DE4014496C1 - Cooling system between radiator and engine of motor vehicle - includes plastic section fixed to radiator and guide collar made of soft elastic elastomer which surrounds fan blades - Google Patents

Cooling system between radiator and engine of motor vehicle - includes plastic section fixed to radiator and guide collar made of soft elastic elastomer which surrounds fan blades

Info

Publication number
DE4014496C1
DE4014496C1 DE19904014496 DE4014496A DE4014496C1 DE 4014496 C1 DE4014496 C1 DE 4014496C1 DE 19904014496 DE19904014496 DE 19904014496 DE 4014496 A DE4014496 A DE 4014496A DE 4014496 C1 DE4014496 C1 DE 4014496C1
Authority
DE
Germany
Prior art keywords
radiator
fan
motor vehicle
engine
cooling system
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 - Fee Related
Application number
DE19904014496
Other languages
German (de)
Inventor
Josef 8072 Manching De Weichselbaumer
Juergen Dipl.-Ing. 8071 Lenting De Franz
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
Priority to DE19904014496 priority Critical patent/DE4014496C1/en
Application granted granted Critical
Publication of DE4014496C1 publication Critical patent/DE4014496C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00Pumping cooling-air or liquid coolants
    • F01P5/02Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
    • F01P5/06Guiding or ducting air to, or from, ducted fans
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/52Casings; Connections of working fluid for axial pumps
    • F04D29/54Fluid-guiding means, e.g. diffusers
    • F04D29/541Specially adapted for elastic fluid pumps
    • F04D29/545Ducts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A cooling system arrangement, which is located between the radiator and the engine of a motor vehicle, includes a plastic section which is fixed to the radiator, and a guide roller, which surrounds the fan blades. The collar is made of a soft elastic, pref. styrole modified polyolefin elastomer material, while the main section is made of polypropylene or polyamide. ADVANTAGE - The arrangement ensures that no damaging contact between the cooling system and the engine occurs.

Description

Die Erfindung betrifft eine zwischen einem Kühler und einer Brennkraftmaschine eines Kraftfahrzeuges vorgese­ hene Lüfterhutze aus tragendem Kunststoff, die ortsfest mit dem Kühler angeordnet ist und mit einem ringförmigen Kragen die Schaufeln eines Kühlluft fördernden Lüfters umschließt.The invention relates to a between a cooler and vorese an internal combustion engine of a motor vehicle hene fan guard made of load-bearing plastic, which is stationary is arranged with the cooler and with an annular Collar the blades of a fan promoting cooling air encloses.

Eine derartige Lüfterhutze zeigt beispielsweise die EP-A 98 397. Sie ist aus tragendem Kunststoff gebildet, am Kühler befestigt und dient als Luftführung vom Kühler zum Lüfter. Die Lüfterhutze ist an ihrer Innenseite mit einem weichelastischen Schaumstoff ausgekleidet, um un­ ter anderem einen möglichst engen Ringspalt zwischen dem Lüfter und dem ringförmigen Kragen zu ermöglichen.Such a fan guard shows, for example, EP-A 98 397. It is made of load-bearing plastic, on Mounted cooler and serves as an air duct from the cooler to the fan. The fan guard is on the inside with a soft elastic foam lined to un ter as narrow as possible an annular gap between the Allow fan and the annular collar.

Durch die US-PS 37 99 128 ist es ferner bekannt, an eine Kühlerhutze aus tragender Struktur einen weichelasti­ schen Kragen anzukleben, wodurch ebenfalls der Ringspalt zwischen dem Lüfter und der so gebildeten zweiteiligen Lüfterhutze verringert werden soll. Im übrigen vermin­ dert ein derartiger weichelastischer Kragen auch An­ schlaggeräusche, die aufgrund der Relativbewegungen zwischen Brennkraftmaschine und separat aufgehängtem Kühler mit Lüfterhutze auftreten können.From US-PS 37 99 128 it is also known to one Radiator hood made of supporting structure a soft elastic glue the collar, which also causes the annular gap between the fan and the two-part thus formed Fan cowl should be reduced. Otherwise min Such a soft elastic collar also appeals percussion noises due to the relative movements between internal combustion engine and separately suspended Coolers with fan cowls can occur.

