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EP0741246A1 - Soufflante radial - Google Patents

Soufflante radial Download PDF

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Publication number
EP0741246A1
EP0741246A1 EP96106285A EP96106285A EP0741246A1 EP 0741246 A1 EP0741246 A1 EP 0741246A1 EP 96106285 A EP96106285 A EP 96106285A EP 96106285 A EP96106285 A EP 96106285A EP 0741246 A1 EP0741246 A1 EP 0741246A1
Authority
EP
European Patent Office
Prior art keywords
impeller
blades
radial
radial fan
curved
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.)
Withdrawn
Application number
EP96106285A
Other languages
German (de)
English (en)
Inventor
Reinhold Hopfensperger
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.)
Motoren Ventilatoren Landshut GmbH
Original Assignee
Alcatel SEL 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 Alcatel SEL AG filed Critical Alcatel SEL AG
Priority to DE29623773U priority Critical patent/DE29623773U1/de
Publication of EP0741246A1 publication Critical patent/EP0741246A1/fr
Withdrawn legal-status Critical Current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
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/30—Vanes
    • 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

Definitions

  • the invention relates to a radial fan with a housing with a spiral inner contour and a closed impeller with curved blades, in which the diameter of the impeller is very much larger than its flow outlet width.
  • a radial fan is known (EP-A-0410271).
  • the known radial fan is intended for conveying a gaseous medium in a device with a high flow resistance, in which the conveyed medium has to overcome a relatively high back pressure and which itself has a steep pressure-volume characteristic curve, i. H. major changes in the pressure generated only lead to minor changes in the volume flow.
  • the blades of the impeller are curved backwards.
  • a known radial fan whose impeller has a diameter of 130 mm and is operated at a speed of about 3800 revolutions per minute, delivers a volume flow of 6.9 l / s at a pressure of the conveyed medium of 415 Pascals.
  • the technical problem on which the invention is based is to create, starting from the known radial fan, a radial fan which has a higher specific air output without generating greater noise or which has a substantially higher air output with the same noise generation as the known radial fan.
  • This higher specific air output is of great importance at a finite available drive speed (e.g. with an inexpensive asynchronous shaded-pole motor).
  • This technical problem is solved according to the invention in that the blades are curved backwards in the inflow region of the impeller and are designed to end radially in the outflow region.
  • Such a radial fan has a low noise level at the same pressure and the same volume flow compared to the known radial fan.
  • the closed impeller consists of the lower part 1 with the blades 2 and the lid 3, for example integrally attached to it.
  • the length of the blade 2 is longer at the lower end, ie on the lower part 1 than at the upper end, ie near the lid 3.
  • the impeller can be made of metal or plastic.
  • the curvature of the blade 2 can be seen from FIG.
  • the direction of rotation of the impeller is illustrated by arrow 4.
  • the blades 2 - starting from their inner end in the inflow region 5 - are curved backwards about half their length.
  • the curvature of the blade 2 then changes and its end runs radially in the outflow region 6.
  • the measured sound pressure level L (A) is recorded by a radial fan at several operating points, namely by a radial fan which was equipped with differently designed fan wheels.
  • the blades were curved backwards over their entire length.
  • the weighted sound pressure levels, which are denoted by b, were measured on a radial fan with such an impeller.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP96106285A 1995-05-05 1996-04-22 Soufflante radial Withdrawn EP0741246A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29623773U DE29623773U1 (de) 1995-05-05 1996-04-22 Radialgebläse

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19516515 1995-05-05
DE1995116515 DE19516515A1 (de) 1995-05-05 1995-05-05 Radialgebläse

Publications (1)

Publication Number Publication Date
EP0741246A1 true EP0741246A1 (fr) 1996-11-06

Family

ID=7761160

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96106285A Withdrawn EP0741246A1 (fr) 1995-05-05 1996-04-22 Soufflante radial

Country Status (2)

Country Link
EP (1) EP0741246A1 (fr)
DE (1) DE19516515A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2344778A (en) * 1998-12-18 2000-06-21 Notetry Ltd Cyclonic separator and fan combination
GB2354066A (en) * 1999-09-07 2001-03-14 Lucent Technologies Inc Cabinet for units which dissipate heat
EP1462658A3 (fr) * 2003-03-24 2005-12-14 ebm-papst Landshut GmbH Ventilateur radial
FR2946399A1 (fr) * 2009-06-05 2010-12-10 Turbomeca Rouet centrifuge de compresseur.
CN102345635A (zh) * 2010-08-03 2012-02-08 沈阳鼓风机研究所(有限公司) 循环流化床锅炉节能风机系列模型
CN102345632A (zh) * 2010-08-03 2012-02-08 沈阳鼓风机研究所(有限公司) 锅炉鼓引节能风机系列模型
CN102345636A (zh) * 2010-08-03 2012-02-08 沈阳鼓风机研究所(有限公司) 循环流化床锅炉节能风机系列模型
CN102345633A (zh) * 2010-08-03 2012-02-08 沈阳鼓风机研究所(有限公司) 循环流化床锅炉节能风机系列模型
CN102345634A (zh) * 2010-08-03 2012-02-08 沈阳鼓风机研究所(有限公司) 锅炉鼓引节能风机系列模型
CN103062112A (zh) * 2013-01-10 2013-04-24 中联重科股份有限公司 道路清洁设备及其离心风机叶轮
CN103291654A (zh) * 2013-06-25 2013-09-11 济南风机厂有限责任公司 一种高效节能风机系列模型
EP3707385A1 (fr) * 2017-11-07 2020-09-16 MTD Products Inc Roue de soufflante pour une soufflante portative

