EP1106837A1 - Lüftergehäuse - Google Patents

Lüftergehäuse Download PDF

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Publication number
EP1106837A1
EP1106837A1 EP00126610A EP00126610A EP1106837A1 EP 1106837 A1 EP1106837 A1 EP 1106837A1 EP 00126610 A EP00126610 A EP 00126610A EP 00126610 A EP00126610 A EP 00126610A EP 1106837 A1 EP1106837 A1 EP 1106837A1
Authority
EP
European Patent Office
Prior art keywords
volute
installation according
blower
angle
evolution
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
EP00126610A
Other languages
English (en)
French (fr)
Other versions
EP1106837B1 (de
Inventor
Jihad El Mayas
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.)
Valeo Systemes Thermiques SAS
Original Assignee
Valeo Climatisation SA
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 Valeo Climatisation SA filed Critical Valeo Climatisation SA
Publication of EP1106837A1 publication Critical patent/EP1106837A1/de
Application granted granted Critical
Publication of EP1106837B1 publication Critical patent/EP1106837B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • the subject of the present invention is a heating and / or air conditioning system comprising at least one centrifugal blower comprising at least minus an annular turbine provided with fins, which is rotated around an axis of rotation by a motor, this annular turbine being surrounded by a volute defining an air transmission space leaving, by centrifugal effect, from the periphery of the annular turbine, to direct it towards a region of output of the blower.
  • Such a kicker presenting an evolution radial forming a spiral is for example described in Japanese Patent Application JP-9-242 696 (DENSO Corp. Ltd) filed on March 11, 1996 and published on September 16, 1997.
  • JP-9-158 898 (DENSO Corp. Ltd) filed on December 5, 1995 and published on June 17, 1997 describes a pulsator which associates a radial evolution of the aforementioned type to an evolution axial according to the same angle so as to define a crown-shaped sector whose height taken parallel to the axis of the blower varies significantly linearly as a function of the angle.
  • This sector in shape crown has an inclined inner wall reducing the noise generated in the sector thus created.
  • Such a pulser has performance optimized, but it occupies a large space, which will contrary to the current requirements of the manufacturers of reduce the space occupied by the components.
  • the value of the coefficient Io of evolution exponential is, in some pulsers, lowered to values ensuring a compromise between the radial dimension and performance.
  • the subject of the present invention is a pulser with reduced radial dimensions, while maintaining satisfactory performance.
  • the invention makes it possible to obtain particularly remarkable results, in particular with r O / H ' O ⁇ 1.
  • the blower represented in FIGS. 1a and 1b has a turbine 1 in the form of an annular crown, provided with blades 2 and surrounded by a volute 3 whose external wall 6 has a radial evolution forming a spiral which widens towards the outlet 14 of the blower .
  • This radial development is accompanied by an axial development to define an annular corridor of progressively increasing height in the direction of the outlet 14 and which is delimited on the inside by an internal wall 10 which forms an angle ⁇ 2 (increasing or not) with a plane normal to the axis of the blower, this angle corresponding substantially to the angle ⁇ f of ejection of the air flow outside the turbine 1.
  • the device according to the invention illustrated by Figures 2a, 2b, 3a and 3b shows a motor 28 of which the axis 30 drives an annular turbine 25 provided with blades 26 and which is surrounded by a volute 20 delimited at its upper part by a crown region 21, at its lower part by a bottom 22, as well as by a wall 35 which defines an annular passage 36 having a radial evolution as a function of the angle ⁇ and finally a wall 23 located substantially in the extension of the rim 34 of turbine 25, and which defines together with an extension 35 'of the wall 35, a annular passage 38 having an axial evolution corresponding to an increasing height towards exit 40 of the kicker.
  • the spiral formed by the wall 35 has a radial expansion as a function of the angle ⁇ (taken in a plane perpendicular to the axis of rotation of the turbine 25 ).
  • ⁇ 0 ° corresponds to the start of the radial expansion, in the vicinity of the edge 43 of the outlet 40, and ⁇ M corresponds to the end of the radial expansion, in the vicinity of the edge 44 of the outlet 40.
  • the volute 20 also has a axial expansion, defining an annular passage 28 extending towards the motor 28 the corridor annular 36.
  • the annular passage 38 is delimited by the extension 35 ′ of the spiral wall 35, the bottom 22, and the wall 23.
  • the fins 26 have at their end located on the side of the air inlet 50 a concave bevel 27 of height h b which runs along a corresponding curved region 24 forming part of an upper housing of the volute 20. If the height of the blade 26 is designated, it is advantageous that h b / h p ⁇ 0.1. This makes it possible to improve the aerodynamic performance of the blower (by approximately 10 to 15%) and to reduce the noise generated by it (by approximately 2 to 3 dBA).
  • the ends 27 and 27 ′ of the blades 26 are interconnected by strips 22 and 32 which occupy part of the width of the blades 26, without cover, so as to allow axial demoulding of the assembly constituted by the blades 26, the strips 12 and 32 and the conical bowl 29 secured to the strip 32 and which comes to engage on axis 30.
  • the strip upper 37 is arranged on the longitudinal face outer of the blades 26 and the lower strip 39 secured of bowl 29 occupies most or all of the 27 ′ end, which also makes it possible to demold all.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP20000126610 1999-12-06 2000-12-04 Lüftergehäuse Expired - Lifetime EP1106837B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9915344A FR2801941B1 (fr) 1999-12-06 1999-12-06 Installation de chauffage-climatisation comprenant au moins un pulseur centrifuge
FR9915344 1999-12-06

