GB2001806A - Liquid-filled motorised pumps - Google Patents

Liquid-filled motorised pumps

Info

Publication number
GB2001806A
GB2001806A GB787831724A GB7831724A GB2001806A GB 2001806 A GB2001806 A GB 2001806A GB 787831724 A GB787831724 A GB 787831724A GB 7831724 A GB7831724 A GB 7831724A GB 2001806 A GB2001806 A GB 2001806A
Authority
GB
United Kingdom
Prior art keywords
liquid
pump
filled
balance
motorised
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
GB787831724A
Other versions
GB2001806B (en
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.)
Loewe Pumpenfabrik GmbH
Original Assignee
Loewe Pumpenfabrik GmbH
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 Loewe Pumpenfabrik GmbH filed Critical Loewe Pumpenfabrik GmbH
Publication of GB2001806A publication Critical patent/GB2001806A/en
Application granted granted Critical
Publication of GB2001806B publication Critical patent/GB2001806B/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)
  • Centrifugal Separators (AREA)

Abstract

In a motor-driven pump of canned-motor construction with a liquid-filled rotor chamber 11, which is hermetically sealed relative to the pump chamber 10 with the exception of a balance opening, e.g. in the form of a spiral or helical duct 12, the length dimension of the balance opening between the pump and rotor chambers in the direction of flow of the balance liquid is larger than its greatest dimension in the direction at right angles thereto and the volume of the balance opening is greater than the greatest flow volume between the pump and rotor chambers as a result in fluctuations of temperature in the liquid of the pump and rotor chambers and changes in the operating pressure. <IMAGE>
GB787831724A 1977-07-30 1978-07-28 Motor driven pumps Expired GB2001806B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772734558 DE2734558A1 (en) 1977-07-30 1977-07-30 CANNED MOTOR PUMP

Publications (2)

Publication Number Publication Date
GB2001806A true GB2001806A (en) 1979-02-07
GB2001806B GB2001806B (en) 1982-01-20

Family

ID=6015317

Family Applications (1)

Application Number Title Priority Date Filing Date
GB787831724A Expired GB2001806B (en) 1977-07-30 1978-07-28 Motor driven pumps

Country Status (7)

Country Link
BE (1) BE869350A (en)
DE (1) DE2734558A1 (en)
FR (1) FR2398902A1 (en)
GB (1) GB2001806B (en)
IT (1) IT1103043B (en)
NL (1) NL7807992A (en)
SE (1) SE7807703L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2201844A (en) * 1987-02-04 1988-09-07 Associated Electric Ind Limite 'Canned' rotor for electric motors used with pumps

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB854165A (en) * 1956-03-17 1960-11-16 Siemens Ag Improvements in or relating to electric motor and pump assemblies
US3121396A (en) * 1959-11-17 1964-02-18 Hollesens Fabrikker As H Electric motor-driven liquid pumps
DE1908237A1 (en) * 1969-02-19 1970-09-10 Hanning Elektro Werke Heating circulation pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2201844A (en) * 1987-02-04 1988-09-07 Associated Electric Ind Limite 'Canned' rotor for electric motors used with pumps

Also Published As

Publication number Publication date
DE2734558A1 (en) 1979-02-15
NL7807992A (en) 1979-02-01
GB2001806B (en) 1982-01-20
BE869350A (en) 1978-11-16
SE7807703L (en) 1979-01-31
IT1103043B (en) 1985-10-14
FR2398902B3 (en) 1981-03-20
IT7805231A0 (en) 1978-07-25
FR2398902A1 (en) 1979-02-23

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee