EP1798420A2 - Axial fan with variable pitch blades and method for mounting the fan - Google Patents

Axial fan with variable pitch blades and method for mounting the fan Download PDF

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Publication number
EP1798420A2
EP1798420A2 EP06025183A EP06025183A EP1798420A2 EP 1798420 A2 EP1798420 A2 EP 1798420A2 EP 06025183 A EP06025183 A EP 06025183A EP 06025183 A EP06025183 A EP 06025183A EP 1798420 A2 EP1798420 A2 EP 1798420A2
Authority
EP
European Patent Office
Prior art keywords
support ring
spar
axial fan
impeller
wings
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
EP06025183A
Other languages
German (de)
French (fr)
Other versions
EP1798420B1 (en
EP1798420A3 (en
Inventor
Frank Kinzer
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.)
TLT Turbo GmbH
Original Assignee
TLT Turbo 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 TLT Turbo GmbH filed Critical TLT Turbo GmbH
Priority to PL06025183T priority Critical patent/PL1798420T3/en
Publication of EP1798420A2 publication Critical patent/EP1798420A2/en
Publication of EP1798420A3 publication Critical patent/EP1798420A3/en
Application granted granted Critical
Publication of EP1798420B1 publication Critical patent/EP1798420B1/en
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
    • F04D29/34—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
    • F04D29/34—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
    • F04D29/34—Blade mountings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20012—Multiple controlled elements
    • Y10T74/20018—Transmission control
    • Y10T74/20085—Restriction of shift, gear selection, or gear engagement

Definitions

  • the invention relates to an axial fan with an impeller and adjustable wings with the features of the preamble of claim 1 and a method for mounting the wings.
  • Modern axial fans are controllable working machines that convert mechanical energy into flow energy.
  • the axial fans are controlled via the speed or the angle of attack of the blades. If the wing position can be changed during operation, the wing must be mounted on a mounted shaft, a spar. Such a spar is so far inserted from the outside into the impeller and bolted from the inside. Such a procedure is relatively complex and requires various components and components.
  • the invention has for its object to simplify the construction of the Holmlagerung the generic axial fan and thus to make more economical.
  • the inventive construction of the Hollegagerung allows mounting of the spars and wings of the axial fan from the inside of the impeller forth.
  • In addition to the fixation of the Holmlagerung in the support ring allows to be performed from the outside screwing the Holmes now that the wings directly to the Holmmuttern can be attached.
  • the axial fan includes an impeller 1 with adjustable wings 2.
  • the impeller 1 is mounted on a shaft 3 and consists of a hub 4, a support ring 5, a cover 6 and a cover. 7
  • an adjusting disc 8 Inside the hub 4 is an adjusting disc 8, which is displaceable via a hydraulic adjusting device 9 in the longitudinal direction of the axial fan.
  • the adjusting device 9 is known and not the subject of the invention, so that is dispensed with a more detailed description.
  • the adjusting disc 8 is provided with a circumferential groove, engage in the cranked lever 10.
  • Each lever 10 is connected to a spar 11 which is rotatably mounted in the support ring 5. With a displacement of the adjusting disc 8, the spars 11 are rotated about their longitudinal axis via the lever 10.
  • one of the wings 2 is attached to each spar 11.
  • About the adjusting 8 and the Adjustment 9 can change the employment of the wings 2.
  • the adjustable wings 2 require a special, easy common storage.
  • Each spar 11 is passed through a radial bore 12 in the support ring 5 and by an extension of the bore 12 mounted attachment 13.
  • the bearing of the spar 11 in the support ring 5 and the attachment 13 consists of a roller bearing 14 and a sleeve 15.
  • the roller bearing 14 is received by an enlargement 16 of the bore 12 at the radially inner edge of the support ring 5.
  • the enlargement 16 of the bore 12 forms a shoulder 17 on which the roller bearing 14 rests on the inside of the support ring 5.
  • a receptacle 18 is provided for the sleeve 15 of the Holemag réelle. Within this receptacle 18, the sleeve 15 is located on the attachment 13 from the outside.
  • the outer end of the spar 11 protrudes from the attachment 13 of the support ring 5 and is provided on this part with a thread.
  • a Holmmutter 19 is screwed in the thread of the spar 11 .
  • the spar nut 19 is provided with a flange 20 having an inner and an outer edge.
  • the cross nut 19 is supported with an end face on the attachment 13 of the support ring 5.
  • the Holmmutter 19 thus fixes the storage of the spar 11 in the support ring. 5
  • Each wing 2 is connected directly to the spar nut 19.
  • screws 21 are screwed by a foot 22 of the wing 2 in the cross nut 19.
  • the impeller 1 is shown without spars 11 and 2 wings. On this basis, first the roller bearing 14 is pushed onto the spar 11 and the sleeve 15 glued into the attachment 13 of the support ring 5.
  • the spar 11 is inserted with the roller bearing 14 from the inside into the support ring 5 and secured with a retaining ring over a seal cover against falling inwards (Fig 2.2).
  • the cross nut 19 is inserted from above and screwed directly to the spar 11 (FIG. 2.3).
  • the wing 2 is connected by means of screws 21 with the handle nut 19 ( Figure 2.4).

Landscapes

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

Abstract

Axial fan comprises adjustable blades (2) and a running wheel (1) with a support ring (5) in which are positioned capping pieces (11) with bearings each consisting of a rolling bearing (14) lying on the support ring and a bushing (15) lying on an attachment (13). The capping piece is fixed in the support ring by a screw nut (19) which is screwed onto the outer end of the capping piece. An independent claim is also included for a method for assembling the blades of the axial ventilator. Preferred Features: The foot (22) of each blade is directly fixed to the screw nut.

Description

Die Erfindung betrifft einen Axialventilator mit einem Laufrad und verstellbaren Flügeln mit den Merkmalen des Oberbegriffs des Anspruches 1 sowie ein Verfahren zur Montage der Flügel.The invention relates to an axial fan with an impeller and adjustable wings with the features of the preamble of claim 1 and a method for mounting the wings.

Moderne Axialventilatoren sind regelbare Arbeitsmaschinen, die mechanische Energie in Strömungsenergie umwandeln. Die Regelung der Axialventilatoren erfolgt über die Drehzahl oder die Anstellwinkel der Flügel. Soll die Flügelstellung während des Betriebes verändert werden können, muss der Flügel auf einer gelagerten Welle, einem Holm, befestigt sein. Ein solcher Holm wird bisher von außen in das Laufrad gesteckt und von innen verschraubt. Eine solche Verfahrensweise ist verhältnismäßig aufwändig und erfordert verschiedene Komponenten und Bauteile.Modern axial fans are controllable working machines that convert mechanical energy into flow energy. The axial fans are controlled via the speed or the angle of attack of the blades. If the wing position can be changed during operation, the wing must be mounted on a mounted shaft, a spar. Such a spar is so far inserted from the outside into the impeller and bolted from the inside. Such a procedure is relatively complex and requires various components and components.

Der Erfindung liegt die Aufgabe zugrunde, die Konstruktion der Holmlagerung des gattungsgemäßen Axialventilators zu vereinfachen und damit wirtschaftlicher zu gestalten.The invention has for its object to simplify the construction of the Holmlagerung the generic axial fan and thus to make more economical.

Die Aufgabe wird bei einem gattungsgemäßen Axialventilator erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruches 1 gelöst. Ein Verfahren zur Montage der Flügel ist Gegenstand des Anspruches 3. Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüche angegeben.The object is achieved in a generic axial fan according to the invention by the characterizing features of claim 1. A method for mounting the wings is the subject of claim 3. Advantageous embodiments of the invention are specified in the subclaims.

Die erfindungsgemäße Konstruktion der Holmlagerung lässt eine Montage der Holme und Flügel des Axialventilators vom Inneren des Laufrades her zu. Neben der Fixierung der Holmlagerung im Tragring ermöglicht die von außen durchzuführende Verschraubung des Holmes nunmehr, dass die Flügel direkt an den Holmmuttern befestigt werden können. Insgesamt werden die Zahl der Bauteile und Komponenten, die für die Holmlagerung erforderlich sind, reduziert sowie der Bearbeitungs- und Montageaufwand verringert.The inventive construction of the Hollegagerung allows mounting of the spars and wings of the axial fan from the inside of the impeller forth. In addition to the fixation of the Holmlagerung in the support ring allows to be performed from the outside screwing the Holmes now that the wings directly to the Holmmuttern can be attached. Overall, the number of components and components that are required for the Hollegagerung, reduced and reduces the processing and assembly costs.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im Folgenden näher erläutert. Es zeigen:

Fig. 1
einen Längsschnitt durch einen Axialventilator nach der Erfindung und
Fig. 2.1 bis 2.5
einen Längsschnitt durch einen Axialventilator in der Reihenfolge der aufeinander folgenden Montageschritte.
An embodiment of the invention is illustrated in the drawing and will be explained in more detail below. Show it:
Fig. 1
a longitudinal section through an axial fan according to the invention and
Fig. 2.1 to 2.5
a longitudinal section through an axial fan in the order of successive assembly steps.

Der Axialventilator enthält ein Laufrad 1 mit verstellbaren Flügeln 2. Das Laufrad 1 ist auf einer Welle 3 befestigt und besteht aus einer Nabe 4, einem Tragring 5, einer Abdeckung 6 und einem Deckel 7.The axial fan includes an impeller 1 with adjustable wings 2. The impeller 1 is mounted on a shaft 3 and consists of a hub 4, a support ring 5, a cover 6 and a cover. 7

Im Inneren der Nabe 4 befindet sich eine Verstellscheibe 8, die über eine hydraulische Verstelleinrichtung 9 in Längsrichtung des Axialventilators verschiebbar ist. Die Verstelleinrichtung 9 ist bekannt und nicht Gegenstand der Erfindung, so dass auf eine nähere Beschreibung verzichtet wird.Inside the hub 4 is an adjusting disc 8, which is displaceable via a hydraulic adjusting device 9 in the longitudinal direction of the axial fan. The adjusting device 9 is known and not the subject of the invention, so that is dispensed with a more detailed description.

Die Verstellscheibe 8 ist mit einer umlaufenden Nut versehen, in die abgekröpfte Hebel 10 eingreifen. Jeder Hebel 10 ist mit einem Holm 11 verbunden, der in dem Tragring 5 drehbar gelagert ist. Bei einer Verschiebung der Verstellscheibe 8 werden über die Hebel 10 die Holme 11 um ihre Längsachse gedreht.The adjusting disc 8 is provided with a circumferential groove, engage in the cranked lever 10. Each lever 10 is connected to a spar 11 which is rotatably mounted in the support ring 5. With a displacement of the adjusting disc 8, the spars 11 are rotated about their longitudinal axis via the lever 10.

Auf die nachfolgend beschriebene Weise ist an jedem Holm 11 einer der Flügel 2 befestigt. Über die Verstellscheibe 8 und die Verstelleinrichtung 9 lässt sich die Anstellung der Flügel 2 verändern.In the manner described below, one of the wings 2 is attached to each spar 11. About the adjusting 8 and the Adjustment 9 can change the employment of the wings 2.

