US20210164355A1 - Fan wheel driven in only one rotational direction - Google Patents

Fan wheel driven in only one rotational direction Download PDF

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Publication number
US20210164355A1
US20210164355A1 US17/121,960 US202017121960A US2021164355A1 US 20210164355 A1 US20210164355 A1 US 20210164355A1 US 202017121960 A US202017121960 A US 202017121960A US 2021164355 A1 US2021164355 A1 US 2021164355A1
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US
United States
Prior art keywords
fan wheel
drive
fan
rotation
hub
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.)
Abandoned
Application number
US17/121,960
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English (en)
Inventor
Karl Haegele
Markus Lechler
Samuel Arnold
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
Assigned to IE ASSETS GMBH & CO. KG reassignment IE ASSETS GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Arnold, Samuel, HAEGELE, KARL, LECHLER, MARKUS
Publication of US20210164355A1 publication Critical patent/US20210164355A1/en
Priority to US18/205,021 priority Critical patent/US12152597B2/en
Abandoned 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
    • F04D29/26—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
    • F04D29/366—Adjustment by interaction of inertion and lift
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D7/00—Rotors with blades adjustable in operation; Control thereof
    • F01D7/02—Rotors with blades adjustable in operation; Control thereof having adjustment responsive to speed
    • 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
    • F04D19/005—Axial flow fans reversible 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
    • F04D29/34—Blade mountings
    • F04D29/36—Blade mountings adjustable
    • 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
    • F04D29/38—Blades
    • F04D29/382—Flexible blades

