US20100111687A1 - Centrifugal Pump Comprising a Spiral Housing - Google Patents

Centrifugal Pump Comprising a Spiral Housing Download PDF

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Publication number
US20100111687A1
US20100111687A1 US12/529,455 US52945508A US2010111687A1 US 20100111687 A1 US20100111687 A1 US 20100111687A1 US 52945508 A US52945508 A US 52945508A US 2010111687 A1 US2010111687 A1 US 2010111687A1
Authority
US
United States
Prior art keywords
centrifugal pump
housing part
rotor
cup
chamber
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.)
Abandoned
Application number
US12/529,455
Other languages
English (en)
Inventor
Rajko Colic
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.)
Continental Automotive GmbH
Original Assignee
Continental Automotive 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 Continental Automotive GmbH filed Critical Continental Automotive GmbH
Assigned to CONTINENTAL AUTOMOTIVE GMBH reassignment CONTINENTAL AUTOMOTIVE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: COLIC, RAJKO
Publication of US20100111687A1 publication Critical patent/US20100111687A1/en
Abandoned 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
    • F04D13/0606—Canned motor 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
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—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
    • F04D29/08—Sealings
    • F04D29/086—Sealings 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/586—Cooling; Heating; Diminishing heat transfer specially 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps

Definitions

  • the invention relates to a centrifugal pump having a spiral housing.
  • the invention further relates to the use of the centrifugal pump.
  • Centrifugal pumps having spiral housings are known.
  • DE 103 47 302 A1 describes a two-part spiral housing for a centrifugal pump, which is of optimized design from the point of view of fluid mechanics.
  • Such centrifugal pumps are generally driven by an electric motor, the stator of the electric motor being arranged in a dry chamber and the rotor in a wet chamber. The rotor therefore turns in the wet chamber, which is the medium to be pumped.
  • the dry chamber and the wet chamber are divided by a separately arranged can.
  • a disadvantage being that it is necessary to arrange sealing elements between the one part of the spiral housing and the can avoid liquid or vapor from the wet chamber getting into the dry chamber.
  • An object of the invention is to create a centrifugal pump having a spiral housing, in which liquid or vapor from the wet chamber enclosing the rotor is prevented from entering the dry chamber.
  • a centrifugal pump having a spiral housing, which comprises a first housing part and a second housing part, in which the central area of the second housing part is of a continuous cup-shaped design to accommodate the rotor situated in the wet chamber N, and a bearing for the rotatable mounting of the rotor is formed in the cup-shaped base part, a stator being arranged in the dry chamber T externally surrounding the second housing part in the area of the rotor.
  • the central area of the second housing part is of a continuous cup-shaped design, which means that it forms a virtually cylindrical part with terminating base.
  • the cup-shaped design defines the wet chamber N, which accommodates the rotor.
  • the second housing part forms a bearing for the rotatable mounting of the rotor, the cup-shaped base part either itself serving as bearing or accommodating a bearing for the rotor.
  • the outer area of the second housing part has an outline of curved longitudinal section perpendicular to the direction of flow of the medium flowing in from the inlet E.
  • the precise curved profile is engineered to optimize the fluid mechanics of the spiral housing. This is an advantageous way of adjusting the flow conditions in the spiral housing to an optimum setting, so that the overall space required for the centrifugal pump is reduced.
  • the invention further relates to the use of the centrifugal pump as a coolant centrifugal pump in a motor vehicle. Coolant centrifugal pumps in motor vehicles have to function over a prolonged time, there being a need to avoid damaging the electronic components in the dry chamber T. The use of the centrifugal pump as a coolant centrifugal pump in a motor vehicle is therefore particularly advantageous.
  • FIG. 1 is a perspective view in longitudinal section through the centrifugal pump
  • FIG. 2 is a perspective view in longitudinal section through the centrifugal pump in the form of an exploded diagram
  • FIG. 3 is a perspective view in longitudinal section through a centrifugal pump according to the state of the art.
  • FIG. 1 is a centrifugal pump in longitudinal section. It comprises a spiral housing, which comprises a first housing part 1 and a second housing part 2 .
  • a central area of the second housing part 2 is of a continuous cup-shaped design to accommodate the rotor 3 situated in a wet chamber N.
  • the second housing part 2 has a bearing 3 ′ for the rotatable mounting of the rotor 3 .
  • a stator 4 is arranged in a dry chamber T externally surrounding the second housing part 2 in the area of the rotor 3 .
  • the dry chamber T is sealed from the surroundings by a housing 5 .
  • the outer area of the second housing part 2 has an outline 2 * of curved longitudinal section perpendicular to the direction of flow of the medium flowing in from the inlet E.
  • the medium flowing in is represented by a bold arrow.
  • the curved outline 2 * serves to optimize the flow conditions inside the spiral housing. Any ingress of liquid or vapor from the wet chamber N into the dry chamber T is prevented even without the arrangement of sealing elements, so that electronic components (not shown) and the stator 4 in the dry chamber are protected against damage by liquid or vapor.
  • FIG. 2 is the centrifugal pump of FIG. 1 in longitudinal section in the form of an exploded diagram.
  • the central area of the second housing part 2 is of a continuous cup-shaped design configured to accommodate the rotor 3 .
  • the wet chamber N (not shown) defined by this central area is therefore completely screened off from the dry chamber T (not shown), in which the stator 4 is situated.
  • FIG. 3 shows a longitudinal section through a centrifugal pump according to the state of the art.
  • the centrifugal pump according to the state of the art has a spiral housing, which comprises a first housing part 1 b and a second housing part 2 b.
  • Liquid medium to be pumped represented by the bold arrow, passes through the inlet Eb into the wet chamber Nb, in which the rotor 3 b is rotatably mounted.
  • a stator 4 b in the dry chamber Tb is externally arranged in the area of the rotor 3 b.
  • the dry chamber Tb is here closed off from the surroundings by a housing 5 b.
  • the wet chamber Nb is separated from the dry chamber Tb by the arrangement of a can 6 b, it being possible under certain circumstances for liquid to get into the dry chamber Tb from the wet chamber Nb owing to a disadvantageous arrangement of a sealing ring 7 b, which has to be arranged between the can 6 b and the second housing part 2 b.
  • a sealing ring 7 b which has to be arranged between the can 6 b and the second housing part 2 b.

