EP0955469B1 - Impeller of fan - Google Patents

Impeller of fan Download PDF

Info

Publication number
EP0955469B1
EP0955469B1 EP99106357A EP99106357A EP0955469B1 EP 0955469 B1 EP0955469 B1 EP 0955469B1 EP 99106357 A EP99106357 A EP 99106357A EP 99106357 A EP99106357 A EP 99106357A EP 0955469 B1 EP0955469 B1 EP 0955469B1
Authority
EP
European Patent Office
Prior art keywords
blade
impeller
fan
shows
view
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
EP99106357A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0955469A3 (en
EP0955469A2 (en
Inventor
Yoshiki Izumi
Takashi Sugio
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of EP0955469A2 publication Critical patent/EP0955469A2/en
Publication of EP0955469A3 publication Critical patent/EP0955469A3/en
Application granted granted Critical
Publication of EP0955469B1 publication Critical patent/EP0955469B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • F04D29/384—Blades characterised by form

Definitions

  • An air conditioner adjusts temperature and humidity of the air, and generally comprises an air-cooler, an air-heater, a humidifier, a fan and an air-filter.
  • the present invention addresses the problems discussed above and aims to provide a fan's impeller having less noise and greater static pressure.
  • the impeller of the present invention is less noisy by 2 dB than the conventional impeller. Further, the impeller of the present invention remains less noisy up to point Q2 where 68% of open-air volume is blown. Regarding the static pressure, the impeller of the present invention gains 32% increase compared with the conventional impeller at point Q3 where 60% of open-air volume is blown.
  • Passage centerline B-B is drawn between the midpoints of the leading and trailing edges of blade 12 on a revolution locus.
  • the cross sectional view of blade 12 in the radial direction shows a valley in the upper half and shows a peak in the lower half, with regard to windward.
  • the upper half is defined as a portion between around the centerline B-B and tip 14, and the lower half is defined as a portion between around the centerline B-B and hub 13.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP99106357A 1998-04-14 1999-03-29 Impeller of fan Expired - Lifetime EP0955469B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10234498A JP3204208B2 (ja) 1998-04-14 1998-04-14 斜流送風機羽根車
JP10234498 1998-04-14

Publications (3)

Publication Number Publication Date
EP0955469A2 EP0955469A2 (en) 1999-11-10
EP0955469A3 EP0955469A3 (en) 2001-02-28
EP0955469B1 true EP0955469B1 (en) 2004-10-20

Family

ID=14324890

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99106357A Expired - Lifetime EP0955469B1 (en) 1998-04-14 1999-03-29 Impeller of fan

Country Status (5)

Country Link
EP (1) EP0955469B1 (ja)
JP (1) JP3204208B2 (ja)
CN (1) CN1107808C (ja)
ES (1) ES2230759T3 (ja)
MY (1) MY123252A (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8894354B2 (en) 2010-09-07 2014-11-25 Dyson Technology Limited Fan
US9328739B2 (en) 2012-01-19 2016-05-03 Dyson Technology Limited Fan
US9568021B2 (en) 2012-05-16 2017-02-14 Dyson Technology Limited Fan
US9568006B2 (en) 2012-05-16 2017-02-14 Dyson Technology Limited Fan
DE102022119333A1 (de) 2022-08-02 2024-02-08 Technische Universität Darmstadt, Körperschaft des öffentlichen Rechts Strömungsmaschine mit einer verstellbaren Axiallaufradanordnung

