US3476054A - Pump - Google Patents

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Publication number
US3476054A
US3476054A US702675A US3476054DA US3476054A US 3476054 A US3476054 A US 3476054A US 702675 A US702675 A US 702675A US 3476054D A US3476054D A US 3476054DA US 3476054 A US3476054 A US 3476054A
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US
United States
Prior art keywords
pump
rotor
stator
shaft
turbine
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
US702675A
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English (en)
Inventor
Jean Gangloff
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3476054A publication Critical patent/US3476054A/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
    • 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
    • F04D13/0666—Units comprising pumps and their driving means the pump being electrically driven the motor being of the plane gap type
    • 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
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/128—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs
    • H02K5/1282—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs the partition wall in the air-gap being non cylindrical

Definitions

  • the present invention relates to a glandless pump driven by a motor known as the plane-gap type and an object of the invention is to provide such a pump in which the circulation of hot fluids loaded with impurities can be effected without adverse elfect on the pump.
  • the rotor upon each starting and stopping of the motor, is driven from one side to the other in the space in which it turns, thus producing an undesirable knocking noise.
  • An object of the present invention is to provide a novel acceleration pump which is primarily designed as a hotwater central-heating pump in which the above-mentioned disadvantages are substantially eliminated.
  • This pump is characterized essentially by the arrangement wherein its rotor is mounted alongside the stator, at that end of a hollow shaft oposite the one on which the turbine is mounted.
  • a journal bearing is located inside of the stator and is protected against the impurities carried by the circulating fluid.
  • a portion of the fluid lubricates the journal bearing and the fluid is purified by centrifugation by the action of small counter-blades carried by the turbine before reaching the journal hearing, the fluid returning through the hollow shaft into the spiral chamber of the turbine.
  • the magnetic attraction acts in the same direction as the hydraulic thrust. Both while stopped and in operation, the rotor always abuts against a single thrust bearing.
  • FIGURE 1 is a sectional view of a first embodiment of a pump according to the invention; and, FIGURES 2, 3 and 4 are sectional views of respective modifications of the pump of FIG. 1.
  • FIG. 1 shows a pump which comprises a bearing frame 1 in which are housed a stator 2 and a single journal bearing 3 constructed of a material that can be lubricated by the conveyed fluid, for example, graphite, bronze, plastic, or ceramic material.
  • the journal bearing 3 can be either forcibly fitted or mounted elastically in the bearing frame 1 by means of elastic rings made, for example, of rubber.
  • the journal bearing 3 is traversed by a hollow shaft 4 which has only one bearing surface, which is easily adjustable.
  • the hollow shaft 4 is equipped with a clack valve 18 at one of its extremities.
  • a rotor 5 equipped with a friction lug 6 which has been forcibly fitted on the shaft 4 and a sealed joint 10.
  • the rotor turns in the chamber of a rear cowling 15, which is fastened to the bearing frame 1 by means of screws 17.
  • a seal is formed between cowling 15 and frame 1 by a joint 9.
  • the center section of the hollow shaft 4 turns in the journal bearing 3, which can, if so desired, be hollowed out in its center section so as to reduce the losses through friction.
  • the stator is isolated from the circulating fluid by means of a washer 8 of stainless steel and is sealed by joints 9 and 10.
  • the rotor 5 In order to prevent oxidation of the rotor 5, in the case of installations containing copper piping, the rotor 5 is enclosed in jackets 11 and 12, made of copper or stainless steel, and welded together at 13 and 14 onset in place.
  • the packet 12 will be thin, in order to form a minimum electric gap.
  • the main portion of the liquid flows through the turbine, while a small portion follows the path indicated by the arrows F in FIG. 1 to lubricate the journal bearing.
  • the eventual unblocking operation of the rotatable elements does not required the use of a separate device apart from the apparatus. Without having to empty the installation, it is sufficient to remove the rear cowling 15 by unscrewing the screws 17. At this moment, the water pressure applies the turbine wheel 7 against the journal bearing 3, and the clack valve 18 closes. Since the rotor 5 is then open to the air, it is sufficient to turn the rotor alternately in each direction in order to unblock the rotatable elements.
  • the thrust due to the magnetic attraction acts in the same direction as the hydraulic thrust.
  • the turbine wheel 7 is equipped with small counter-blades 19; these counter-blades also provide the advantage that they centrifuge the impurities suspended in the fluid and prevent them from penetrating into the journal bearing 3.
  • housing 20 has a skirt'21 to which the cowling 15 .is,
  • the bearing frarfie 1 is fastened to the spiral housing by means of the screws 22.
  • the pump shown in FIG. 3 differs from that in FIG. 1 'by'the'fact that the stator and rotor are no longer isolated from the circulating fluid.
  • the washer 8, the joint 10, the jacket 11 and 12, and the welds 13 and 14 are eliminated.
  • the stator 2 and the rotor are made of magnetic stainless steel.
  • the coils 23 of the stator, before bein'g set in place, are enveloped in a plastic resin 24 for example, a silicon elastomer which is waterproof and impervious to hot water.
  • the outlet wires are insulated in silicone rubber so as to insure perfect adherence to the covering. These wires pass to the exterior through a seal, such as a stufling box or similar means.
  • the cage of the motor 25 can be made of aluminum or cast copper.
  • the skirt 21 of the spiral housing 20 of FIG. 3 is eliminated, and instead ajde'ep cowling 26 is mounted on the spiral housing 20 by means of the screws 27.
  • a pump comprising a hollow rotatable shaft having opposite ends; a turbine at one end of the shaft including a turbine wheel mounted on said shaft at said one end thereof; a journal bearing rotatably supporting said shaft; a motor stator mounted on said journal bearing and externally covering the same; and 'a rotor mounted on the other end of the shaft and positioned adjacent said stator in axially spaced relation therefrom, said shaft having a clearance in said journal hearing such that while a. major portion of the circulating fluid passes through .the turbine a minor portion passes between the shaft and the bearing and then between the rotor and stator after which it returns to the turbine through the hollow shaft.
  • a pump as claimed in claim 1 comprising valve means in said hollow shaft.
  • a pump as claimed in claim 1 comprising a frame in which the stator is housed, said frame including a central core portion encircling the journal bearing.
  • a pump as claimed in claim 5 comprising a partition means between said cowling and the frame for isolating said stator from the fluid.
  • a pump as claimed in claim 1 comprising jacket means covering the rotor to protect the same against the circulating fluid.
  • a pump as claimed in claim 3 comprising a cowling encircling the rotor, said turbine including a spiral housing with a skirt, said cowling being detachably connected to said skirt.
  • a pump as claimed in claim 3 comprising a cowling encircling the rotor, said turbine including a spiral housing surrounding the turbine wheel, said cowling including an elongated flange portion in sealed relation with said spiral housing and detachably connected thereto.
  • stator and rotor are constituted of stainless steel material, said stator including coils and an enveloping insulating material on said coils, said insulating material being resistant to the circulating fluid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US702675A 1967-04-24 1968-02-02 Pump Expired - Lifetime US3476054A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR103990A FR1528733A (fr) 1967-04-24 1967-04-24 Pompe d'accélération sans presse-étoupe, avec moteur du type dit à <<entrefer plan>>, pour installation de chauffage central à eau chaude

