EP0843102A3 - Fan assembly having increased fan blade area - Google Patents

Fan assembly having increased fan blade area Download PDF

Info

Publication number
EP0843102A3
EP0843102A3 EP19970119447 EP97119447A EP0843102A3 EP 0843102 A3 EP0843102 A3 EP 0843102A3 EP 19970119447 EP19970119447 EP 19970119447 EP 97119447 A EP97119447 A EP 97119447A EP 0843102 A3 EP0843102 A3 EP 0843102A3
Authority
EP
European Patent Office
Prior art keywords
fan blades
fan
increased
blade area
fixed
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.)
Withdrawn
Application number
EP19970119447
Other languages
German (de)
French (fr)
Other versions
EP0843102A2 (en
Inventor
Günther Mühlbach
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.)
Eaton Corp
Original Assignee
Eaton 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 Eaton Corp filed Critical Eaton Corp
Publication of EP0843102A2 publication Critical patent/EP0843102A2/en
Publication of EP0843102A3 publication Critical patent/EP0843102A3/en
Withdrawn legal-status Critical Current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
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • F04D29/326—Rotors specially for elastic fluids for axial flow pumps for axial flow fans comprising a rotating shroud
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/02—Multi-stage pumps
    • F04D19/022—Multi-stage pumps with concentric rows of vanes
    • 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
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • F04D29/327—Rotors specially for elastic fluids for axial flow pumps for axial flow fans with non identical blades

Abstract

A fan assembly (11) is adapted to be driven by an input drive (V), and comprises an annular hub (15) fixed to rotate with the input drive, the fan assembly further comprising a plurality of fan blades. The plurality of fan blades includes a plurality of inner fan blades (17) fixed relative to the annular hub (15) and extending radially outward therefrom, and an annular ring member (23) disposed about the plurality of inner fan blades (17) and fixed to the radially outer extent thereof. A plurality of outer fan blades (25) is fixed relative to the annular ring member (23) and extends radially outward. There is a greater number of outer fan blades (25) than inner fan blades (17), thus increasing the air flow capability of the fan, as well as the efficiency thereof.
EP19970119447 1996-11-13 1997-11-06 Fan assembly having increased fan blade area Withdrawn EP0843102A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US74858796A 1996-11-13 1996-11-13
US748587 1996-11-13

Publications (2)

Publication Number Publication Date
EP0843102A2 EP0843102A2 (en) 1998-05-20
EP0843102A3 true EP0843102A3 (en) 1999-02-24

Family

ID=25010085

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970119447 Withdrawn EP0843102A3 (en) 1996-11-13 1997-11-06 Fan assembly having increased fan blade area

Country Status (3)

Country Link
EP (1) EP0843102A3 (en)
JP (1) JPH10141285A (en)
BR (1) BR9705376A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100551582B1 (en) * 1998-12-31 2006-05-17 한라공조주식회사 Axial Flow Fan
KR101196493B1 (en) 2009-06-28 2012-11-01 발뮤다 가부시키가이샤 Axial fan
CN102269180A (en) * 2011-07-13 2011-12-07 广东志高空调有限公司 Impellor structure and cross-flow fan
BE1030046B1 (en) * 2021-12-17 2023-07-17 Safran Aero Boosters MOBILE IMPELLER WITH SEVERAL ROWS OF BLADE
BE1030473B1 (en) * 2022-04-21 2023-11-27 Safran Aero Boosters ROTOR WITH MULTIPLE ROWS OF BLADE

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1986151A (en) * 1933-08-05 1935-01-01 Internat Engineering Inc Fan
GB460781A (en) * 1935-08-06 1937-02-04 William Wycliffe Spooner Improvements in or relating to fans, rotors, and the like
US2790596A (en) * 1953-08-06 1957-04-30 Leo M Stirling Dual fan construction
DE2030238A1 (en) * 1970-06-19 1971-12-23 Daimler Benz Ag Impeller for axial fans
FR2175319A5 (en) * 1972-03-09 1973-10-19 Air Ind
DE8801750U1 (en) * 1988-02-11 1989-06-08 Robert Bosch Gmbh, 7000 Stuttgart, De
DE9403217U1 (en) * 1994-02-26 1995-06-29 Behr Gmbh & Co Axial fan
US5454695A (en) * 1994-07-05 1995-10-03 Ford Motor Company High output engine cooling fan
EP0761979A1 (en) * 1995-08-03 1997-03-12 Valeo Thermique Moteur Axial flow fan

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4569631A (en) 1984-08-06 1986-02-11 Airflow Research And Manufacturing Corp. High strength fan
JP3028422B2 (en) 1990-07-30 2000-04-04 臼井国際産業株式会社 Axial fan with centrifugal component
US5358382A (en) 1993-07-21 1994-10-25 Eaton Corporation Fan and fan drive assembly

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1986151A (en) * 1933-08-05 1935-01-01 Internat Engineering Inc Fan
GB460781A (en) * 1935-08-06 1937-02-04 William Wycliffe Spooner Improvements in or relating to fans, rotors, and the like
US2790596A (en) * 1953-08-06 1957-04-30 Leo M Stirling Dual fan construction
DE2030238A1 (en) * 1970-06-19 1971-12-23 Daimler Benz Ag Impeller for axial fans
FR2175319A5 (en) * 1972-03-09 1973-10-19 Air Ind
DE8801750U1 (en) * 1988-02-11 1989-06-08 Robert Bosch Gmbh, 7000 Stuttgart, De
DE9403217U1 (en) * 1994-02-26 1995-06-29 Behr Gmbh & Co Axial fan
US5454695A (en) * 1994-07-05 1995-10-03 Ford Motor Company High output engine cooling fan
EP0761979A1 (en) * 1995-08-03 1997-03-12 Valeo Thermique Moteur Axial flow fan

Also Published As

Publication number Publication date
BR9705376A (en) 1999-09-21
JPH10141285A (en) 1998-05-26
EP0843102A2 (en) 1998-05-20

Similar Documents

Publication Publication Date Title
US6224335B1 (en) Automotive air conditioning fan assembly
EP1087100A3 (en) Compressor rotor configuration
EP1357337A4 (en) Fan guard of fan unit
AU1477701A (en) Axial fan
EP0955469A3 (en) Impeller of fan
EP0955468A3 (en) Centrifugal flow fan and fan/orifice assembly
EP1016788A3 (en) Axial flow fan
EP1527997A3 (en) Flade gas turbine engine with fixed geometry inlet
CA2487108A1 (en) Improved turbine
EP1084951A3 (en) A nacelle assembly for a gas turbine engine
EP0801230A3 (en) Swept fan blade
EP1260673A3 (en) Turbine cooling circuit
CA2015521A1 (en) Shroud assembly for axial flow fans
EP1184575A3 (en) Turbofan for air conditioner
EP1862675A3 (en) Axial fan assembly
EP1688623A4 (en) Blade wheel for centrifugal blower and centerifugal blower with the same
EP1398474A3 (en) Compressor bleed case
EP1550811A3 (en) Fan for refrigerators
EP1361367A3 (en) Turbo fan and air conditioner having the same applied thereto
US7788764B2 (en) Portable suction device for cleaning jobs
CA2123025A1 (en) Ventilator Fan Device
EP2975285A3 (en) Enhanced fan and fan drive assembly
ATE196432T1 (en) AGITATOR
GB2383096A (en) Axial flow fan
EP0881394A3 (en) Fan with blades having integral rotating venturi

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AKX Designation fees paid
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19990825

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566