Die verstellbaren Flügel 2 erfordern eine besondere, leicht gängige Lagerung. Jeder Holm 11 ist dazu durch eine radiale Bohrung 12 in dem Tragring 5 und durch einen in Verlängerung der Bohrung 12 angebrachten Aufsatz 13 hindurchgeführt. Die Lagerung des Holmes 11 in dem Tragring 5 und dem Aufsatz 13 besteht aus einem Wälzlager 14 und einer Büchse 15. Das Wälzlager 14 ist von einer Vergrößerung 16 der Bohrung 12 an dem radial innenliegenden Rand des Tragringes 5 aufgenommen. Die Vergrößerung 16 der Bohrung 12 bildet eine Schulter 17, an der das Wälzlager 14 innen am Tragring 5 anliegt.The adjustable wings 2 require a special, easy common storage. Each spar 11 is passed through a radial bore 12 in the support ring 5 and by an extension of the bore 12 mounted attachment 13. The bearing of the spar 11 in the support ring 5 and the attachment 13 consists of a roller bearing 14 and a sleeve 15. The roller bearing 14 is received by an enlargement 16 of the bore 12 at the radially inner edge of the support ring 5. The enlargement 16 of the bore 12 forms a shoulder 17 on which the roller bearing 14 rests on the inside of the support ring 5.

In dem radial äußeren Ende des Aufsatzes 13 des Tragringes 5 ist eine Aufnahme 18 für die Büchse 15 der Holmlagerung vorgesehen. Innerhalb dieser Aufnahme 18 liegt die Büchse 15 von außen am Aufsatz 13 an.In the radially outer end of the attachment 13 of the support ring 5, a receptacle 18 is provided for the sleeve 15 of the Holemagerung. Within this receptacle 18, the sleeve 15 is located on the attachment 13 from the outside.

Das äußere Ende des Holmes 11 ragt aus dem Aufsatz 13 des Tragringes 5 hinaus und ist auf diesem Teil mit einem Gewinde versehen. In das Gewinde des Holmes 11 ist eine Holmmutter 19 eingeschraubt. Die Holmmutter 19 ist mit einem Flansch 20 mit einem inneren und einem äußeren Rand versehen. Im eingeschraubten Zustand stützt sich die Holmmutter 19 mit einer Stirnfläche an dem Aufsatz 13 des Tragringes 5 ab. Die Holmmutter 19 fixiert damit die Lagerung des Holmes 11 in dem Tragring 5.The outer end of the spar 11 protrudes from the attachment 13 of the support ring 5 and is provided on this part with a thread. In the thread of the spar 11 a Holmmutter 19 is screwed. The spar nut 19 is provided with a flange 20 having an inner and an outer edge. When screwed in, the cross nut 19 is supported with an end face on the attachment 13 of the support ring 5. The Holmmutter 19 thus fixes the storage of the spar 11 in the support ring. 5

Jeder Flügel 2 ist direkt mit der Holmmutter 19 verbunden. Dabei sind Schrauben 21 durch einen Fuß 22 des Flügels 2 in die Holmmutter 19 geschraubt.Each wing 2 is connected directly to the spar nut 19. In this case, screws 21 are screwed by a foot 22 of the wing 2 in the cross nut 19.

Das beschriebene Konstruktionsprinzip der Holmlagerung basiert darauf, dass bei der Montage des Laufrades 1 der Holm 11 von innen in den Tragring 5 geschoben werden kann.The described design principle of the Holmlagerung based on the fact that during assembly of the impeller 1 of the spar 11 can be pushed from the inside into the support ring 5.

In Fig. 2.1 ist das Laufrad 1 ohne Holme 11 und Flügel 2 gezeigt. Hiervon ausgehend wird zunächst das Wälzlager 14 auf den Holm 11 geschoben und die Büchse 15 in den Aufsatz 13 des Tragringes 5 eingeklebt.In Fig. 2.1, the impeller 1 is shown without spars 11 and 2 wings. On this basis, first the roller bearing 14 is pushed onto the spar 11 and the sleeve 15 glued into the attachment 13 of the support ring 5.