Publications (1)

Publication Number Publication Date
US3476054A true US3476054A (en) 1969-11-04

Family

ID=8629535

Family Applications (1)

Application Number Title Priority Date Filing Date
US702675A Expired - Lifetime US3476054A (en) 1967-04-24 1968-02-02 Pump

Country Status (6)

Country Link
US (1) US3476054A (en:Method)
BE (1) BE714076A (en:Method)
DE (1) DE1653717A1 (en:Method)
ES (1) ES351348A1 (en:Method)
FR (1) FR1528733A (en:Method)
GB (1) GB1208661A (en:Method)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3560823A (en) * 1968-11-07 1971-02-02 Whirlpool Co Low profile motor pump structure
US3922574A (en) * 1974-04-04 1975-11-25 Gen Electric Permanent magnet hermetic synchronous motor
US4311937A (en) * 1974-07-25 1982-01-19 Sealed Motor Construction Co. Ltd. Axial gap electric motors
RU2129669C1 (ru) * 1998-06-24 1999-04-27 Общество с ограниченной ответственностью "Фирма АГРОИНЖСТРОЙ" Бессальниковый электронасос с вентильным двигателем постоянного тока
RU2175408C1 (ru) * 2000-03-27 2001-10-27 Орловский государственный технический университет Моноблочный центробежный электронасос
RU2284426C1 (ru) * 2005-04-20 2006-09-27 Государственное образовательное учреждение высшего профессионального образования "Кубанский государственный технологический университет" (ГОУВПО "КубГТУ") Аксиальный центробежный двигатель-насос
RU2384743C1 (ru) * 2008-10-15 2010-03-20 Государственное образовательное учреждение высшего профессионального образования "Орловский государственный технический университет" (ОрелГТУ) Центробежный моноблочный электронасос для перекачки агрессивных жидкостей
CN102444611A (zh) * 2010-10-15 2012-05-09 长沙理工大学 一种离心泵
CN103527521A (zh) * 2013-09-30 2014-01-22 华中科技大学 喷水推进泵
CN105464922A (zh) * 2015-12-08 2016-04-06 重庆艾铭玛机械制造有限公司 一种耐腐蚀防爆水泵
WO2020117485A3 (en) * 2018-12-04 2020-07-30 Gates Corporation Axial flux motor water pump

