EP2811170A1 - Ventilateur radial - Google Patents

Ventilateur radial Download PDF

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Publication number
EP2811170A1
EP2811170A1 EP13290123.2A EP13290123A EP2811170A1 EP 2811170 A1 EP2811170 A1 EP 2811170A1 EP 13290123 A EP13290123 A EP 13290123A EP 2811170 A1 EP2811170 A1 EP 2811170A1
Authority
EP
European Patent Office
Prior art keywords
rotation
axis
range
segment
impeller
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Withdrawn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
EP13290123.2A
Other languages
German (de)
English (en)
Inventor
Dieter Sartorius
Jörg KILIAN
Céline Fuentes
Jörg MARQUARDT
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.)
Mahle Behr GmbH and Co KG
Mahle Behr France Rouffach SAS
Original Assignee
Behr GmbH and Co KG
Behr France Rouffach SAS
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 Behr GmbH and Co KG, Behr France Rouffach SAS filed Critical Behr GmbH and Co KG
Priority to EP13290123.2A priority Critical patent/EP2811170A1/fr
Priority to PCT/EP2014/061631 priority patent/WO2014195375A2/fr
Publication of EP2811170A1 publication Critical patent/EP2811170A1/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Withdrawn legal-status Critical Current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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F04D29/4233—Fan casings with volutes extending mainly in axial or radially inward direction
    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence

Definitions

  • the invention relates to a radial fan according to the preamble of claim 1.
  • centrifugal fans with axial inflow and radial outflow usually spiral housing are provided, which serve the speed delay, the air duct and the air deflection.
  • a radial fan housing is known in which the housing has a first wall portion with non-linear extension, in particular in the form of a logarithmic extension, and a second wall portion with linear extension.
  • the DE 32 38 913 C2 discloses a housing which expands in a first region corresponding to a logarithmic spiral, extends in a second region equidistant from the impeller, and in a third region spirally expands again to the air outlet.
  • the radial fan described in more detail below is also known.
  • a so-called oblique tongue frame side, a vertical oblique tongue on the motor side and a Zargenring provided.
  • Such conventional radial fans usually have impeller outer diameters Da from 50 mm to 205 mm and fan widths from 24 mm to 150 mm
  • the housing can be easily adapted to slightly different space conditions, costs for the development of the housing and thus the radial fan can be reduced.
  • the known fan is scaled down with a scaling factor and used as the basis for the dimensioning of a blower according to the invention, as described in the claims.
  • Particularly preferred at a scaling factor of 0.85 are impellers having an impeller outer diameter of 0.9 of the base impeller outer diameter.
  • a radial fan 1 according to a first embodiment will be described in detail with reference to the drawing.
  • This is a radial fan, which was designed on the basis of a known radial fan, with references to this known radial fan as "base” is received.
  • a scaling factor SF basis of 0.85 and a basic impeller outer diameter 140 mm, ie r LRBasis 70 mm, are provided, the base radial fan being designed in a previously described manner known by use.
  • the inventive radial fan 1 which in this case part of a Kraft mecanical devise (not shown) with a number of the air supply and discharge air ducts, has a rotatable about a rotation axis 2, driven by an electric motor, not shown impeller 3 in one Housing 4 on.
  • impeller 3 which has an impeller outer diameter (2 ⁇ r LR ) of 126 mm, and arranged in the radial direction of the rotation axis 2 wall of the housing 4, a channel 5 is formed, the inner boundary of the outer periphery of the impeller 3 and the outer Border forms the wall of the housing 4.
  • the housing 4 has an inlet opening, which is presently formed by a circular, concentric with the impeller 3 formed opening, and an outlet opening, which at the channel end with substantially rectangular cross-section is formed.
  • the rotation axis 2 defines a polar coordinate system. The course of the wall of the housing 4 about the axis of rotation 2 results over an angular range of 0 ° to 289 ° as a function r ( ⁇ ), which will be described in more detail below.
  • the channel 5 begins at its narrowest point, at which a tongue 6 of the housing 4 is formed, which separates the beginning of the channel from the channel end within the curved region of the housing 4.
  • the distance of the impeller 3 to the tongue 6 is referred to below as the tongue spacing za, this corresponds to the channel width at the beginning of the channel (measured in the radial direction with respect to the axis of rotation 2 of the impeller 3).
  • the expansion angle ⁇ in the present case is 2.2 °.
  • This extension angle and the resulting increased tongue pitch compared to the scaled base spiral allow wheels with larger impeller outer diameters to be installed.
  • the initial angle of an angular range with the end index "0" and the end angle with the end index "E” are indicated.
  • a first part of this non-linear spiral segment S can be replaced by two circular arc segments in an angle range ⁇ of at most 35 °, the center points of the circle usually not coinciding with the axis of rotation.
  • SF base 0.85
  • r LR base 70 mm
  • ⁇ BS1E 217.783 °.
  • the outlet in the form of an outlet opening 7 is provided from the housing 4, wherein the outlet opens in the tangential direction into a corresponding air channel. Due to the rounded configuration of the tongue 6 and the tongue spacing za> 0 mm, a bifurcation of the channel 5 is provided in the tongue area.
  • the extension angle ⁇ 2.2 °.
  • smaller extension angles ⁇ are also possible for larger impeller outer diameters.
  • the extension angles ⁇ are generally in the range of 0.8 ° to 4.07 °. Specifically, for an impeller scaling factor (ratio of impeller outer diameter to impeller base diameter) of 0.9, the expansion angle is 4.07 ° maximum, for an impeller scaling factor of 0.95, the extension angle is 3.2 ° or less and the impeller scale factor is 1.0 ° Extension angle is maximum 2.4 °.
  • the critical angle ⁇ SE in which the radius widens in a non-linear spiral segment is as described above Embodiment 70 °, but it may generally in the range of 70 ° to 200 °, in particular in the range 70 ° to 190 °, lie.
  • the end angle ⁇ BS1E is in the range of 215 ° to 222 °, in particular it is about 219 °.
  • the width of the fan is not described in detail above, but it can also be designed based on the width of the base fan, in particular be increased in order to compensate for the reduced spiral volume at an enlargement of the impeller outer diameter.
  • the width applies to the scaled base width, ie the width of the scaled base fan 1 . 0 ⁇ B / SF Base ⁇ B Base ⁇ 1 . 5
  • Preferred width enlargement factors B / SF Basis ⁇ B Basis range from 1.2 to 1.35.
  • the spiral width can be constant over its course, increase linearly or not linearly.
EP13290123.2A 2013-06-04 2013-06-04 Ventilateur radial Withdrawn EP2811170A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP13290123.2A EP2811170A1 (fr) 2013-06-04 2013-06-04 Ventilateur radial
PCT/EP2014/061631 WO2014195375A2 (fr) 2013-06-04 2014-06-04 Ventilateur radial

