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GB1236441A - Improvements in or relating to liquid pumps - Google Patents

Improvements in or relating to liquid pumps

Info

Publication number
GB1236441A
GB1236441A GB2036868A GB2036868A GB1236441A GB 1236441 A GB1236441 A GB 1236441A GB 2036868 A GB2036868 A GB 2036868A GB 2036868 A GB2036868 A GB 2036868A GB 1236441 A GB1236441 A GB 1236441A
Authority
GB
United Kingdom
Prior art keywords
chamber
impeller
rotor
partition
passage
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
Application number
GB2036868A
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.)
Grundfos AS
Original Assignee
Grundfos AS
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 Grundfos AS filed Critical Grundfos AS
Publication of GB1236441A publication Critical patent/GB1236441A/en
Expired 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
    • 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
    • F04D13/0613—Special connection between the rotor compartments

Landscapes

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

Abstract

1,236,441. Electric motor driven centrifugal pumps. GRUNDFOS A.S. 30 April, 1968 [5 May, 1967], No. 20368/68. Heading H2A. An electric motor-driven pump has rotor 16 enclosed within can 12 with a partition 13 separating the rotor chamber 11 from the impeller chamber 5. The pumped liquid fills chamber 11 by leakage. flow through shaft bearings 14, 15 mounted on partition 13. The liquid can fill the other rotor end chamber by flow through passage 16. A passage 18 is provided in shaft 9 which interconnects chamber 11 with a suction region of the impeller through either hole 19 or hole 19<SP>1</SP>. These holes communicate with the impeller through holes 20, 21 to provide the required suction. This arrangement is stated to provide for removal of air on filling and slight liquid circulation around the bearing assembly.
GB2036868A 1967-05-05 1968-04-30 Improvements in or relating to liquid pumps Expired GB1236441A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK238567A DK132807C (en) 1967-05-05 1967-05-05 BAG PUMP, ISER CIRCULATION PUMP FOR CENTRAL HEATING SYSTEM

Publications (1)

Publication Number Publication Date
GB1236441A true GB1236441A (en) 1971-06-23

Family

ID=8112019

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2036868A Expired GB1236441A (en) 1967-05-05 1968-04-30 Improvements in or relating to liquid pumps

Country Status (4)

Country Link
DE (1) DE1703266B2 (en)
DK (1) DK132807C (en)
FR (1) FR1560986A (en)
GB (1) GB1236441A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3517499A1 (en) * 1985-05-15 1986-11-20 Klein, Schanzlin & Becker Ag, 6710 Frankenthal WHEEL
DE3839190C1 (en) * 1988-11-18 1990-04-19 Ksb Aktiengesellschaft, 6710 Frankenthal, De
DE19743062A1 (en) * 1997-09-30 1999-04-01 Wilo Gmbh Air separation device

Also Published As

Publication number Publication date
FR1560986A (en) 1969-03-21
DK132807C (en) 1976-07-12
DE1703266A1 (en) 1972-01-13
DE1703266B2 (en) 1975-06-26
DK132807B (en) 1976-02-09

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