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3738592C1 (en) * 1987-11-13 1989-05-24 Licentia Gmbh Electric motor for driving a liquid pump, and a method for its production
US6012909A (en) * 1997-09-24 2000-01-11 Ingersoll-Dresser Pump Co. Centrifugal pump with an axial-field integral motor cooled by working fluid
DE102009040123A1 (de) 2008-11-06 2010-05-20 Siemens Aktiengesellschaft Kurzschlussläufer, Asynchronmotor und Strömungsmaschine
GB2508026B (en) * 2012-11-20 2015-11-11 Ashwoods Automotive Ltd Axial flux electrical machines
CN113738657B (zh) * 2021-11-03 2022-03-15 西安泵阀总厂有限公司 稀土永磁电机驱动离心泵及自润滑方法
KR20230086165A (ko) * 2021-12-08 2023-06-15 현대자동차주식회사 전동식 워터 펌프

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2846951A (en) * 1955-09-13 1958-08-12 Emerjy Soc Circulator
CH394811A (de) * 1962-03-23 1965-06-30 E M B Elektromotorenbau Ag Umwälzpumpe
US3194165A (en) * 1962-02-28 1965-07-13 Sorlin Nils Electric motor pump

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2846951A (en) * 1955-09-13 1958-08-12 Emerjy Soc Circulator
US3194165A (en) * 1962-02-28 1965-07-13 Sorlin Nils Electric motor pump
CH394811A (de) * 1962-03-23 1965-06-30 E M B Elektromotorenbau Ag Umwälzpumpe

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3560823A (en) * 1968-11-07 1971-02-02 Whirlpool Co Low profile motor pump structure
US3922574A (en) * 1974-04-04 1975-11-25 Gen Electric Permanent magnet hermetic synchronous motor
US4311937A (en) * 1974-07-25 1982-01-19 Sealed Motor Construction Co. Ltd. Axial gap electric motors
RU2129669C1 (ru) * 1998-06-24 1999-04-27 Общество с ограниченной ответственностью "Фирма АГРОИНЖСТРОЙ" Бессальниковый электронасос с вентильным двигателем постоянного тока
RU2175408C1 (ru) * 2000-03-27 2001-10-27 Орловский государственный технический университет Моноблочный центробежный электронасос
RU2284426C1 (ru) * 2005-04-20 2006-09-27 Государственное образовательное учреждение высшего профессионального образования "Кубанский государственный технологический университет" (ГОУВПО "КубГТУ") Аксиальный центробежный двигатель-насос
RU2384743C1 (ru) * 2008-10-15 2010-03-20 Государственное образовательное учреждение высшего профессионального образования "Орловский государственный технический университет" (ОрелГТУ) Центробежный моноблочный электронасос для перекачки агрессивных жидкостей
CN102444611A (zh) * 2010-10-15 2012-05-09 长沙理工大学 一种离心泵
CN103527521A (zh) * 2013-09-30 2014-01-22 华中科技大学 喷水推进泵
CN103527521B (zh) * 2013-09-30 2016-04-27 华中科技大学 喷水推进泵
CN105464922A (zh) * 2015-12-08 2016-04-06 重庆艾铭玛机械制造有限公司 一种耐腐蚀防爆水泵
WO2020117485A3 (en) * 2018-12-04 2020-07-30 Gates Corporation Axial flux motor water pump

Also Published As

Publication number Publication date
FR1528733A (fr) 1968-06-14
ES351348A1 (es) 1969-06-01
BE714076A (en:Method) 1968-09-16
DE1653717A1 (de) 1971-04-15
GB1208661A (en) 1970-10-14

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