EP1411248B8 - Impeller for centrifugal fan and centrifugal fan equipped with the same - Google Patents

Impeller for centrifugal fan and centrifugal fan equipped with the same Download PDF

Info

Publication number
EP1411248B8
EP1411248B8 EP02738677A EP02738677A EP1411248B8 EP 1411248 B8 EP1411248 B8 EP 1411248B8 EP 02738677 A EP02738677 A EP 02738677A EP 02738677 A EP02738677 A EP 02738677A EP 1411248 B8 EP1411248 B8 EP 1411248B8
Authority
EP
European Patent Office
Prior art keywords
impeller
centrifugal fan
peripheral edge
blades
main plate
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.)
Expired - Lifetime
Application number
EP02738677A
Other languages
German (de)
French (fr)
Other versions
EP1411248A4 (en
EP1411248B1 (en
EP1411248A1 (en
Inventor
Masahito c/o Kanaoka Factory Sakai Plant DAIKIN INDUSTRIES LTD. HIGASHIDA
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.)
Daikin Industries Ltd
Original Assignee
Daikin Industries Ltd
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 JP2001196177A external-priority patent/JP2003013885A/en
Priority claimed from JP2001196178A external-priority patent/JP4736252B2/en
Application filed by Daikin Industries Ltd filed Critical Daikin Industries Ltd
Publication of EP1411248A1 publication Critical patent/EP1411248A1/en
Publication of EP1411248A4 publication Critical patent/EP1411248A4/en
Publication of EP1411248B1 publication Critical patent/EP1411248B1/en
Application granted granted Critical
Publication of EP1411248B8 publication Critical patent/EP1411248B8/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
    • F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid 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
    • F04D29/26—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
    • F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
    • F04D29/283—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis rotors of the squirrel-cage type
    • 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
    • F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence

Landscapes

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

Abstract

An impeller allowing noise to be reduced and a low noise centrifugal blower, the multi-vane centrifugal blower (40) comprising mainly an impeller (43), a casing (11) covering the impeller, and a motor (14) rotating the impeller, wherein the impeller is so formed that a number of blades (33) are fixed to the outer peripheral edge of a disk-like main plate (61) and the other ends of the plurality of blades are connected to each other through an annular side plate (62), the plurality of blades are formed on the outer peripheral edge of the main plate at equal intervals in rotating direction, an irregular waveform shape (64) is formed near the inner peripheral edge part of the number of blades along the periphery of the inner peripheral edge part, and an irregular waveform (66) is formed on the surface of the side plate on the main plate side.
EP02738677A 2001-06-28 2002-06-12 Impeller for centrifugal fan and centrifugal fan equipped with the same Expired - Lifetime EP1411248B8 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2001196177 2001-06-28
JP2001196177A JP2003013885A (en) 2001-06-28 2001-06-28 Impeller of centrifugal blower and centrifugal blower equipped with impeller
JP2001196178A JP4736252B2 (en) 2001-06-28 2001-06-28 Impeller of multi-blade fan and multi-blade fan equipped with the impeller
JP2001196178 2001-06-28
PCT/JP2002/005882 WO2003002873A1 (en) 2001-06-28 2002-06-12 Impeller of centrifugal blower, and centrifugal blower having the impeller

Publications (4)

Publication Number Publication Date
EP1411248A1 EP1411248A1 (en) 2004-04-21
EP1411248A4 EP1411248A4 (en) 2010-03-31
EP1411248B1 EP1411248B1 (en) 2012-05-02
EP1411248B8 true EP1411248B8 (en) 2012-06-20

Family

ID=26617733

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02738677A Expired - Lifetime EP1411248B8 (en) 2001-06-28 2002-06-12 Impeller for centrifugal fan and centrifugal fan equipped with the same

Country Status (5)

Country Link
EP (1) EP1411248B8 (en)
CN (2) CN1212479C (en)
AT (1) ATE556226T1 (en)
ES (1) ES2387063T3 (en)
WO (1) WO2003002873A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010018509U1 (en) 2010-02-26 2017-03-15 Ebm-Papst Mulfingen Gmbh & Co. Kg Radial or diagonal fan wheel
JP5287772B2 (en) * 2010-03-16 2013-09-11 株式会社デンソー Centrifugal multi-blade fan
CN103216452B (en) * 2013-04-25 2016-05-11 常州雷利电机科技有限公司 Draining pump
ITCO20130069A1 (en) * 2013-12-18 2015-06-19 Nuovo Pignone Srl MULTI-STAGE CENTRIFUGAL COMPRESSOR
CN105298907A (en) * 2014-06-19 2016-02-03 杨博胜 Fluid pumping low-confusion flow impeller
CN105020176A (en) * 2015-08-20 2015-11-04 珠海格力电器股份有限公司 Fan blade and centrifugal ventilator
CN107328084B (en) * 2017-07-31 2024-01-23 广东美的制冷设备有限公司 Motor support of air conditioner and air conditioner

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1140688A (en) * 1966-02-04 1969-01-22 Turbowerke Meia Ein Veb Fan impeller of a centrifugal fan for handling dust laden gases
JPS5654993A (en) * 1979-10-11 1981-05-15 Hitachi Ltd Centrifugal impeller
JPS5859397A (en) * 1981-10-02 1983-04-08 Hitachi Ltd Centrifugal fan
JPH0239595U (en) * 1988-09-06 1990-03-16
JPH0239593U (en) * 1988-09-06 1990-03-16
JP3191516B2 (en) * 1993-08-25 2001-07-23 松下電器産業株式会社 Electric blower impeller

Also Published As

Publication number Publication date
CN1212479C (en) 2005-07-27
ATE556226T1 (en) 2012-05-15
ES2387063T3 (en) 2012-09-12
EP1411248A4 (en) 2010-03-31
WO2003002873A1 (en) 2003-01-09
EP1411248B1 (en) 2012-05-02
CN2575343Y (en) 2003-09-24
CN1395045A (en) 2003-02-05
EP1411248A1 (en) 2004-04-21

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