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)
US12/529,455 2007-03-01 2008-02-08 Centrifugal Pump Comprising a Spiral Housing Abandoned US20100111687A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102007010050A DE102007010050A1 (de) 2007-03-01 2007-03-01 Kreiselpumpe mit einem Spiralgehäuse
DE102007010050.9 2007-03-01
PCT/EP2008/051570 WO2008104451A1 (de) 2007-03-01 2008-02-08 Kreiselpumpe mit einem spiralgehäuse

Publications (1)

Publication Number Publication Date
US20100111687A1 true US20100111687A1 (en) 2010-05-06

Family

ID=39332206

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/529,455 Abandoned US20100111687A1 (en) 2007-03-01 2008-02-08 Centrifugal Pump Comprising a Spiral Housing

Country Status (6)

Country Link
US (1) US20100111687A1 (zh)
EP (1) EP2054628A1 (zh)
JP (1) JP2010520396A (zh)
CN (1) CN101617124A (zh)
DE (1) DE102007010050A1 (zh)
WO (1) WO2008104451A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140271280A1 (en) * 2013-03-15 2014-09-18 Merkle-Korff Industries, Inc. Pump motor
US20140341752A1 (en) * 2013-03-19 2014-11-20 Flow Control Llc. Low profile pump with the ability to be mounted in various configurations
US10243434B2 (en) 2014-06-30 2019-03-26 Nidec Motor Corporation Stator with overmolded core and mold for producing same
US10385849B2 (en) 2014-03-26 2019-08-20 Continental Automotive Gmbh Method for operating a pump

