US3653785A - Pump unit - Google Patents

Pump unit Download PDF

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Publication number
US3653785A
US3653785A US26262A US3653785DA US3653785A US 3653785 A US3653785 A US 3653785A US 26262 A US26262 A US 26262A US 3653785D A US3653785D A US 3653785DA US 3653785 A US3653785 A US 3653785A
Authority
US
United States
Prior art keywords
cooling
liquid
motor
partition
motor housing
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 - Lifetime
Application number
US26262A
Other languages
English (en)
Inventor
Jens Karl Adolf Dahlgren
Bengt-Ake Rudolf Brandt
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.)
Xylem Water Solutions AB
Original Assignee
Stenberg Flygt AB
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 Stenberg Flygt AB filed Critical Stenberg Flygt AB
Application granted granted Critical
Publication of US3653785A publication Critical patent/US3653785A/en
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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets

Definitions

  • a method is also known of arranging a cooling chamber in which oil is cooled and then carried into and through the motor housing.
  • the motor winding is thus cooled through direct contact with the oil.
  • the dirt which can be avoided neither in the motor housing nor in the cooling chamber is carried with the oil into, among other parts, the bearings of the rotor shaft, which are thereby quickly destroyed. Damage also occurs, for example, to the windings if water leaks into the oil which is pumped into the motor housing.
  • the present invention relates to a pump unit with which effective cooling of the pump motor is obtained irrespective of whether it works immersed in liquid or not.
  • the pump unit according to the invention is intended for pumping of preferentially polluted liquid such as sewage water, pulp or the like, and comprises a cooling jacket, at least partially surrounding the pump motor housing, for formation of a cooling liquid compartment, and the invention is characterized chiefly in that the cooling liquid compartment is closed and, by means of a partition extending around the motor housing, is divided into an outer and an inner cooling liquid compartment, the which compartments, at the ends of the partition, viewed in the axial direction of the motor housing, communicate with one another to permit circulation of cooling liquid, so that in the inner cooling liquid compartment the cooling liquid flows along the motor housing in one direction and in the outer compartment in the opposite direction.
  • the cooling liquid compartment is built integral with an oil compartment, which usually exists in immersible pumps, preferentially having cooling fins and being arranged between the pump housing and motor housing and serving for separation of the latter from the pump housing and for lubrication of the sealing rings of the driving shaft.
  • the motor housing is preferentially furnished in the known manner, with cooling fins, the partition consisting of a cupshaped cover passed over these cooling fins, the cover extending into the cooling fluid compartment bounded by the cooling jacket, so that the compartment, as mentioned, is divided into an outer and an inner cooling liquid compartment.
  • the inner compartment consists of a number of channels bounded by the cooling fins and the cover.
  • the bottom of the cupshaped cover has an opening which is concentric with the motor shaft and does not close tightly against any portion of the motor housing.
  • the axial extension of the cover is also chosen so as not to reach furthest into the cooling liquid compartment bounded by the cooling jacket. In this way the cooling liquid is allowed to flow axially on the inside of the cover along the motor housing and thereafter on the outside of the cover in the space bounded by the cover and the cooling jacket.
  • the cooling liquid can circulate by natural circulation, in which case the cooling liquid warmed by the motor flows upwards on the inside of the cover and thereafter, under liberation of heat to the environment, downwards outside the cover.
  • a separate pumping device e.g., an impeller.
  • the cooling jacket is preferentially arranged in the manner that at least part of it is in direct contact with the pumped medium, even if the motor housing is not immersed in it, so ensuring effective cooling of the cooling liquid.
  • the drawing shows a pump unit 1 consisting of a motor housing 2, enclosing an electric motor, and a pump 7.
  • the motor housing 2 is partially surrounded by a cooling jacket 3 and has a number of cooling fins 8.
  • the axial extension of the cover 6 is so chosen that an annular slit 12 is formed at its free end 11 between the cover 6 and the cooling jacket 3.
  • In the bottom 10 of the cover there is also a hole 13 situated concentric with the motor shaft 14, the which hole does not close tightly against any part of the motor housing 2 or the motor shaft 14.
  • the outer 4 and inner cooling liquid compartments in communication with one another are thus entirely shut off from the environment and are not in direct communication with the pumped medium.
  • the cooling liquid which may consist for example of oil
  • the cooling liquid can be made to circulate by natural circulation, as indicated by arrows 15, i.e., upwards in the inner cooling liquid compartment 5 and downwards in the outer cooling liquid compartment 4.
  • an impeller 9 it is advisable to arrange an impeller 9 at a suitable position in one of the cooling liquid compartments.
  • the cooling jacket 3 in such a way that part of it is constantly in contact with the pumped medium, so that the cooling liquid is effectively cooled.
  • an improved closed liquid recirculation cooling system for the motor comprising:
  • a cooling jacket at least partially surrounding the motor housing and defining a closed liquid chamber
  • a partition surrounding the motor housing and positioned within the liquid chamber to define an inner cooling chamber between the motor housing 'and the partition and an outer recirculation chamber between the partition and the cooling jacket, the inner and outer chambers communicating with each other at one end of the partition,
  • a cooling system according to claim 1, wherein the motor housing has cooling fins and the partition comprises a cup shaped cover surrounding the cooling fins.
  • a cooling system according to claim 1, wherein said means for circulating cooling liquid comprises an impeller driven by the motor for providing forced circulation of the cooling liquid.
  • a cooling system according to claim 1 wherein the closed liquid chamber lies adjacent the pump housing at one end whereby the cooling liquid is itself cooled by the liquid being pumped.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Motor Or Generator Frames (AREA)
US26262A 1969-04-18 1970-04-07 Pump unit Expired - Lifetime US3653785A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE05556/69A SE327904B (xx) 1969-04-18 1969-04-18