Anschließend wird der Holm 11 mit dem Wälzlager 14 von innen in den Tragring 5 eingesetzt und mit einem Sicherungsring über einen Dichtungsdeckel gegen Herausfallen nach innen gesichert (Fig. 2.2).Subsequently, the spar 11 is inserted with the roller bearing 14 from the inside into the support ring 5 and secured with a retaining ring over a seal cover against falling inwards (Fig 2.2).

Von oben wird die Holmmutter 19 eingesetzt und direkt mit dem Holm 11 verschraubt (Fig. 2.3).The cross nut 19 is inserted from above and screwed directly to the spar 11 (FIG. 2.3).

Der Flügel 2 wird mittels Schrauben 21 mit der Holmmutter 19 verbunden (Fig. 2.4).The wing 2 is connected by means of screws 21 with the handle nut 19 (Figure 2.4).

Danach erfolgt die weitere Montage des Laufrades 1, indem die Hebel 10 mit den Holmen 11 verbunden und der Deckel 7 und die Verstelleinrichtung 9 an das Laufrad 1 angebaut werden (Fig. 2.5)Thereafter, the further assembly of the impeller 1 by the lever 10 is connected to the bars 11 and the cover 7 and the adjusting device 9 are attached to the impeller 1 (Fig. 2.5)

Claims (4)

Axialventilator mit einem Laufrad (1) und verstellbaren Flügeln (2), wobei das Laufrad (1) einen Tragring (5) aufweist, in dem mit den Flügeln (2) verbundene Holme (11) drehbar gelagert sind, dadurch gekennzeichnet, dass die Lagerung jedes Holmes (11) aus einem innen am Tragring (5) anliegenden Wälzlager (14) und einer außen am Aufsatz (13) anliegenden Büchse (15) besteht und dass der Holm (11) durch eine auf das äußere Ende des Holmes (11) geschraubte Holmmutter (19) in dem Tragring (5) fixiert ist.Axial fan with an impeller (1) and adjustable wings (2), wherein the impeller (1) has a support ring (5) in which with the wings (2) connected to spars (11) are rotatably mounted, characterized in that the storage each spar (11) consists of a bearing on the inside of the support ring (5) rolling bearing (14) and an outside of the attachment (13) adjacent sleeve (15) and that the spar (11) by a on the outer end of the spar (11) screwed Holmmutter (19) in the support ring (5) is fixed. Axialventilator nach Anspruch 1, dadurch gekennzeichnet, dass der Fuß (22) des Flügels (2) direkt an der Holmmutter (19) befestigt ist.Axial fan according to claim 1, characterized in that the foot (22) of the wing (2) is attached directly to the handle nut (19). Verfahren zur Montage der Flügel (2) des Axialventilators nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, dass nacheinander das Wälzlager (14) auf den Holm (11) geschoben wird, die Büchse (15) in dem Aufsatz (13) des Tragrings (5) befestigt wird, der Holm (11) mit dem aufgeschobenen Wälzlager (14) vom Inneren des Laufrades (1) her in den Tragring (5) eingesetzt wird und die Holmmutter (19) von außen mit dem Holm (11) verschraubt wird.A method for mounting the wings (2) of the axial fan according to claims 1 and 2, characterized in that successively the rolling bearing (14) is pushed onto the spar (11), the sleeve (15) in the attachment (13) of the support ring ( 5) is fixed, the spar (11) with the deferred roller bearing (14) from the interior of the impeller (1) forth in the support ring (5) is inserted and the cross nut (19) from the outside to the spar (11) is screwed. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass nach dem Verschrauben der Holmmutter (19) mit dem Holm (11) der Fuß (22) des Flügels (2) mittels Schrauben (21) mit der Holmmutter (19) verbunden wird.A method according to claim 1, characterized in that after screwing the cross nut (19) with the spar (11) of the foot (22) of the wing (2) by means of screws (21) with the cross nut (19) is connected.
EP06025183.2A 2005-12-15 2006-12-06 Axial fan with variable pitch blades and method for mounting the fan Active EP1798420B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06025183T PL1798420T3 (en) 2005-12-15 2006-12-06 Axial fan with variable pitch blades and method for mounting the fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005060433A DE102005060433A1 (en) 2005-12-15 2005-12-15 Axial fan with adjustable blades and method of mounting the blades