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUB20160314A1 (it) * 2016-02-02 2017-08-02 Dab Pumps Spa Struttura perfezionata di elettropompa centrifuga e cassa motore per tale struttura perfezionata

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967915A (en) * 1975-01-27 1976-07-06 Litzenberg David P Centrifugal pump
US5785013A (en) * 1995-12-07 1998-07-28 Pierburg Ag Electrically driven coolant pump for an internal combustion engine
US6229240B1 (en) * 1998-10-05 2001-05-08 Wilo Gmbh Split-tube motor
US6663362B1 (en) * 1999-11-24 2003-12-16 Robert Bosch Gmbh Fluid pump with a motor housing and method for producing a motor housing
US6939115B2 (en) * 2001-08-18 2005-09-06 Pierburg Gmbh Wet-type rotor pump
US20060251513A1 (en) * 2003-07-22 2006-11-09 BSH Bosch und Siemens Hausgeräte GmbH Pump comprising an integrated engine
US8002522B2 (en) * 2006-04-28 2011-08-23 Bühler Motor GmbH Centrifugal pump
US8047816B2 (en) * 2006-09-28 2011-11-01 Nidec Corporation Centrifugal pump

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10103209A1 (de) * 2001-01-24 2002-07-25 Wilo Gmbh Motorgehäuse mit Spalttopf
ITMI20030364U1 (it) * 2003-07-30 2005-01-31 Ind Saleri Italo Spa Pompa elettrica per circuiti di raffreddamento
DE10347302A1 (de) 2003-10-08 2005-05-12 Siemens Ag Spiralgehäuse für eine Kreiselpumpe

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967915A (en) * 1975-01-27 1976-07-06 Litzenberg David P Centrifugal pump
US5785013A (en) * 1995-12-07 1998-07-28 Pierburg Ag Electrically driven coolant pump for an internal combustion engine
US6229240B1 (en) * 1998-10-05 2001-05-08 Wilo Gmbh Split-tube motor
US6663362B1 (en) * 1999-11-24 2003-12-16 Robert Bosch Gmbh Fluid pump with a motor housing and method for producing a motor housing
US6939115B2 (en) * 2001-08-18 2005-09-06 Pierburg Gmbh Wet-type rotor pump
US20060251513A1 (en) * 2003-07-22 2006-11-09 BSH Bosch und Siemens Hausgeräte GmbH Pump comprising an integrated engine
US8002522B2 (en) * 2006-04-28 2011-08-23 Bühler Motor GmbH Centrifugal pump
US8047816B2 (en) * 2006-09-28 2011-11-01 Nidec Corporation Centrifugal pump

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140271280A1 (en) * 2013-03-15 2014-09-18 Merkle-Korff Industries, Inc. Pump motor
US20140341752A1 (en) * 2013-03-19 2014-11-20 Flow Control Llc. Low profile pump with the ability to be mounted in various configurations
US9810241B2 (en) * 2013-03-19 2017-11-07 Flow Control LLC Low profile pump with the ability to be mounted in various configurations
US10323646B2 (en) 2013-03-19 2019-06-18 Flow Control LLC Low profile pump with the ability to be mounted in various configurations
US10385849B2 (en) 2014-03-26 2019-08-20 Continental Automotive Gmbh Method for operating a pump
US10243434B2 (en) 2014-06-30 2019-03-26 Nidec Motor Corporation Stator with overmolded core and mold for producing same

Also Published As

Publication number Publication date
DE102007010050A1 (de) 2008-09-04
JP2010520396A (ja) 2010-06-10
WO2008104451A1 (de) 2008-09-04
EP2054628A1 (de) 2009-05-06
CN101617124A (zh) 2009-12-30

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Legal Events

Date Code Title Description
AS Assignment

Owner name: CONTINENTAL AUTOMOTIVE GMBH,GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:COLIC, RAJKO;REEL/FRAME:023184/0520

Effective date: 20090710

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION