EP2495448A3 - Flow guiding device for a pump and pump - Google Patents

Flow guiding device for a pump and pump Download PDF

Info

Publication number
EP2495448A3
EP2495448A3 EP12157677.1A EP12157677A EP2495448A3 EP 2495448 A3 EP2495448 A3 EP 2495448A3 EP 12157677 A EP12157677 A EP 12157677A EP 2495448 A3 EP2495448 A3 EP 2495448A3
Authority
EP
European Patent Office
Prior art keywords
pump
angle
impeller
fluid flow
guiding device
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.)
Granted
Application number
EP12157677.1A
Other languages
German (de)
French (fr)
Other versions
EP2495448B1 (en
EP2495448A2 (en
Inventor
Wolfgang Weber
Tobias Albert
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.)
EGO Elektro Geratebau GmbH
Original Assignee
EGO Elektro Geratebau 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 EGO Elektro Geratebau GmbH filed Critical EGO Elektro Geratebau GmbH
Priority to PL12157677T priority Critical patent/PL2495448T3/en
Publication of EP2495448A2 publication Critical patent/EP2495448A2/en
Publication of EP2495448A3 publication Critical patent/EP2495448A3/en
Application granted granted Critical
Publication of EP2495448B1 publication Critical patent/EP2495448B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/466—Fluid-guiding means, e.g. diffusers adjustable especially adapted for liquid fluid pumps
    • F04D29/468—Fluid-guiding means, e.g. diffusers adjustable especially adapted for liquid fluid pumps adjusting flow cross-section, otherwise than by using adjustable stator blades
    • 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
    • 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
    • F04D29/448—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps bladed diffusers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/10—Stators
    • F05D2240/12—Fluid guiding means, e.g. vanes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Eine Strömungsleiteinrichtung (25) für eine Impeller-Radialpumpe ist radial außerhalb des Impellers angeordnet und ringförmig umlaufend mit einem umlaufenden Trägerring (27), an dem mehrere Leitschaufeln (29) angeordnet sind. Diese sind derart elastisch ausgebildet, dass bei geringem Fluidstrom ein Anstellwinkel mehr in radiale Richtung weist mit einem Winkel von etwa 70° zur Längsmittelachse der Pumpe. Bei starkem Fluidstrom wird der Winkel kleiner und die Leitschaufeln (29) biegen sich zumindest bereichsweise elastisch ab, so dass sie mit einem kleineren Winkel zwischen 30° und 40° zur Längsmittelachse der Pumpe stehen. So wird das Fluid besser in der Pumpenkammer gefördert.

Figure imgaf001
A Strömungsleiteinrichtung (25) for an impeller radial pump is arranged radially outside the impeller and annularly encircling with a circumferential support ring (27) on which a plurality of vanes (29) are arranged. These are designed so elastically that at low fluid flow an angle more in the radial direction has an angle of about 70 ° to the longitudinal central axis of the pump. In the case of a strong fluid flow, the angle becomes smaller and the guide vanes (29) bend elastically at least in regions, so that they are at a smaller angle between 30 ° and 40 ° to the longitudinal center axis of the pump. So the fluid is better promoted in the pump chamber.
Figure imgaf001
EP12157677.1A 2011-03-04 2012-03-01 Flow guiding device for a pump and pump Active EP2495448B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12157677T PL2495448T3 (en) 2011-03-04 2012-03-01 Flow guiding device for a pump and pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201110005139 DE102011005139B4 (en) 2011-03-04 2011-03-04 Flow guide for a pump and pump

Publications (3)

Publication Number Publication Date
EP2495448A2 EP2495448A2 (en) 2012-09-05
EP2495448A3 true EP2495448A3 (en) 2014-01-01
EP2495448B1 EP2495448B1 (en) 2018-08-22

Family

ID=45841205

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12157677.1A Active EP2495448B1 (en) 2011-03-04 2012-03-01 Flow guiding device for a pump and pump

Country Status (6)

