EP0070438A1 - Pompe centrifuge in-line - Google Patents

Pompe centrifuge in-line Download PDF

Info

Publication number
EP0070438A1
EP0070438A1 EP82105908A EP82105908A EP0070438A1 EP 0070438 A1 EP0070438 A1 EP 0070438A1 EP 82105908 A EP82105908 A EP 82105908A EP 82105908 A EP82105908 A EP 82105908A EP 0070438 A1 EP0070438 A1 EP 0070438A1
Authority
EP
European Patent Office
Prior art keywords
inlet
outlet
centrifugal pump
axis
flow
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.)
Ceased
Application number
EP82105908A
Other languages
German (de)
English (en)
Inventor
Karsten Laing
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0070438A1 publication Critical patent/EP0070438A1/fr
Ceased legal-status Critical Current

Links

Images

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
    • F04D29/046—Bearings
    • F04D29/0467—Spherical bearings
    • 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
    • F04D13/0633—Details of the bearings
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4293—Details of fluid inlet or outlet

Definitions

  • the invention relates to centrifugal pumps in which the inlet and outlet openings are opposite one another.
  • the simplest types of centrifugal pumps have an inlet opening at the suction opening of the rotor and thus in an extension of the pump axis, while the outlet nozzle emerges tangentially from the volute casing.
  • This arrangement not only leads to a perpendicular deflection of the delivery flow but also to an offset of the inlet and outlet lines to one another.
  • a modified form are spiral housings, in which the inlet and outlet lines are in the same plane as the axis of the pump.
  • In-line designs are particularly common in heating pumps, in which the inlet and outlet connections are opposite one another and are perpendicular to the pump axis.
  • the disadvantage of this embodiment is that the distance between the connecting pieces is comparatively large.
  • a third variant has been added to the shaft-sealed centrifugal pumps and the canned pumps, centrifugal pumps driven by a pole ring, which is hermetically separated from the drive device, a stator or a circumferential magnetic ring by a spherical partition.
  • the rotors of these pumps no longer have shafts but form them with a pole ring with a spherical surface and are only supported by a ball and a spherical pan.
  • These supports are particularly suitable for pumps with a vertical axis, since the supporting bearing of the entire periphery is then evenly loaded.
  • the invention relates to in-line pumps in which the axes of the inlet and outlet ports and the pump rotor lie in one plane and run parallel to one another.
  • This arrangement makes pumps with extremely short installation dimensions between the inlet and outlet connections possible.
  • this principle enables the vertical arrangement of the pump axis in heating pumps, in which the flow rate is generally vertical.
  • FIG. 1a shows the view of a pump according to the invention, in which the flow according to arrow (1) enters, enters the impeller through the intake manifold (2) and leaves the pump again through the spiral housing (3) according to arrow (4). Due to the arrangement according to the invention, the distance (5) between the inlet flange (6) and the outlet flange (6 ') can be selected to be extremely small.
  • Figure 1b shows the pump in plan view.
  • FIG. 2a shows a pump according to the invention with a spherical motor in section.
  • the inlet stream (20) which leads via the channel (21) into the rotor mouth (22), intersect with the outlet stream, which leaves the volute casing (23) through the outlet line (24).
  • the flow is then passed through a valve opening (25) which is kept closed by a valve plate (26) which is articulated on a spring (27).
  • the outlet line (28) is expanded in the area of the valve plate. The flow leaves the pump according to arrow (29).
  • the motor (30) is arranged vertically with the stator (31) pointing downwards, the otherwise necessary equality of weight between the pole ring region (32) and the paddle wheel (33), which is necessary in the case of spherical motors, is based on the support surface between the bearing ball (34) and the Bearing pan (36) not required.
  • the bearing ball (34) is in contact with the bearing pan (36) along the entire periphery (35), which enables practically wear-free operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP82105908A 1981-07-17 1982-07-02 Pompe centrifuge in-line Ceased EP0070438A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813128305 DE3128305A1 (de) 1981-07-17 1981-07-17 In-line-kreiselpumpe
DE3128305 1981-07-17

Publications (1)

Publication Number Publication Date
EP0070438A1 true EP0070438A1 (fr) 1983-01-26

Family

ID=6137153

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82105908A Ceased EP0070438A1 (fr) 1981-07-17 1982-07-02 Pompe centrifuge in-line

Country Status (3)

