EP0543694B1 - Lüfterzarge und Anwendung in einem Kraftfahrzeugmotorkühler - Google Patents

Lüfterzarge und Anwendung in einem Kraftfahrzeugmotorkühler Download PDF

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Publication number
EP0543694B1
EP0543694B1 EP92402962A EP92402962A EP0543694B1 EP 0543694 B1 EP0543694 B1 EP 0543694B1 EP 92402962 A EP92402962 A EP 92402962A EP 92402962 A EP92402962 A EP 92402962A EP 0543694 B1 EP0543694 B1 EP 0543694B1
Authority
EP
European Patent Office
Prior art keywords
axis
shell
wall
upstream
fairing
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 - Lifetime
Application number
EP92402962A
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English (en)
French (fr)
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EP0543694A1 (de
Inventor
Jean-Claude Vera
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.)
ECIA Equipements et Composants pour lIndustrie Automobile SA
Original Assignee
ECIA Equipements et Composants pour lIndustrie Automobile SA
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Filing date
Publication date
Application filed by ECIA Equipements et Composants pour lIndustrie Automobile SA filed Critical ECIA Equipements et Composants pour lIndustrie Automobile SA
Publication of EP0543694A1 publication Critical patent/EP0543694A1/de
Application granted granted Critical
Publication of EP0543694B1 publication Critical patent/EP0543694B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/545—Ducts
    • 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
    • F04D19/002—Axial flow fans
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y10S415/914—Device to control boundary layer

