EP1468189B1 - Pumpe mit einen antriebsmotor durchsetzender pumpenwelle - Google Patents

Pumpe mit einen antriebsmotor durchsetzender pumpenwelle Download PDF

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Publication number
EP1468189B1
EP1468189B1 EP03731690A EP03731690A EP1468189B1 EP 1468189 B1 EP1468189 B1 EP 1468189B1 EP 03731690 A EP03731690 A EP 03731690A EP 03731690 A EP03731690 A EP 03731690A EP 1468189 B1 EP1468189 B1 EP 1468189B1
Authority
EP
European Patent Office
Prior art keywords
pump
shaft
housing
motor housing
pump according
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
EP03731690A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1468189A1 (de
Inventor
Manfred Britsch
Michael Matros
Markus Wucher
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.)
Allweiler GmbH
Original Assignee
Allweiler AG
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 Allweiler AG filed Critical Allweiler AG
Publication of EP1468189A1 publication Critical patent/EP1468189A1/de
Application granted granted Critical
Publication of EP1468189B1 publication Critical patent/EP1468189B1/de
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
    • 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
    • F04D29/588—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps cooling or heating the machine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D3/00—Axial-flow pumps
    • F04D3/02—Axial-flow pumps of screw type

Definitions

  • the invention relates to a pump with the rotor of a motor housing arranged in a drive motor - and outside the shaft bearing - passing through the pump shaft which is provided endwise with a blades having impeller, according to the preamble of claim 1.
  • Such a pump is the FR-A-2 222 885 refer to.
  • a pump impeller is shown consisting of a conically tapered impeller body and radially projecting from the outer surface blades.
  • the base surface of the impeller body faces a radial end surface of the motor housing.
  • the motor housing is laterally connected to a pump housing and contains - on both sides of the drive motor - each have a shaft bearing with a shaft journal surrounding sleeve and the bearing encircling O-ring. Between the drive motor passing through the area of the pump shaft and the shaft bearing a disc is mounted in each case.
  • One end of the pump shaft carries the rotatable pump housing in the pump impeller whose circumference rotates in the region of the pressure side of the pump housing and which opens concentrically to the suction side.
  • the superimposed bearing parts of the pump shaft and the pump housing are made of sintered material (alpha-aluminum oxide) of high purity, which is particularly suitable for use in glandless heating circulation pumps.
  • the inventor has set the goal of creating a novel concept of a pump in which the drive is integrated into the pump hub and built-in motor parts from serial production can be used.
  • the pump impeller is connected to the pump shaft by means of a bowl-shaped hub delimiting the annular space with respect to the longitudinal axis of the pump and provided with a connecting piece protruding centrally from the bottom of the bowl for receiving one end of the pump shaft.
  • the pump housing on both sides of a pipe section tapers in each case through a neck section with a connection region inclined in longitudinal section to the longitudinal axis, wherein the length of the connection region can correspond to approximately half the length of the neck section; the neck portion terminates with an approximately parallel to the longitudinal axis region which is offset axially to that pipe section.
  • the inclined - preferably curved - connecting portion of the pump housing In order to form the annular space along the entire pump housing, the inclined - preferably curved - connecting portion of the pump housing, a correspondingly shaped end portion of the motor housing opposite and limited with this the annulus, without changing the longitudinal shape substantially.
  • the end portion of the motor housing ie, the standing end portion of the rotating hub is adjacent, the shell wall is preferably aligned with the end portion.
  • the annular space is divided by axially parallel baffles in flow channels; These baffles are radial ribs of a central tube of the motor housing and / or the pipe section of the pump housing.
  • the pump shaft passes through rolling bearings which are stored in axial connecting pieces of the motor housing.
  • These axial sockets are each part of the end portion of the motor housing and embraced by another feature in each case next to the rolling bearing a sealing insert and / or shaft seals and / or a shaft sleeve.
  • the nozzle and / or the sealing insert a sealing cover should be preset.
  • the end portion of the motor housing with the neck portion of the pump housing by rod-like - preferably hollow and radial - struts is firmly connected;
  • the latter are preferably integrally formed with their front portion and the neck portion to form a unitary component.
  • at least one of the struts includes a leakage channel terminating at the pump shaft at one end.
  • leakage removal is provided between the second and third radial shaft sealing ring, which can be monitored by means of a leakage sensor.
  • the pump impeller distal end of the pump shaft is overlapped by a cover cap, and this is attached to its adjacent end portion of the motor housing; the free end of the pump shaft then preferably overlaps a final end bearing cover.
