EP3198150B1 - Lüfterrad - Google Patents

Lüfterrad 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)
French (fr)
Other versions
EP3198150A1 (de
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/de
Application granted granted Critical
Publication of EP3198150B1 publication Critical patent/EP3198150B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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)
EP15759482.1A 2014-09-22 2015-09-09 Lüfterrad Active EP3198150B1 (de)

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 (de) 2014-09-22 2015-09-09 Lüfterrad

Publications (2)

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

Family

ID=54062761

Family Applications (1)

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

Country Status (6)

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

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
US11635089B2 (en) * 2016-10-27 2023-04-25 Mitsubishi Electric Corporation Propeller fan, outdoor unit, and refrigeration cycle apparatus
USD860427S1 (en) 2017-09-18 2019-09-17 Horton, Inc. Ring fan
US11767761B2 (en) 2018-08-02 2023-09-26 Horton, Inc. Low solidity vehicle cooling fan
DE102019115741A1 (de) * 2019-06-11 2020-12-17 Ebm-Papst Landshut Gmbh Versteiftes Gebläsegehäuseteil zur Anordnung an einem Gasgebläse

Family Cites Families (21)

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US2857094A (en) * 1955-07-19 1958-10-21 John R Erwin Integral plastic rotors
US3403844A (en) * 1967-10-02 1968-10-01 Gen Electric Bladed member and method for making
US3572969A (en) * 1969-05-13 1971-03-30 Gen Motors Corp Turbomachine rotor
US4187055A (en) * 1978-04-03 1980-02-05 Vernco Corporation Flexible fan
US4863352A (en) * 1984-11-02 1989-09-05 General Electric Company Blade carrying means
US4629644A (en) * 1985-09-30 1986-12-16 United Technologies Corporation Filament wound structure having filament wound reinforcing rings for use as a torque drive
FR2605586B1 (fr) * 1986-10-22 1990-11-30 Snecma Anneau porte-pales pour aubage d'helice de grande dimension
DE4117342C1 (ja) 1991-05-27 1992-09-10 Behr Gmbh & Co, 7000 Stuttgart, De
US5331811A (en) * 1993-02-11 1994-07-26 Giberson Melbourne F Fluid drive
FR2789448B1 (fr) 1999-02-10 2001-05-04 Ecia Equip Composants Ind Auto Helice, notamment pour groupe moto-ventilateur
DE29903619U1 (de) * 1999-03-01 1999-05-20 Alu Kunststoff-Technik für Automobile GmbH, 90427 Nürnberg Lüfter für einen Motor, insbesondere einen LKW-Motor
US6375427B1 (en) * 2000-04-14 2002-04-23 Borgwarner Inc. Engine cooling fan having supporting vanes
JP4969493B2 (ja) 2008-02-28 2012-07-04 三菱重工業株式会社 樹脂製ファン
CA2777140C (en) * 2009-10-13 2018-05-15 Novenco A/S An axial fan, fan rotor and method of manufacturing a rotor for an axial fan
IT1396350B1 (it) * 2009-10-26 2012-11-19 Spal Automotive Srl Ventilatore assiale
CN201794829U (zh) * 2010-07-29 2011-04-13 杨明军 带有加强筋的风扇组件
DE102010042325A1 (de) * 2010-10-12 2012-04-12 Behr Gmbh & Co. Kg Lüfter mit Lüfterschaufeln
CN103282672A (zh) * 2011-01-05 2013-09-04 博格华纳公司 用于流体泵组件的叶轮设计及制造方法
CN202326418U (zh) * 2011-12-09 2012-07-11 温州车舟汽车部件有限公司 轮毂开口高效导流内燃机冷却风扇
CN202789721U (zh) * 2012-05-31 2013-03-13 江苏英岗模塑科技有限公司 一种内燃机塑料冷却风扇
CN202833302U (zh) * 2012-10-24 2013-03-27 温州车舟汽车部件有限公司 环形冷却风扇

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Also Published As

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

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