EP0308372A1 - Pompe de circulation, en particulier pour systèmes à eau chaude - Google Patents

Pompe de circulation, en particulier pour systèmes à eau chaude Download PDF

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Publication number
EP0308372A1
EP0308372A1 EP88810614A EP88810614A EP0308372A1 EP 0308372 A1 EP0308372 A1 EP 0308372A1 EP 88810614 A EP88810614 A EP 88810614A EP 88810614 A EP88810614 A EP 88810614A EP 0308372 A1 EP0308372 A1 EP 0308372A1
Authority
EP
European Patent Office
Prior art keywords
shaft
bearing bush
rotor
circulation pump
bearing
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.)
Granted
Application number
EP88810614A
Other languages
German (de)
English (en)
Other versions
EP0308372B1 (fr
Inventor
Paul Akerman
Wolfram Meyer
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.)
Bieri Pumpenbau AG
Original Assignee
Bieri Pumpenbau AG
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 Bieri Pumpenbau AG filed Critical Bieri Pumpenbau AG
Priority to AT88810614T priority Critical patent/ATE62325T1/de
Publication of EP0308372A1 publication Critical patent/EP0308372A1/fr
Application granted granted Critical
Publication of EP0308372B1 publication Critical patent/EP0308372B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F04D13/064—Details of the magnetic circuit
    • 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

Definitions

  • the present invention relates to a circulation pump, in particular for hot water systems, according to the preamble of independent claim 1.
  • the circulation pump 1 comprises a pump housing 2 and a shaft 5 with a rotor 6, which is mounted centrally in the housing in bearing bushes 3 and 4, and has a rotor 6. -weg arrangement 7, 8, an impeller 9 is attached to the shaft. Between the front bearing bush 3 and a part 10 of the shaft 5 which is somewhat widened in this area, two lubricating grooves 11 and 12 are partially overlapping in an area a. Two lubrication grooves 14 and 15 are also provided between the rear part 13 of the shaft 5 and the rear bearing bush 4. The front bearing bush 3 is partially arranged within a bearing cover 16. A can 17 is attached between a bracket 18 of the motor housing 24 and the rear bearing bush 4 and between the rotor 6 and a stator 19.
  • a deflection disk 20 is fitted inside the can 17, in the area between the rear bearing bush 4 and the rotor 6, which is pressed into the can 17.
  • a narrow gap 21 is provided between part of the rear region 13 of the shaft 5 and the deflection disk 20.
  • a device designed as a screw plug 27 for checking the direction of rotation serves to close off the pump on the motor side.
  • FIG. 2 shows a view according to arrow A of FIG. 1 onto the deflection plate 20 with blades 22.
  • FIG. 3 shows a section along line III-III of FIG. 1. From this FIG. It can be seen that longitudinal grooves 23 are provided between the shaft 5 and the rotor.
  • the bearing cover 16 is tight between the front bearing bush 3 and the can 17 used.
  • the water entering the rotor space through the lubrication grooves 11 and 12 after the system has been filled is carried along by the rotating rotor and carried out between the rotor and the can in the direction of the rear bearing.
  • the air compressed in the rotor space passes through the longitudinal grooves 23, 12, 11 into the space 25 between the impeller 9, the pump housing 2 and the can 17 and is carried away in the pumped heating water.
  • the shaft diameter is approximately 0.5 mm smaller than the blade inner diameter of the deflection disk 20, as a result of which a narrow gap is formed between the rear region 13 of the shaft 5 and the rear bearing bush 4.
  • the circulation pump according to the invention also has the advantage, among other things, that the engine compartment is quickly filled with material to be conveyed, and the ventilation system works over the entire range of the pump's characteristic curve.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Cookers (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
EP88810614A 1987-09-15 1988-09-12 Pompe de circulation, en particulier pour systèmes à eau chaude Expired - Lifetime EP0308372B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88810614T ATE62325T1 (de) 1987-09-15 1988-09-12 Umwaelzpumpe insbesondere fuer warmwasseranlagen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH355387 1987-09-15
CH3553/87 1987-09-15

Publications (2)

Publication Number Publication Date
EP0308372A1 true EP0308372A1 (fr) 1989-03-22
EP0308372B1 EP0308372B1 (fr) 1991-04-03

Family

ID=4258472

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88810614A Expired - Lifetime EP0308372B1 (fr) 1987-09-15 1988-09-12 Pompe de circulation, en particulier pour systèmes à eau chaude

Country Status (5)

Country Link
US (1) US4878804A (fr)
EP (1) EP0308372B1 (fr)
AT (1) ATE62325T1 (fr)
DD (1) DD282496A5 (fr)
DE (1) DE3862268D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1719914A3 (fr) * 2000-05-22 2006-11-15 ITT Manufacturing Enterprises, Inc. Pompe centrifuge à accouplement magnétique
LU102208B1 (de) * 2020-11-13 2022-05-17 Wilo Se Selbstentlüftende Nassläuferpumpe

