GB1315032A - Arrangement for the evacuation of air from canned motor pumps - Google Patents

Arrangement for the evacuation of air from canned motor pumps

Info

Publication number
GB1315032A
GB1315032A GB3167070A GB3167070A GB1315032A GB 1315032 A GB1315032 A GB 1315032A GB 3167070 A GB3167070 A GB 3167070A GB 3167070 A GB3167070 A GB 3167070A GB 1315032 A GB1315032 A GB 1315032A
Authority
GB
United Kingdom
Prior art keywords
rotor
duct
valve
air
rotor space
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
GB3167070A
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 GB1315032A publication Critical patent/GB1315032A/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

1315032 Electric motors LOEWE PUMPENFABRIK GmbH 30 June 1970 [22 July 1969] 31670/70 Heading H2A In a motor-pump assembly, particularly for circulating water in central heating systems, in which the motor is of the "canned" rotor type, air is extracted from the rotor space through a duct 18 in the rotor shaft which is closable by a valve 19 actuated automatically by the liquid when the rotor space is full to prevent further blow from the rotor chamber and the risk of impurities being carried through the bearings to the rotor chamber. The duct 18 communicates with the rotor space by a radial passage 20, Fig. 4 and the valve 19 may comprise a strip of resilient material such as rubber or plastics material clipped round the shaft by a spring 25 and having a free end which is pressed over the passage 20 by water pressure as the rotor space fills. Alternatively the valve may comprise a spiral spring or a ball (24), Fig. 8 (not shown), co-operating with an aperture (23) in a cap (22) at the impeller end of the duct 18.
GB3167070A 1969-07-22 1970-06-30 Arrangement for the evacuation of air from canned motor pumps Expired GB1315032A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691937120 DE1937120A1 (en) 1969-07-22 1969-07-22 Vent valve for canned motor pumps

Publications (1)

Publication Number Publication Date
GB1315032A true GB1315032A (en) 1973-04-26

Family

ID=5740493

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3167070A Expired GB1315032A (en) 1969-07-22 1970-06-30 Arrangement for the evacuation of air from canned motor pumps

Country Status (4)

Country Link
DE (1) DE1937120A1 (en)
FR (1) FR2055025A5 (en)
GB (1) GB1315032A (en)
NL (1) NL7010786A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112554292A (en) * 2020-11-26 2021-03-26 赛默（厦门）智能科技有限公司 Miniature water pump, closestool flushing system and closestool

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK164234C (en) * 1985-06-14 1992-10-26 Licentia Gmbh CIRCULATION PUMP
DK155231C (en) * 1986-05-12 1989-07-17 Grundfos Int SPALTE CANE MOTOR PUMP
DE102005038103A1 (en) * 2005-08-10 2007-02-22 Cremer Energiesparcenter Gmbh & Co.Kg Heating pump used in a heating system comprises an automatic ventilation unit arranged in a shaft testing and ventilation opening of a pump housing
DE102012203615B4 (en) * 2012-03-07 2013-11-21 Hanning Elektro-Werke Gmbh & Co. Kg pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112554292A (en) * 2020-11-26 2021-03-26 赛默（厦门）智能科技有限公司 Miniature water pump, closestool flushing system and closestool

Also Published As

Publication number Publication date
NL7010786A (en) 1971-01-26
FR2055025A5 (en) 1971-05-07
DE1937120A1 (en) 1971-04-08

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees