EP3198150B1 - Roue de ventilateur - Google Patents

Roue de ventilateur Download PDF

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Publication number
EP3198150B1
EP3198150B1 EP15759482.1A EP15759482A EP3198150B1 EP 3198150 B1 EP3198150 B1 EP 3198150B1 EP 15759482 A EP15759482 A EP 15759482A EP 3198150 B1 EP3198150 B1 EP 3198150B1
Authority
EP
European Patent Office
Prior art keywords
fan
hub
fan blade
fan wheel
rib
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.)
Active
Application number
EP15759482.1A
Other languages
German (de)
English (en)
Other versions
EP3198150A1 (fr
Inventor
Uwe Aschermann
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.)
Mahle International GmbH
Original Assignee
Mahle International 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 Mahle International GmbH filed Critical Mahle International GmbH
Publication of EP3198150A1 publication Critical patent/EP3198150A1/fr
Application granted granted Critical
Publication of EP3198150B1 publication Critical patent/EP3198150B1/fr
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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
    • F04D29/26—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
    • F04D29/329—Details of the hub
    • 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
    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations

Definitions

  • the invention relates to a fan wheel, in particular for conveying cooling air, in particular for an internal combustion engine, comprising a hub on which a plurality of fan blades are arranged and the hub having a rib structure.
  • So-called viscous fans for engine cooling are attached to the crankshaft of the internal combustion engine by means of a fluid friction clutch, a so-called viscous clutch, and supply the internal combustion engine with air for cooling. Vibrations of the internal combustion engine are thus transmitted to the fan via the clutch. The fan thus experiences strong vibrations in all directions, both as axial displacements and in the form of tilting.
  • an impeller for a semi-axial fan which has a hub on which a plurality of fan blades are arranged.
  • the hub of the fan is provided with a hub ramp, which is arranged rising on the outside of the hub.
  • the hub itself is provided with cavities which are separated from one another by radially extending web parts. With this open hub structure, the fan blades go directly into the flat hub.
  • the DE 100 05 857 A1 discloses an impeller, in particular for a fan set, in which the hub comprises a substantially annular wall which is centered on the axis of rotation of the impeller.
  • the blades are connected to a circumferential outer surface which delimits the annular wall of the hub.
  • the circumferential surface comprises two zones that are axially separated by the wings.
  • a fan for cooling an internal combustion engine which has a hub structure designed as an auxiliary structure.
  • This hub structure has both radial and diagonal and crossed webs to increase the stability of the fan.
  • Such a hub structure is very complex to manufacture and is not always sufficient to compensate for vibrations of the internal combustion engine, which cause strong excitation in the tilting and bending direction of the fan.
  • the fan wheel for conveying cooling air in particular for an internal combustion engine, has a flat, ring-shaped hub on which a plurality of fan blades are arranged, the hub having a circumferential rib structure.
  • the rib structure according to the invention consists of rectangular and flat ribs with an edge region which rest with their edge region on the hub and essentially tangentially to the circumferential direction the hub are aligned in their longitudinal extent, touching each other. As a result, the ribs reach a predetermined length so that they run sufficiently close to a center of the fan wheel.
  • the circumferential rib structure is thus polygonal or angular, which means, in the case of crossing ribs, in particular the radially outer outer contour of the rib structure.
  • Each rib which has just been formed advantageously runs from one fan blade to another fan blade. This configuration gives the ribs a predetermined length, by means of which they can be passed close to the center of the fan wheel.
  • the rib just formed extends from the first fan blade to the fan blade arranged directly next to it.
  • it can be straight trained rib run in an alternative from the first fan blade to the fan blade after next.
  • the newly formed rib runs from one fan blade to the third fan blade next to it.
  • the dynamic strength of the fan is increased by crossing the ribs which have just been formed and which emanate from the various fan blades and lead to the corresponding first, second or third fan blade.
  • the ribs which are so flat or straight, run close to the screwing-on points of the coupling without crossing.
  • a development of the invention relates to a viscous fan, in particular for conveying cooling air for an internal combustion engine, comprising a fan wheel which is connected to a shaft of the internal combustion engine via a viscous coupling.
  • the fan wheel of this viscous coupling has at least one feature according to the invention.
  • FIG. 1 A first exemplary embodiment of the fan wheel 1 according to the invention is shown, which has a flat, ring-shaped hub 2, on which a plurality of fan blades 3 are arranged, which extend approximately outward in the radial direction.
  • the fastening points 4 for a viscous coupling are shown, to which the fan wheel 1 can be fastened and via which the fan wheel 1 can be connected to a shaft of an internal combustion engine.
  • Various webs 5 are attached to the flat, annular hub 2, which are flat and rectangular and lead from a fan blade 3 to the fan blade 6 immediately following.
  • the webs 5 touch at their respective ends in the circumferential direction of the hub 2 and do not cross.
  • a web 5 begins approximately at the level of one of the edges of a fan blade 3 and ends approximately at the other edge of the fan blade 3.
  • the Figure 2 shows a fan wheel 7, in which on the flat, annular hub also rectangular and flat webs 8 are arranged between the fan blades 3,9.
  • the individual webs 8 each lead from one edge of a fan blade 3 to the corresponding edge of the fan blade 9 but one, the webs 8 cross each other twice.
  • the web 8, which begins at the front edge of the fan blade 3 leads in the direction of rotation to the front edge of the fan blade 9 after next.
  • the web 8 ending on a fan blade 3, 9 adjoins the further web 8, which starts from the same fan blade 3, 9, an angle being included between the two webs.
  • This design in which a straight web 8 leads from each fan blade 3 to the fan blade 9 next but one, results in a particularly stable structure which prevents the dynamic strength of the fan wheel 7 against axial displacement and / or tilting.
  • the rigidity of the fan wheel 7 is thus increased according to the invention.
  • a highly networked structure of the flat and rectangular webs 11 can be seen on the flat, annular hub 2, with one web 11 extending from one fan blade 3 to the third next fan blade 12.
  • a web starts at a front edge of a fan blade 3 and ends at the front edge of the third next fan blade 12.
  • the webs 11 cross each other four times along the extension of a web 11, the webs 11 crossing one another thereby forming a symmetrical structure.
  • the webs 11 are brought relatively close to the center, that is to the axis of rotation, of the fan wheel 10 and ensure this a sufficient rigidity.
  • the Figure 4 shows a further embodiment of the fan wheel 13, in which the flat and rectangular webs 13 run particularly close to the attachment points 4 of the viscous coupling.
  • the fan wheel 13 comprises eleven fan blades 3, which are stabilized by means of six straight webs 14 which do not intersect with one another.
  • three webs extend along the half the circumference of the hub 2.
  • such a design can be combined with a classic rib principle of the hub 2.
  • Hub ramps can be provided, or optionally can also be dispensed with in the solutions described.
  • the designs according to the invention can in particular also be used for designs according to the DE 10 2010 042 325 A1 be used.

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)

Claims (7)