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5604777A (en) * 1995-03-13 1997-02-18 Westinghouse Electric Corporation Nuclear reactor coolant pump
DE19822704B4 (de) * 1998-05-20 2007-01-11 Laing, Oliver Gasabscheidende Brauchwasser-Zirkulationspumpe
US6082976A (en) * 1998-11-18 2000-07-04 Grundfos Manufacturing Corporation Circulating pump
DE19904148C1 (de) * 1999-02-03 2000-10-12 Pierburg Ag Elektrische Förderpumpe
DE10152497A1 (de) * 2001-10-24 2003-05-15 Pierburg Gmbh Nassläuferpumpe
JP5373103B2 (ja) 2008-11-14 2013-12-18 アルフレツド ケルヒヤー ゲーエムベーハー ウント コンパニー カーゲー 高圧洗浄装置
AU2009339812B2 (en) 2009-02-13 2014-01-23 Alfred Karcher Gmbh & Co. Kg Motor pump unit
DE102009010461A1 (de) 2009-02-13 2010-08-19 Alfred Kärcher Gmbh & Co. Kg Motorpumpeneinheit
PL2396550T3 (pl) * 2009-02-13 2014-09-30 Kaercher Gmbh & Co Kg Alfred Zespół motopompy
DE102014209140A1 (de) * 2013-05-23 2014-11-27 Robert Bosch Gmbh Förderaggregat
DE102014219219A1 (de) * 2014-09-24 2016-03-24 Robert Bosch Gmbh Förderaggregat
WO2022135678A1 (fr) * 2020-12-21 2022-06-30 Pierburg Pump Technology Gmbh Pompe à liquide pour automobile électrique dotée d'un piège à particules
WO2024137309A1 (fr) * 2022-12-22 2024-06-27 Schlumberger Technology Corporation Système de pompage submersible à moteur hermétiquement scellé

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1100787B (de) * 1959-01-20 1961-03-02 Poul Due Jensen Schmierung der Lager von elektrischen Spaltrohrmotoren mit Hilfe einer Fluessigkeit, besonders zum Antrieb von Zentrifugal-pumpen
DE1453792B1 (de) * 1964-09-11 1969-09-11 Klein Schanzlin & Becker Ag Einrichtung zur selbsttätigen Erzeugung eines Schmier-,Kühl- und Entlüftungskreislaufes für Kreiselpumpenaggregate
DE1911550A1 (de) * 1969-03-07 1970-09-24 Hanning Elektro Werke Heizungsumwaelzpumpe
DE1956632A1 (de) * 1969-11-11 1971-05-19 Veredlung Gmbh Guss & Stahl Spaltrohrmotor-Kreiselpumpenaggregat
DE2639540A1 (de) * 1976-09-02 1978-03-09 Grundfos As Gleitlagerhuelse fuer die pumpenwelle von umwaelzpumpen fuer heizungs- und brauchwasseranlagen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2844302A (en) * 1958-07-22 Refrigerating apparatus x
US2913988A (en) * 1956-04-06 1959-11-24 Fostoria Corp Motor driven pumps
US3067690A (en) * 1958-12-01 1962-12-11 Kramer Hermann Pump unit with canned electric motor
US3163116A (en) * 1961-08-23 1964-12-29 Hobson Ltd H M Pumps
US3169696A (en) * 1963-01-10 1965-02-16 Whirlpool Co Compressor lubrication means
US3667870A (en) * 1971-01-04 1972-06-06 Matsushita Electric Ind Co Ltd Motor driven pump
DE3538225C2 (de) * 1985-10-26 1997-08-14 Wilo Gmbh Kreiselpumpe oder Lüfter
DE3622269A1 (de) * 1986-07-03 1988-01-14 Richard Halm Spaltrohrmotorpumpe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1100787B (de) * 1959-01-20 1961-03-02 Poul Due Jensen Schmierung der Lager von elektrischen Spaltrohrmotoren mit Hilfe einer Fluessigkeit, besonders zum Antrieb von Zentrifugal-pumpen
DE1453792B1 (de) * 1964-09-11 1969-09-11 Klein Schanzlin & Becker Ag Einrichtung zur selbsttätigen Erzeugung eines Schmier-,Kühl- und Entlüftungskreislaufes für Kreiselpumpenaggregate
DE1911550A1 (de) * 1969-03-07 1970-09-24 Hanning Elektro Werke Heizungsumwaelzpumpe
DE1956632A1 (de) * 1969-11-11 1971-05-19 Veredlung Gmbh Guss & Stahl Spaltrohrmotor-Kreiselpumpenaggregat
DE2639540A1 (de) * 1976-09-02 1978-03-09 Grundfos As Gleitlagerhuelse fuer die pumpenwelle von umwaelzpumpen fuer heizungs- und brauchwasseranlagen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1719914A3 (fr) * 2000-05-22 2006-11-15 ITT Manufacturing Enterprises, Inc. Pompe centrifuge à accouplement magnétique
LU102208B1 (de) * 2020-11-13 2022-05-17 Wilo Se Selbstentlüftende Nassläuferpumpe
EP4001654A1 (fr) * 2020-11-13 2022-05-25 Wilo Se Pompe à rotor noyé à purge automatique

Also Published As

Publication number Publication date
ATE62325T1 (de) 1991-04-15
EP0308372B1 (fr) 1991-04-03
US4878804A (en) 1989-11-07
DD282496A5 (de) 1990-09-12
DE3862268D1 (de) 1991-05-08

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