EP3768977A1 - Roue de ventilateur devant être entraînée dans un sens de rotation - Google Patents

Roue de ventilateur devant être entraînée dans un sens de rotation

Info

Publication number
EP3768977A1
EP3768977A1 EP19717110.1A EP19717110A EP3768977A1 EP 3768977 A1 EP3768977 A1 EP 3768977A1 EP 19717110 A EP19717110 A EP 19717110A EP 3768977 A1 EP3768977 A1 EP 3768977A1
Authority
EP
European Patent Office
Prior art keywords
hub
drive unit
drive
rotation
fan
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.)
Granted
Application number
EP19717110.1A
Other languages
German (de)
English (en)
Other versions
EP3768977B1 (fr
Inventor
Karl Hägele
Markus Lechler
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.)
IE Assets GmbH and Co KG
Original Assignee
IE Assets GmbH and Co KG
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 IE Assets GmbH and Co KG filed Critical IE Assets GmbH and Co KG
Publication of EP3768977A1 publication Critical patent/EP3768977A1/fr
Application granted granted Critical
Publication of EP3768977B1 publication Critical patent/EP3768977B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F04D29/34—Blade mountings
    • F04D29/36—Blade mountings adjustable
    • F04D29/362—Blade mountings adjustable during rotation
    • 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
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05B2260/74—Adjusting of angle of incidence or attack of rotating blades by turning around an axis perpendicular the rotor centre line

Definitions

  • the invention relates to a fan which, despite its limitation to only one driving direction and the resulting limited demands on the associated drive unit the requirements for opposite directions of flow and for variability in the delivery volume, in particular
  • each selected, freely adjustable axial load of the fan wheel is fair.
  • an actuator is provided in the invention, in the axial connection between the drive unit and the hub head lying, wherein -
  • Nabenkopf rotatably and together with the hub head according to the axial clearance between the hub and drive unit axially
  • This switching star lies in the axial overlap area to two annular discs, which are connected to the drive unit, in particular a drive part of the drive unit, rotatably and positionally fixed and against which the switching star in the context of
  • annular discs are not only firmly connected to each other, but also provided with respect to their inner circumference with the same meander-shaped structures, to which on the part of the switching star in opposite directions
  • Meander-shaped structure is provided circumferentially.
  • Rotation angle range is sufficiently dimensioned to allow a largely unimpeded axial transition of the switching star from a given to one of the annular disks same level position on the plane of the other annular disc.
  • Switching forces are introduced according to a preferred solution on the air admission of the fan wheel, and thus only indirectly dependent on the controllable drive power.
  • the hub may also be assigned a separate adjusting device.
  • Adjusting device may be formed in a simple manner magnetically working, so that optionally on the Adjustment device alone and / or in combination with the aerodynamic impingement the conversion of the fan blades on the turn-over level can be effected.
  • the number of switching windows can be selected matched to the respective shape of the meander-shaped contouring, with respect to a symmetrical to the axis of rotation support at least two with respect to the axis of rotation each other
  • opposite switching window conditionally and with regard to a smooth axial displacement of the switch S ternes against the annular discs may also have adapted guide flanks.
  • Fig. 2 is a schematic cross-sectional view of the in Fig.
  • FIG. 1 fan blade illustrated as an exploded view, viewed radially along the axis of a blade
  • Drive unit 2 a to the rotation axis 3 coaxial drive part 4.
  • a drive unit 2 forming a respective motor possibly also electromotive drive integrated, or also be provided directly or indirectly verkuppelt.
  • the drive part 4 is preferably provided with two in the direction of the rotation axis 3 of the impeller 1 coaxial opposing annular drive tracks 6 and 7, which form the opposite side walls of a radially outwardly open annular channel 24, in which the pin-like, in the hub 5 stored foot parts 12 of the
  • Drive elements such as pinion 10 formed at Power transmission to one of the drive tracks 6, 7 against the other drive track 7.6 each in the circumferential direction
  • the drive part 4 is in
  • directed air flow is generated to - when blowing against the radiator 11 - to free the radiator 11 of scheduled impurities.
  • Transhipment plane 14 is a reversal of the conveying direction.
  • Transhipment level 14 lies in the transition between the suction mode and the blow mode as suction position 25 and blow position 26 occupied wing positions and corresponds to a relative to the conveying directions in the suction and blowing operation intermediate, directionally neutral transitional position of the
  • Fan blade 8 The change over the turn-over plane 14 is not connected to a change in the air supply to the fan blades between their wings to the blade plane opposite wing surfaces 33 and 34 as in the
  • Displacement causes the support position of the pinion 10 to the drive tracks 6, 7 changes, associated with a change in the drive direction of rotation of the pinion 10, and thus also for the respective fan blades. 8
  • the embodiment provides for the conversion of the fan blades 8 in their conveying direction under the influence of aerodynamic and / or inertial restoring forces, such as initiated by brief interruption z.
  • corresponding control pulses for example by means of mechanical or electrical adjusting devices are applied to the hub 5, whereby a respectively desired, so arbitrarily initiated conversion as well as a
  • a related actuator 35 may, for example
  • the adjusting device 35 is illustrated in Fig. 1 axially following the drive member 4 as an electrically controllable magnetic actuator, which is supported axially fixed position.
  • This conversion takes place in the embodiment, in each case via a concentric to the drive part 4 and the hub 5, from the Hub 5 enclosed actuator 15, as illustrated for example in Fig. 1.
  • This actuator 15 comprises two to the axis of rotation 3 of the
  • Fan wheel 1 concentric and thus also to the hub axle coaxial annular discs 16, 17, which at their inner, delimiting their central recess ring circumference, each with at least substantially congruent, such as
  • Meander-shaped inner contours 18 are provided. With respect to their meandering inner contours 18 are the
  • Ring discs 16, 17 offset in the circumferential direction against each other axially fixed position connected to each other.
  • Tuned to the inner contour 18 of the annular discs 16, 17 is a switching star 19 with a circumferential, complementary meandering
  • the respective meander-shaped contouring 18 or 32 results from the fact that the annular discs 16, 17 have open recesses 20 for the respective inner annular circumference, which are delimited from each other by arms 21 that rebound radially between the recesses 20.
  • Width of the recesses 20 of the annular discs 16, 17 is greater than the width of the arms 22 of the switch S ternes 19th
  • Switching window 30 is formed.
  • Recesses 20 can by Kantenverrundungen and / or
  • the switching star 19 is fixed to the coaxial hub 5 on an axial overlap position to the annular discs 16, 17th
  • Switch S ternes 19 to the hub head 27 in question.
  • Switch star 19 is provided over the respective circumference at least one respective switching window 30, but preferably at least two or more mutually diametrically opposed switching window 30 are provided with respect to the axis of rotation 3 symmetrical supporting forces.
  • the actuator 15 according to the invention has outside the
  • fan blades 8 training is provided in which the fan blades 8 feet position between two to the drive unit 2 position and in the direction of the axis of rotation 3 of the fan wheel 1 coaxially opposed drive tracks 6.7
  • Transverse plane 14 coincides with the orbital plane 13.
  • Circumferential direction of the driven fan wheel 1 illustrated by the arrow 31 illustrated by the arrow 31.
  • the fan blades 8 are set at an angle depending on the desired conveying direction, with reference to FIG. 7 in the sense of a blowing operation in a blowing position 26
  • the neutral with respect to the conveying direction Umtsch ein the fan blades 8 can also be used according to the invention as a held intermediate layer to interrupt despite occasional continuous drive of the fan wheel 1, the air delivery and temporarily shut off.
  • Umtschraum ein the fan blades 8 can also be used according to the invention as a held intermediate layer to interrupt despite occasional continuous drive of the fan wheel 1, the air delivery and temporarily shut off.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Automatic Cycles, And Cycles In General (AREA)

