EP2473744B1 - Boîtier de ventilateur radial - Google Patents

Boîtier de ventilateur radial Download PDF

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Publication number
EP2473744B1
EP2473744B1 EP10740627.4A EP10740627A EP2473744B1 EP 2473744 B1 EP2473744 B1 EP 2473744B1 EP 10740627 A EP10740627 A EP 10740627A EP 2473744 B1 EP2473744 B1 EP 2473744B1
Authority
EP
European Patent Office
Prior art keywords
radial fan
wall
boundary wall
radial
receiving space
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.)
Not-in-force
Application number
EP10740627.4A
Other languages
German (de)
English (en)
Other versions
EP2473744A1 (fr
Inventor
Matthias Lang
Dieter Sartorius
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
Original Assignee
Mahle Behr GmbH and Co KG
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 Mahle Behr GmbH and Co KG filed Critical Mahle Behr GmbH and Co KG
Publication of EP2473744A1 publication Critical patent/EP2473744A1/fr
Application granted granted Critical
Publication of EP2473744B1 publication Critical patent/EP2473744B1/fr
Not-in-force 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/462—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps
    • F04D29/464—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps adjusting flow cross-section, otherwise than by using adjustable stator blades
    • 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
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/52—Outlet

Definitions

  • the invention relates to a Radialborderergepatuspvoriques for ventilation devices as defined in the preamble of claim 1 such devices are for example from the publications EP 0433939 . DE 1975808 ; CH 319466 . GB 26130 and DE 2 437 804 known.
  • the invention relates to a blower device, in particular a blower device for a motor vehicle. Furthermore, the invention relates to an air conditioner, in particular an automotive air conditioning system.
  • the fans or blowers must have different characteristics. While, for example, in a first application (such as in a radiator of a motor vehicle) primarily depends on a high air flow rate (and thus on a high cooling capacity), in other applications, for example, a particularly low operating noise (for example in the ventilation of a motor vehicle interior) in the foreground ,
  • radial fans For ventilation of interiors, in particular of motor vehicle interiors, in particular radial fans have proven themselves. Basically, such radial fans satisfy the tasks assigned to them satisfactorily.
  • centrifugal fans A particular problem with currently known centrifugal fans is in particular when they are to be used in greatly varying operating conditions, which is often the case, for example, in the motor vehicle sector.
  • disadvantages such as a poorer efficiency, an unnecessary high noise and the like
  • the object of the invention is thus to propose a radial fan housing device, which is particularly universally applicable.
  • the object of the invention is to propose a blower device and an air conditioner, which is particularly universally applicable.
  • the object of the invention is also to provide a method for Operation of a radial fan assembly to propose, which allows a particularly universal operation of a radial fan assembly.
  • a radial fan housing device for ventilation devices is proposed according to claim 1.
  • it may be a radial fan housing device for ventilation devices for motor vehicles.
  • the adjustability of the adjustable boundary wall relates in particular to a reversible adjustability. That is, the adjustability does not necessarily relate to an initial adjustment of the tongue device at the time of mounting the radial fan housing device or the complete radial fan assembly, respectively. Rather, it is possible to make the adjustment of the adjustable boundary wall at later times. Specifically, it makes sense if the adaptability is not only possible, for example, in a workshop and / or by trained personnel, but on the contrary by the user of the device (for example, a motor vehicle driver) can be performed, or even automatically done the adjustment.
  • the adjustability of the at least one adjustable boundary wall can relate in particular to its setting angle in relation to the air flow, the air flow cross section, its thickness, its position, its shape, etc.
  • the adjustable boundary wall can be any section of any boundary wall of the radial fan receiving space.
  • the at least one adjustable boundary wall limits the radial fan receiving space at least partially in the axial and / or radial direction.
  • these may be wall areas which lie in the area of the actual housing spiral.