Publications (3)

Publication Number Publication Date
EP1798420A2 true EP1798420A2 (en) 2007-06-20
EP1798420A3 EP1798420A3 (en) 2008-12-31
EP1798420B1 EP1798420B1 (en) 2017-08-30

Family

ID=37888264

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06025183.2A Active EP1798420B1 (en) 2005-12-15 2006-12-06 Axial fan with variable pitch blades and method for mounting the fan

Country Status (9)

Country Link
US (1) US7682128B2 (en)
EP (1) EP1798420B1 (en)
KR (1) KR101270394B1 (en)
CN (1) CN1982728B (en)
DE (1) DE102005060433A1 (en)
DK (1) DK1798420T3 (en)
ES (1) ES2644420T3 (en)
PL (1) PL1798420T3 (en)
RU (1) RU2332590C1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8207625B1 (en) 2009-09-28 2012-06-26 Constantine Gus Cristo Electrical power generating arrangement
CN102606528B (en) * 2012-04-25 2014-04-09 山西渝煤科安运风机有限公司 Axial flow ventilator capable of synchronously adjusting blades
CN103047179B (en) * 2012-12-19 2016-04-20 平安电气股份有限公司 The outer Primary regulation device of axial-flow fan blade angle machine
US10934866B2 (en) 2017-06-20 2021-03-02 Rolls-Royce North American Technologies Inc. Variable pitch change control method
US10473111B2 (en) 2017-10-18 2019-11-12 Rolls-Royce Corporation Variable pitch fan for a gas turbine engine
CN112431792B (en) * 2020-11-23 2022-06-21 安徽朗迪叶轮机械有限公司 Quick connecting assembly for fan blade assembly

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4315080A1 (en) 1993-05-06 1994-11-10 Muehlbauer Luftfahrttechn Gmbh Blade mounting for propellers, rotors or fans

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2107785A (en) * 1934-08-23 1938-02-08 Gustav Schwarz G M B H Variable pitch propeller for aircraft
FR1189060A (en) * 1957-12-27 1959-09-29 Improvements to fans or propellers of all kinds
DE3214223C2 (en) * 1982-04-17 1985-05-02 Aktiengesellschaft Kühnle, Kopp & Kausch, 6710 Frankenthal Axial fan
DE3366618D1 (en) * 1983-10-14 1986-11-06 Howden James & Co Ltd Variable pitch axial flow fan
DE8815383U1 (en) * 1988-04-13 1989-02-09 J.M. Voith Gmbh, 7920 Heidenheim Axial fan
CA2483109C (en) * 2003-10-20 2012-05-01 Flexxaire Manufacturing Inc. Control system for variable pitch fan

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4315080A1 (en) 1993-05-06 1994-11-10 Muehlbauer Luftfahrttechn Gmbh Blade mounting for propellers, rotors or fans

Also Published As

Publication number Publication date
US7682128B2 (en) 2010-03-23
PL1798420T3 (en) 2018-02-28
CN1982728B (en) 2014-07-23
DK1798420T3 (en) 2017-12-11
DE102005060433A1 (en) 2007-06-21
ES2644420T3 (en) 2017-11-28
EP1798420B1 (en) 2017-08-30
KR20070064253A (en) 2007-06-20
US20070151385A1 (en) 2007-07-05
EP1798420A3 (en) 2008-12-31
CN1982728A (en) 2007-06-20
RU2332590C1 (en) 2008-08-27
KR101270394B1 (en) 2013-06-05

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