  • An additional two-stage embodiment of the pump according to the invention has an elongated pump shaft, at both ends of which a pump impeller is connected, i. the two-stage design includes a second pump impeller on its extended shaft opposite the first pump impeller.
  • the two-stage design includes a second pump impeller on its extended shaft opposite the first pump impeller.
  • the pump according to the invention is to be produced, above all, with three different blade angles of 8 °, 12 ° and 16 °, and with two 4-pole motor variants (34 KW and 54 KW).
  • the built-in motor consists of standard parts from the production of standard motors.
  • the housing sections 14 and 16 are joined to each other on Radialflanschrippen 15, 17.
  • a pump shaft 20 is provided and mounted by means of rolling bearings 22 in axial bearing or pipe socket 24 of a likewise three-piece motor housing 30.
  • This axial bearing sleeve 24 is on one - in turn approximately parallel to that terminal portion 16 a curved - collar-like end portion 26 of the motor housing 30 formed on the inside and connected by at least three radial struts 25, 25 a with the adjacent neck portion 16.
  • the end portion 26 is according to that connection portion 16 a longitudinally inclined and attached to the tubular central portion 28 of the length z of the motor housing 30 releasably attached.
  • roller bearing 22 surrounds a shaft journal 21 , which limits one end of an annular step 21 a and to the shaft end according to FIG 2, a sealing insert 32 is disposed downstream and this a seal cover 34; The latter surrounds a shaft protection sleeve 36, which is adjoined on the outside by a spacer ring 37, followed by shaft sealing rings 38. Between these ends a leakage channel 39 extending in a strut 25 a , which in FIG. 2 - below - recognizable by the neck portion 16 of Pump housing 12 is formed. 40 with a feather key on the pump shaft 20 is designated in Fig. 2.
  • the left in Fig. 1 end portion 26 of the motor housing 30 is assigned a bowl-like part of a pump impeller 46 as the hub 42 of the outer diameter e with outwardly directed bowl bottom 43, the inside a nozzle 44 is formed for the pump shaft 20; the paddle 45 having impeller 46 is connected to the shaft journal 21 of the pump shaft 20 - u.a. connected by that key 40--.
  • the other end of the pump shaft 20 is spanned by a Endlagerdeckel 47, which engages over a cover cap 48 with dome-shaped outer surface 49 at a distance.
  • the outer diameter b of the motor housing 30 corresponding in its contour almost that of the pump housing 12 is due to the described curved connection portions 16 a of the pump housing 12 - longer than the inner diameter at the end of the neck portion 16.
  • the motor housing 30 surrounds the boundary of a flow leading to the pump impeller 46 annular space 50 of the radial width a of about 49 mm - a drive or built-in motor 52, which comprises a penetrated by the pump shaft 20 rotor core 54 and a housing-side stator 56.
  • the electric cables to the built-in motor 52 are - in the drawing not recognizable by an axial channel in one of the struts 25 out.
  • the drive is integrated into the pump hub 42, and it can be used parts of the built-in motor 52 from the usual mass production.
  • a two-stage in-line pump 11 which offers the length n of 910 mm and also the outer diameter d of 520 mm.
  • Its longitudinal axis A traverses a radial plane of symmetry E, on both sides of which the pump sections which are identical to each other run. Since the pump shaft 20 a at the same time of the same configuration, both sides of that plane of symmetry E - from the cylindrical central tube or central portion 28 of the motor housing 30 outgoing - collar-shaped end portions 26 are present, in which those in Fig. 2 highlighted group of rolling bearings 22, sealing inserts 32 and sealing covers 34 are provided, also each have a leakage channel 39 between the shaft sealing rings 38.
  • Each of the end portions 26 is associated with an end dish as a hub 42 with impeller 46.
  • the motor housing 30 surrounding the drive or built-in motor 52 is provided in the region of its central section 28 of length z with - here twelve - radially integrally formed ribs 58 as guide walls or baffles. These limit axially parallel flow channels 60 of the annular space 50. Also from the central pipe section 14 of the pump housing 12 protrude on the outer surface - here: three - radial ribs 62 from.
  • the drive is also integrated in the pump hub 42.
  • two wheels 46 are driven.
  • the flow through those baffles 58 so calmed that a twist-free flow of each downstream impeller 46 is ensured even if by reversing the installation motor 52 - and reversal of the conveying direction - the liquid in the second axial direction is promoted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Rotary Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Fertilizing (AREA)
EP03731690A 2002-01-25 2003-01-22 Pumpe mit einen antriebsmotor durchsetzender pumpenwelle Expired - Lifetime EP1468189B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20201183U DE20201183U1 (de) 2002-01-25 2002-01-25 Pumpe mit einen Antriebsmotor durchsetzender Pumpenwelle
DE20201183U 2002-01-25
PCT/EP2003/000580 WO2003062642A1 (de) 2002-01-25 2003-01-22 Pumpe mit einen antriebsmotor durchsetzender pumpenwelle