Aufgabe der Erfindung ist es, mit möglichst einfachen Mitteln einen schädlichen Kontakt zwischen Lüfterhutze und Brennkraftmaschine auszuschließen, ohne jedoch den Wirkungsgrad des Lüfters zu beeinträchtigen.The object of the invention is to be as simple as possible A harmful contact between the fan cover and exclude internal combustion engine, but without the  Affect the efficiency of the fan.

Diese Aufgabe wird erfindungsgemäß mit den kennzeichnen­ den Merkmalen des Patentanspruches 1 gelöst.According to the invention, this object is characterized by the solved the features of claim 1.

Es wird demgemäß eine Lüfterhutze vorgeschlagen, die einstückig aus Kunststoff gefertigt ist, wobei jedoch der Kragen zumindest in seinem unmittelbar der Brenn­ kraftmaschine benachbarten Abschnitt im Zweikomponenten­ verfahren weichelastisch ausgebildet ist. Daraus resul­ tiert, daß weder das Herstellungsverfahren noch die Montage der Lüfterhutze ver­ teuert werden und trotzdem in dem Bereich, in dem ein Kontakt mit An­ bauten oder Aggregaten der Brennkraftmaschine zu befürchten ist, eine elastische Ausbildung erzielt ist. In gewissem Maße dient somit der der Brennkraftmaschine unmittelbar benachbarte elastische Kragen der Lüf­ terhutze als nachgiebiger Anschlag, der sowohl Geräusche als auch Schä­ den aufgrund eines unmittelbaren Kontaktes ausschließt, andererseits aber eine ausreichende axiale Erstreckung der Kragens zur Erzielung eines guten Lüfterwirkungsgrades ermöglicht.Accordingly, a fan guard is proposed that is made in one piece from plastic, however the collar at least in his immediate the focal Engine adjacent section in the two-component procedure is soft-elastic. From this resul animals that  neither the manufacturing process nor the assembly of the fan cowl ver be expensive and still in the area where contact with An Buildings or units of the internal combustion engine is to be feared elastic training is achieved. To a certain extent, the Internal combustion engine immediately adjacent elastic collar of the Lüf terhütze as a resilient stop that both noise and Schä which excludes due to direct contact, on the other hand but sufficient axial extension of the collar to achieve a good fan efficiency.

Bevorzugt kann die Lüfterhutze aus Polypropylen oder Polyamid und der Kragen aus styrolmodifiziertem Polyolefinelastomer hergestellt sein.Preferably, the fan guard made of polypropylene or polyamide and Collar made of styrene-modified polyolefin elastomer.

Ein Ausführungsbeispiel der Erfindung ist im folgenden mit weiteren Einzelheiten näher erläutert. Die schematische Zeichnung zeigt inAn embodiment of the invention is below with others Details explained in more detail. The schematic drawing shows in

Fig. 1 eine Ansicht gemäß Linie I-I der Fig. 2 einer an einem Kühler eines Kraftfahrzeuges angebauten Lüfterhutze; . Fig. 1 is a view according to line II of Figure 2 of an attached to a radiator of a motor vehicle Lüfterhutze;

Fig. 2 einen Horizontalschnitt entlang der Linie II-II der Fig. 1 durch die Kühler-Lüfter-Anordnung und Fig. 2 is a horizontal section along the line II-II of Fig. 1 by the cooler-fan arrangement and

Fig. 3 einen Schnitt gemäß Linie III-III der Fig. 1 in vergrößerter Darstellung durch die Lüfterhutze. Fig. 3 shows a section along line III-III of Fig. 1 in an enlarged view through the fan guard.

Eine nur teilweise dargestellte Brennkraftmaschine 10 ist in einem Mo­ torraum 12 eines Kraftfahrzeuges angeordnet. An der nach vorne weisen­ den Stirnseite 14 der Brennkraftmaschine ist ein mit einer Wasserpumpe 16 kombinierter Lüfter 18 angeordnet. Der Lüfter 18 sowie seitlich der Brennkraftmaschine montierte Aggregate 20, 22 sind von der Kurbelwelle der Brennkraftmaschine über einen Riemen 24 angetrieben. In Fahrtrich­ tung (Pfeil 26) vor dem Lüfter 18 ist ein Luft-Wasser-Wärmetauscher bzw. Kühler 28 an der Karosserie des Kraftfahrzeuges befestigt, der eine Lüfterhutze 30 trägt. An internal combustion engine 10 , only partially shown, is arranged in a motor compartment 12 of a motor vehicle. A fan 18 combined with a water pump 16 is arranged on the front side 14 of the internal combustion engine. The fan 18 and assemblies 20 , 22 mounted on the side of the internal combustion engine are driven by the crankshaft of the internal combustion engine via a belt 24 . In the direction of travel (arrow 26 ) in front of the fan 18 , an air-water heat exchanger or cooler 28 is attached to the body of the motor vehicle, which carries a fan guard 30 .

