LV12170A - Radial fan blade - Google Patents

Radial fan blade

Info

Publication number
LV12170A
LV12170A LV980178A LV980178A LV12170A LV 12170 A LV12170 A LV 12170A LV 980178 A LV980178 A LV 980178A LV 980178 A LV980178 A LV 980178A LV 12170 A LV12170 A LV 12170A
Authority
LV
Latvia
Prior art keywords
fan blade
radial fan
apertures
impeller
curve
Prior art date
Application number
LV980178A
Other languages
Latvian (lv)
Other versions
LV12170B (en
Inventor
Mathias Varnhorst
Cathleen Bohme
Gerhard Ullrich
Peter Pszola
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 LV12170A publication Critical patent/LV12170A/en
Publication of LV12170B publication Critical patent/LV12170B/en

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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Supercharger (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Testing Of Balance (AREA)

Abstract

The invention relates to a radial impeller (1), preferably on an electric motor (10), especially an electric vacuum cleaner motor, with an impeller disc (8) on which are fitted preferably curved blades (2) with an outer curve (3) and an inner curve (4). Through apertures (6) are provided in the impeller disc (8). To reduce noise, the invention proposes that the through apertures (6) allocated to a blade (2) be formed on the outer curve (3).
LVP-98-178A 1994-02-03 1998-09-16 Radial impeller LV12170B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4403224A DE4403224A1 (en) 1994-02-03 1994-02-03 Radial fan wheel

Publications (2)

Publication Number Publication Date
LV12170A true LV12170A (en) 1998-11-20
LV12170B LV12170B (en) 1999-01-20

Family

ID=6509329

Family Applications (1)

Application Number Title Priority Date Filing Date
LVP-98-178A LV12170B (en) 1994-02-03 1998-09-16 Radial impeller

Country Status (19)