Publications (1)

Publication Number Publication Date
US3653785A true US3653785A (en) 1972-04-04

Family

ID=20266726

Family Applications (1)

Application Number Title Priority Date Filing Date
US26262A Expired - Lifetime US3653785A (en) 1969-04-18 1970-04-07 Pump unit

Country Status (7)

Country Link
US (1) US3653785A (xx)
JP (1) JPS508161B1 (xx)
CA (1) CA924185A (xx)
DE (1) DE2016493B2 (xx)
FR (1) FR2043252A5 (xx)
GB (1) GB1275863A (xx)
SE (1) SE327904B (xx)

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3942584A (en) * 1971-06-29 1976-03-09 Maschinenfabrik Andritz Actiengesellschaft Hot water pump with cooled sealing housing
US3960467A (en) * 1973-03-07 1976-06-01 International Standard Electric Corporation Cooling device for a pump motor
US4002936A (en) * 1971-10-07 1977-01-11 Nikolaus Laing Electric submersible pump
EP0013869A1 (en) * 1979-01-18 1980-08-06 Itt Industries, Inc. Device for cooling a submersible sealed motor unit
US4597720A (en) * 1979-07-26 1986-07-01 Friedrichs Ingo H Cleaning apparatus for the wet cleaning of building walls and floors, swimming pools, automobiles and the like
US4632643A (en) * 1985-02-14 1986-12-30 Nielsen Axel L Sump pump
US4747757A (en) * 1986-11-26 1988-05-31 Haentjens Walter D Submersible mixing pump
US5215430A (en) * 1992-02-26 1993-06-01 J. C. Carter Company, Inc. Ignition-source free fuel pump
US5375651A (en) * 1991-04-03 1994-12-27 Magnetek Universal Electric Draft inducer blower motor mounting and cooling construction
US5480290A (en) * 1993-06-14 1996-01-02 Wilo Gmbh Submersible motor-driven pump
US5554897A (en) * 1994-04-22 1996-09-10 Baker Hughes Incorporated Downhold motor cooling and protection system
US5616973A (en) * 1994-06-29 1997-04-01 Yeomans Chicago Corporation Pump motor housing with improved cooling means
US5684346A (en) * 1995-11-17 1997-11-04 Itt Flygt Ab Cooling device
US5806560A (en) * 1996-10-22 1998-09-15 J. C. Carter Company, Inc. Aircraft fuel transfer pump with auxiliary fuel line scavenge pump
WO2000007282A1 (en) * 1998-07-28 2000-02-10 Sexton James H Oil cooled motor and pump apparatus
US6095766A (en) * 1998-07-29 2000-08-01 Brown; Albert W. Fuel transfer pump
US7265468B1 (en) * 2005-11-22 2007-09-04 Mancl Dennis J Water repellent motor sleeve
US20110200469A1 (en) * 2010-02-12 2011-08-18 Junya Kawabata Submersible motor pump, motor pump, and tandem mechanical seal
US20130183178A1 (en) * 2010-09-13 2013-07-18 Zenit International S. A. Cooling systems for submersible pumps
CN103244463A (zh) * 2013-05-31 2013-08-14 上海汇森益发工业炉有限公司 多用炉冷却循环风机
US20140010683A1 (en) * 2011-03-31 2014-01-09 Ningbo Jushen Pumps Industry Co., Ltd. Large-scale submersible sewage pump
US20150322966A1 (en) * 2012-12-14 2015-11-12 Xylem Ip Management S.À.R.L. Cooling arrangement of a pump intended for pumping a liquid
US20160032931A1 (en) * 2014-07-29 2016-02-04 Hyundai Motor Company Cooling unit of air compressor for fuel cell vehicle
US10156240B2 (en) 2016-06-16 2018-12-18 Scott C. Mancl Motor-driven fan with trapped adhesive for minimizing vibration
US10267316B1 (en) * 2015-11-03 2019-04-23 Hooker Trust Llc Hi-flow variable speed pump with wireless remote control
FR3101210A1 (fr) * 2019-09-23 2021-03-26 IFP Energies Nouvelles Refroidissement double parois
CN114291505A (zh) * 2021-12-20 2022-04-08 安徽九鲤智能设备有限公司 一种直线电机驱动式窄带分拣机
US20220136510A1 (en) * 2020-11-04 2022-05-05 Gecko Alliance Group Inc. Water-cooled pump assembly for bathing unit system and pump assembly for bathing unit system with mounting brackets
US11808268B2 (en) 2020-10-19 2023-11-07 Milwaukee Electric Tool Corporation Stick pump assembly

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE413540B (sv) * 1976-04-09 1980-06-02 Pumpex Production Ab Pumpaggregat med varierbart varvtal
US4685867A (en) * 1978-09-22 1987-08-11 Borg-Warner Corporation Submersible motor-pump
DE3816652A1 (de) * 1988-05-16 1989-11-30 Magnet Motor Gmbh Elektrische maschine mit fluessigkeitskuehlung
SE521393C2 (sv) 1998-02-25 2003-10-28 Itt Mfg Enterprises Inc Tätningsanordning
SE521394C2 (sv) 1998-05-18 2003-10-28 Itt Mfg Enterprises Inc Tätningsanordning för en dränkbar arbetsmaskin
SE518107C2 (sv) 2000-08-23 2002-08-27 Itt Mfg Enterprises Inc Tätnings- och kylanordning för en dränkbar arbetsmaskin, exempelvis en pump eller omrörare
DE102005034341A1 (de) * 2005-07-22 2007-01-25 Ksb Aktiengesellschaft Tauchmotorpumpe mit Kühlmantel
JP5496699B2 (ja) * 2010-02-12 2014-05-21 株式会社荏原製作所 水中モータポンプ
JP5496700B2 (ja) * 2010-02-12 2014-05-21 株式会社荏原製作所 モータポンプ