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3473549B2 (ja) * 2000-04-28 2003-12-08 松下電器産業株式会社 送風機羽根車とその送風機羽根車を備えた空気調和機
BR0003706A (pt) 2000-05-30 2002-02-13 Tecsis Tecnologia E Sist S Ava Pá para ventilador axial de baixo ruìdo e alta eficiência
DE10110243A1 (de) * 2001-03-05 2002-09-12 Glen Dimplex Deutschland Gmbh Heizlüfter
TW524928B (en) * 2001-04-26 2003-03-21 Daikin Ind Ltd Blower and air conditioner with the same
KR100761153B1 (ko) * 2001-06-12 2007-09-21 한라공조주식회사 축류팬
JP3960776B2 (ja) * 2001-11-09 2007-08-15 松下電器産業株式会社 空調用送風機羽根車
KR100487339B1 (ko) * 2002-11-18 2005-05-03 엘지전자 주식회사 축류팬
KR100484824B1 (ko) * 2002-11-19 2005-04-22 엘지전자 주식회사 축류팬
KR101187223B1 (ko) 2005-04-06 2012-10-02 한라공조주식회사 축류팬
JP4631563B2 (ja) * 2005-06-29 2011-02-16 パナソニック株式会社 送風機
JP4802694B2 (ja) * 2005-12-13 2011-10-26 パナソニック株式会社 送風機羽根車及び空気調和機
JP5003198B2 (ja) * 2006-06-19 2012-08-15 パナソニック株式会社 空気調和機の室外機
JP4967883B2 (ja) * 2007-07-23 2012-07-04 パナソニック株式会社 斜流送風機羽根車と空気調和機
JP4967882B2 (ja) * 2007-07-23 2012-07-04 パナソニック株式会社 斜流送風機羽根車と空気調和機
GB2468312A (en) 2009-03-04 2010-09-08 Dyson Technology Ltd Fan assembly
GB2476171B (en) 2009-03-04 2011-09-07 Dyson Technology Ltd Tilting fan stand
JP2012026402A (ja) * 2010-07-27 2012-02-09 Panasonic Corp 斜流ファン及びこれを備えた空気調和機
GB2486019B (en) 2010-12-02 2013-02-20 Dyson Technology Ltd A fan
CN102003412B (zh) * 2010-12-03 2014-04-02 陈新 鸟翅型高压轴流风机叶片
CN103161759B (zh) * 2011-12-09 2016-03-02 珠海格力电器股份有限公司 轴流风叶
EP2850324A2 (en) 2012-05-16 2015-03-25 Dyson Technology Limited A fan
FR2991012B1 (fr) * 2012-05-23 2016-08-12 Valeo Systemes Thermiques Ventilateur pour automobile a pales optimisees
GB2503907B (en) 2012-07-11 2014-05-28 Dyson Technology Ltd A fan assembly
WO2014162552A1 (ja) 2013-04-04 2014-10-09 三菱電機株式会社 プロペラファン、送風装置及び室外機
GB2530906B (en) 2013-07-09 2017-05-10 Dyson Technology Ltd A fan assembly
DE102015216579A1 (de) 2015-08-31 2017-03-02 Ziehl-Abegg Se Lüfterrad, Lüfter und System mit mindestens einem Lüfter
RU2721214C2 (ru) * 2015-11-16 2020-05-18 Р.Е.М. Холдинг С.Р.Л. Малошумная и высокоэффективная лопасть для осевых вентиляторов и роторов и осевой вентилятор или ротор, содержащий упомянутую лопасть
US11519422B2 (en) * 2018-05-09 2022-12-06 York Guangzhou Air Conditioning And Refrigeration Co., Ltd. Blade and axial flow impeller using same
CN108506247A (zh) * 2018-05-09 2018-09-07 约克广州空调冷冻设备有限公司 叶片及使用其的轴流叶轮
CN116398471A (zh) * 2023-04-11 2023-07-07 威海克莱特菲尔风机股份有限公司 一种前掠式叶片叶轮及构成轴流风机

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1964525A (en) * 1932-07-30 1934-06-26 Gen Electric Fan blade
US3416725A (en) * 1967-10-12 1968-12-17 Acme Engineering And Mfg Corp Dihedral bladed ventilating fan
JPS5783696A (en) * 1980-11-14 1982-05-25 Nippon Denso Co Ltd Fan
US5906179A (en) * 1997-06-27 1999-05-25 Siemens Canada Limited High efficiency, low solidity, low weight, axial flow fan

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8894354B2 (en) 2010-09-07 2014-11-25 Dyson Technology Limited Fan
US9328739B2 (en) 2012-01-19 2016-05-03 Dyson Technology Limited Fan
US9568021B2 (en) 2012-05-16 2017-02-14 Dyson Technology Limited Fan
US9568006B2 (en) 2012-05-16 2017-02-14 Dyson Technology Limited Fan
DE102022119333A1 (de) 2022-08-02 2024-02-08 Technische Universität Darmstadt, Körperschaft des öffentlichen Rechts Strömungsmaschine mit einer verstellbaren Axiallaufradanordnung

Also Published As

Publication number Publication date
MY123252A (en) 2006-05-31
EP0955469A3 (en) 2001-02-28
CN1232143A (zh) 1999-10-20
EP0955469A2 (en) 1999-11-10
JPH11294389A (ja) 1999-10-26
CN1107808C (zh) 2003-05-07
JP3204208B2 (ja) 2001-09-04
ES2230759T3 (es) 2005-05-01

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