Abstract

L'invention concerne une roue de ventilateur devant être entraînée dans un sens de rotation pourvue d'une unité d'entraînement centrale, de moyeux coaxiaux à l'unité d'entraînement et de pales de ventilateurs radiales installées dans les moyeux, pour laquelle est prévue une conception telle que les pales de ventilateurs entrent en prise du côté de leur pied entre deux chenilles d'entraînement se trouvant dans une position fixe et par rapport à l'unité de rotation disposées les unes en face des autres et coaxiales dans la direction de l'axe de rotation de la roue de ventilateur, et que leur angle de pales peut être déplacé par entraînement par le biais respectivement d'une des chenilles d'entraînement autour de leurs axes de pale au-dessus d'un plan d'enveloppe perpendiculaire au plan de circulation sur des directions d'alimentation opposées.
EP19717110.1A 2018-03-20 2019-03-15 Roue de ventilateur devant être entraînée dans un sens de rotation Active EP3768977B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018106455.1A DE102018106455B4 (de) 2018-03-20 2018-03-20 In einer Drehrichtung anzutreibendes Lüfterrad
PCT/DE2019/100234 WO2019179562A1 (fr) 2018-03-20 2019-03-15 Roue de ventilateur devant être entraînée dans un sens de rotation

Publications (2)

Publication Number Publication Date
EP3768977A1 true EP3768977A1 (fr) 2021-01-27
EP3768977B1 EP3768977B1 (fr) 2023-04-26

Family

ID=66102839

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19717110.1A Active EP3768977B1 (fr) 2018-03-20 2019-03-15 Roue de ventilateur devant être entraînée dans un sens de rotation

Country Status (8)

Country Link
US (1) US11365749B2 (fr)
EP (1) EP3768977B1 (fr)
DE (1) DE102018106455B4 (fr)
DK (1) DK3768977T3 (fr)
ES (1) ES2951018T3 (fr)
FI (1) FI3768977T3 (fr)
PL (1) PL3768977T3 (fr)
WO (1) WO2019179562A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019134887A1 (de) * 2019-12-18 2021-06-24 Ie Assets Gmbh & Co. Kg Lüfterrad
US11778947B2 (en) * 2021-01-13 2023-10-10 Deere & Company Automated adjustable angle of incidence fan for cleaning sugarcane
CN113082276B (zh) * 2021-04-09 2022-12-23 河北医科大学第二医院 一种预防院内感染的消毒灭菌护理装置
CN114576188B (zh) * 2022-02-23 2023-04-25 浙江尔格科技股份有限公司 换热器用可自动调节风向的风机
DE102023119250A1 (de) * 2023-07-20 2025-01-23 Ie Assets Gmbh & Co. Kg Lüfterrad
CN118462619A (zh) * 2024-06-04 2024-08-09 广东晟辉科技股份有限公司 一种一体风机及其优化设计方法
DE102024120215B3 (de) 2024-07-17 2025-07-31 Ie Assets Gmbh & Co. Kg Umkehrlüfter und Betriebsverfahren
CN119288891B (zh) * 2024-11-29 2025-10-17 苏州元脑智能科技有限公司 一种防逆转散热风扇及服务器

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2563011A (en) * 1948-06-29 1951-08-07 Arthur E Dehnicke Two-part hub adjustable pitch fan
US3054458A (en) * 1959-07-11 1962-09-18 Marsico Corrado Variable pitch fan
GB1443735A (en) 1972-09-08 1976-07-21 Parsons Co Ralph M Production of substitute natural gas
JPS6027837B2 (ja) * 1981-07-31 1985-07-01 株式会社荏原製作所 軸流送風機
US4919623A (en) * 1989-02-13 1990-04-24 Amp Incorporated Burn-in socket for integrated circuit device
US6592328B1 (en) * 2001-04-17 2003-07-15 Emerson Electric Co. Method and apparatus for adjusting the pitch of a fan blade
DE102004035631B4 (de) * 2004-07-22 2006-04-13 Hägele GmbH Lüfterrad, insbesondere im Kühlsystem von Brennkraftmaschinen einsetzbares Lüfterrad
US20120240878A1 (en) * 2011-03-21 2012-09-27 Haegele Karl Internal combustion engine with fan system

Also Published As

Publication number Publication date
DE102018106455B4 (de) 2020-03-26
DK3768977T3 (da) 2023-07-24
PL3768977T3 (pl) 2023-08-21
EP3768977B1 (fr) 2023-04-26
ES2951018T3 (es) 2023-10-17
WO2019179562A1 (fr) 2019-09-26
FI3768977T3 (fi) 2023-07-25
US11365749B2 (en) 2022-06-21
US20210003141A1 (en) 2021-01-07
DE102018106455A1 (de) 2019-09-26

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