EP0358731B1 - Ventilateur axial - Google Patents

Ventilateur axial Download PDF

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Publication number
EP0358731B1
EP0358731B1 EP19890901524 EP89901524A EP0358731B1 EP 0358731 B1 EP0358731 B1 EP 0358731B1 EP 19890901524 EP19890901524 EP 19890901524 EP 89901524 A EP89901524 A EP 89901524A EP 0358731 B1 EP0358731 B1 EP 0358731B1
Authority
EP
European Patent Office
Prior art keywords
ring
impeller
outer ring
axial fan
flow
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
EP19890901524
Other languages
German (de)
English (en)
Other versions
EP0358731A1 (fr
Inventor
Thomas Carolus
Bruno Kesel
Joachim Makowsky
Wolfgang Scheidel
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0358731A1 publication Critical patent/EP0358731A1/fr
Application granted granted Critical
Publication of EP0358731B1 publication Critical patent/EP0358731B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F01P5/06—Guiding or ducting air to, or from, ducted 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
    • F04D29/40—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
    • F04D29/547—Ducts having a special shape in order to influence fluid flow

Definitions

  • the invention is based on an axial fan according to the preamble of the main claim.
  • Such an axial fan is already known (FR-A 1318533 or E-84439), the fan wheel ring of which is cylindrical over its entire axial extent. So that the ring edge of the fan wheel ring pointing against the flow cannot be flowed directly on and this causes disturbing noises, this ring edge is guided into a low-flow annular space which is formed by a cylindrical extension of the inlet frame between the outer ring and this extension.
  • this measure is complex in terms of production technology and therefore expensive.
  • the axial fan according to the invention with the characterizing features of the main claim has the advantage that the inclination of the funnel-like extension and the inclination of the taper of the outer ring can be coordinated with one another, so that a constant radial gap results over a certain distance.
  • This simple measure represents an effective instrument for reducing the fan operating noise.
  • An axial fan 10 shown in FIG. 1 in a partial section has a fan wheel 12, the blades 14 of which are arranged in a star shape on a fan wheel hub 16. At the free ends 18 of the fan blades 14 - which together form a blade ring - a ring 20 is arranged which surrounds the blade ring.
  • the arrangement of the fan impeller blades 14 on the fan impeller hub 16 is such that air flows in the direction of the arrows 22 when the fan impeller rotates.
  • the side of the fan wheel ring 20 facing the flow is widened like a funnel, which is shown in FIG. 1 by a bell-shaped widening 24 of the ring 22.
  • the inlet frame 26 As seen in the direction of flow of the medium (arrows 22), there is an inlet frame 26 in front of the fan wheel 12, which ensures that the air flows properly into the radial fan 10.
  • the diameter of the annular inlet frame is matched to the fan wheel ring 20 in such a way that it extends to the area of the bell-shaped widening 24 of the fan wheel ring 20. There is thus an axial gap 28 between the mutually facing sides of the fan wheel ring 20, 24 and the inlet frame 26.
  • the outer ring 30 itself can, for example, be firmly connected to the frame 26, as shown in FIGS. 1 and 2.
  • the connection itself can be achieved by welding or by using ultrasound. This is particularly appropriate if both the inlet frame 126 (FIG. 2) and the outer ring 130 are made of a plastic.
  • the outer ring 130 can also be used as a component for mounting a motor driving the axial fan. It is shown there that support arms 140 of an engine mount (not shown in more detail) engage on the outer ring 130.

Landscapes

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

Abstract

Un ventilateur axial sert de préférence à refroidir le moteur à combustion interne d'un véhicule à moteur. Le ventilateur axial comprend un bâti d'admission (26) agencé devant la roue (12) du ventilateur, vu dans le sens d'écoulement du milieu, et une bague (20) agencée aux extrémités libres des aubes de la roue du ventilateur, qui entoure la couronne d'aubes et dont le côté qui fait face à l'écoulement s'élargit en entonnoir, de sorte qu'une fente axiale (28) se forme entre le bâti (26) et la bague (20) du ventilateur. Même sans tolérances relativement étroites de fabrication entre la roue (12) du ventilateur et le bâti d'admission (26), on obtient un ventilateur axial particulièrement silencieux en prévoyant une bague extérieure (30) qui s'étend dans le sens d'écoulement du milieu du bâti d'admission (26) jusqu'à au moins le bord en entonnoir (32) de la bague du ventilateur, de sorte qu'une fente radiale (34) se forme entre celle-ci et la bague extérieure (30).