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1947179A (en) * 1929-02-21 1934-02-13 Gen Electric Electron discharge apparatus
US1968566A (en) * 1932-11-05 1934-07-31 Continental Oil Co Pump assembly
US2294586A (en) * 1941-08-04 1942-09-01 Del Conveyor & Mfg Company Axial flow fan structure
US2362044A (en) * 1941-12-31 1944-11-07 Rca Corp Cooling system
DE974822C (de) * 1951-06-26 1961-05-04 Emu Unterwasserpumpen G M B H Schlammpumpe
US3135882A (en) * 1961-01-03 1964-06-02 Gen Electric Fan-cooled dynamoelectric machine
US3136258A (en) * 1960-06-08 1964-06-09 Mowid Anstalt Centrifugal pump
US3196940A (en) * 1963-09-03 1965-07-27 Espey Mfg & Electronics Corp Cooling of sealed enclosure

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1947179A (en) * 1929-02-21 1934-02-13 Gen Electric Electron discharge apparatus
US1968566A (en) * 1932-11-05 1934-07-31 Continental Oil Co Pump assembly
US2294586A (en) * 1941-08-04 1942-09-01 Del Conveyor & Mfg Company Axial flow fan structure
US2362044A (en) * 1941-12-31 1944-11-07 Rca Corp Cooling system
DE974822C (de) * 1951-06-26 1961-05-04 Emu Unterwasserpumpen G M B H Schlammpumpe
US3136258A (en) * 1960-06-08 1964-06-09 Mowid Anstalt Centrifugal pump
US3135882A (en) * 1961-01-03 1964-06-02 Gen Electric Fan-cooled dynamoelectric machine
US3196940A (en) * 1963-09-03 1965-07-27 Espey Mfg & Electronics Corp Cooling of sealed enclosure