Definitions

  • the present invention relates to fans and, more particularly, an improved fairing for the latter and its application to fan groups, for example of cars.
  • a solution of the first type is, for example, illustrated by the document FR 2 603 953.
  • This document proposes to give the blades of the propeller a profile such that the air streams close to the hub which carries the feet of the blades describe centripetal trajectories, while the air streams near the blade heads follow centrifugal trajectories.
  • a solution of the other type is, for example illustrated by document EP 0 026 997. This document proposes using a shroud for an extractor fan, placed downstream of the radiator in the direction of the flow of air.
  • This fairing includes a fixed or diffusing part with a cylindrical skirt and a mobile part with a peripheral profiled annular ferrule which is subject to the heads of the propeller blades and which is mounted coaxially with this skirt so as to be able to rotate there.
  • the air streams closest to the blade heads are ejected to form a fluid barrier which prevents the circulation of such disruptive counter-currents. It will however be observed that this solution which, in principle, prevents untimely reflux of the stirred fluid, requires a relatively large clearance between the skirt and the shell.
  • the object of the invention is to remedy this type of difficulty, especially in the case where a fan is placed upstream, in the direction of flow of the fluid, of a radiator or of an exchanger.
  • the subject of the invention is an improved fan fairing of the type described in document EP 0 026 997, all the elements of which it discloses and which are necessary for the invention are set out in the preamble to claim 1 .
  • the invention also relates to the application of such a fairing to fan units, for example from cars.
  • a fan shroud comprises a fixed part 10, usually called a diffuser, and a mobile part 20 usually a ferrule propeller, capable of turning along an axis 200.
  • the air flows are shown diagrammatically by an arrow.
  • the fixed part 10 or diffuser comprises a base 11 intended for its attachment to an exchanger E, a radiator or the like as illustrated.
  • This diffuser also includes a funnel nozzle 12 and a connection zone 13 for joining this funnel nozzle to a skirt 14.
  • the skirt 14 is preferably cylindrical and coaxial with the axis 200 while the base 11 is generally intended to be fixed on an exchanger E or rectangular radiator so that the funnel nozzle 12 has an approximately cylindro-pyramidal configuration, the cylindrical part being located upstream and the pyramidal part downstream identified with respect to the direction of flow.
  • This diffuser also comprises radial arms 15, for example three, intended to support an electric motor M for driving a shaft on which the hub of the propeller or mobile part 20 is mounted.
  • the movable part or propeller 20 comprises a profiled annular ferrule 21, blades 22 and a hub 23. As can be seen, this ferrule is delimited by an interior wall 2101, an exterior wall 2102 and a rear edge 2103.
  • This ferrule 21 comprises a flange 211, a flange 212 and an extension 213.
  • Each blade 22 comprises a head 221 towards the outside and a foot 222 towards the axis, a leading edge 223 and a trailing edge 224.
  • the heads 221 of the blades are intended for be subject to the ferrule 21 while their feet 222 are intended to be subject to the hub 23.
  • the zone 13 for connecting the diffuser 10 is delimited in particular by an internal surface 131 at the end 1310 upstream.
  • the distances which separate the axis 200 from the interior wall 2101 and from the exterior wall 2102 of the shell 21, measured at the rear edge 2103, are designated respectively by R 1 and R 2 .
  • the ferrule 21 is mounted in the skirt 14 so that its rear edge 2103 is practically situated in a plane P or in the immediate vicinity, which is perpendicular to the axis 200 and which passes practically through the upstream end 1310 of the internal surface 131 of the connection zone.
  • a bead or step 132 which is projecting internally and which is placed close from the upstream end 1310 of this connection zone.
  • this bead 132 has a profiled face 1321 of junction with, preferably a flat face 1322 configured in a radial crown.
  • This face 1321 is as it is located, in its zone which is the most close, at a distance R from the axis 200, practically equal to or little different from the distance R 1 separating this axis from the interior wall 2101 of the shell 21, measured at the rear edge 2103.
  • this face plane in radial crown 1322 is situated in the plane P or in the immediate vicinity, which is perpendicular to the axis 200 and which passes through the upstream end 1310 of the internal surface 131 of the connection zone 13.
  • the measures adopted for the bead or step 132 ensure physical or aerodynamic continuity of the inner wall 2101 of the shell 21 with the inner surface 131 of the connection zone 13, practically without any solution of continuity.
  • the transition region is as small as possible, we make sure that the axial gap a between the planar face in radial crown 1322 of the bead 132 and the rear edge 2103 of the shell 21, is practically equal to the gap radial r which separates the internal surface 141 of the skirt 14 from the external wall 2102 of the ferrule 21 which faces it.
  • the turbulent centrifugal flow at the blade heads can flare in the diffuser by "sticking" to its walls, for example by Coanda effect.
  • the fixed part is for example made, for all or part, of sheet metal or synthetic resin (s). It is the same for the mobile part.
  • the cooling performance is increased and the efficiency of the fan increased.
  • the invention finds in particular an application for radiators of automobile heat engines, whether they are with single or double fan units and especially when such fan units are placed upstream of the radiator or exchanger.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (6)

