EP1087146A3 - Impeller for fan, fan using the same, and air conditioner using the same - Google Patents

Impeller for fan, fan using the same, and air conditioner using the same Download PDF

Info

Publication number
EP1087146A3
EP1087146A3 EP00119461A EP00119461A EP1087146A3 EP 1087146 A3 EP1087146 A3 EP 1087146A3 EP 00119461 A EP00119461 A EP 00119461A EP 00119461 A EP00119461 A EP 00119461A EP 1087146 A3 EP1087146 A3 EP 1087146A3
Authority
EP
European Patent Office
Prior art keywords
blade
fan
air
same
rotating
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.)
Granted
Application number
EP00119461A
Other languages
German (de)
French (fr)
Other versions
EP1087146B1 (en
EP1087146A2 (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 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 EP1087146A2 publication Critical patent/EP1087146A2/en
Publication of EP1087146A3 publication Critical patent/EP1087146A3/en
Application granted granted Critical
Publication of EP1087146B1 publication Critical patent/EP1087146B1/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
    • F04D29/26—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

Landscapes

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

Abstract

It is intended to lessen the effect of the blade end vortex of air generated on the negative pressure surface near the outer circumference of a rotating blade given to the influent air state on other blade rotating behind when it is separated from this blade and flows away. As a result, disturbance of influent air on each succeeding blade is reduced. The influent air coming into each blade is smooth. Unstable phenomena in the succeeding rotating blade such as air separation and decline of speed hardly take place. Accordingly, the blade noise is lowered and the static pressure is enhanced. An impeller (1, 15, 16, 40) has a hub (3, 13) and two blades (2, 14) disposed in the hub. Specifically, each blade has a shape with an aspect ratio (b/L) defined in a range of b/L≤1 where "L" is the chord length of the blade at a representative square mean radius (Rr) position of each blade of the two blades and "b" is the representative actual length in the radial direction.
EP20000119461 1999-09-24 2000-09-15 Impeller for fan, fan using the same, and air conditioner using the same Expired - Lifetime EP1087146B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP27083099 1999-09-24
JP27083099A JP3743222B2 (en) 1999-09-24 1999-09-24 Blower impeller and air conditioner

Publications (3)

Publication Number Publication Date
EP1087146A2 EP1087146A2 (en) 2001-03-28
EP1087146A3 true EP1087146A3 (en) 2002-04-03
EP1087146B1 EP1087146B1 (en) 2008-08-27

Family

ID=17491616

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000119461 Expired - Lifetime EP1087146B1 (en) 1999-09-24 2000-09-15 Impeller for fan, fan using the same, and air conditioner using the same

Country Status (5)