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3942584A (en) * 1971-06-29 1976-03-09 Maschinenfabrik Andritz Actiengesellschaft Hot water pump with cooled sealing housing
US4002936A (en) * 1971-10-07 1977-01-11 Nikolaus Laing Electric submersible pump
US3960467A (en) * 1973-03-07 1976-06-01 International Standard Electric Corporation Cooling device for a pump motor
EP0013869A1 (en) * 1979-01-18 1980-08-06 Itt Industries, Inc. Device for cooling a submersible sealed motor unit
US4597720A (en) * 1979-07-26 1986-07-01 Friedrichs Ingo H Cleaning apparatus for the wet cleaning of building walls and floors, swimming pools, automobiles and the like
US4632643A (en) * 1985-02-14 1986-12-30 Nielsen Axel L Sump pump
US4747757A (en) * 1986-11-26 1988-05-31 Haentjens Walter D Submersible mixing pump
US5375651A (en) * 1991-04-03 1994-12-27 Magnetek Universal Electric Draft inducer blower motor mounting and cooling construction
US5215430A (en) * 1992-02-26 1993-06-01 J. C. Carter Company, Inc. Ignition-source free fuel pump
USRE35404E (en) * 1992-02-26 1996-12-17 J. C. Carter Company, Inc. Ignition-source free fuel pump
US5480290A (en) * 1993-06-14 1996-01-02 Wilo Gmbh Submersible motor-driven pump
US5554897A (en) * 1994-04-22 1996-09-10 Baker Hughes Incorporated Downhold motor cooling and protection system
US5616973A (en) * 1994-06-29 1997-04-01 Yeomans Chicago Corporation Pump motor housing with improved cooling means
US5684346A (en) * 1995-11-17 1997-11-04 Itt Flygt Ab Cooling device
US5806560A (en) * 1996-10-22 1998-09-15 J. C. Carter Company, Inc. Aircraft fuel transfer pump with auxiliary fuel line scavenge pump
WO2000007282A1 (en) * 1998-07-28 2000-02-10 Sexton James H Oil cooled motor and pump apparatus
US6121698A (en) * 1998-07-28 2000-09-19 Fairbanks Morse Company Oil cooled motor and pump apparatus
US6095766A (en) * 1998-07-29 2000-08-01 Brown; Albert W. Fuel transfer pump
US7265468B1 (en) * 2005-11-22 2007-09-04 Mancl Dennis J Water repellent motor sleeve
WO2011099196A3 (en) * 2010-02-12 2011-10-06 Ebara Corporation Submersible motor pump, motor pump, and tandem mechanical seal
US8491277B2 (en) 2010-02-12 2013-07-23 Ebara Corporation Submersible motor pump, motor pump, and tandem mechanical seal
US20110200469A1 (en) * 2010-02-12 2011-08-18 Junya Kawabata Submersible motor pump, motor pump, and tandem mechanical seal
