EP0111845B1 - 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
EP0111845B1
EP0111845B1 EP83112391A EP83112391A EP0111845B1 EP 0111845 B1 EP0111845 B1 EP 0111845B1 EP 83112391 A EP83112391 A EP 83112391A EP 83112391 A EP83112391 A EP 83112391A EP 0111845 B1 EP0111845 B1 EP 0111845B1
Authority
EP
European Patent Office
Prior art keywords
belt
fan
webs
arrangement
mounting element
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.)
Expired
Application number
EP83112391A
Other languages
German (de)
English (en)
Other versions
EP0111845A1 (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 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 AG filed Critical Audi 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, the webs of the receiving part which support the bearings of the axes of rotation of the pulleys are elastically deformable in such a way that the distance between the axes of rotation on the belt pulleys is less than when the belt is removed when the belt is installed.
  • the proposed arrangement ensures that the required belt pretension is generated solely by the receiving part and that a separate belt tensioner is not required.
  • 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 running time of the belt, since the known belts used for this purpose (mostly V-belts) lengthen only very slightly during the entire running time and therefore have an effective influence on the belt tension to take.
  • the individual elements of the receiving part which can be elastically deformed in order to achieve a tension can be produced directly through the areas of the receiving part which are not defined 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, since they are located near the axes of rotation of the pulleys and, moreover, are not fixed to other vehicle parts like the air guide screed forming the receiving part.
  • the elastic deformation of the webs ensures 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 guide scraper and the webs are made in one piece as a pressed sheet metal part. This training ensures a particularly cost-effective production and also provides sufficient elastic properties through the material used for the prestressing. Tests have shown that - apart from the distance of the axis of rotation - no special measures are necessary to ensure the desired belt tension for a long running time.
  • 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 scoop 3 is pressed in one piece from sheet metal and is provided with fastening holes 9 at its edges.
  • the approximately rectangular inlet opening 11 is adapted approximately to the circumference of the cooler, not shown in the drawing.
  • 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 belt pulley 19, the fan 7 is driven indirectly and at a slightly different speed due to the unequal diameter of the belt pulleys 17 and 19, which brings acoustic advantages.
  • bent 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.
  • the belt 21 is placed on a pulley and applied by pressing on the edge of the end face of the other pulley while rotating the fan - which is easily possible by hand is - then the webs 25 deform elastically and cause the pretension of the belt 21st

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)

Claims (3)

1. Dispositif de montage d'un double ventilateur dans un élément de logement (3), chaque ventilateur (5, 7) portant une poulie (17, 19), un ventilateur (5) étant entraîné et son mouvement de rotation étant transmis, par une courroie (21 ) qui coopère avec les poulies (17, 19), à l'autre ventilateur (7), des moyens étant prévus pour agir sur la tension de la courroie, caractérisé en ce qu'à l'état monté de la courroie (21 ), les traverses (25) de l'élément de logement (3) qui portent les paliers des axes de rotation des poulies (17, 19) sont déformables élastiquement pour l'obtention d'une tension, de telle manière que quand la courroie (21) est montée, la distance entre ces axes de rotation au niveau des poulies (17, 19) est plus petite que quand la courroie (21) est démontée.
2. Dispositif selon la revendication 1, dans lequel l'élément de logement, sous forme de conduite d'air, présente une ouverture d'entrée qui correspond à peu près au périmètre d'un radiateur et/ou d'un condenseur qui s'y raccorde et deux ouvertures circulaires de sortie correspondant aux circonférences des ventilateurs associés, caractérisé en ce que pour recevoir les ventilateurs (5, 7) ou le groupe moteur (23), il est prévu des traverses déformables élastiquement (25) qui se raccordent à la conduite d'air (3) et passent en travers des ouvertures de sortie (13, 15).
3. Dispositif selon la revendication 2, caractérisé en ce que la conduite d'air (3) et les traverses (25) sont réalisées d'un seul tenant sous forme de pièce de tôle emboutie à la presse.
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 EP0111845A1 (fr) 1984-06-27
EP0111845B1 true 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)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR880004203A (ko) * 1986-09-05 1988-06-02 클라우드 에이. 포쓰 공기 유동장치
DE4324071A1 (de) * 1993-07-17 1995-01-19 Audi Ag Vorrichtung zur Kühlluftführung
DE19545390C2 (de) * 1995-12-06 2000-07-27 Behr Gmbh & Co Tandemlüfter für Kühler von Kraftfahrzeugen

Family Cites Families (6)

* 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
US2708373A (en) * 1951-09-27 1955-05-17 Gen Motors Corp Power transmitting device
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
FR2373697A1 (fr) * 1976-12-13 1978-07-07 Ferodo Sa Groupe moto-ventilateur a moteur refroidi

Also Published As

Publication number Publication date
DE3247165C1 (de) 1984-06-07
EP0111845A1 (fr) 1984-06-27
DE3364546D1 (en) 1986-08-21

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