Country Link
EP (1) EP0692076B1 (en)
JP (1) JP3490089B2 (en)
CN (1) CN1076447C (en)
AT (1) ATE167917T1 (en)
AU (1) AU1455795A (en)
CA (1) CA2159803A1 (en)
CZ (1) CZ285753B6 (en)
DE (2) DE4403224A1 (en)
DK (1) DK0692076T3 (en)
ES (1) ES2118556T3 (en)
FI (1) FI954669A (en)
LV (1) LV12170B (en)
MY (1) MY111675A (en)
NO (1) NO953829D0 (en)
PL (1) PL175646B1 (en)
SI (1) SI0692076T1 (en)
SK (1) SK280010B6 (en)
TW (1) TW315699U (en)
WO (1) WO1995021330A1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10020878C2 (en) * 2000-04-28 2002-05-02 Verax Ventilatoren Gmbh Fans, in particular for ventilating electronic devices
JP4426776B2 (en) * 2003-04-25 2010-03-03 株式会社やまびこ Centrifugal impeller for ventilation
JP4453378B2 (en) * 2004-02-03 2010-04-21 日立工機株式会社 Blower
CN100396937C (en) * 2005-01-26 2008-06-25 鸿进科技有限公司 Airflow generating structure and the device thereof
ITPD20050116A1 (en) * 2005-04-27 2006-10-28 Ln 2 Srl FORCED AIR CIRCULATION SYSTEM FOR DRYING MACHINES AND WASHING MACHINES-DRYERS, PARTICULARLY FOR HOUSEHOLD USE.
GB2444939A (en) * 2006-12-22 2008-06-25 Dyson Technology Ltd A shaped member for an impeller rotor assembly
JP5295682B2 (en) * 2008-08-08 2013-09-18 株式会社東芝 Electric blower and vacuum cleaner
FR2943103B1 (en) * 2009-03-13 2011-05-27 Turbomeca AXIALO-CENTRIFUGAL COMPRESSOR WITH AN EVOLVING RAKE ANGLE
CN104564805B (en) * 2013-10-29 2017-11-10 海尔集团公司 Machine in a kind of blade structure of centrifugal blower, centrifugal blower and embedded type air conditioner
CN108266403A (en) * 2017-01-03 2018-07-10 珠海格力电器股份有限公司 Centrifugal fan and impeller assembly thereof
CN207673614U (en) * 2017-05-27 2018-07-31 莱克电气股份有限公司 A kind of impeller assembly and air purifier for air purifier
PL234932B1 (en) * 2018-03-19 2020-05-18 Wroblewski Andrzej Przed Techniczno Handlowe Energowent Rotor of an axial fan
CN110319054B (en) * 2019-05-30 2020-09-18 宁波方太厨具有限公司 Impeller for forward centrifugal fan
CN110566501A (en) * 2019-09-12 2019-12-13 佛山市南海九洲普惠风机有限公司 Forward-bending type fan blade, impeller and centrifugal fan
CN110905850A (en) * 2019-10-28 2020-03-24 天津怡和嘉业医疗科技有限公司 Impeller and fan for ventilation treatment equipment and ventilation treatment equipment
CN111043072B (en) * 2019-11-26 2022-03-08 奇鋐科技股份有限公司 Disc type fan wheel structure
US11365750B2 (en) 2019-12-27 2022-06-21 Asia Vital Components Co., Ltd. Tray-type fan impeller structure
CN112096664B (en) * 2020-09-28 2022-05-27 江苏释元环保科技有限公司 Fan for ventilation system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE676527C (en) * 1936-12-11 1939-06-06 Ventilatorzug M B H Ges Centrifugal blower
US3165257A (en) * 1962-10-03 1965-01-12 Howard C Edwards Pressure inducer
DE2418826B2 (en) * 1974-04-19 1977-06-02 W.C. Heraeus Gmbh, 6450 Hanau THERMAL CHAMBER
DE2550481C3 (en) * 1975-11-11 1978-09-28 Motoren- Und Turbinen-Union Friedrichshafen Gmbh, 7990 Friedrichshafen Cooling device for the coolant of a liquid-cooled internal combustion engine
JPS6166898A (en) * 1984-09-07 1986-04-05 Matsushita Electric Ind Co Ltd Electrically driven blower
SE467982B (en) * 1990-12-19 1992-10-12 Kamyr Ab SUSPENSION PUMP WITH BUILT-IN VACUUM PUMP, WHICH VACUUM PUMP HAS VARIABLE CAPACITY
DE4141359A1 (en) * 1991-12-14 1993-06-17 Sel Alcatel Ag Impeller for radial-flow fan - Has numerous apertures in surface of impeller underside opposite to impeller suction aperture.

Also Published As

Publication number Publication date
SK120495A3 (en) 1996-02-07
MY111675A (en) 2000-10-31
DE4403224A1 (en) 1995-08-10
FI954669A0 (en) 1995-10-02
SK280010B6 (en) 1999-07-12
NO953829L (en) 1995-09-28
EP0692076B1 (en) 1998-07-01
CA2159803A1 (en) 1995-08-10
PL175646B1 (en) 1999-01-29
ATE167917T1 (en) 1998-07-15
EP0692076A1 (en) 1996-01-17
CN1123050A (en) 1996-05-22
CN1076447C (en) 2001-12-19
JPH08508806A (en) 1996-09-17
DE59502674D1 (en) 1998-08-06
JP3490089B2 (en) 2004-01-26
LV12170B (en) 1999-01-20
ES2118556T3 (en) 1998-09-16
NO953829D0 (en) 1995-09-28
CZ285753B6 (en) 1999-10-13
WO1995021330A1 (en) 1995-08-10
TW315699U (en) 1997-09-11
SI0692076T1 (en) 1999-02-28
DK0692076T3 (en) 1999-04-12
PL310814A1 (en) 1996-01-08
FI954669A (en) 1995-10-02
AU1455795A (en) 1995-08-21
CZ242395A3 (en) 1996-02-14

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