US20130183178A1 (en) * 2010-09-13 2013-07-18 Zenit International S. A. Cooling systems for submersible pumps
US9297386B2 (en) * 2010-09-13 2016-03-29 Zenit International S.A. Cooling systems for submersible pumps
US9255577B2 (en) * 2011-03-31 2016-02-09 Ningbo Jushen Pumps Industry Co., Ltd. Large-scale submersible sewage pump
US20140010683A1 (en) * 2011-03-31 2014-01-09 Ningbo Jushen Pumps Industry Co., Ltd. Large-scale submersible sewage pump
US10030670B2 (en) * 2012-12-14 2018-07-24 Xylem Ip Management S.À R.L. Cooling arrangement of a pump intended for pumping a liquid
US20150322966A1 (en) * 2012-12-14 2015-11-12 Xylem Ip Management S.À.R.L. Cooling arrangement of a pump intended for pumping a liquid
CN103244463A (zh) * 2013-05-31 2013-08-14 上海汇森益发工业炉有限公司 多用炉冷却循环风机
US9863430B2 (en) * 2014-07-29 2018-01-09 Hyundai Motor Company Cooling unit of air compressor for fuel cell vehicle
US20160032931A1 (en) * 2014-07-29 2016-02-04 Hyundai Motor Company Cooling unit of air compressor for fuel cell vehicle
US10267316B1 (en) * 2015-11-03 2019-04-23 Hooker Trust Llc Hi-flow variable speed pump with wireless remote control
US10480520B2 (en) 2016-06-16 2019-11-19 Scott C. Mancl Motor-driven fan with an assembly for minimizing vibration and strain
US10156240B2 (en) 2016-06-16 2018-12-18 Scott C. Mancl Motor-driven fan with trapped adhesive for minimizing vibration
FR3101210A1 (fr) * 2019-09-23 2021-03-26 IFP Energies Nouvelles Refroidissement double parois
WO2021058265A1 (fr) * 2019-09-23 2021-04-01 IFP Energies Nouvelles Refroidissement double parois
US11808268B2 (en) 2020-10-19 2023-11-07 Milwaukee Electric Tool Corporation Stick pump assembly
US20220136510A1 (en) * 2020-11-04 2022-05-05 Gecko Alliance Group Inc. Water-cooled pump assembly for bathing unit system and pump assembly for bathing unit system with mounting brackets
US11959494B2 (en) * 2020-11-04 2024-04-16 Gecko Alliance Group Inc. Water-cooled pump assembly for bathing unit system and pump assembly for bathing unit system with mounting brackets
CN114291505A (zh) * 2021-12-20 2022-04-08 安徽九鲤智能设备有限公司 一种直线电机驱动式窄带分拣机

Also Published As

Publication number Publication date
GB1275863A (en) 1972-05-24
DE2016493A1 (de) 1970-10-22
JPS508161B1 (xx) 1975-04-02
DE2016493B2 (de) 1971-05-13
SE327904B (xx) 1970-08-31
CA924185A (en) 1973-04-10
FR2043252A5 (xx) 1971-02-12

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