CA2512550A1 - Cooling fan with reinforced blade - Google Patents

Cooling fan with reinforced blade Download PDF

Info

Publication number
CA2512550A1
CA2512550A1 CA002512550A CA2512550A CA2512550A1 CA 2512550 A1 CA2512550 A1 CA 2512550A1 CA 002512550 A CA002512550 A CA 002512550A CA 2512550 A CA2512550 A CA 2512550A CA 2512550 A1 CA2512550 A1 CA 2512550A1
Authority
CA
Canada
Prior art keywords
trailing edge
reinforced
fan
fan blade
cooling fan
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
CA002512550A
Other languages
French (fr)
Other versions
CA2512550C (en
Inventor
Walter Boyd
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.)
Delta T Corp
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2512550A1 publication Critical patent/CA2512550A1/en
Application granted granted Critical
Publication of CA2512550C publication Critical patent/CA2512550C/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
    • F04D29/388—Blades characterised by construction
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/147—Construction, i.e. structural features, e.g. of weight-saving hollow blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/088—Ceiling fans
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Abstract

A circulator device comprising a large diameter fan having reinforced fan blades with a tapered airfoil shape is disclosed. The fan blades may be formed using an extrusion method of fabrication, wherein each fan blade (316) may comprise a reinforced trailing edge (514) with a downwardly extending flange.
The benefit of forming each fan blade with a reinforced trailing edge (514) of the present invention results in improved structural characteristics such that the trailing edge of each fan blade (316) may be fabricated longer so as to improve aerodynamic performance. Also, the reinforced trailing edge resists tearing that my occur during extrusion by adding the bent flanged region to at least one distal end of the trailing edge. For example, the bent portion (538) of the trailing edge tends to rigidly orient the extruded material in a stabilized position more readily during formation.
CA002512550A 2003-01-06 2004-01-05 Cooling fan with reinforced blade Expired - Lifetime CA2512550C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/338,820 US6939108B2 (en) 2003-01-06 2003-01-06 Cooling fan with reinforced blade
US10/338,820 2003-01-06
PCT/US2004/000125 WO2004063571A2 (en) 2003-01-06 2004-01-05 Cooling fan with reinforced blade

Publications (2)

Publication Number Publication Date
CA2512550A1 true CA2512550A1 (en) 2004-07-29
CA2512550C CA2512550C (en) 2008-12-30

Family

ID=32681514

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002512550A Expired - Lifetime CA2512550C (en) 2003-01-06 2004-01-05 Cooling fan with reinforced blade

Country Status (21)

Country Link
US (1) US6939108B2 (en)
EP (1) EP1588024B1 (en)
JP (1) JP4481297B2 (en)
KR (1) KR100743914B1 (en)
CN (1) CN100504036C (en)
AT (1) ATE466168T1 (en)
AU (1) AU2004204417B2 (en)
BR (1) BRPI0406637B1 (en)
CA (1) CA2512550C (en)
CR (1) CR7890A (en)
DE (2) DE04700218T1 (en)
DK (1) DK1588024T3 (en)
EC (1) ECSP055897A (en)
ES (1) ES2265805T3 (en)
IL (1) IL169284A (en)
MX (1) MXPA05007325A (en)
NO (1) NO20053757L (en)
NZ (1) NZ541660A (en)
RU (1) RU2319865C2 (en)
WO (1) WO2004063571A2 (en)
ZA (1) ZA200504895B (en)

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Also Published As

Publication number Publication date
US6939108B2 (en) 2005-09-06
EP1588024B1 (en) 2010-04-28
CN1723338A (en) 2006-01-18
RU2005125046A (en) 2006-02-20
AU2004204417A1 (en) 2004-07-29
JP2006516315A (en) 2006-06-29
ATE466168T1 (en) 2010-05-15
EP1588024A4 (en) 2007-03-14
KR20050092385A (en) 2005-09-21
WO2004063571A3 (en) 2004-11-11
NZ541660A (en) 2008-08-29
ZA200504895B (en) 2006-11-29
NO20053757L (en) 2005-10-05
DE602004026824D1 (en) 2010-06-10
NO20053757D0 (en) 2005-08-05
IL169284A (en) 2012-02-29
CA2512550C (en) 2008-12-30
ES2265805T3 (en) 2010-09-21
US20040131470A1 (en) 2004-07-08
CN100504036C (en) 2009-06-24
BRPI0406637B1 (en) 2014-01-28
WO2004063571A2 (en) 2004-07-29
EP1588024A2 (en) 2005-10-26
ECSP055897A (en) 2005-11-22
AU2004204417B2 (en) 2007-01-18
MXPA05007325A (en) 2006-02-17
DK1588024T3 (en) 2010-08-16
CR7890A (en) 2006-07-25
ES2265805T1 (en) 2007-03-01
KR100743914B1 (en) 2007-07-30
BRPI0406637A (en) 2005-12-06
DE04700218T1 (en) 2006-07-13
RU2319865C2 (en) 2008-03-20
JP4481297B2 (en) 2010-06-16

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Effective date: 20240105