Country Link
EP (1) EP1087146B1 (en)
JP (1) JP3743222B2 (en)
CN (1) CN1297751C (en)
ES (1) ES2312316T3 (en)
MY (1) MY131508A (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2372785B (en) * 2001-01-11 2004-05-05 Lg Electronics Inc Fan for condenser of refrigerator
KR100487339B1 (en) * 2002-11-18 2005-05-03 엘지전자 주식회사 axial flow fan
JP4492060B2 (en) * 2003-08-06 2010-06-30 パナソニック株式会社 Blower impeller
KR100547328B1 (en) * 2003-09-05 2006-01-26 엘지전자 주식회사 The fan of air-conditioner outdoor unit
JP4572617B2 (en) * 2004-07-30 2010-11-04 パナソニック株式会社 Blower impeller for air conditioning
JP4572633B2 (en) * 2004-09-08 2010-11-04 パナソニック株式会社 Blower impeller for air conditioning
JP4529613B2 (en) * 2004-09-22 2010-08-25 パナソニック株式会社 Blower impeller
JP4521867B2 (en) * 2004-10-19 2010-08-11 日立アプライアンス株式会社 Air conditioner outdoor unit
JP4747784B2 (en) * 2005-10-31 2011-08-17 パナソニック株式会社 Axial blower impeller
JP4802694B2 (en) * 2005-12-13 2011-10-26 パナソニック株式会社 Blower impeller and air conditioner
JP4749176B2 (en) * 2006-02-14 2011-08-17 シャープ株式会社 Propeller fan and fluid feeder
JP4749175B2 (en) * 2006-02-14 2011-08-17 シャープ株式会社 Propeller fan and fluid feeder
JP4797776B2 (en) * 2006-04-24 2011-10-19 パナソニック株式会社 Mixed flow blower impeller and air conditioner
JP4910534B2 (en) * 2006-07-21 2012-04-04 パナソニック株式会社 Blower impeller
JP2007107530A (en) * 2006-11-16 2007-04-26 Toshiba Kyaria Kk Axial flow fan
CN100584365C (en) * 2006-12-01 2010-01-27 朱炜 Pharmaceutical composition for treating acne
JP4967882B2 (en) * 2007-07-23 2012-07-04 パナソニック株式会社 Mixed flow blower impeller and air conditioner
JP4967883B2 (en) * 2007-07-23 2012-07-04 パナソニック株式会社 Mixed flow blower impeller and air conditioner
JP2012107538A (en) * 2010-11-16 2012-06-07 Panasonic Corp Axial-flow fan or diagonal-flow fan, and air conditioner mounted outdoor unit with the same
WO2013082717A1 (en) 2011-12-06 2013-06-13 Bachellier Carl Roy Improved impeller apparatus and dispersion method
JP6058276B2 (en) * 2012-04-10 2017-01-11 シャープ株式会社 Propeller fan, fluid feeder and mold
CN104641121B (en) * 2012-09-28 2016-08-31 大金工业株式会社 Propeller type fan and possess the air conditioner of this propeller type fan
EP3085966B1 (en) * 2013-12-20 2020-05-20 Mitsubishi Electric Corporation Axial flow fan
US9863423B2 (en) 2014-04-14 2018-01-09 Enevor Inc. Conical impeller and applications thereof
JP6143725B2 (en) * 2014-10-06 2017-06-07 シャープ株式会社 Propeller fan, fluid feeder and mold
JP5905985B1 (en) * 2015-08-18 2016-04-20 山洋電気株式会社 Axial flow fan and serial type axial flow fan
JP6068720B2 (en) * 2016-07-29 2017-01-25 シャープ株式会社 Electric fan or circulator propeller fan, electric fan or circulator, and mold
CN106762823A (en) * 2016-12-28 2017-05-31 东莞市卓奇电子科技有限公司 Multiple flow passages axle stream wind focuses on impeller
CN107013487B (en) * 2017-05-31 2023-03-24 广东美的制冷设备有限公司 Oblique flow wind wheel and air conditioner with same
CN108869358B (en) * 2018-07-09 2023-09-01 广东美的环境电器制造有限公司 Fan with fan body
CN110513329A (en) * 2019-09-30 2019-11-29 广东美的制冷设备有限公司 Axial-flow windwheel and air conditioner with it
JP7258225B2 (en) * 2020-03-24 2023-04-14 三菱電機株式会社 Axial fan, air blower, and refrigeration cycle device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1807397A (en) * 1927-05-20 1931-05-26 Westinghouse Electric & Mfg Co Propeller type pump or fan
US4138859A (en) * 1977-11-02 1979-02-13 General Electric Company Split heat pump outdoor fan arrangement
GB2198190A (en) * 1986-11-28 1988-06-08 Frank L Cook Air turbulence blades for ceiling fans
US4893990A (en) * 1987-10-07 1990-01-16 Matsushita Electric Industrial Co., Ltd. Mixed flow impeller
FR2723150A1 (en) * 1994-07-29 1996-02-02 Morin Philippe Helical blade for air blower

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86209370U (en) * 1986-11-26 1988-02-10 南昌电扇厂 Energy-saving electric fan

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1807397A (en) * 1927-05-20 1931-05-26 Westinghouse Electric & Mfg Co Propeller type pump or fan
US4138859A (en) * 1977-11-02 1979-02-13 General Electric Company Split heat pump outdoor fan arrangement
GB2198190A (en) * 1986-11-28 1988-06-08 Frank L Cook Air turbulence blades for ceiling fans
US4893990A (en) * 1987-10-07 1990-01-16 Matsushita Electric Industrial Co., Ltd. Mixed flow impeller
FR2723150A1 (en) * 1994-07-29 1996-02-02 Morin Philippe Helical blade for air blower

Also Published As

Publication number Publication date
MY131508A (en) 2007-08-30
CN1289897A (en) 2001-04-04
JP3743222B2 (en) 2006-02-08
CN1297751C (en) 2007-01-31
EP1087146B1 (en) 2008-08-27
ES2312316T3 (en) 2009-03-01
JP2001090693A (en) 2001-04-03
EP1087146A2 (en) 2001-03-28

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