  • wall regions which form a transition region to an air outlet channel, can be designed as an adjustable boundary wall.
  • the at least one adjustable boundary wall is formed at least partially as a pivotable about a rotation wall means.
  • the corresponding wall device may for example be mounted in the manner of a hinge and pivoted by a corresponding movement. It is advantageous in particular if the pivotable wall device is designed as a rigid wall element, since this may possibly reduce the manufacturing costs.
  • a small force at a large displacement or a large force at a small displacement (or intermediate positions) can be used to adjust the adjustable boundary wall.
  • a transition region is provided in the region of the axis of rotation, which consists for example of an elastic material. This makes it possible to make the transitions "which", thereby avoiding unnecessary air turbulence, which could possibly lead to increased operating noise.
  • At least one adjustable boundary edge is at least partially designed as a displaceable wall device, in particular as a wall device which can be displaced at least partially along a surface normal.
  • a displaceable wall device in particular as a wall device which can be displaced at least partially along a surface normal.
  • At least one adjustable boundary wall is formed at least as elastic wall means.
  • the control of the adjustable boundary wall may prove to be particularly easy, since under certain circumstances "self-forming" properties of the elastic material can be exploited.
  • At least one first wall region of the radial fan receiving space is rigid and at least one second wall region of the radial fan receiving space is designed as an adjustable boundary wall. It has been found that it is generally possible to be able to achieve the majority of the possible noise reduction and / or efficiency increase of the radial fan arrangement when only a relatively small proportion of the entire wall area of the radial fan receiving space is designed as an adjustable boundary wall (adjustable boundary walls) , If only a few (or only a single) boundary walls are provided, which moreover also have an optionally only small surface area, the number and size of the moving parts can be significantly reduced. As a result, the overall arrangement can be cheaper and, if necessary, also more durable. In addition, if necessary, the actuators and / or actuators can be made smaller and / or simpler, which can reduce the cost of the overall arrangement and increase the reliability of the overall arrangement again.
  • the radial fan housing device has at least one actuator and / or at least one coupling element for an actuator.
  • an actuator or coupling element for an actuator the forces required for the movement of the adjustable boundary walls can be generated or introduced into the radial fan arrangement.
  • the actuators need not necessarily be electrical, pneumatic, magnetic or other actuators. Rather, it can also be mechanical actuators or coupling elements such as cables, turnstiles, coupling rods, control knobs, operating lever and the like.
  • blower device in particular a blower device for a motor vehicle with at least one radial fan housing device having the structure described above.
  • the corresponding fan device then has the advantages and properties already described in an analogous manner.
  • an air conditioning system in particular an automotive air conditioning system, with at least one radial fan housing device and / or with at least one fan device having the structure described above.
  • the air conditioning system then has the advantages and properties already described in an analogous manner.
  • the method such that the change at least partially and / or at least temporarily depending on the operating conditions of the radial fan assembly, in particular depending on the air flow, the speed of the centrifugal fan, the performance of the radial fan; from the acoustics in the air conditioner and / or in the vehicle and / or from the air back pressure.
  • Fig. 1 is a first embodiment of a radial fan 1 shown in a schematic plan view from above.
  • the radial fan has a radial fan housing 2, which forms an interior 3, in which a radial fan 4 is arranged.
  • the radial fan 1 by means of a centrifugal fan 4 to be conveyed air is perpendicular to the plane of the Fig. 1 sucked from the front via a so-called fan cowl (not shown here) in the interior of the radial fan 4.
  • the radial fan 4 has a plurality of fan blades that convey the air radially outward into an air duct 5 defined by the clearance between the outside of the radial fan 4 and the radial boundary walls 6 of the radial fan housing 2.