Country Link
US (1) US4462752A (fr)
EP (1) EP0070438A1 (fr)
DE (1) DE3128305A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4728268A (en) * 1984-11-02 1988-03-01 Karsten Laing Rotodynamic pump
GB2249135A (en) * 1990-10-03 1992-04-29 Mars G B Ltd A centrifugal impeller
GB2272023B (en) * 1992-10-31 1996-05-01 Caradon Mira Ltd Improvements in or relating to ablutionary installations
US5520507A (en) * 1994-05-06 1996-05-28 Ingersoll-Rand Company Method and apparatus to achieve passive damping of flow disturbances in a centrifugal compressor to control compressor surge
DE19855845A1 (de) * 1998-12-03 2000-06-08 Gep Umwelttechnik Gmbh Selbstansaugendes Motorpumpenaggregat
DE102005039557A1 (de) * 2005-08-22 2007-03-01 Robert Bosch Gmbh Kreiselpumpe

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB522743A (en) * 1938-12-14 1940-06-26 John Southern Improvements in and relating to rotary pump installations
US3649137A (en) * 1970-11-30 1972-03-14 Nikolaus Laing Centrifugal pump with magnetic coupling
FR2162869A5 (fr) * 1971-10-25 1973-07-20 Pettersson Carl
FR2203446A5 (fr) * 1972-09-13 1974-05-10 Vortex Pumpen Ag

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1644129A (en) * 1927-03-26 1927-10-04 Byron Jackson Pump Mfg Co Multistage balanced pump
US3485371A (en) * 1968-01-05 1969-12-23 Lawler Automatic Controls Inc Valve assembly
AT305778B (de) * 1970-09-11 1973-03-12 Standard Magnet Ag Kreiselpumpe
US4043706A (en) * 1973-06-05 1977-08-23 Alan John Walker Bearing support structure for electro-magnet driven pump
US3877845A (en) * 1973-06-28 1975-04-15 Acf Ind Inc Electric in-tank fuel pump
CH583856A5 (fr) * 1974-09-27 1977-01-14 Balzers Patent Beteilig Ag
AT335563B (de) * 1975-01-13 1977-03-25 Vortex Gmbh Dt Pumpen-motor-einheit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB522743A (en) * 1938-12-14 1940-06-26 John Southern Improvements in and relating to rotary pump installations
US3649137A (en) * 1970-11-30 1972-03-14 Nikolaus Laing Centrifugal pump with magnetic coupling
FR2162869A5 (fr) * 1971-10-25 1973-07-20 Pettersson Carl
FR2203446A5 (fr) * 1972-09-13 1974-05-10 Vortex Pumpen Ag

Also Published As

Publication number Publication date
US4462752A (en) 1984-07-31
DE3128305A1 (de) 1983-02-03

Similar Documents

Publication Publication Date Title
DE69914134T2 (de) Laufrad
DE2246265A1 (de) Pumpe mit taumelbarem laeufer
DE2436635A1 (de) Hydraulische maschine
EP0487538A1 (fr) Dispositif de chauffage de l'interieur de vehicules a moteur.
EP0070438A1 (fr) Pompe centrifuge in-line
EP0607515A1 (fr) Pompe à air entraîné électriquement
DE4039712C2 (de) Peripheralpumpe
DE112019003659T5 (de) Elektrischer Kompressor
DE2853744A1 (de) Unterwassermotorpumpe
EP0561864B1 (fr) Ventilateur radial
DE69926144T2 (de) Motorgetriebene brennstoffpumpe
DE2409857B2 (de) Turbomolekularvakuumpumpe mit zumindest teilweise glockenfoermig ausgebildetem rotor
EP0204170B1 (fr) Dispositif pour le transport d'eaux usées
DE69414344T2 (de) Seitenströmungspumpe
DE4128150A1 (de) Saugmaschine, insbesondere fuer dentalen einsatz
DE4423149C2 (de) Mehrstufige Freistrompumpe
DE3631710A1 (de) Umschlagbare motor-pumpen-einheit
EP1039140A2 (fr) Pompe d'alimentation
CH637185A5 (en) Centrifugal pump
WO2009043765A1 (fr) Pompe à carburant destinée à transporter du carburant d'un réservoir vers un moteur à combustion interne
DE3335388C2 (fr)
DE3314651C2 (de) Vakuumpumpe
EP0990799A1 (fr) Pompe de refroidissement à eau
DE60026490T2 (de) Hochdruckkreiselpumpe
DE2724021A1 (de) Radialluefter fuer antriebe mit wechselnder drehrichtung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): FR GB IT

17P Request for examination filed

Effective date: 19830712

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19880118