such a way that the sliding contact between the aforementioned first and second ring (1, 2) allows the dry operation of the centrifugal pump.
EP01204014A 2000-10-23 2001-10-22 Sliding-contact bearing for a centrifugal pump Withdrawn EP1201931A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI002290 2000-10-23
ITMI20002290 IT1319022B1 (en) 2000-10-23 2000-10-23 PROTECTIVE DEVICE FOR CENTRIFUGAL PUMPS WITH VERTICAL AXIS

Publications (2)

Publication Number Publication Date
EP1201931A2 EP1201931A2 (en) 2002-05-02
EP1201931A3 true EP1201931A3 (en) 2005-06-08

Family

ID=11446018

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01204014A Withdrawn EP1201931A3 (en) 2000-10-23 2001-10-22 Sliding-contact bearing for a centrifugal pump

Country Status (2)

Country Link
EP (1) EP1201931A3 (en)
IT (1) IT1319022B1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29503755U1 (en) * 1995-03-08 1995-04-20 Grundfos As Liquid-lubricated axial plain bearing
EP0806579A2 (en) * 1996-05-10 1997-11-12 WILO GmbH Self-aligning axial bearing
US5765950A (en) * 1996-11-29 1998-06-16 Goulds Pumps, Incorporated Thrust bearing assembly
US6106224A (en) * 1998-04-02 2000-08-22 Camco International Inc. Downthrust pads for submersible centrifugal pumps

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29503755U1 (en) * 1995-03-08 1995-04-20 Grundfos As Liquid-lubricated axial plain bearing
EP0806579A2 (en) * 1996-05-10 1997-11-12 WILO GmbH Self-aligning axial bearing
US5765950A (en) * 1996-11-29 1998-06-16 Goulds Pumps, Incorporated Thrust bearing assembly
US6106224A (en) * 1998-04-02 2000-08-22 Camco International Inc. Downthrust pads for submersible centrifugal pumps

Also Published As

Publication number Publication date
IT1319022B1 (en) 2003-09-19
ITMI20002290A1 (en) 2002-04-23
EP1201931A2 (en) 2002-05-02

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