PT964635E - ELECTRIC MOTOR WITH A FAN WHEEL - Google Patents

ELECTRIC MOTOR WITH A FAN WHEEL

Info

Publication number
PT964635E
PT964635E PT97914196T PT97914196T PT964635E PT 964635 E PT964635 E PT 964635E PT 97914196 T PT97914196 T PT 97914196T PT 97914196 T PT97914196 T PT 97914196T PT 964635 E PT964635 E PT 964635E
Authority
PT
Portugal
Prior art keywords
impeller
electric motor
diffuser
height
fan wheel
Prior art date
Application number
PT97914196T
Other languages
Portuguese (pt)
Inventor
Mathias Varnhorst
Original Assignee
Vorwerk Co Interholding
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 Vorwerk Co Interholding filed Critical Vorwerk Co Interholding
Publication of PT964635E publication Critical patent/PT964635E/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • 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
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F04D29/444—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
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/52—Outlet

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Harvester Elements (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The invention relates to an electric motor (1) with an impeller (3) and a diffuser (4) which is connected radially to said impeller (3). Said impeller (3) has guide blades (21) with a guide blade height (b4) and said diffuser (4) has walls (8) with a wall height (b2). According to the invention, the height of the diffuser wall (b2) to the height of the guide blades (b4) should range between 1.7 and 1.2 approximately, in order to create an electric motor with a impeller (3) and a diffuser (4) connected radially to said impeller (3) which has a good production design, which will remain stable and achieve a good degree of efficiency during strong throttling.
PT97914196T 1996-02-16 1997-03-06 ELECTRIC MOTOR WITH A FAN WHEEL PT964635E (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19605742A DE19605742A1 (en) 1996-02-16 1996-02-16 Electric motor with impeller wheel
PCT/EP1997/001139 WO1998038899A1 (en) 1996-02-16 1997-03-06 Electric motor with impeller

Publications (1)

Publication Number Publication Date
PT964635E true PT964635E (en) 2003-06-30

Family

ID=26022947

Family Applications (1)

Application Number Title Priority Date Filing Date
PT97914196T PT964635E (en) 1996-02-16 1997-03-06 ELECTRIC MOTOR WITH A FAN WHEEL

Country Status (11)

Country Link
EP (1) EP0964635B1 (en)
JP (1) JP2001513861A (en)
AT (1) ATE231703T1 (en)
CZ (1) CZ297722B6 (en)
DE (2) DE19605742A1 (en)
DK (1) DK0964635T3 (en)
ES (1) ES2187763T3 (en)
PL (1) PL183560B1 (en)
PT (1) PT964635E (en)
SK (1) SK285632B6 (en)
WO (1) WO1998038899A1 (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10200951A1 (en) * 2002-01-08 2003-08-14 Kern Gmbh Dr Method for cooling a vacuum cleaner fan motor has an impeller with vanes on both sides for suction and cooling
DE60325790D1 (en) * 2002-09-20 2009-02-26 Panasonic Corp Electric blower and vacuum cleaner equipped therewith
JP4606005B2 (en) * 2003-09-02 2011-01-05 三洋電機株式会社 Electric blower
CN1614241B (en) * 2003-11-07 2012-12-19 台达电子工业股份有限公司 Centrifugal fan and its frame structure
EP1571343B1 (en) * 2004-03-05 2006-05-24 C.R.F. Società Consortile per Azioni Automotive motor-compressor assembly
KR20060015073A (en) * 2004-08-13 2006-02-16 엘지전자 주식회사 Centrifugal fan for vacuum cleaner
JP4851801B2 (en) * 2006-01-31 2012-01-11 株式会社東芝 Electric blower and vacuum cleaner
GB0613796D0 (en) * 2006-07-12 2006-08-23 Johnson Electric Sa Blower
DE102008014624A1 (en) 2008-03-17 2009-09-24 Vorwerk & Co. Interholding Gmbh electric motor
CN105749394B (en) * 2009-08-11 2018-12-04 瑞思迈发动机及马达技术股份有限公司 Single-stage axial symmetry air blower and Portable Fan
JP5544318B2 (en) * 2011-03-01 2014-07-09 日立アプライアンス株式会社 Electric blower and vacuum cleaner equipped with the same
DE102014208128A1 (en) * 2014-04-30 2015-11-05 BSH Hausgeräte GmbH Radial fan with improved overflow edge geometry
CN105090114A (en) * 2014-05-07 2015-11-25 德昌电机(深圳)有限公司 Diffuser and draught fan applying same
JP6381983B2 (en) * 2014-06-13 2018-08-29 日立アプライアンス株式会社 Electric blower for vacuum cleaner and electric vacuum cleaner provided with the same
CN106468288A (en) 2015-08-21 2017-03-01 德昌电机(深圳)有限公司 Bubbler, air flow-producing device and vacuum cleaner, hand dryer, hair-dryer
WO2018003017A1 (en) * 2016-06-28 2018-01-04 三菱電機株式会社 Electric blower and electric vacuum cleaner
JP2018003806A (en) * 2016-07-08 2018-01-11 日立アプライアンス株式会社 Electric blower and vacuum cleaner including the same
CN114483654A (en) * 2017-04-28 2022-05-13 广东威灵电机制造有限公司 Fan system and electric appliance
CN106958538B (en) * 2017-05-11 2019-12-31 美的集团股份有限公司 Centrifugal fan and dust collector with same
JP2019031971A (en) * 2018-07-27 2019-02-28 日立アプライアンス株式会社 Electric blower for vacuum cleaner and vacuum cleaner including the same
CN114183402A (en) * 2020-09-14 2022-03-15 北京石头世纪科技股份有限公司 Fan and cleaning equipment

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2852106B2 (en) * 1990-07-20 1999-01-27 株式会社日立製作所 Vacuum cleaner and electric blower
GB2251035A (en) * 1990-12-20 1992-06-24 Dunphy Oil And Gas Burners Lim Centrifugal fan
JPH0914192A (en) * 1995-06-26 1997-01-14 Hitachi Ltd Motor-driven blower and vacuum cleaner

Also Published As

Publication number Publication date
EP0964635B1 (en) 2003-01-29
DE19605742A1 (en) 1997-08-21
SK285632B6 (en) 2007-05-03
CZ300499A3 (en) 2000-08-16
PL335112A1 (en) 2000-04-10
SK120099A3 (en) 2000-05-16
ES2187763T3 (en) 2003-06-16
CZ297722B6 (en) 2007-03-14
JP2001513861A (en) 2001-09-04
PL183560B1 (en) 2002-06-28
DE59709247D1 (en) 2003-03-06
WO1998038899A1 (en) 1998-09-11
ATE231703T1 (en) 2003-02-15
EP0964635A1 (en) 1999-12-22
DK0964635T3 (en) 2003-05-26

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