  1. Roue de ventilateur, en particulier conçue pour le transport d'air de refroidissement pour un moteur à combustion interne, ladite roue de ventilateur comprenant un moyeu plat (2) de forme annulaire sur lequel est disposée une pluralité de pales de ventilateur (3, 6, 9, 12), et le moyeu (2) présente une structure à ailettes, où la structure à ailettes est configurée de façon circulaire et se compose d'ailettes (5, 8, 11, 14) rectangulaires et configurées de manière plane, lesdites ailettes, qui comprennent une zone de bordure, reposent par leur zone de bordure sur le moyeu (2), caractérisée en ce que les ailettes sont orientées, dans leur étendue longitudinale, en étant pratiquement tangentielles à la direction circonférentielle du moyeu (2), où lesdites ailettes sont au contact les unes des autres.
  2. Roue de ventilateur selon la revendication 1, caractérisée en ce que chaque ailette (5, 8, 11, 14) configurée de manière plane s'étend depuis une pale de ventilateur (3, 6, 9, 12) jusqu'à une autre pale de ventilateur (3, 6, 9, 12).
  3. Roue de ventilateur selon la revendication 2, caractérisée en ce que l'ailette (5) configurée de manière plane s'étend depuis une pale de ventilateur (3) jusqu'à la pale de ventilateur (6) disposée juste à côté.
  4. Roue de ventilateur selon la revendication 2, caractérisée en ce que l'ailette (8) configurée de manière plane s'étend depuis une pale de ventilateur (3) jusqu'à la deuxième pale de ventilateur (9) la plus proche.
  5. Roue de ventilateur selon la revendication 2, caractérisée en ce que l'ailette (11) configurée de manière plane s'étend depuis une pale de ventilateur (3) jusqu'à la troisième pale de ventilateur (12) la plus proche.
  6. Roue de ventilateur selon au moins l'une quelconque des revendications précédentes, caractérisée en ce que les ailettes (14) s'étendant de manière rectiligne s'étendent, sans se croiser, à proximité de points de vissage (4) servant à la fixation d'un coupleur du ventilateur.
  7. Viscoventilateur conçu pour le transport d'un air de refroidissement pour un moteur à combustion interne, ledit viscoventilateur comprenant une roue de ventilateur qui est reliée, par un viscocoupleur, à un arbre du moteur à combustion interne, caractérisé en ce que la roue de ventilateur (1, 7, 10, 13) est configurée selon au moins l'une quelconque des revendications précédentes.
EP15759482.1A 2014-09-22 2015-09-09 Roue de ventilateur Active EP3198150B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014219046.0A DE102014219046A1 (de) 2014-09-22 2014-09-22 Lüfterrad
PCT/EP2015/070629 WO2016045971A1 (fr) 2014-09-22 2015-09-09 Roue de ventilateur

Publications (2)

Publication Number Publication Date
EP3198150A1 EP3198150A1 (fr) 2017-08-02
EP3198150B1 true EP3198150B1 (fr) 2020-03-18

Family

ID=54062761

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15759482.1A Active EP3198150B1 (fr) 2014-09-22 2015-09-09 Roue de ventilateur

Country Status (6)

Country Link
US (1) US10393136B2 (fr)
EP (1) EP3198150B1 (fr)
JP (1) JP6654627B2 (fr)
CN (1) CN106715917B (fr)
DE (1) DE102014219046A1 (fr)
WO (1) WO2016045971A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014225688B3 (de) * 2014-12-12 2016-03-31 Ziehl-Abegg Se Anordnung eines Laufrads auf einem rotierenden Teil und Verfahren zur Herstellung der Anordnung
CN109891101B (zh) * 2016-10-27 2020-09-18 三菱电机株式会社 螺旋桨风扇、室外机和制冷循环装置
USD860427S1 (en) 2017-09-18 2019-09-17 Horton, Inc. Ring fan
WO2020028010A1 (fr) 2018-08-02 2020-02-06 Horton, Inc. Ventilateur de refroidissement de véhicule à faible plénitude
DE102019115741A1 (de) * 2019-06-11 2020-12-17 Ebm-Papst Landshut Gmbh Versteiftes Gebläsegehäuseteil zur Anordnung an einem Gasgebläse

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US3572969A (en) * 1969-05-13 1971-03-30 Gen Motors Corp Turbomachine rotor
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Also Published As

Publication number Publication date
US10393136B2 (en) 2019-08-27
JP6654627B2 (ja) 2020-02-26
CN106715917B (zh) 2019-06-04
JP2017530289A (ja) 2017-10-12
CN106715917A (zh) 2017-05-24
WO2016045971A1 (fr) 2016-03-31
DE102014219046A1 (de) 2016-03-24
US20170175762A1 (en) 2017-06-22
EP3198150A1 (fr) 2017-08-02

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