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ATE556226T1 - CENTRIFUGAL FAN IMPELLER AND CENTRIFUGAL FAN CONTAINING THE IMPELLER - Google Patents

CENTRIFUGAL FAN IMPELLER AND CENTRIFUGAL FAN CONTAINING THE IMPELLER

Info

Publication number
ATE556226T1
ATE556226T1 AT02738677T AT02738677T ATE556226T1 AT E556226 T1 ATE556226 T1 AT E556226T1 AT 02738677 T AT02738677 T AT 02738677T AT 02738677 T AT02738677 T AT 02738677T AT E556226 T1 ATE556226 T1 AT E556226T1
Authority
AT
Austria
Prior art keywords
impeller
centrifugal fan
peripheral edge
blades
main plate
Prior art date
Application number
AT02738677T
Other languages
German (de)
Inventor
Masahito Higashida
Original Assignee
Daikin Ind 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 Ind Ltd filed Critical Daikin Ind Ltd
Application granted granted Critical
Publication of ATE556226T1 publication Critical patent/ATE556226T1/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
    • F04D29/66—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.
AT02738677T 2001-06-28 2002-06-12 CENTRIFUGAL FAN IMPELLER AND CENTRIFUGAL FAN CONTAINING THE IMPELLER ATE556226T1 (en)

Applications Claiming Priority (3)

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

Publications (1)

Publication Number Publication Date
ATE556226T1 true ATE556226T1 (en) 2012-05-15

Family

ID=26617733

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02738677T ATE556226T1 (en) 2001-06-28 2002-06-12 CENTRIFUGAL FAN IMPELLER AND CENTRIFUGAL FAN CONTAINING THE IMPELLER

Country Status (5)

Country Link
EP (1) EP1411248B8 (en)
CN (2) CN2575343Y (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 Pump Low Turbulence 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
EP1411248B1 (en) 2012-05-02
EP1411248A1 (en) 2004-04-21
CN1395045A (en) 2003-02-05
WO2003002873A1 (en) 2003-01-09
EP1411248B8 (en) 2012-06-20
CN1212479C (en) 2005-07-27
EP1411248A4 (en) 2010-03-31
CN2575343Y (en) 2003-09-24
ES2387063T3 (en) 2012-09-12

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