  1. Verbesserte Verkleidung für Lüfter, die unter anderem versehen ist mit einem festen Teil, der zu einem Diffusor ausgebildet ist, der einen Befestigungsansatz (11), eine trichterförmige Düse (12), eine Verbindungszone (13) und eine zylindrische Schürze (14) aufweist, und einem beweglichen Teil (20), der so beschaffen ist, daß er sich um eine Achse (200) drehen kann, und der einen profilierten, ringförmigen Umfangsmantel (21) aufweist, der dazu bestimmt ist, mit den Spitzen (221) von Blättern (22) einer Schraube verbunden zu werden, und der in dieser Schürze (14) koaxial in der Weise angebracht ist, daß er sich in ihr drehen kann, wobei dieser Mantel (21) in bezug auf die von der Achse (200) ausgehende Richtung durch eine Innenwand (2101), eine Außenwand (2102) und eine hintere Stirnfläche (2103) begrenzt ist, wobei die Verkleidung dadurch gekennzeichnet ist, daß diese Verbindungszone (13) insbesondere durch eine innere Oberfläche (131) mit einem vorderen Ende (1310) begrenzt ist und daß diese hintere Stirnfläche (2103) des Mantels (21) sich in einer Ebene (P) befindet, die zur Achse (200) senkrecht ist und durch das vordere Ende (1310) der inneren Oberfläche (131) der Verbindungszone (13) verläuft.
  2. Verkleidung nach Anspruch 1, dadurch gekennzeichnet, daß die innere Oberfläche (131) der Verbindungszone (13) einen Wulst (132) trägt, der nach innen vorsteht und in der Nähe ihres vorderen Endes (1310) angeordnet ist, und daß sich die Fläche (1321) dieses Wulstes (132) in der am nächsten an der Achse (200) befindlichen Zone in einem Abstand (R) von dieser letzteren (200) befindet, welcher im wesentlichen gleich dem Abstand (R1) ist, der diese Achse (200) von der Innenwand (2101) des Mantels (21), gemessen an der hinteren Stirnfläche (2103), trennt.
  3. Verkleidung nach Anspruch 2, dadurch gekennzeichnet, daß der Wulst (132) nach vorn durch eine ebene Fläche (1322) in Form eines radialen Kranzes begrenzt ist und daß diese Fläche (1322) sich im wesentlichen in der Ebene (P) befindet, die zur Achse (200) senkrecht ist und durch das vordere Ende (1310) der inneren Oberfläche (131) der Verbindungszone (13) verläuft.
  4. Verkleidung nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß der Abstand (R), der die am nächsten an der Achse (200) befindliche Zone der Fläche (1321) des Wulstes (132) von dieser Achse (200) trennt, im wesentlichen die Beziehung R = 1/3 (2R1 + R2) erfüllt, wobei R1 und R2 die Abstände sind, um die die Achse (200) von der Innenwand (2101) bzw. von der Außenwand (2102) des Mantels (21), jeweils gemessen an der hinteren Stirnfläche (2103), beabstandet ist.
  5. Verkleidung nach irgendeinem der Ansprüche 3 und 4, dadurch gekennzeichnet, daß der radiale Abstand (r) zwischen der inneren Oberfläche (141) der Schürze (14) und der Außenwand (2102) des Mantels (21), die ihr zugewandt ist, im wesentlichen gleich dem axialen Abstand (a) zwischen der ebenen Fläche in Form eines radialen Kranzes (1322) des Wulstes (132) und der hinteren Stirnfläche (2103) des Mantels ist.
  6. Anwendung einer Verkleidung gemäß irgendeinem der Ansprüche 1 bis 5 auf einen Kraftfahrzeuglüftersatz.
EP92402962A 1991-11-07 1992-11-02 Lüfterzarge und Anwendung in einem Kraftfahrzeugmotorkühler Expired - Lifetime EP0543694B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR919113755A FR2683599B1 (fr) 1991-11-07 1991-11-07 Carenage perfectionne pour ventilateur et son application a un groupe motoventilateur d'automobile.
FR9113755 1991-11-07

Publications (2)

Publication Number Publication Date
EP0543694A1 EP0543694A1 (de) 1993-05-26
EP0543694B1 true EP0543694B1 (de) 1996-09-04

Family

ID=9418726

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92402962A Expired - Lifetime EP0543694B1 (de) 1991-11-07 1992-11-02 Lüfterzarge und Anwendung in einem Kraftfahrzeugmotorkühler

Country Status (5)

