GB2001806A - Liquid-filled motorised pumps - Google Patents
Liquid-filled motorised pumpsInfo
- 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
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>
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)
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)
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 |
-
1977
- 1977-07-30 DE DE19772734558 patent/DE2734558A1/en not_active Ceased
-
1978
- 1978-07-11 SE SE7807703A patent/SE7807703L/en unknown
- 1978-07-25 IT IT05231/78A patent/IT1103043B/en active
- 1978-07-27 NL NL787807992A patent/NL7807992A/en not_active Application Discontinuation
- 1978-07-28 FR FR7822383A patent/FR2398902A1/en active Granted
- 1978-07-28 BE BE189565A patent/BE869350A/en unknown
- 1978-07-28 GB GB787831724A patent/GB2001806B/en not_active Expired
Cited By (1)
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 |