Country Link
US (1) US9011091B2 (en)
EP (1) EP2495448B1 (en)
DE (1) DE102011005139B4 (en)
ES (1) ES2694581T3 (en)
PL (1) PL2495448T3 (en)
TR (1) TR201815705T4 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2460369B1 (en) 2012-11-12 2015-03-02 Coprecitec Sl Fluid circulation pump adapted for an appliance
CN103133392B (en) * 2013-03-06 2014-04-02 扬州大学 Movable cavity water guide valve device of upright open type pump system
CN104235070A (en) * 2013-06-13 2014-12-24 德昌电机(深圳)有限公司 Pump case and pump with same
WO2015100702A1 (en) * 2013-12-31 2015-07-09 宁波方太厨具有限公司 Open water pump and application thereof
EP3126679B1 (en) * 2014-03-26 2020-02-19 I.R.C.A. S.p.A. Industria Resistenze Corazzate e Affini Centrifugal pump for household appliances
CN105508298B (en) * 2016-01-18 2018-05-25 中国联合工程有限公司 A kind of shield electric machine main pump pump case guiding device
CN109058123A (en) * 2018-09-25 2018-12-21 彭定泽 A kind of water pump selection formula flow-guiding structure
DE202019103660U1 (en) * 2019-07-03 2020-10-06 Borgwarner Inc. Adjustment mechanism for a compressor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB206825A (en) * 1922-11-07 1924-01-10 Escher Wyss Maschf Ag An improved guide wheel for centrifugal pumps
FR921711A (en) * 1946-02-07 1947-05-16 Self-adjusting diffuser for centrifugal pumps
FR2153796A5 (en) * 1971-09-24 1973-05-04 Le Metalliches
SU1076640A1 (en) * 1980-12-17 1984-02-29 Сумский филиал Харьковского политехнического института им.В.И.Ленина Centrifugal pump
WO2008125488A2 (en) * 2007-04-12 2008-10-23 BSH Bosch und Siemens Hausgeräte GmbH Pump having a heating device
EP2131042A2 (en) * 2008-06-06 2009-12-09 Pierburg GmbH Adjustable coolant pump for the coolant circuit of a combustion engine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB180823A (en) * 1921-03-31 1922-06-08 George Ure Reid Improvements in centrifugal pumps
US1988163A (en) * 1930-03-21 1935-01-15 Ingersoll Rand Co Centrifugal pump
US2648195A (en) * 1945-12-28 1953-08-11 Rolls Royce Centrifugal compressor for supercharging internal-combustion engines
US4642026A (en) * 1983-07-26 1987-02-10 Ruff John D Centrifugal compressor with adjustable diffuser
DE102006021245B4 (en) * 2006-04-28 2008-03-06 Bühler Motor GmbH rotary pump
DE102007039120B4 (en) * 2007-08-18 2021-09-16 Bayerische Motoren Werke Aktiengesellschaft Swirl generating device
DE102007039707A1 (en) 2007-08-22 2009-07-30 Miele & Cie. Kg Clothes dryer with a holding device
US8197193B2 (en) * 2008-05-02 2012-06-12 Unico, Inc. Air distribution blower housing with adjustable restriction

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB206825A (en) * 1922-11-07 1924-01-10 Escher Wyss Maschf Ag An improved guide wheel for centrifugal pumps
FR921711A (en) * 1946-02-07 1947-05-16 Self-adjusting diffuser for centrifugal pumps
FR2153796A5 (en) * 1971-09-24 1973-05-04 Le Metalliches
SU1076640A1 (en) * 1980-12-17 1984-02-29 Сумский филиал Харьковского политехнического института им.В.И.Ленина Centrifugal pump
WO2008125488A2 (en) * 2007-04-12 2008-10-23 BSH Bosch und Siemens Hausgeräte GmbH Pump having a heating device
EP2131042A2 (en) * 2008-06-06 2009-12-09 Pierburg GmbH Adjustable coolant pump for the coolant circuit of a combustion engine

Also Published As

Publication number Publication date
ES2694581T3 (en) 2018-12-21
US20120224957A1 (en) 2012-09-06
TR201815705T4 (en) 2018-11-21
EP2495448B1 (en) 2018-08-22
PL2495448T3 (en) 2019-03-29
EP2495448A2 (en) 2012-09-05
DE102011005139B4 (en) 2014-05-28
US9011091B2 (en) 2015-04-21
DE102011005139A1 (en) 2012-09-06

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