Country Link
US (1) US5342173A (de)
EP (1) EP0543694B1 (de)
DE (1) DE69213399T2 (de)
ES (1) ES2092657T3 (de)
FR (1) FR2683599B1 (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0645543A1 (de) * 1993-08-31 1995-03-29 Caterpillar Inc. Geräuscharme Kühlanlage
US5454695A (en) * 1994-07-05 1995-10-03 Ford Motor Company High output engine cooling fan
IT1269656B (it) * 1994-09-21 1997-04-08 Lombardini Fab It Motori Spa Sistema di convogliamento aria per radiatori di motori a c.i.
FR2728028B1 (fr) * 1994-12-07 1997-03-14 Sardou Max Dispositif pour transformer l'energie mecanique d'un moteur en une mise sous pression d'un gaz
DE19645507B4 (de) * 1995-11-18 2006-03-02 Volkswagen Ag Befestigungsanordnung für eine Luftführungshaube an einem Ladeluftkühler
US5740766A (en) * 1997-03-25 1998-04-21 Behr America, Inc. Automotive fan and shroud assembly
US5791876A (en) * 1997-03-25 1998-08-11 Behr America, Inc. Floating drive assembly for an automotive cooling fan
JP3601807B2 (ja) 1997-10-08 2004-12-15 本田技研工業株式会社 自動２輪車用ラジエタ冷却装置
US5901786A (en) * 1998-09-21 1999-05-11 Ford Motor Company Axial fan sandwich cooling module incorporating airflow by-pass features
US6203287B1 (en) 1999-08-31 2001-03-20 Ingersoll-Rand Company Fluid compressor with airflow manifold that includes means for discharging particulated matter from the compressor and method
US6309178B1 (en) * 1999-09-22 2001-10-30 Young S. Kim Downstream guiding device for fan-radiator cooling system
DE10233626B4 (de) * 2001-07-25 2019-03-21 Denso Corporation Frontend-Aufbau für ein Fahrzeug
US6676371B1 (en) * 2002-08-22 2004-01-13 Custom Molders, Inc. Double barrel vehicle cooling fan shroud
JP4627409B2 (ja) * 2004-04-20 2011-02-09 日本電産サーボ株式会社 軸流ファン
DK177428B1 (da) * 2009-01-14 2013-05-21 Novenco As Aksialblæser
DE102010051760A1 (de) * 2010-11-17 2012-05-24 Evg Lufttechnik Gmbh Axiallüfter mit vorgeschalteter Anschlusshaube und einem nachgeschalteten Leitapparat
DE202010016820U1 (de) * 2010-12-21 2012-03-26 Ebm-Papst Mulfingen Gmbh & Co. Kg Diffusor für einen Ventilator sowie Ventilatoranordnung mit einem derartigen Diffusor
DE102012003336A1 (de) * 2012-02-17 2013-08-22 Ziehl-Abegg Ag Diffusor, Ventilator mit einem solchen Diffusor sowie Gerät mit solchen Ventilatoren
FR2998223B1 (fr) * 2012-11-21 2015-01-16 Peugeot Citroen Automobiles Sa Groupe moto-ventilateur equipant un vehicule automobile
TW201518607A (zh) * 2013-11-14 2015-05-16 Hon Hai Prec Ind Co Ltd 風扇
JP2015155681A (ja) * 2014-02-21 2015-08-27 株式会社デンソー 送風装置
JP7116459B2 (ja) * 2017-10-05 2022-08-10 国立研究開発法人宇宙航空研究開発機構 ダクテッドファン、マルチコプタ、垂直離着陸機、ｃｐｕ冷却用ファン及びラジエータ冷却用ファン
DE102018132002A1 (de) * 2018-12-12 2020-06-18 Ebm-Papst Mulfingen Gmbh & Co. Kg Ventilationseinheit

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JPS59176499A (ja) * 1983-03-25 1984-10-05 Hino Motors Ltd 内燃機関用冷却フアン装置
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FR2572130B1 (fr) * 1984-10-22 1987-02-13 Peugeot Aciers Et Outillage Dispositif de ventilation perfectionne pour circuit de refroidissement du fluide caloporteur d'un moteur thermique
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FR2603953B1 (fr) * 1986-09-12 1991-02-22 Peugeot Aciers Et Outillage Pale profilee d'helice et son application aux motoventilateurs
KR0140195B1 (ko) * 1990-03-07 1998-07-01 다나까 다로오 압입식 축류 송풍기

Also Published As

Publication number Publication date
DE69213399T2 (de) 1997-02-06
FR2683599B1 (fr) 1994-03-04
FR2683599A1 (fr) 1993-05-14
ES2092657T3 (es) 1996-12-01
US5342173A (en) 1994-08-30
EP0543694A1 (de) 1993-05-26
DE69213399D1 (de) 1996-10-10

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