Die Lüfterhutze 30 weist einen Umfangsflansch 32 auf, der über einen Luftführungsabschnitt 34 in einen ringförmigen Kragen 36 übergeht. Der Kragen 36 umschließt die Schaufeln 38 des Lüfters 18. Der Lüfter 18 fördert somit Kühlluft durch den Wärmetauscher 28 hindurch und bläst sie entlang der Brennkraftmaschine 10 durch den Motorraum 12. Die Lüfterhutze 30 ist scharnierartig in zwei etwa U-förmige Halter 42 am unteren Rand des Kühlers 28 eingesteckt und an dem oberen Umfangs­ flanschabschnitt mittels zweier Schrauben 40 befestigt.The fan guard 30 has a circumferential flange 32 which merges into an annular collar 36 via an air guide section 34 . The collar 36 surrounds the blades 38 of the fan 18 . The fan 18 thus conveys cooling air through the heat exchanger 28 and blows it along the internal combustion engine 10 through the engine compartment 12 . The fan guard 30 is inserted in a hinge-like manner into two approximately U-shaped holders 42 at the lower edge of the cooler 28 and is attached to the upper peripheral flange section by means of two screws 40 .

Die Lüfterhutze 30 ist im Zweikomponentenverfahren aus elastomeren Kunststoff hergestellt. Dabei ist der Bereich (vgl. Fig. 3) bestehend aus dem Umfangsflansch 32 und der Luftführung 34 tragend aus Polypro­ pylen gebildet, während der Kragen 36 (dichtere Schraffur) im Zwei­ komponentenverfahren in einer weichelastischen Struktur aus styrolmodi­ fiziertem Polyolefinelastomer geschaffen ist, aufgrund der mit Weichma­ chern versetzten Struktur elastisch ausgebildet ist.The fan guard 30 is made in a two-component process from elastomeric plastic. The area (see FIG. 3) consisting of the circumferential flange 32 and the air duct 34 is made of polypropylene, while the collar 36 (denser hatching) is created in a two-part process in a flexible structure made of styrene-modified polyolefin elastomer, due to which structure with offset plasticizers is elastic.

Durch diese Konstruktion der Lüfterhutze 30 kann bei einer nach vorne Verlagerung der Brennkraftmaschine 10 bei einem eventuellen Kontakt zwischen Anbauteilen oder Aggregaten (wie Klimakompressor, Lichtma­ schine, stirnseitig vorkragende Wasserstutzen, etc.) der elastische Kragen 36 nachgeben, wodurch Beschädigungen oder Geräusche vermieden sind.This design of the fan cowl 30 allows the elastic collar 36 to give way when the internal combustion engine 10 is moved forward in the event of any contact between attachments or units (such as an air conditioning compressor, light machine, water nozzles protruding from the front, etc.), thereby preventing damage or noise.

Claims (2)

1. Zwischen einem Kühler und einer Brennkraftmaschine eines Kraftfahrzeuges vorgesehene Lüfterhutze aus tragendem Kunststoff, die ortsfest mit dem Kühler angeordnet ist und mit einem ringförmigen Kragen die Schaufeln eines Kühlluft fördernden Lüfters um­ schließt, dadurch gekennzeichnet, daß im Zweikompo­ nentenverfahren der Kragen (36) weichelastisch und einstückig mit der Lüfterhutze (30) gefertigt ist. 1. Between a cooler and an internal combustion engine of a motor vehicle provided fan cover made of load-bearing plastic, which is arranged in a stationary manner with the radiator and closes the blades of a cooling air-promoting fan with an annular collar, characterized in that the two-component method of the collar ( 36 ) is soft and elastic and is made in one piece with the fan guard ( 30 ). 2. Lüfterhutze nach Anspruch 1, dadurch gekennzeichnet, daß der tra­ gende Bereich aus Polypropylen oder Polyamid und der weichelasti­ sche Kragen aus styrolmodifiziertem Polyolefinelastomer gefertigt ist.2. Fan guard according to claim 1, characterized in that the tra range from polypropylene or polyamide and the soft elastic collar made of styrene-modified polyolefin elastomer is.
DE19904014496 1990-05-07 1990-05-07 Cooling system between radiator and engine of motor vehicle - includes plastic section fixed to radiator and guide collar made of soft elastic elastomer which surrounds fan blades Expired - Fee Related DE4014496C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19904014496 DE4014496C1 (en) 1990-05-07 1990-05-07 Cooling system between radiator and engine of motor vehicle - includes plastic section fixed to radiator and guide collar made of soft elastic elastomer which surrounds fan blades

