EP3504443C0 - AXIAL FAN WITH OPTIMIZED BLADE TORQUE NEAR THE IMPELLER HUB - Google Patents

AXIAL FAN WITH OPTIMIZED BLADE TORQUE NEAR THE IMPELLER HUB

Info

Publication number
EP3504443C0
EP3504443C0 EP17758042.0A EP17758042A EP3504443C0 EP 3504443 C0 EP3504443 C0 EP 3504443C0 EP 17758042 A EP17758042 A EP 17758042A EP 3504443 C0 EP3504443 C0 EP 3504443C0
Authority
EP
European Patent Office
Prior art keywords
axial fan
impeller hub
torque near
blade torque
optimized blade
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.)
Active
Application number
EP17758042.0A
Other languages
German (de)
French (fr)
Other versions
EP3504443A1 (en
EP3504443B1 (en
Inventor
Jens Dybdahl
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.)
DACS AS
Original Assignee
DACS AS
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 DACS AS filed Critical DACS AS
Publication of EP3504443A1 publication Critical patent/EP3504443A1/en
Application granted granted Critical
Publication of EP3504443C0 publication Critical patent/EP3504443C0/en
Publication of EP3504443B1 publication Critical patent/EP3504443B1/en
Active 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
    • F04D29/26—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)
EP17758042.0A 2016-08-25 2017-08-22 Axial flow fan with optimised blade twist close to the impeller hub Active EP3504443B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA201670645A DK179200B1 (en) 2016-08-25 2016-08-25 Improved wing for an axial flow fan
PCT/DK2017/050272 WO2018036598A1 (en) 2016-08-25 2017-08-22 Axial flow fan with optimised blade twist close to the impeller hub

Publications (3)

Publication Number Publication Date
EP3504443A1 EP3504443A1 (en) 2019-07-03
EP3504443C0 true EP3504443C0 (en) 2023-07-19
EP3504443B1 EP3504443B1 (en) 2023-07-19

Family

ID=61008654

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17758042.0A Active EP3504443B1 (en) 2016-08-25 2017-08-22 Axial flow fan with optimised blade twist close to the impeller hub

Country Status (4)

Country Link
EP (1) EP3504443B1 (en)
DK (1) DK179200B1 (en)
ES (1) ES2951073T3 (en)
WO (1) WO2018036598A1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2027745A (en) * 1933-09-13 1936-01-14 Jeffrey Mfg Co Ventilator
US4569632A (en) * 1983-11-08 1986-02-11 Airflow Research And Manufacturing Corp. Back-skewed fan
US6065937A (en) * 1998-02-03 2000-05-23 Siemens Canada Limited High efficiency, axial flow fan for use in an automotive cooling system
KR100332539B1 (en) * 1998-12-31 2002-04-13 신영주 Axial flow fan
US7249931B2 (en) * 2002-03-30 2007-07-31 University Of Central Florida Research Foundation, Inc. High efficiency air conditioner condenser fan with performance enhancements
ATE444448T1 (en) * 2006-05-31 2009-10-15 Bosch Gmbh Robert AXIAL FAN ARRANGEMENT
US20160319836A1 (en) * 2013-12-17 2016-11-03 Dacs A/S Axial flow fan with blades twisted according to a blade pitch ratio that decreases (quasi) linearly with the radial position
WO2018229081A1 (en) * 2017-06-12 2018-12-20 Valeo Systemes Thermiques Motor vehicle fan

Also Published As

Publication number Publication date
DK179200B1 (en) 2018-01-29
DK201670645A1 (en) 2018-01-29
ES2951073T3 (en) 2023-10-17
EP3504443A1 (en) 2019-07-03
WO2018036598A1 (en) 2018-03-01
EP3504443B1 (en) 2023-07-19

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