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH616728A5 (en) * 1975-07-31 1980-04-15 Le Polt I Im M I Kalinina Radial-flow compressor.
EP0410271A2 (fr) * 1989-07-22 1991-01-30 Alcatel SEL Aktiengesellschaft Dispositif de transport de milieu gazeux

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973872A (en) * 1975-08-01 1976-08-10 Konstantin Pavlovich Seleznev Centrifugal compressor
EP0516073A1 (fr) * 1991-05-29 1992-12-02 Alcatel SEL Aktiengesellschaft Dispositif de transport d'un médium gazeux

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH616728A5 (en) * 1975-07-31 1980-04-15 Le Polt I Im M I Kalinina Radial-flow compressor.
EP0410271A2 (fr) * 1989-07-22 1991-01-30 Alcatel SEL Aktiengesellschaft Dispositif de transport de milieu gazeux

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2344778A (en) * 1998-12-18 2000-06-21 Notetry Ltd Cyclonic separator and fan combination
GB2354066A (en) * 1999-09-07 2001-03-14 Lucent Technologies Inc Cabinet for units which dissipate heat
GB2354066B (en) * 1999-09-07 2001-07-18 Lucent Technologies Inc Cabinet for units which dissipate heat
EP1462658A3 (fr) * 2003-03-24 2005-12-14 ebm-papst Landshut GmbH Ventilateur radial
FR2946399A1 (fr) * 2009-06-05 2010-12-10 Turbomeca Rouet centrifuge de compresseur.
CN102345633A (zh) * 2010-08-03 2012-02-08 沈阳鼓风机研究所(有限公司) 循环流化床锅炉节能风机系列模型
CN102345636B (zh) * 2010-08-03 2014-04-02 沈阳鼓风机研究所(有限公司) 循环流化床锅炉节能风机系列模型
CN102345636A (zh) * 2010-08-03 2012-02-08 沈阳鼓风机研究所(有限公司) 循环流化床锅炉节能风机系列模型
CN102345635A (zh) * 2010-08-03 2012-02-08 沈阳鼓风机研究所(有限公司) 循环流化床锅炉节能风机系列模型
CN102345634A (zh) * 2010-08-03 2012-02-08 沈阳鼓风机研究所(有限公司) 锅炉鼓引节能风机系列模型
CN102345633B (zh) * 2010-08-03 2014-04-02 沈阳鼓风机研究所(有限公司) 循环流化床锅炉节能风机系列模型
CN102345635B (zh) * 2010-08-03 2014-04-02 沈阳鼓风机研究所(有限公司) 循环流化床锅炉节能风机系列模型
CN102345632A (zh) * 2010-08-03 2012-02-08 沈阳鼓风机研究所(有限公司) 锅炉鼓引节能风机系列模型
CN102345634B (zh) * 2010-08-03 2014-04-02 沈阳鼓风机研究所(有限公司) 锅炉鼓引节能风机系列模型
CN102345632B (zh) * 2010-08-03 2014-04-02 沈阳鼓风机研究所(有限公司) 锅炉鼓引节能风机系列模型
CN103062112A (zh) * 2013-01-10 2013-04-24 中联重科股份有限公司 道路清洁设备及其离心风机叶轮
CN103062112B (zh) * 2013-01-10 2016-07-20 中联重科股份有限公司 道路清洁设备及其离心风机叶轮
CN103291654A (zh) * 2013-06-25 2013-09-11 济南风机厂有限责任公司 一种高效节能风机系列模型
EP3707385A1 (fr) * 2017-11-07 2020-09-16 MTD Products Inc Roue de soufflante pour une soufflante portative

Also Published As

Publication number Publication date
DE19516515A1 (de) 1996-11-07

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Designated state(s): DE FR GB IT NL

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Effective date: 19961120

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MOTOREN VENTILATOREN LANDSHUT GMBH

17Q First examination report despatched

Effective date: 19990211

STAA Information on the status of an ep patent application or granted ep patent

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Effective date: 19990622