EP1571348A3 - Centrifugal pump - Google Patents

Centrifugal pump Download PDF

Info

Publication number
EP1571348A3
EP1571348A3 EP05004187A EP05004187A EP1571348A3 EP 1571348 A3 EP1571348 A3 EP 1571348A3 EP 05004187 A EP05004187 A EP 05004187A EP 05004187 A EP05004187 A EP 05004187A EP 1571348 A3 EP1571348 A3 EP 1571348A3
Authority
EP
European Patent Office
Prior art keywords
centrifugal pump
flow channel
impeller
outlet
pump
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.)
Withdrawn
Application number
EP05004187A
Other languages
German (de)
French (fr)
Other versions
EP1571348A2 (en
Inventor
Hans-Jürgen Kraffzik
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.)
Aweco Appliance Systems GmbH and Co KG
Original Assignee
Aweco Appliance Systems GmbH and Co KG
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
Priority claimed from DE102004011365A external-priority patent/DE102004011365A1/en
Priority claimed from DE102004048362A external-priority patent/DE102004048362A1/en
Application filed by Aweco Appliance Systems GmbH and Co KG filed Critical Aweco Appliance Systems GmbH and Co KG
Publication of EP1571348A2 publication Critical patent/EP1571348A2/en
Publication of EP1571348A3 publication Critical patent/EP1571348A3/en
Withdrawn legal-status Critical Current

Links

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
    • F04D29/40—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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps

Abstract

Es wird eine Kreiselpumpe, insbesondere für Haushaltsmaschinen, wie Waschmaschinen oder Geschirrspüler, mit einem Pumpengehäuse vorgeschlagen, dessen Außenform im Wesentlichen radialsymmetrisch ausgebildet ist und das einen axialen Einlass sowie einen umfangsseitigen Auslass aufweist, und mit einem rotierbar gelagerten Pumpenrad, wobei ein das Pumpenrad umgebender Strömungskanal vorgesehen ist. Bei einer derartigen Kreiselpumpe soll der Wirkungsgrad dadurch verbessert werden, dass der Strömungsquerschnitt des Strömungskanals (15) entlang dem Umfang zum Auslass hin zunimmt.

Figure imgaf001
It is a centrifugal pump, in particular for household appliances, such as washing machines or dishwashers, proposed with a pump housing whose outer shape is substantially radially symmetrical and which has an axial inlet and a peripheral outlet, and with a rotatably mounted impeller, wherein a surrounding the impeller flow channel is provided. In such a centrifugal pump, the efficiency should be improved by increasing the flow cross-section of the flow channel (15) along the circumference to the outlet.
Figure imgaf001
EP05004187A 2004-03-05 2005-02-25 Centrifugal pump Withdrawn EP1571348A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102004011365 2004-03-05
DE102004011365A DE102004011365A1 (en) 2004-03-05 2004-03-05 rotary pump
DE102004048362 2004-10-01
DE102004048362A DE102004048362A1 (en) 2004-03-05 2004-10-01 Rotary pump for domestic appliances has an integrated heating element having improved efficiency due to greater contact with the circulated water

Publications (2)

Publication Number Publication Date
EP1571348A2 EP1571348A2 (en) 2005-09-07
EP1571348A3 true EP1571348A3 (en) 2008-12-24

Family

ID=34751411

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05004187A Withdrawn EP1571348A3 (en) 2004-03-05 2005-02-25 Centrifugal pump

Country Status (2)

