EP2045471A3 - Ventilator with a wheel and method for operating a ventilator - Google Patents

Ventilator with a wheel and method for operating a ventilator Download PDF

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Publication number
EP2045471A3
EP2045471A3 EP08014590A EP08014590A EP2045471A3 EP 2045471 A3 EP2045471 A3 EP 2045471A3 EP 08014590 A EP08014590 A EP 08014590A EP 08014590 A EP08014590 A EP 08014590A EP 2045471 A3 EP2045471 A3 EP 2045471A3
Authority
EP
European Patent Office
Prior art keywords
ventilator
fan
wheel
operating
relates
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
EP08014590A
Other languages
German (de)
French (fr)
Other versions
EP2045471A2 (en
EP2045471B1 (en
Inventor
Rolf-Herbert Dipl.-Ing. Fichter
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.)
LTG AG
Original Assignee
LTG 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 LTG AG filed Critical LTG AG
Publication of EP2045471A2 publication Critical patent/EP2045471A2/en
Publication of EP2045471A3 publication Critical patent/EP2045471A3/en
Application granted granted Critical
Publication of EP2045471B1 publication Critical patent/EP2045471B1/en
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
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
    • F04D29/283—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis rotors of the squirrel-cage type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
    • F04D17/04—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal of transverse-flow type
    • 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
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/051—Axial thrust balancing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/94—Functionality given by mechanical stress related aspects such as low cycle fatigue [LCF] of high cycle fatigue [HCF]
    • F05D2260/941—Functionality given by mechanical stress related aspects such as low cycle fatigue [LCF] of high cycle fatigue [HCF] particularly aimed at mechanical or thermal stress reduction

Landscapes

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

Abstract

Die Erfindung betrifft einen Ventilator, insbesondere Querstromventilator, mit einem Laufrad (12), das mittels einer Lagerung drehbar gelagert ist und das mindestens zwei Stützeinrichtungen (20,22) aufweist, die mehrere, sich zwischen ihnen erstreckende Lüfterschaufeln (36) halten. Es ist vorgesehen, dass der Ventilator eine Spanneinrichtung (72) zur axialen Zug- oder Druckbeaufschlagung der Lüfterschaufeln (36) aufweist.The invention relates to a fan, in particular cross-flow fan, with an impeller (12) which is rotatably supported by means of a bearing and which has at least two support means (20,22) holding a plurality of fan blades (36) extending therebetween. It is envisaged that the fan has a tensioning device (72) for the axial tension or pressurization of the fan blades (36).

Weiterhin betrifft die Erfindung ein entsprechendes Verfahren.

Figure imgaf001
Furthermore, the invention relates to a corresponding method.
Figure imgaf001
EP08014590.7A 2007-10-04 2008-08-16 Ventilator with a wheel and method for operating a ventilator Active EP2045471B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007047412A DE102007047412B4 (en) 2007-10-04 2007-10-04 Cross-flow fan with an impeller and method for operating a cross-flow fan

Publications (3)

Publication Number Publication Date
EP2045471A2 EP2045471A2 (en) 2009-04-08
EP2045471A3 true EP2045471A3 (en) 2010-04-28
EP2045471B1 EP2045471B1 (en) 2020-12-30

Family

ID=39864769

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08014590.7A Active EP2045471B1 (en) 2007-10-04 2008-08-16 Ventilator with a wheel and method for operating a ventilator

Country Status (2)

Country Link
EP (1) EP2045471B1 (en)
DE (1) DE102007047412B4 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1128475A (en) * 1906-09-08 1915-02-16 B F Sturtevant Co Blower.
US1378008A (en) * 1916-10-21 1921-05-17 Westinghouse Electric & Mfg Co Centrifugal fan
US1652285A (en) * 1926-01-07 1927-12-13 Francis J Mcmurdie Fan
US3130899A (en) * 1963-07-24 1964-04-28 Lau Blower Co Blower
US4235568A (en) * 1977-10-05 1980-11-25 Voith Getriebe Kg Fan rotor with tensioning means
US5870420A (en) * 1997-08-18 1999-02-09 Cymer, Inc. Cross-flow blower with braces

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2975961A (en) * 1958-07-23 1961-03-21 Steam O Matic Corp Blower unit
DE1428162A1 (en) * 1962-09-06 1969-03-20 Nikolaus Laing Storage for a cross-flow runner
DE3705114A1 (en) * 1987-02-18 1988-09-22 Audi Ag CAST IRON CAMSHAFT FOR INTERNAL COMBUSTION ENGINES
DE29823187U1 (en) 1998-12-29 1999-02-25 Ltg Holding Gmbh Cross flow fan
JP4788409B2 (en) * 2006-03-09 2011-10-05 ソニー株式会社 Cross current blower and electronic device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1128475A (en) * 1906-09-08 1915-02-16 B F Sturtevant Co Blower.
US1378008A (en) * 1916-10-21 1921-05-17 Westinghouse Electric & Mfg Co Centrifugal fan
US1652285A (en) * 1926-01-07 1927-12-13 Francis J Mcmurdie Fan
US3130899A (en) * 1963-07-24 1964-04-28 Lau Blower Co Blower
US4235568A (en) * 1977-10-05 1980-11-25 Voith Getriebe Kg Fan rotor with tensioning means
US5870420A (en) * 1997-08-18 1999-02-09 Cymer, Inc. Cross-flow blower with braces

Also Published As

Publication number Publication date
DE102007047412B4 (en) 2010-04-15
EP2045471A2 (en) 2009-04-08
DE102007047412A1 (en) 2009-04-09
EP2045471B1 (en) 2020-12-30

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