EP0115005B1 - Ventilateur axial avec des pales réglables automatiques correspondant au sens de rotation - Google Patents

Ventilateur axial avec des pales réglables automatiques correspondant au sens de rotation Download PDF

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Publication number
EP0115005B1
EP0115005B1 EP83112707A EP83112707A EP0115005B1 EP 0115005 B1 EP0115005 B1 EP 0115005B1 EP 83112707 A EP83112707 A EP 83112707A EP 83112707 A EP83112707 A EP 83112707A EP 0115005 B1 EP0115005 B1 EP 0115005B1
Authority
EP
European Patent Office
Prior art keywords
fan
blades
fan blades
rotation
axial
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
Application number
EP83112707A
Other languages
German (de)
English (en)
Other versions
EP0115005A1 (fr
Inventor
Manfred Dipl.-Ing. Heerlein
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to AT83112707T priority Critical patent/ATE20767T1/de
Publication of EP0115005A1 publication Critical patent/EP0115005A1/fr
Application granted granted Critical
Publication of EP0115005B1 publication Critical patent/EP0115005B1/fr
Expired 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
    • 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

Definitions

  • the invention relates to an axial fan with fan blades which adjust themselves according to the direction of rotation, which are arranged pivotably on the fan edge and are limited in their pivoting movement by stops provided on the fan edge.
  • Such an axial fan is known from DE-OS 2 736 773.
  • the individual fan blades are pivotably arranged on this fan by means of a separate bearing pin.
  • the fan blades When the direction of rotation is reversed, the fan blades automatically pivot into the other end position due to their inertia and also due to the air resistance, so that the air is conveyed in the same direction even when the direction of rotation is reversed.
  • the pivotable arrangement means a high manufacturing effort, since each fan blade must be installed individually.
  • the invention has for its object to reduce the manufacturing costs for an axial fan with pivotable fan blades, so that use with large numbers of machines is possible.
  • the fan wheel made of plastic in one piece has spokes between its hub and a guide ring, with which the fan blades are connected via film hinges. This eliminates the complex assembly costs for the pivotable attachment of the fan blades.
  • a strain relief of the film hinges during operation is achieved in that holding elements are provided both on the hub and on the guide ring, which in the respective end position of the fan blades form a positive connection with the fan blade in the axial direction. The tensile forces acting on the fan blades are absorbed by these holding elements and do not strain the film hinges.
  • spokes 4 are provided between the hub 2 and a guide ring.
  • a fan blade 5 is pivotally connected to each spoke 4 via a film hinge 6. The pivoting movement of the fan blades is limited by stops 9 formed on the hub 2.
  • pins 7 and on the guide ring 3 radially to the hub 2 pins 8 are arranged.
  • the pins 7 engage behind the fan blades 5 in an incision 10 provided on the hub-side end.
  • the pins 8 protrude in the end position of the fan blades, which is shown in broken lines in FIG is.
  • the pins 7 and 8 form a positive connection with the fan blades 5 in the axial direction, so that the tensile forces acting in the axial direction on the fan blades 5 are absorbed by the pins 7 and 8 and thus kept away from the film hinges 6.
  • the fan wheel 1 can be made in one piece from plastic.
  • the separate mounting of the pivotable fan blades 5 is therefore not necessary, so that an inexpensive axial fan is available for machines that are reversible in the direction of rotation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (4)

1. Ventilateur axial comportant des pales qui se règlent d'elles-mêmes en fonction du sens de rotation, sont montées de façon à pouvoir pivoter sur le rotor du ventilateur et sont limitées, dans leur mouvement de pivotement, par des butées prévues sur le rotor du ventilateur, caractérisé par le fait que le rotor
(1) du ventilateur, fabriqué en un seul bloc de matière plastique, comporte entre son moyeu (2) et une couronne directrice (3), des rayons (4) auxquels les pales
(5) du ventilateur sont reliées par l'intermédiaire de charnières (6) en forme de films.
2. Ventilateur axial suivant la revendication 1, caractérisé par le fait qu'aussi bien sur le moyeu (2) que sur la couronne conductrice (3), il est prévu des organes de maintien (7 et 8) qui établissent, suivant la direction axiale, une liaison par formes complémentaires avec les pales (5) du ventilateur, lorsque ces dernières sont dans leur position finale respective.
EP83112707A 1982-12-31 1983-12-16 Ventilateur axial avec des pales réglables automatiques correspondant au sens de rotation Expired EP0115005B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83112707T ATE20767T1 (de) 1982-12-31 1983-12-16 Axialluefter mit sich selbst entsprechend der drehrichtung einstellenden luefterfluegeln.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3248760A DE3248760C2 (de) 1982-12-31 1982-12-31 Axiallüfter mit sich selbst entsprechend der Drehrichtung einstellenden Lüfterflügeln
DE3248760 1982-12-31

