FI954669A - Wheel at a centrifugal fan - Google Patents

Wheel at a centrifugal fan Download PDF

Info

Publication number
FI954669A
FI954669A FI954669A FI954669A FI954669A FI 954669 A FI954669 A FI 954669A FI 954669 A FI954669 A FI 954669A FI 954669 A FI954669 A FI 954669A FI 954669 A FI954669 A FI 954669A
Authority
FI
Finland
Prior art keywords
wheel
centrifugal fan
apertures
impeller
curve
Prior art date
Application number
FI954669A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI954669A0 (en
Inventor
Mathias Varnhorst
Cathleen Boehme
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 FI954669A0 publication Critical patent/FI954669A0/en
Publication of FI954669A publication Critical patent/FI954669A/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

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).
FI954669A 1994-02-03 1995-10-02 Wheel at a centrifugal fan FI954669A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4403224A DE4403224A1 (en) 1994-02-03 1994-02-03 Radial fan wheel
PCT/EP1995/000077 WO1995021330A1 (en) 1994-02-03 1995-01-11 Radial impeller

Publications (2)

Publication Number Publication Date
FI954669A0 FI954669A0 (en) 1995-10-02
FI954669A true FI954669A (en) 1995-10-02

Family

ID=6509329

Family Applications (1)

Application Number Title Priority Date Filing Date
FI954669A FI954669A (en) 1994-02-03 1995-10-02 Wheel at a centrifugal fan

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 (17)

* 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 blower and its impeller assembly
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
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
PL310814A1 (en) 1996-01-08
SK280010B6 (en) 1999-07-12
CZ285753B6 (en) 1999-10-13
EP0692076A1 (en) 1996-01-17
CZ242395A3 (en) 1996-02-14
SI0692076T1 (en) 1999-02-28
JPH08508806A (en) 1996-09-17
SK120495A3 (en) 1996-02-07
WO1995021330A1 (en) 1995-08-10
ES2118556T3 (en) 1998-09-16
FI954669A0 (en) 1995-10-02
DK0692076T3 (en) 1999-04-12
CN1076447C (en) 2001-12-19
LV12170B (en) 1999-01-20
DE59502674D1 (en) 1998-08-06
CN1123050A (en) 1996-05-22
NO953829L (en) 1995-09-28
DE4403224A1 (en) 1995-08-10
AU1455795A (en) 1995-08-21
LV12170A (en) 1998-11-20
MY111675A (en) 2000-10-31
ATE167917T1 (en) 1998-07-15
EP0692076B1 (en) 1998-07-01
CA2159803A1 (en) 1995-08-10
JP3490089B2 (en) 2004-01-26
NO953829D0 (en) 1995-09-28
PL175646B1 (en) 1999-01-29
TW315699U (en) 1997-09-11

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