Publications (2)

Publication Number Publication Date
EP1468189A1 EP1468189A1 (de) 2004-10-20
EP1468189B1 true EP1468189B1 (de) 2007-07-04

Family

ID=7967008

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03731690A Expired - Lifetime EP1468189B1 (de) 2002-01-25 2003-01-22 Pumpe mit einen antriebsmotor durchsetzender pumpenwelle

Country Status (6)

Country Link
EP (1) EP1468189B1 (da)
AT (1) ATE366368T1 (da)
DE (3) DE20201183U1 (da)
DK (1) DK1468189T3 (da)
ES (1) ES2290467T3 (da)
WO (1) WO2003062642A1 (da)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013222170A1 (de) 2013-10-31 2015-04-30 Volkswagen Aktiengesellschaft Strömungsmaschine und eine an einer Welle der Strömungsmaschine fixierbare Wellenhülse

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005054027A1 (de) * 2005-11-10 2007-05-16 Pierburg Gmbh Fluidpumpe
DE102005054060A1 (de) * 2005-11-10 2007-05-16 Pierburg Gmbh Fluidpumpe
DE102005054026A1 (de) * 2005-11-10 2007-05-16 Pierburg Gmbh Fluidpumpe

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1033032B (de) * 1952-09-02 1958-06-26 Gendron Freres S A Umwaelzpumpe, insbesondere fuer Zentralheizungen
DE1528640B2 (de) * 1965-08-31 1976-04-22 Allweiler Ag, 7760 Radolfzell Lagerung eines laeufers einer stopfbuchsenlosen heizungsumwaelzpumpe
FR2222885A5 (da) * 1973-03-23 1974-10-18 Lucas Industries Ltd
JP3077490B2 (ja) * 1993-12-28 2000-08-14 株式会社荏原製作所 ポンプ組立体

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013222170A1 (de) 2013-10-31 2015-04-30 Volkswagen Aktiengesellschaft Strömungsmaschine und eine an einer Welle der Strömungsmaschine fixierbare Wellenhülse

Also Published As

Publication number Publication date
DE50307609D1 (de) 2007-08-16
DE10302177A1 (de) 2003-07-31
DK1468189T3 (da) 2007-11-05
DE20201183U1 (de) 2002-07-04
ATE366368T1 (de) 2007-07-15
WO2003062642A1 (de) 2003-07-31
EP1468189A1 (de) 2004-10-20
ES2290467T3 (es) 2008-02-16

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