Publications (2)

Publication Number Publication Date
EP0115005A1 EP0115005A1 (fr) 1984-08-08
EP0115005B1 true EP0115005B1 (fr) 1986-07-16

Family

ID=6182250

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83112707A Expired EP0115005B1 (fr) 1982-12-31 1983-12-16 Ventilateur axial avec des pales réglables automatiques correspondant au sens de rotation

Country Status (4)

Country Link
US (1) US4515511A (fr)
EP (1) EP0115005B1 (fr)
AT (1) ATE20767T1 (fr)
DE (2) DE3248760C2 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3701995C1 (de) * 1987-01-23 1987-12-03 Degussa Vorrichtung zur gleichmaessigen Beaufschlagung eines durchstroembaren Waermegutes mit einer Fluid-Stroemung
GB2204644A (en) * 1987-05-15 1988-11-16 Intelbrit Technologies Reversible-pump impeller
GB2205128A (en) * 1987-05-22 1988-11-30 Daniel Stefanini Pumps
EP0303917B1 (fr) * 1987-08-21 1991-10-30 Ishikawajima-Harima Heavy Industries Co., Ltd. Appareil à fluide
GB2232442B (en) * 1989-04-01 1993-01-06 Danco Plastics Ltd Pumps
US5183382A (en) * 1991-09-03 1993-02-02 Caterpillar Inc. Low noise rotating fan and shroud assembly
US5525648A (en) 1991-12-31 1996-06-11 Minnesota Mining And Manufacturing Company Method for adhering to hard tissue
US20030228234A1 (en) * 2002-06-06 2003-12-11 Sunonwealth Electric Machine Industry Co., Ltd. Axial flow fan structure
TWM354786U (en) * 2008-11-18 2009-04-11 Delta Electronics Inc Fan and fan wheel thereof
US8662846B2 (en) * 2010-09-14 2014-03-04 General Electric Company Bidirectional fan having self-adjusting vane
FR2986280B1 (fr) * 2012-01-27 2016-09-16 Converteam Tech Ltd Rotor d'hydrolienne comportant au moins une pale mobile en rotation autour d'un axe radial et des moyens de limitation du mouvement en rotation de ladite pale, et hydrolienne comprenant un tel rotor
US9188130B2 (en) * 2013-01-09 2015-11-17 GM Global Technology Operations LLC Locking device for cooling fan assembly
JP6632927B2 (ja) * 2016-03-30 2020-01-22 住友重機械工業株式会社 回転装置
DE102020110274A1 (de) 2020-04-15 2021-10-21 Bayerische Motoren Werke Aktiengesellschaft Vorrichtung, umfassend ein Lüfterrad mit einer Radnabe und wenigstens zwei Lüfterschaufeln

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE92384C (fr) *
US1882961A (en) * 1928-11-02 1932-10-18 Ass Elect Ind Fan or blower
US2111817A (en) * 1935-12-27 1938-03-22 Silent Glow Oil Burner Corp Rotary bladed structure
US2257976A (en) * 1938-11-02 1941-10-07 Charles L Moorman Variable pitch propeller
US2609058A (en) * 1949-03-26 1952-09-02 Charles I Place Propeller fan construction
US2620039A (en) * 1951-07-03 1952-12-02 Arthur P Allen Reversible rotary fan
GB745084A (en) * 1953-07-07 1956-02-22 Alan Victor Rhead Improvements in or relating to apparatus for utilizing wave energy
US2909229A (en) * 1956-08-08 1959-10-20 Cross Harrel Reversible pitch fan
DE1300193B (de) * 1965-06-24 1969-07-31 Holzer Walter Verstellvorrichtung fuer die Fluegel eines Ventilators
US3758231A (en) * 1971-07-15 1973-09-11 Vernco Corp Flexible fan
JPS512647B2 (fr) * 1971-12-09 1976-01-28
JPS512646B2 (fr) * 1972-01-08 1976-01-28
US3812812A (en) * 1973-06-25 1974-05-28 M Hurwitz Trolling propeller with self adjusting hydrodynamic spoilers
DE2548937A1 (de) * 1975-10-31 1977-05-12 Baensch Tetra Werke Rotor fuer kraft- und/oder arbeitsmaschinen
CS223352B1 (cs) * 1976-10-01 1983-10-28 Josef Hlavac Axiální ventilátor reversibilního elektrického točivého stroje
JPS5688992A (en) * 1979-12-21 1981-07-18 Aisin Seiki Co Ltd Axial fan for cooling internal combustion engine

Also Published As

Publication number Publication date
ATE20767T1 (de) 1986-08-15
DE3248760A1 (de) 1984-07-12
DE3364548D1 (en) 1986-08-21
US4515511A (en) 1985-05-07
DE3248760C2 (de) 1984-10-31
EP0115005A1 (fr) 1984-08-08

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