Publications (2)

Publication Number Publication Date
EP1106837A1 true EP1106837A1 (de) 2001-06-13
EP1106837B1 EP1106837B1 (de) 2006-04-19

Family

ID=9552922

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000126610 Expired - Lifetime EP1106837B1 (de) 1999-12-06 2000-12-04 Lüftergehäuse

Country Status (4)

Country Link
EP (1) EP1106837B1 (de)
DE (1) DE60027393T2 (de)
ES (1) ES2262481T3 (de)
FR (1) FR2801941B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2381110A2 (de) 2010-04-22 2011-10-26 Behr GmbH & Co. KG Kraftfahrzeugklimaanlage
DE102010028067A1 (de) 2010-04-22 2011-10-27 Behr Gmbh & Co. Kg Kraftfahrzeugklimaanlage
EP2634434A4 (de) * 2010-10-25 2017-11-15 Mitsubishi Heavy Industries, Ltd. Zentrifugallüfter mit mehreren blättern und klimaanlage damit

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2868813B1 (fr) * 2004-04-09 2006-06-16 Valeo Climatisation Sa Organe de propulsion centrifuge d'air pour installation de chauffage, de ventilation et/ou de climatisation d'un habitacle de vehicule notamment
US9568017B2 (en) 2014-04-30 2017-02-14 Denso International America, Inc. Quieter centrifugal blower with suppressed BPF tone
CN117663253A (zh) 2022-08-23 2024-03-08 广东美的暖通设备有限公司 风机及空调

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2057567A (en) * 1979-08-24 1981-04-01 Borg Warner Expanding scroll diffuser for radial flow impeller
DE4331606C1 (de) * 1993-09-17 1994-10-06 Gutehoffnungshuette Man Spiralgehäuse für Turbomaschinen
JPH09158898A (ja) 1995-12-05 1997-06-17 Denso Corp 遠心送風機
JPH09242696A (ja) 1996-03-11 1997-09-16 Denso Corp 遠心送風機
EP0846868A2 (de) * 1996-12-05 1998-06-10 General Motors Corporation Kreiselgebläseeinheit

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2057567A (en) * 1979-08-24 1981-04-01 Borg Warner Expanding scroll diffuser for radial flow impeller
DE4331606C1 (de) * 1993-09-17 1994-10-06 Gutehoffnungshuette Man Spiralgehäuse für Turbomaschinen
JPH09158898A (ja) 1995-12-05 1997-06-17 Denso Corp 遠心送風機
US5839879A (en) * 1995-12-05 1998-11-24 Denso Corporation Centrifugal blower
JPH09242696A (ja) 1996-03-11 1997-09-16 Denso Corp 遠心送風機
US5813831A (en) * 1996-03-11 1998-09-29 Denso Corporation Centrifugal blower having a bell-mouth ring for reducing noise
EP0846868A2 (de) * 1996-12-05 1998-06-10 General Motors Corporation Kreiselgebläseeinheit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2381110A2 (de) 2010-04-22 2011-10-26 Behr GmbH & Co. KG Kraftfahrzeugklimaanlage
DE102010028067A1 (de) 2010-04-22 2011-10-27 Behr Gmbh & Co. Kg Kraftfahrzeugklimaanlage
EP2634434A4 (de) * 2010-10-25 2017-11-15 Mitsubishi Heavy Industries, Ltd. Zentrifugallüfter mit mehreren blättern und klimaanlage damit

Also Published As

Publication number Publication date
ES2262481T3 (es) 2006-12-01
EP1106837B1 (de) 2006-04-19
FR2801941A1 (fr) 2001-06-08
DE60027393D1 (de) 2006-05-24
DE60027393T2 (de) 2007-05-10
FR2801941B1 (fr) 2002-02-08

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