EP1624196A3 - Shroud and blower using the same - Google Patents

Shroud and blower using the same Download PDF

Info

Publication number
EP1624196A3
EP1624196A3 EP05015433A EP05015433A EP1624196A3 EP 1624196 A3 EP1624196 A3 EP 1624196A3 EP 05015433 A EP05015433 A EP 05015433A EP 05015433 A EP05015433 A EP 05015433A EP 1624196 A3 EP1624196 A3 EP 1624196A3
Authority
EP
European Patent Office
Prior art keywords
ring portion
air
airflow
fan
shroud
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
EP05015433A
Other languages
German (de)
French (fr)
Other versions
EP1624196A2 (en
EP1624196B1 (en
Inventor
Atsunori Hashimoto
Hirotaka Takaba
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.)
Denso Corp
Original Assignee
Denso Corp
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 Denso Corp filed Critical Denso Corp
Publication of EP1624196A2 publication Critical patent/EP1624196A2/en
Publication of EP1624196A3 publication Critical patent/EP1624196A3/en
Application granted granted Critical
Publication of EP1624196B1 publication Critical patent/EP1624196B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially 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
    • F04D29/66—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)
  • Other Air-Conditioning Systems (AREA)

Abstract

A shroud includes a ring portion (210) surrounding a radial outer rim of an axial flow fan (100) for blowing air, and an air introducing part (220), for introducing air to the ring portion (210), enlarged from the ring portion (210) towards upstream in the airflow. The fan is located opposite to a heat exchanger (1) positioned upstream of the fan (100) in the airflow, and a center of the ring portion (210) is eccentric with respect to a center of the air introducing part (220). In the shroud, an airflow regulating plate (221) protrudes toward an upstream side of the airflow and forms a circular arc shape concentric with the ring portion (210) within a larger-area part (220a) of the air introducing part (220), which is formed due to the eccentrically located ring portion (210). Therefore, the first noise component of fan rotation noise can be effectively reduced without reducing an air amount passing through a heat exchanger.
EP05015433.5A 2004-08-02 2005-07-15 Shroud and blower using the same Expired - Fee Related EP1624196B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004225830A JP4380454B2 (en) 2004-08-02 2004-08-02 Shroud

Publications (3)

Publication Number Publication Date
EP1624196A2 EP1624196A2 (en) 2006-02-08
EP1624196A3 true EP1624196A3 (en) 2012-08-08
EP1624196B1 EP1624196B1 (en) 2014-03-26

Family

ID=35266869

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05015433.5A Expired - Fee Related EP1624196B1 (en) 2004-08-02 2005-07-15 Shroud and blower using the same

Country Status (3)

Country Link
EP (1) EP1624196B1 (en)
JP (1) JP4380454B2 (en)
CN (1) CN100404813C (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090220334A1 (en) * 2008-02-28 2009-09-03 Spx Cooling Technologies, Inc. Fan shroud for heat exchange tower fans
JP2010169007A (en) * 2009-01-23 2010-08-05 Calsonic Kansei Corp Fan shroud structure
JP5868294B2 (en) * 2012-09-03 2016-02-24 シャープ株式会社 Hair dryer
JP5965296B2 (en) * 2012-11-22 2016-08-03 株式会社豊田自動織機 Cooling fan device for vehicle
JP6126421B2 (en) * 2013-03-21 2017-05-10 三菱重工オートモーティブサーマルシステムズ株式会社 Motor fan
JP6156061B2 (en) * 2013-10-29 2017-07-05 株式会社デンソー Blower
FR3023870B1 (en) * 2014-07-15 2016-07-29 Peugeot Citroen Automobiles Sa MOTOR FAN GROUP INCORPORATING A NOZZLE AND A THERMAL SCREEN
JP6390348B2 (en) * 2014-10-29 2018-09-19 株式会社デンソー Blower
CN104879319B (en) * 2015-05-25 2017-01-18 广东美的环境电器制造有限公司 Base for bladeless fan and bladeless fan
JP6583551B2 (en) * 2016-06-09 2019-10-02 株式会社デンソー Blower

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56162469U (en) * 1980-04-30 1981-12-03
JP2003343494A (en) * 2002-05-27 2003-12-03 Mitsubishi Heavy Ind Ltd Cooling fan

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0755293Y2 (en) * 1989-06-28 1995-12-20 アイシン化工株式会社 Cooling device for heat exchanger
JP3741255B2 (en) * 2000-03-10 2006-02-01 株式会社丸山製作所 Centrifugal blower and portable work machine
JP4442029B2 (en) * 2000-12-15 2010-03-31 パナソニック株式会社 Blower
CN2526566Y (en) * 2002-01-07 2002-12-18 九德松益股份有限公司 Low-noise fan
KR100848569B1 (en) * 2002-07-15 2008-07-25 한라공조주식회사 A fan shroud

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56162469U (en) * 1980-04-30 1981-12-03
JP2003343494A (en) * 2002-05-27 2003-12-03 Mitsubishi Heavy Ind Ltd Cooling fan

Also Published As

Publication number Publication date
EP1624196A2 (en) 2006-02-08
CN100404813C (en) 2008-07-23
JP4380454B2 (en) 2009-12-09
JP2006046113A (en) 2006-02-16
CN1734071A (en) 2006-02-15
EP1624196B1 (en) 2014-03-26

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