EP0111845A1 - Arrangement d'un ventilateur double dans une buse le supportant - Google Patents

Arrangement d'un ventilateur double dans une buse le supportant Download PDF

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Publication number
EP0111845A1
EP0111845A1 EP83112391A EP83112391A EP0111845A1 EP 0111845 A1 EP0111845 A1 EP 0111845A1 EP 83112391 A EP83112391 A EP 83112391A EP 83112391 A EP83112391 A EP 83112391A EP 0111845 A1 EP0111845 A1 EP 0111845A1
Authority
EP
European Patent Office
Prior art keywords
belt
fan
receiving part
webs
air guide
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
EP83112391A
Other languages
German (de)
English (en)
Other versions
EP0111845B1 (fr
Inventor
Peter Engel
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.)
Audi AG
Original Assignee
Audi NSU Auto Union AG
Audi AG
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 Audi NSU Auto Union AG, Audi AG filed Critical Audi NSU Auto Union AG
Publication of EP0111845A1 publication Critical patent/EP0111845A1/fr
Application granted granted Critical
Publication of EP0111845B1 publication Critical patent/EP0111845B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers

Definitions

  • the invention relates to an arrangement of a double fan in a receiving part according to the preamble of claim 1.
  • a fan is driven by the internal combustion engine; the second fan is driven by a belt which engages with pulleys attached to the two fans.
  • a belt tensioner is provided to generate the desired belt tension.
  • the invention has for its object to effect belt tension in a generic arrangement of a double fan with simple means.
  • the object is achieved in that, when the belt is mounted, individual elements of the receiving part receiving the double fan_ are elastically deformed in order to achieve a tension, such that the distance between the axes of rotation when the belt is mounted the pulleys are smaller than when the belt is removed.
  • the proposed arrangement ensures that the required belt pretension is generated solely by the receiving part and a separate belt tensioner is unnecessary.
  • the adjustment of the belt tension can also be omitted.
  • the pretension of the belt is given by design and is essentially only influenced by the tolerance of the belt. If a corresponding length tolerance of the belt is specified, sufficient belt tension is ensured over the entire life of the belt, since the known belts used for this purpose (mostly V-belts) only lengthen very slightly during the entire life and therefore have no effective influence on the belt Take off the belt tension.
  • the individual elements of the receiving part which can be elastically deformed in order to achieve a tension can be produced directly by the areas of the receiving part which are not fixed on other body parts, if the latter consists of a material with corresponding elastic properties (e.g. sheet metal or plastic). However, it is also possible to specifically design certain sections of the receiving part for this purpose or to create an area suitable for elastic deformation by interposing a suitable component made of another material.
  • the claim 2 characterizes a particularly advantageous embodiment of the invention for creating elastically deformable elements of the receiving part.
  • the proposed webs are particularly suitable for this because they are located near the axes of rotation of the pulleys and, moreover, are not fixed to other vehicle parts like the air guiding member forming the receiving part. Due to the elastic Deformation of the webs is achieved that the axes of rotation of the pulleys move towards each other at an acute angle. Since this is only necessary to a small extent to achieve the desired belt pretension, this has hardly any influence on the drive; especially not if a V-belt is used.
  • the air control scoop can be composed of several parts and made of different materials (e.g. plastic). It is particularly advantageous if the air duct and the webs are made in one piece as a pressed sheet metal part. This design ensures particularly cost-effective production and also provides sufficient elastic properties for the prestressing due to the material used. Tests have shown that - apart from the distance of the axis of rotation - no special M took ASA are necessary to ensure the required belt tension for a long term.
  • An air guide 3 shown in Fig. 1 for attachment to the radiator of a motor vehicle is equipped with two fans) 5 and 7.
  • the air guide 3 is pressed in one piece from sheet metal and provided with fastening holes 9 at its edges.
  • the approximately rectangular inlet opening 11 is approximately the circumference of the in the drawing is not shown adjusted cooler adjusted.
  • Another feature of the air guide scoop 3 are two circular outlet openings 13 and 15, the diameter of which is slightly larger than the diameter of the associated fans 5 and 7.
  • Each fan 5 and 7 carries a pulley 17 and 19, which are connected to each other via a belt 21.
  • the fan 5 is driven directly by an electric motor 23, on the outlet shaft of which the fan 5 and the pulley 17 are fastened. via the belt 21 and the pulley 19, the fan 7 is driven indirectly, and due to unequal diameters of the pulleys 17 and 19 at a slightly different speed ', which brings acoustic advantages.
  • cranked webs 25 are integrally formed on the air guide scoop 3, which protrude into the outlet openings 13 and 15 and merge into an annular flange 27 and 29.
  • the electric motor 23 is fixed on the ring flange 27 by means of tabs 31 attached to it by screws 33.
  • the ring flange 29 receives a bearing part 35 for the fan 7.
  • the structural distance between the axes of rotation of the fans 5 and 7 is greater when the belt 21 is not mounted than when the belt 21 is applied. If the belt 21 is placed on a pulley and applied by pressing on the edge of the end face of the other pulley while simultaneously rotating the fan - which is easily possible by hand - then the webs 25 deform elastically and cause the belt 21 to be pretensioned.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
EP83112391A 1982-12-21 1983-12-09 Arrangement d'un ventilateur double dans une buse le supportant Expired EP0111845B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3247165 1982-12-21
DE3247165A DE3247165C1 (de) 1982-12-21 1982-12-21 Anordnung eines Doppelluefters in einem Aufnahmeteil