Definitions

  • the invention concerns a fan wheel which is driven in only one rotational direction with fan blades which extend radially from the fan wheel hub in which they are supported so as to be rotatable about their blade axes and are driven by the hub.
  • the fan blades are inclined with respect to the plane of rotation of the fan wheel and their inclination is switchable via a switch-over plane extending transverse to the plane of rotation of the fan wheel so that their blade angles can be adjusted to opposite blowing directions.
  • Such fan wheels are generally known but are provided with expensive means for the adjustment of the inclination of the blade angle with respect to the plane of rotation of the fan wheel, in particular with respect to a switch-over of the fan blades to an opposite blowing direction through a switch-over plane extending transverse to the plane of rotation of the fan wheel.
  • a fan wheel including a fan wheel hub with fan blades supported rotatably on the fan wheel hub so as to extend radially therefrom, and a fan wheel drive accommodated in the fan wheel hub so as to be rotatable relative thereto within a limited angular range and connected to the fan blades for a corresponding rotation of the fan blades about their longitudinal axes, whereby the flow direction of the fan wheel is reversible by an inertia-based rotation of the fan wheel relative to the fan wheel drive.
  • the solution according to the invention can be realized without additional expenditures. This can be done in particular with common measures since controls for the drive of the fan wheels are generally anyway present and the utilization of mass forces depending on speed changes of the drive are possible without additional expenditures.
  • the stop-limited free-wheeling movement of the fan wheel permits further an inertia-based rotation of the fan wheel: By a rapid speed reduction or interruption of the drive force or, respectively, a rapid acceleration of the drive offers the angular positions of the drive relative to the fan wheel can be changed for influencing the adjustment of the angular position of the fan blades about the blade axes for opposite blowing directions or for a correction based on aerodynamic points of view.
  • the possible effects on the operation of the fan wheel and on operation-dependent corrections in the mode of operation such as for example the switch-over from a suction operating mode of the fan wheel to a blowing operating mode as provided by the present invention are achieved via effects which are dependent on the adjustment of the angle of the wheel blades for opposite blowing directions while the fan wheel direction of rotation remains the same.
  • the fan blades can be rotated about the blade axes in a neutral switch-over plane which extends normal to the plane of rotation of the fan wheel to a blowing operating mode by a decrease of the fan drive speed. With an increasing speed of the drive, the blades can be rotated about their blade axes in an opposite direction to be pivoted again to the original suction generating operating position.
  • the fan wheel operation can be controlled between a suction and blow operation solely depending on a change of the drive speed. And this can be achieved almost without additional control expenditures. If necessary, this can be made dependent on desirable additional functions, such as a switch-over between suction and blowing operation based on a pressure application dependency or pressure application basis.
  • FIG. 1 a front view of the fan wheel including a central, driven hub with radially extending fan blades which are inclined with regard to the plane of rotation of the blade wheel corresponding to the desired flow direction at a certain blade angle and whose rotational positions around the blade axes are stop-limited in their opposite blowing direction end positions,
  • FIG. 2 a schematic representation of the fan wheel in a front view of a fan blade which is inclined with regard to a plane of rotation of the fan wheel by a blade angle
  • FIG. 3 a schematic and simplified cross-sectional view of the fan wheel taken along line III-III in FIG. 1 , and
  • FIG. 4 an operating sequence representation of a fan wheel driven in only one direction for the adjustment of the radial blades which are supported in the wheel hub so as to be rotatable about their radially extending axes for obtaining opposite flow directions.
  • the fan blades are rotated about their radial axes.
  • the speed of the drive of the fan wheel is reduced or, respectively, increased whereby the fan blade is rotated by the resulting inertia-based rotation of the fan wheel with respect to the fan drive to a position in which the flow direction provided by the fan wheel is changed.
  • FIGS. 1 and 3 show a fan wheel according to the invention with respect to its essential components. It is designated as a whole with the reference numeral 1 .
  • the fan wheel 1 comprises a hub 2 on the circumference thereof radially extending fan blades 3 are arranged. As shown in FIG. 3 , the fan blades 3 have, at their feet, blade journals 4 via which they are supported in the hub 2 so as to be rotatable about their radial blade axes 5 . In this way, they are each adjustable to generate flows in opposite directions by a rotation over a switch-over plane 9 forming a neutral plane n which extends normal to the plane of rotation 6 of the fan wheel 1 .
  • the direction of rotation of the fan wheel 1 is indicated in FIG. 2 by the reference numeral 19 .
  • The, in accordance with the blade angle 7 forward-facing, front side of the fan blade 5 is designated by the numeral 21 .
  • the interior 8 of the hub accommodates the drive 10 of the blade wheel 1 , preferably an electric motor, arranged so as to support the hub 2 .
  • the drive 10 is rotatable about its axis 17 relative to the hub 2 within limits formed by stops.
  • the hub 2 includes a cover part 13 which corresponds to a base part 14 surrounding the drive 10 radially in the area of the blade journals 4 .
  • the cover part 13 is provided with the stops in the form of pin-like elements 11 arranged opposite the drive 10 that is facing the drive 10 and extending into guide slots 12 formed in the drive 10 and limiting the range of rotation of the drive 10 relative to the hub 2 in which the drive 10 is accommodated.
  • the drive 10 is provided, preferably at its front side facing the cover part 13 , with an annular gear ring 15 which is in engagement with pinions 16 provided on the foot end journals 4 so as to form a drive connection of the drive 10 with the fan blades 3 .
  • the use of cam- and/or eccentric drives is also possible in connection with the invention, not shown in the drawings.
  • the fan blades 3 can be transposed via the switch-over plane 9 so as to blow in opposite flow directions while the direction of rotation 19 of the fan wheel 1 remains the same.
  • the fan wheel 1 can therefore be operated in a suction or a blowing mode, that is, for example in a suction cooling mode or in a blowing cleaning mode of operation simply by pivoting the fan blades 3 through the switch-over plane 9 to the respective opposite blowing direction.
  • the fan blades 3 are in each case so oriented that the same front blade side 21 faces the incoming air so that the same operating conditions are provided for the suction and the blowing operation.
  • the switch-over of the fan blades 3 is initiated by a rapid reduction of the speed of the drive 10 .
  • the inertia force of the fan wheel causes the switch-over via the switch-over plane 9 of the blades 3 .
  • the switch-over plane 9 is shown in the operating sequence representation of FIG. 4 as an area delimited by dashed lines in which a rapid speed reduction of the drive 10 occurs by the interruption of the drive 10 resulting in the inertia-based rotation of the fan wheel corresponding to the adjustment range of the fan blades 3 .
  • Such reversibility of the fan wheel 1 with respect to the flow direction can also be combined with a possibility to adjust the blade angle 7 of the fan blade 3 with respect to the amount of air moved by the fan wheel which would provide for further application possibilities.
  • the drive 10 can be rotatable relative to the fan wheel hub 2 within elastic stop limits, for example, dependent on thermal set values using thermo elements, shape memory materials or similar. In this respect, it may also be expedient to change the rotational position of the annular gear ring 15 in the drive train of the drive 10 and/or to the hub 2 .
  • a fan wheel 1 which is rotatable only in one direction but whose fan blades 3 are rotatable about the radial fan blade axes 5 in a switch-over plane 9 which extends normal to the plane of rotation 6 of the fan blades 3 by an inertia-based rotation of the fan wheel 1 with respect to the fan drive 10 and by an aerodynamic impact on the fan blades 3 to move the air in an opposite directions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US17/121,960 2018-06-18 2020-12-15 Fan wheel driven in only one rotational direction Abandoned US20210164355A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US18/205,021 US12152597B2 (en) 2018-06-18 2023-06-02 Fan wheel driven in only one rotational direction

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102018114534.9A DE102018114534B4 (de) 2018-06-18 2018-06-18 In nur einer Drehrichtung angetriebenes Lüfterrad
DE102018114534.9 2018-06-18
PCT/DE2019/100480 WO2019242799A1 (de) 2018-06-18 2019-05-31 In nur einer drehrichtung angetriebenes lüfterrad

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2019/100480 Continuation-In-Part WO2019242799A1 (de) 2018-06-18 2019-05-31 In nur einer drehrichtung angetriebenes lüfterrad

