IT1251099B - MOTOR PUMP GROUP - Google Patents

MOTOR PUMP GROUP

Info

Publication number
IT1251099B
IT1251099B ITMI912049A ITMI912049A IT1251099B IT 1251099 B IT1251099 B IT 1251099B IT MI912049 A ITMI912049 A IT MI912049A IT MI912049 A ITMI912049 A IT MI912049A IT 1251099 B IT1251099 B IT 1251099B
Authority
IT
Italy
Prior art keywords
bearing
motor
pump
motor pump
pump group
Prior art date
Application number
ITMI912049A
Other languages
Italian (it)
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 filed Critical
Publication of ITMI912049A0 publication Critical patent/ITMI912049A0/en
Publication of ITMI912049A1 publication Critical patent/ITMI912049A1/en
Application granted granted Critical
Publication of IT1251099B publication Critical patent/IT1251099B/en

Links

Classifications

    • 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
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
    • H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor
    • 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
    • F04D13/0633—Details of the bearings
    • 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
    • F04D29/06—Lubrication
    • F04D29/061—Lubrication especially adapted for liquid pumps
    • 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
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/106—Shaft sealings especially 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
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/124—Sealing of shafts
    • 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

Abstract

Il gruppo motopompa descritto comprende, su un unico albero, il rotore di un motore a tubo di traferro ed una girante di pompa. L'albero comune è supportato fra il motore e la pompa su un primo cuscinetto liscio, attraversato dal mezzo convogliato e, alla sua estremità verso la pompa, su un secondo cuscinetto. Per poter utilizzare un secondo cuscinetto più semplice e proteggerlo dalla parte di portata che si trova nel vano del rotore del motore a tubo di traferro, il vano per questo cuscinetto è chiuso a tenuta rispetto alla parte di portata mediante una schermatura.The motor pump unit described comprises, on a single shaft, the rotor of an air-tube motor and a pump impeller. The common shaft is supported between the motor and the pump on a first smooth bearing, crossed by the conveyed means and, at its end towards the pump, on a second bearing. In order to use a second simpler bearing and protect it from the flow part which is located in the rotor compartment of the air-tube motor, the compartment for this bearing is sealed with respect to the flow part by means of a shield.

ITMI912049A 1990-07-26 1991-07-24 MOTOR PUMP GROUP IT1251099B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4023756A DE4023756C1 (en) 1990-07-26 1990-07-26

Publications (3)

Publication Number Publication Date
ITMI912049A0 ITMI912049A0 (en) 1991-07-24
ITMI912049A1 ITMI912049A1 (en) 1992-01-27
IT1251099B true IT1251099B (en) 1995-05-04

Family

ID=6411056

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI912049A IT1251099B (en) 1990-07-26 1991-07-24 MOTOR PUMP GROUP

Country Status (4)

Country Link
DE (1) DE4023756C1 (en)
FR (1) FR2665222B1 (en)
GB (1) GB2247922B (en)
IT (1) IT1251099B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4304149C1 (en) * 1993-02-12 1994-09-08 Grundfos As Self-priming motor pump unit
FR2803451B1 (en) * 1999-12-30 2002-03-15 Crouzet Automatismes WATERPROOF ROTOR MOTOR WITH BALL BEARING
DE10137885A1 (en) * 2001-08-02 2003-02-20 Wilo Gmbh Canned motor with cover elements
EP3667091B1 (en) * 2018-12-13 2021-08-18 Grundfos Holding A/S Pump assembly

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1153253B (en) * 1956-08-28 1963-08-22 Emerjy Sarl Electric pump for central heating or the like with can
GB1079289A (en) * 1965-04-12 1967-08-16 Porter Co Inc H K Electric motor construction
US3478689A (en) * 1967-08-02 1969-11-18 Borg Warner Circulating pump
GB1194228A (en) * 1967-08-04 1970-06-10 Ass Elect Ind Improvements relating to Pump Assemblies.
US3520642A (en) * 1968-10-29 1970-07-14 Process Ind Inc Motor driven pump
FR2063280A5 (en) * 1969-09-02 1971-07-09 Julien & Mege
US3614261A (en) * 1970-01-09 1971-10-19 Imc Magnetics Corp Bearing seal means for an electrically driven fan
CH532196A (en) * 1970-12-10 1972-12-31 Bieri Pumpenbau Ag Pump and canned motor unit
CH563530A5 (en) * 1973-03-22 1975-06-30 Bbc Sulzer Turbomaschinen
DE3609311A1 (en) * 1986-03-20 1987-10-01 Homa Pumpenfabrik Gmbh Centrifugal pump
GB2200166B (en) * 1986-12-24 1991-08-14 Flux Geraete Gmbh Pump and method for the assembly thereof
EP0275954B1 (en) * 1987-01-21 1991-06-19 Hitachi, Ltd. Mechanical pump equipment
DE3803774A1 (en) * 1988-02-09 1989-08-17 Grundfos Int PUMP UNIT FOR HEATING SYSTEMS
EP0401761B1 (en) * 1989-06-05 1994-11-02 Ebara Corporation Magnet pump

Also Published As

Publication number Publication date
FR2665222B1 (en) 1994-11-10
FR2665222A1 (en) 1992-01-31
GB2247922A (en) 1992-03-18
ITMI912049A0 (en) 1991-07-24
GB2247922B (en) 1994-05-04
DE4023756C1 (en) 1991-12-19
GB9116032D0 (en) 1991-09-11
ITMI912049A1 (en) 1992-01-27

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970429