Publications (2)

Publication Number Publication Date
EP0111845A1 true EP0111845A1 (fr) 1984-06-27
EP0111845B1 EP0111845B1 (fr) 1986-07-16

Family

ID=6181214

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83112391A Expired EP0111845B1 (fr) 1982-12-21 1983-12-09 Arrangement d'un ventilateur double dans une buse le supportant

Country Status (2)

Country Link
EP (1) EP0111845B1 (fr)
DE (2) DE3247165C1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0259182A3 (fr) * 1986-09-05 1989-03-22 Brookside Group Inc Dispositif de circulation d'air
DE4324071A1 (de) * 1993-07-17 1995-01-19 Audi Ag Vorrichtung zur Kühlluftführung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19545390C2 (de) * 1995-12-06 2000-07-27 Behr Gmbh & Co Tandemlüfter für Kühler von Kraftfahrzeugen

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2382712A (en) * 1942-12-31 1945-08-14 Edmund E Hans Heater arrangement
GB861722A (en) * 1958-06-20 1961-02-22 Normalair Ltd Improvements in or relating to air conditioning systems for vehicles
US3164027A (en) * 1961-02-16 1965-01-05 Garland Sales Company Belt tightener
US3351129A (en) * 1965-09-17 1967-11-07 Milton E Spatt Air conditioning systems for vehicles such as buses
US4210833A (en) * 1976-12-13 1980-07-01 Societe Anonyme Francaise Du Ferodo Motor-fan unit with cooled motor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2708373A (en) * 1951-09-27 1955-05-17 Gen Motors Corp Power transmitting device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2382712A (en) * 1942-12-31 1945-08-14 Edmund E Hans Heater arrangement
GB861722A (en) * 1958-06-20 1961-02-22 Normalair Ltd Improvements in or relating to air conditioning systems for vehicles
US3164027A (en) * 1961-02-16 1965-01-05 Garland Sales Company Belt tightener
US3351129A (en) * 1965-09-17 1967-11-07 Milton E Spatt Air conditioning systems for vehicles such as buses
US4210833A (en) * 1976-12-13 1980-07-01 Societe Anonyme Francaise Du Ferodo Motor-fan unit with cooled motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0259182A3 (fr) * 1986-09-05 1989-03-22 Brookside Group Inc Dispositif de circulation d'air
DE4324071A1 (de) * 1993-07-17 1995-01-19 Audi Ag Vorrichtung zur Kühlluftführung

Also Published As

Publication number Publication date
DE3364546D1 (en) 1986-08-21
EP0111845B1 (fr) 1986-07-16
DE3247165C1 (de) 1984-06-07

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