EP0293825A1 - Axialgebläserad für die Kühlung des Wärmetauschers des Kühlsystems eines Verbrennungsmotors für Fahrzeuge - Google Patents

Axialgebläserad für die Kühlung des Wärmetauschers des Kühlsystems eines Verbrennungsmotors für Fahrzeuge Download PDF

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Publication number
EP0293825A1
EP0293825A1 EP88108677A EP88108677A EP0293825A1 EP 0293825 A1 EP0293825 A1 EP 0293825A1 EP 88108677 A EP88108677 A EP 88108677A EP 88108677 A EP88108677 A EP 88108677A EP 0293825 A1 EP0293825 A1 EP 0293825A1
Authority
EP
European Patent Office
Prior art keywords
cooling
radiator
axial fan
internal combustion
motor vehicles
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
EP88108677A
Other languages
English (en)
French (fr)
Other versions
EP0293825B1 (de
Inventor
Lorella Annovazzi
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.)
Industrie Magneti Marelli SRL
Original Assignee
Industrie Magneti Marelli SRL
Magneti Marelli SpA
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 Industrie Magneti Marelli SRL, Magneti Marelli SpA filed Critical Industrie Magneti Marelli SRL
Publication of EP0293825A1 publication Critical patent/EP0293825A1/de
Application granted granted Critical
Publication of EP0293825B1 publication Critical patent/EP0293825B1/de
Expired legal-status Critical Current

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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

Definitions

  • the present invention relates in general to axial fans intended to be used for cooling the radiator of the cooling system of internal combustion engines for motor vehicles.
  • the invention concerns an axial fan rotor of the type comprising a hub carrying a ring of radial blades.
  • the object of the present invention is to produce an axial fan rotor of the above-specified type, having a conformation which provides improved performance in terms of efficiency and quietness of operation.
  • each blade has the following combination of characteristics: - the leading edge is curved backwardly and has a hyperbolic profile when viewed both from the front and from the side; - the trailing edge is straight, and - the angle of keying is a hyperbolic function of the radial co-ordinate of the blade.
  • an axial fan rotor for cooling the radiator of the cooling system of an internal combustion engine for motor vehicles is generally indicated 1.
  • the rotor 1 which is conveniently made in one piece from moulded plastics material, comprises a central hub 2 from which a circumferential ring of curved radial blades 3 extends.
  • each blade 3 has a leading edge 3a which, as can clearly be seen in Figures 3 and 4, is curved backwardly and has a hyperbolic profile when viewed both from the side ( Figure 3) and from the front ( Figure 4).
  • the trailing edge 3b of each blade 3 is straight.
  • the angle at which each blade is keyed to the hub 2 varies hyperbolically in dependence on the radial co-ordinate of the blade.
  • the fan according to the invention enables a better performance and quieter operation to be achieved in use, compared with conventional rotors.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP19880108677 1987-06-03 1988-05-31 Axialgebläserad für die Kühlung des Wärmetauschers des Kühlsystems eines Verbrennungsmotors für Fahrzeuge Expired EP0293825B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT5337287U 1987-06-03
IT5337287U IT210736Z2 (it) 1987-06-03 1987-06-03 Girante di ventilatore assiale per il raffreddamento del radiatore del circuito di refrigerazione di un motore a combustione interna per autoveicoli

Publications (2)

Publication Number Publication Date
EP0293825A1 true EP0293825A1 (de) 1988-12-07
EP0293825B1 EP0293825B1 (de) 1991-09-25

Family

ID=11282223

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880108677 Expired EP0293825B1 (de) 1987-06-03 1988-05-31 Axialgebläserad für die Kühlung des Wärmetauschers des Kühlsystems eines Verbrennungsmotors für Fahrzeuge

Country Status (4)

Country Link
EP (1) EP0293825B1 (de)
DE (1) DE3865098D1 (de)
ES (1) ES2024590B3 (de)
IT (1) IT210736Z2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104005992A (zh) * 2013-02-22 2014-08-27 珠海格力电器股份有限公司 一种轴流风叶

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB388991A (en) * 1932-07-09 1933-03-09 Rene De Mey Improvements in or relating to screw fan blades
US2390879A (en) * 1940-09-21 1945-12-11 B F Sturtevant Co Propeller fan
DE2029021A1 (de) * 1970-06-12 1971-12-16 SWF-Spezialfabrik für Autozubehör Gustav Rau GmbH, 7120 Bietigheim Geräuscharmes Flügelrad für ein Gebläse

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB388991A (en) * 1932-07-09 1933-03-09 Rene De Mey Improvements in or relating to screw fan blades
US2390879A (en) * 1940-09-21 1945-12-11 B F Sturtevant Co Propeller fan
DE2029021A1 (de) * 1970-06-12 1971-12-16 SWF-Spezialfabrik für Autozubehör Gustav Rau GmbH, 7120 Bietigheim Geräuscharmes Flügelrad für ein Gebläse

Also Published As

Publication number Publication date
DE3865098D1 (en) 1991-10-31
ES2024590B3 (es) 1992-03-01
IT8753372V0 (it) 1987-06-03
IT210736Z2 (it) 1989-01-11
EP0293825B1 (de) 1991-09-25

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