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US18/205,021 Continuation-In-Part US12152597B2 (en) 2018-06-18 2023-06-02 Fan wheel driven in only one rotational direction

Publications (1)

Publication Number Publication Date
US20210164355A1 true US20210164355A1 (en) 2021-06-03

Family

ID=67539170

Family Applications (1)

Application Number Title Priority Date Filing Date
US17/121,960 Abandoned US20210164355A1 (en) 2018-06-18 2020-12-15 Fan wheel driven in only one rotational direction

Country Status (8)

Country Link
US (1) US20210164355A1 (pl)
EP (1) EP3743626B1 (pl)
CN (1) CN111936750B (pl)
DE (1) DE102018114534B4 (pl)
ES (1) ES2898347T3 (pl)
PL (1) PL3743626T3 (pl)
RU (1) RU2741533C1 (pl)
WO (1) WO2019242799A1 (pl)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220099098A1 (en) * 2019-12-18 2022-03-31 Ie Assets Gmbh & Co. Kg Fan wheel
US12152597B2 (en) * 2018-06-18 2024-11-26 Ie Assets Gmbh + Co. Kg Fan wheel driven in only one rotational direction

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11895951B2 (en) * 2020-12-04 2024-02-13 Deere & Company Fan hub cover
CN115681090B (zh) * 2022-11-08 2025-11-28 湖北特威特动力科技股份有限公司 一种空压机的智能冷却装置及其冷却方法
DE102022211937B3 (de) 2022-11-10 2024-01-04 Ie Assets Gmbh & Co. Kg Lüfterflügel mit Drehlagerung und Lüfterrad
DE102023119250A1 (de) 2023-07-20 2025-01-23 Ie Assets Gmbh & Co. Kg Lüfterrad
CN117869368B (zh) * 2024-01-10 2024-08-23 富乐精工机械(东台)有限公司 一种便于更换的风机轴盘结构
DE102024120215B3 (de) 2024-07-17 2025-07-31 Ie Assets Gmbh & Co. Kg Umkehrlüfter und Betriebsverfahren

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE433108B (sv) * 1977-05-17 1984-05-07 Flaekt Ab Axialflekt med ett flekthjul med instellbara skovlar
JPS59185898A (ja) * 1983-04-08 1984-10-22 Aisin Seiki Co Ltd フアンブレ−ド
CN2171024Y (zh) * 1992-09-28 1994-07-06 中国船舶工业总公司第七研究院第七○三研究所 动叶片转动机构
CN2143269Y (zh) * 1992-09-28 1993-10-06 中国船舶工业总公司第七研究院第七○三研究所 可反风通风机动叶自动转角机构
RU2124654C1 (ru) * 1998-02-06 1999-01-10 Открытое акционерное общество Московский вентиляторный завод Рабочее колесо осевого вентилятора
DE59911215D1 (de) * 1998-03-26 2005-01-13 Haegele Gmbh Lüfterrad, insbesondere im Kühlsystem von Brennkraftmaschinen einsetzbares Lüfterrad
CN201318323Y (zh) * 2008-11-11 2009-09-30 漳州灿坤实业有限公司 可调节叶片角度的风扇
DE102008054497A1 (de) * 2008-12-10 2010-06-17 BSH Bosch und Siemens Hausgeräte GmbH Flügelrad für einen Ventilator
DE102010034604A1 (de) * 2010-08-13 2012-02-16 Ziehl-Abegg Ag Flügelrad für einen Ventilator
DE102011001426A1 (de) * 2011-03-21 2012-09-27 Hägele GmbH Brennkraftmaschine mit einem Lüftersystem
US8807939B2 (en) * 2011-06-15 2014-08-19 General Electric Company System for adjusting characteristics of a fan
DE102013008902B3 (de) * 2013-05-27 2014-08-28 Hägele GmbH Lüfterradanordnung mit drehend angetriebener Nabe
CN107503983A (zh) * 2017-08-29 2017-12-22 龙口中宇热管理系统科技有限公司 一种多叶型可变角度风扇

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12152597B2 (en) * 2018-06-18 2024-11-26 Ie Assets Gmbh + Co. Kg Fan wheel driven in only one rotational direction
US20220099098A1 (en) * 2019-12-18 2022-03-31 Ie Assets Gmbh & Co. Kg Fan wheel
US11708836B2 (en) * 2019-12-18 2023-07-25 Ie Assets Gmbh & Co. Kg Fan wheel

Also Published As

Publication number Publication date
ES2898347T3 (es) 2022-03-07
WO2019242799A1 (de) 2019-12-26
DE102018114534A1 (de) 2019-12-19
DE102018114534B4 (de) 2020-10-08
EP3743626A1 (de) 2020-12-02
RU2741533C1 (ru) 2021-01-26
PL3743626T3 (pl) 2022-01-31
EP3743626B1 (de) 2021-09-08
CN111936750A (zh) 2020-11-13
CN111936750B (zh) 2022-04-12
BR112020025836A2 (pt) 2021-04-06

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