Claims (5)

1. Ventilateur axial avec un déflecteur d'admission (26) disposé dans le sens d'écoulement (22) du fluide vu en avant de la roue (12) du ventilateur et avec un anneau de roue (20) disposé aux extrémités libres des aubes (14) de la roue du ventilateur, entourant la couronne des aubes ainsi qu'un anneau extérieur (30) qui s'étend pour l'essentiel dans le sens de l'écoulement (22) à partir du déflecteur d'admission (26) dans la zone de l'anneau (20) de la roue du ventilateur, et entoure celui-ci à une distance formant une fente radiale (34), caractérisé en ce que le côté tourné vers l'écoulement (22) de l'anneau (20) de la roue du ventilateur est évasé en forme d'entonnoir, de telle sorte que l'on obtient une fente axiale (28) entre le déflecteur d'admission (26) et l'anneau (20) de la roue du ventilateur et que le diamètre de l'anneau extérieur (30) se rétrécit depuis le déflecteur d'admission (26) jusqu'à son extrémité libre.
2. Ventilateur axial selon la revendication 1, caractérisé en ce que l'anneau extérieur (30 ou 130 ou 230) est relié au déflecteur d'admission (26 ou 126 ou 226).
3. Ventilateur axial selon l'une des revendications 1 ou 2, caractérisé en ce que ni dans le sens de l'écoulement (22) l'anneau extérieur (30) s'étend au moins jusqu'à une zone moyenne de la roue (12) du ventilateur.
4. Ventilateur axial selon l'une des revendications 2 ou 3, caractérisé en ce que sur l'anneau extérieur (130) au moins un bras support (140) agriffe une fixation de moteur.
5. Ventilateur axial selon l'une des revendications 1 à 4, caractérisé en ce que l'anneau extérieur (230) est relié en une seule pièce au déflecteur d'admission (226).
EP19890901524 1988-02-11 1989-01-30 Ventilateur axial Expired - Lifetime EP0358731B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3804217 1988-02-11
DE19883804217 DE3804217A1 (de) 1988-02-11 1988-02-11 Axialluefter

Publications (2)

Publication Number Publication Date
EP0358731A1 EP0358731A1 (fr) 1990-03-21
EP0358731B1 true EP0358731B1 (fr) 1991-09-18

Family

ID=6347176

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890901524 Expired - Lifetime EP0358731B1 (fr) 1988-02-11 1989-01-30 Ventilateur axial

Country Status (4)

Country Link
EP (1) EP0358731B1 (fr)
JP (1) JPH02503217A (fr)
DE (2) DE3804217A1 (fr)
WO (1) WO1989007717A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4927328A (en) * 1989-03-02 1990-05-22 Scoates William D Shroud assembly for axial flow fans
JP3063129B2 (ja) * 1990-09-03 2000-07-12 株式会社デンソー 自動車用冷却ファン装置
US5273400A (en) * 1992-02-18 1993-12-28 Carrier Corporation Axial flow fan and fan orifice
EP0913584B1 (fr) * 1992-05-15 2005-07-20 Siemens VDO Automotive Inc. Ventilateur axial
IT1269656B (it) * 1994-09-21 1997-04-08 Lombardini Fab It Motori Spa Sistema di convogliamento aria per radiatori di motori a c.i.
GB2311562A (en) * 1996-03-28 1997-10-01 Rover Group Fan cowl
DE102006037641B4 (de) * 2006-08-10 2019-04-04 Mahle International Gmbh Kühlvorrichtung eingerichtet für ein Kraftfahrzeug mit einem Kühlmittelkühler und einem Axiallüfter
WO2008074307A1 (fr) * 2006-12-18 2008-06-26 Temic Automotive Electric Motors Gmbh Ventilateur axial pour un radiateur de véhicule

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR84439E (fr) * 1961-09-11 1965-02-05 Ventilateur axial
US4181172A (en) * 1977-07-01 1980-01-01 General Motors Corporation Fan shroud arrangement
JPS6021518Y2 (ja) * 1980-03-07 1985-06-26 アイシン精機株式会社 内燃機関の冷却装置用フアン
JPS5838319A (ja) * 1981-08-31 1983-03-05 Nissan Motor Co Ltd フアンシユラウド
IT1194156B (it) * 1982-03-15 1988-09-14 Sueddeutsche Kuehler Behr Ventilatore assiale,particolarmente per radiatori di raffreddamento di motori termici raffreddati ad acqua
DE8612292U1 (de) * 1986-05-02 1987-01-02 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Axiallüfter

Also Published As

Publication number Publication date
EP0358731A1 (fr) 1990-03-21
JPH02503217A (ja) 1990-10-04
WO1989007717A1 (fr) 1989-08-24
DE3804217A1 (de) 1989-08-24
DE58900303D1 (de) 1991-10-24

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