Country Link
US (1) US20050196274A1 (en)
EP (1) EP1571348A3 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004058593B4 (en) * 2004-11-26 2016-05-12 Xylem Ip Holdings Llc circulating pump
DE202008015058U1 (en) * 2008-11-13 2009-02-19 Eichenauer Heizelemente Gmbh & Co. Kg Heatable pump housing part
CN102080671B (en) * 2009-11-27 2015-05-13 德昌电机(深圳)有限公司 Centrifugal pump
CN101865160B (en) * 2010-07-08 2012-05-09 中国航天科技集团公司第六研究院第十一研究所 Partial emission pump with low specific speed
DE102013211180A1 (en) * 2013-06-14 2014-12-18 E.G.O. Elektro-Gerätebau GmbH pump
KR101893847B1 (en) * 2016-11-11 2018-08-31 명화공업주식회사 Waterpump
CN110107504B (en) * 2019-05-20 2021-11-19 佛山市顺德区美的洗涤电器制造有限公司 Heating pump and dish washing machine
CN112294219B (en) * 2019-07-29 2022-07-12 佛山市威灵洗涤电机制造有限公司 Heating pump and household appliance with same
US11852162B2 (en) * 2021-12-17 2023-12-26 Robert Bosch Llc Centrifugal pump assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1418055A (en) * 1972-05-18 1975-12-17 Saunier Duval Pump volute assembly
NL7711247A (en) * 1976-10-15 1978-04-18 Alfa Laval Ab CENTRIFUGAL PUMP.
US4225292A (en) * 1977-02-01 1980-09-30 Aktiebolaget Skf Liquid cooled pump motor unit
DE3920941A1 (en) * 1988-07-05 1990-01-11 Volkswagen Ag Centrifugal pump, especially a coolant pump for an internal combustion engine

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733892A (en) * 1956-02-07 Thrust bearings
US2257011A (en) * 1939-11-01 1941-09-23 G & J Weir Ltd Lubricating and cooling system for the stuffing boxes for pumps and like engines
BE791867A (en) * 1971-11-26 1973-05-24 Wallace Murray Corp DUAL COLLECTOR TURBOCHARGER COMPRESSOR
US3781126A (en) * 1972-06-15 1973-12-25 Wallace Murray Corp Turbocharger compressor with dual inlet and collector chambers
US4047831A (en) * 1975-11-13 1977-09-13 Allis-Chalmers Corporation Method for reducing hydraulic turbine seal temperature while turbine runner is rotating in air
DE2823261C2 (en) * 1978-05-27 1985-05-23 Robert Bosch Gmbh, 7000 Stuttgart Electric machine
US4245952A (en) * 1979-05-10 1981-01-20 Hale Fire Pump Company Pump
US5201642A (en) * 1991-11-27 1993-04-13 Warren Pumps, Inc. Magnetic drive pump
US5304033A (en) * 1992-07-20 1994-04-19 Allied-Signal Inc. Rotary compressor with stepped cover contour
US5701388A (en) * 1994-12-22 1997-12-23 Kohler Co. Combined heater and pump
US5569017A (en) * 1994-12-22 1996-10-29 Ametek, Inc. Fan end bracket for high velocity low pressure blowers
US6193463B1 (en) * 1999-06-30 2001-02-27 Alliedsignal, Inc. Die cast compressor housing for centrifugal compressors with a true volute shape
US6428268B1 (en) * 1999-08-20 2002-08-06 Giw Industries, Inc. Pump with auxiliary impeller vane inlet device
US6623239B2 (en) * 2000-12-13 2003-09-23 Honeywell International Inc. Turbocharger noise deflector
US6779974B2 (en) * 2002-12-11 2004-08-24 Polyvane Technology Corp. Device of a volute channel of a pump
GB0313143D0 (en) * 2003-06-07 2003-07-09 Boc Group Plc Sewage aeration
TWI235205B (en) * 2003-10-31 2005-07-01 Delta Electronics Inc Centrifugal fan with stator blades
US6945748B2 (en) * 2004-01-22 2005-09-20 Electro-Motive Diesel, Inc. Centrifugal compressor with channel ring defined inlet recirculation channel
US7210903B2 (en) * 2004-09-03 2007-05-01 Fasco Industries, Inc. Lobed joint draft inducer blower
US7189052B2 (en) * 2004-11-03 2007-03-13 Accessible Technologies, Inc. Centrifugal compressor having rotatable compressor case insert

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1418055A (en) * 1972-05-18 1975-12-17 Saunier Duval Pump volute assembly
NL7711247A (en) * 1976-10-15 1978-04-18 Alfa Laval Ab CENTRIFUGAL PUMP.
US4225292A (en) * 1977-02-01 1980-09-30 Aktiebolaget Skf Liquid cooled pump motor unit
DE3920941A1 (en) * 1988-07-05 1990-01-11 Volkswagen Ag Centrifugal pump, especially a coolant pump for an internal combustion engine

Also Published As

Publication number Publication date
EP1571348A2 (en) 2005-09-07
US20050196274A1 (en) 2005-09-08

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