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19904014496 DE4014496C1 (en) 1990-05-07 1990-05-07 Cooling system between radiator and engine of motor vehicle - includes plastic section fixed to radiator and guide collar made of soft elastic elastomer which surrounds fan blades

Publications (1)

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DE4014496C1 true DE4014496C1 (en) 1991-07-18

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4436921A1 (en) * 1994-10-15 1996-04-18 Audi Ag Air guide for water cooled car radiator
EP0703367A3 (en) * 1994-09-21 1997-01-08 Lombardini Fab It Motori Spa Air conveying system for internal combustion engine radiators
DE19950521A1 (en) * 1999-10-20 2001-04-26 Behr Gmbh & Co Fan hood, especially for coolant cooler of IC engine of car consists of plastic and electric motor is located on holder of metal fastened at edge of fan hood
DE102012207552A1 (en) * 2011-05-13 2012-11-15 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Cooling fan module
DE102022124112A1 (en) 2022-09-20 2024-03-21 Bayerische Motoren Werke Aktiengesellschaft COOLING SYSTEM FOR A MOTOR VEHICLE

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3799128A (en) * 1973-03-08 1974-03-26 Gen Motors Corp Engine cooling system radiator and fan shroud
DE2404227B2 (en) * 1973-03-02 1980-05-08 Ford-Werke Ag, 5000 Koeln Radiator fan assembly for automobiles
EP0098397A1 (en) * 1982-07-09 1984-01-18 Iveco Magirus Aktiengesellschaft A fan shroud attached to a water cooler of an internal-combustion engine
DE3339059A1 (en) * 1983-10-28 1984-09-13 Daimler-Benz Ag, 7000 Stuttgart Cooling device for an internal combustion engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2404227B2 (en) * 1973-03-02 1980-05-08 Ford-Werke Ag, 5000 Koeln Radiator fan assembly for automobiles
US3799128A (en) * 1973-03-08 1974-03-26 Gen Motors Corp Engine cooling system radiator and fan shroud
EP0098397A1 (en) * 1982-07-09 1984-01-18 Iveco Magirus Aktiengesellschaft A fan shroud attached to a water cooler of an internal-combustion engine
DE3339059A1 (en) * 1983-10-28 1984-09-13 Daimler-Benz Ag, 7000 Stuttgart Cooling device for an internal combustion engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DE-Z.: ATZ Automobiltechnische Zeitschrift, (1979), H. 10, S. 491, 492, 495 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0703367A3 (en) * 1994-09-21 1997-01-08 Lombardini Fab It Motori Spa Air conveying system for internal combustion engine radiators
DE4436921A1 (en) * 1994-10-15 1996-04-18 Audi Ag Air guide for water cooled car radiator
DE19950521A1 (en) * 1999-10-20 2001-04-26 Behr Gmbh & Co Fan hood, especially for coolant cooler of IC engine of car consists of plastic and electric motor is located on holder of metal fastened at edge of fan hood
DE102012207552A1 (en) * 2011-05-13 2012-11-15 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Cooling fan module
US9714666B2 (en) 2011-05-13 2017-07-25 Brose Fahrzeugteile Gmbh & Co. Kg Cooling fan module
DE102022124112A1 (en) 2022-09-20 2024-03-21 Bayerische Motoren Werke Aktiengesellschaft COOLING SYSTEM FOR A MOTOR VEHICLE
WO2024061497A1 (en) 2022-09-20 2024-03-28 Bayerische Motoren Werke Aktiengesellschaft Cooling system for a motor vehicle

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D1 Grant (no unexamined application published) patent law 81
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8339 Ceased/non-payment of the annual fee