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13290123.2A EP2811170A1 (fr) 2013-06-04 2013-06-04 Ventilateur radial

Publications (1)

Publication Number Publication Date
EP2811170A1 true EP2811170A1 (fr) 2014-12-10

Family

ID=48699697

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13290123.2A Withdrawn EP2811170A1 (fr) 2013-06-04 2013-06-04 Ventilateur radial

Country Status (2)

Country Link
EP (1) EP2811170A1 (fr)
WO (1) WO2014195375A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3073909A1 (fr) * 2017-11-20 2019-05-24 Valeo Systemes Thermiques Volute pour groupe moto-ventilateur

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170342992A1 (en) * 2016-05-24 2017-11-30 Regal Beloit America, Inc. Low Noise High Efficiency Centrifugal Blower

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3846040A (en) * 1972-06-16 1974-11-05 D Dennis Blower housing
DE3238913C2 (de) 1982-10-21 1985-10-03 Werner Dr. 8972 Sonthofen Röhrs Radialventilatorgehäuse
US6273679B1 (en) * 1999-07-28 2001-08-14 Samsung Electronics Co., Ltd. Centrifugal blower
US6439839B1 (en) 1999-08-10 2002-08-27 Lg Electronics Inc. Blower
US20050096767A1 (en) * 2003-11-04 2005-05-05 Yuqi Chen Method for designing a blower wheel scroll cage
US20100014965A1 (en) * 2008-07-18 2010-01-21 Denso Corporation Centrifugal type blower
DE102009033776A1 (de) 2009-07-17 2011-01-20 Behr Gmbh & Co. Kg Radiallüftergehäuse
US20110217188A1 (en) * 2007-06-14 2011-09-08 Rbc Horizon, Inc. Extended Length Cutoff Blower

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1503649A1 (de) * 1965-12-18 1969-02-06 Meissen Turbowerke Lueftertypenreihen nach dem Baukastensystem
US5156524A (en) * 1990-10-26 1992-10-20 Airflow Research And Manufacturing Corporation Centrifugal fan with accumulating volute
JP2008267242A (ja) * 2007-04-19 2008-11-06 Matsushita Electric Ind Co Ltd 送風機
JP5029178B2 (ja) * 2007-07-06 2012-09-19 株式会社デンソー 遠心式送風機
JP2009013923A (ja) * 2007-07-06 2009-01-22 Denso Corp 遠心式送風機

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3846040A (en) * 1972-06-16 1974-11-05 D Dennis Blower housing
DE3238913C2 (de) 1982-10-21 1985-10-03 Werner Dr. 8972 Sonthofen Röhrs Radialventilatorgehäuse
US6273679B1 (en) * 1999-07-28 2001-08-14 Samsung Electronics Co., Ltd. Centrifugal blower
US6439839B1 (en) 1999-08-10 2002-08-27 Lg Electronics Inc. Blower
US20050096767A1 (en) * 2003-11-04 2005-05-05 Yuqi Chen Method for designing a blower wheel scroll cage
US20110217188A1 (en) * 2007-06-14 2011-09-08 Rbc Horizon, Inc. Extended Length Cutoff Blower
US20100014965A1 (en) * 2008-07-18 2010-01-21 Denso Corporation Centrifugal type blower
DE102009033776A1 (de) 2009-07-17 2011-01-20 Behr Gmbh & Co. Kg Radiallüftergehäuse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3073909A1 (fr) * 2017-11-20 2019-05-24 Valeo Systemes Thermiques Volute pour groupe moto-ventilateur

Also Published As

Publication number Publication date
WO2014195375A2 (fr) 2014-12-11
WO2014195375A3 (fr) 2015-06-11

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