  • the air delivered by the radial fan 4 finally leaves the radial fan housing 2 via an air outlet channel 7.
  • the air outlet channel 7 lies in a region between a so-called radial fan blade 8 and an opposite channel wall 9.
  • the radial fan 4 promotes air into the channel 5 over its entire radial circumference, the air mass flow passing through the channel 5, starting from the radial fan tongue 8, steadily increases along the air channel 5.
  • the air flow velocity in the air duct 5 remains approximately constant and in particular does not take on excessively large values, the air duct is provided with a steadily increasing air passage cross-section.
  • the radial boundary wall 6 of a radial fan 1 in the form of a logarithmic spiral or an Archimedean spiral (linear spiral) is formed.
  • the air duct 5 is usually optimized for maximum air flow capacity of the radial fan 1.
  • this requires that at lower flow rates of the air duct 5 of the spiral is geometrically oversized.
  • the design of the radial fan housing 2 is accordingly too large and usually noise, especially low-frequency noise, which are perceived as particularly disturbing.
  • a first wall portion 10 is - as is common practice - designed as a rigid wall.
  • the radial boundary wall 6 is formed in a second wall region 11 as an adjustable boundary wall.
  • the second (adjustable) wall portion 11 is formed as a pivotable wall 12 which is rotatably mounted about a hinge joint 13.
  • the pivotable wall 12 represented by a double arrow B
  • the cross section of the air duct 5 can thus be adapted in a simple manner to different operating points (air delivery rates) of the radial fan 4.
  • an actuator 14 which in the present example has a servomotor 15 which drives a rack 16, which in turn is attached to the pivotable wall 12.
  • a servomotor 15 which drives a rack 16, which in turn is attached to the pivotable wall 12.
  • Fig. 2 to 4 are different possibilities (each in a cross section along the plane AA in Fig. 1 ), how a pivotable wall 12 can be realized, without it having to come to a (disadvantageous) loss of air from the radial fan housing 2 out.
  • Fig. 2, 3 and 4 In each case, different positions of the pivotable wall 12 are shown in the respective figures a and b.
  • Fig. 2 an air seal in the lateral direction by an engagement of several cover walls 17 and bottom walls 18 is realized.
  • the respective cover or bottom walls 17, 18 form a kind of lamellar seal or labyrinth seal.
  • a type of bellows 19 is provided between the pivotable wall 12 and the top wall 17 and the bottom wall 18, which reliably prevents the passage of air.
  • a pivotable wall 12 is positioned within a closed by a cover wall 17, a bottom wall 18 and an additional side wall 20 housing wall.
  • the drive of the pivotable wall 12, for example, by a rack 16, which passes through a suitable sized to the rack 16 through hole 21, which is formed in the additional side wall 20 passes.
  • FIGS. 5 and 6 is in each case in a cross section along the plane AA in Fig. 1 explains that it is not only possible to provide a pivotable wall 12 as a substitute or supplement a radial boundary wall 6. Rather, it is also additionally or alternatively possible to provide pivotable cover walls 22 and / or pivotable bottom walls 23.
  • Fig. 7 to 8 is in each case shown in a schematic plan view from above that also radial fans 1 are possible in which a part of the radial boundary wall 6 as an elastically deformable wall 25 (or more walls 25) is formed (elastically deformable walls can of course additionally and / or alternatively as cover walls 17 and / or bottom walls 18 are used).
  • the elastically deformable walls 25 are made of an elastically deformable material, which is formed in terms of its thickness and material properties so that they have a certain "inherent rigidity".
  • the elastically deformable wall 25 is connected at a single attachment point 26 with the rack 16 of an actuator 14. Due to the "inherent rigidity" of the elastically deformable wall 25 results in a corresponding "flowing" shape of the elastically deformable wall 25 over its entire length.
  • Fig. 8 is - compared to Fig. 7 -
  • the elastically deformable wall 25 is provided in another area of the radial boundary wall 6. Otherwise, however, resembles the in Fig. 8 illustrated embodiment the in Fig. 7 illustrated embodiment.
  • Fig. 9 is the elastically deformable wall 25 unlike the in FIGS. 7 and 8 illustrated embodiments at two attachment points 26 with the racks 16 of two different (in particular also different controllable) actuators 14 connected.

Landscapes

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

Claims (12)

  1. Dispositif de boîtier de ventilateur radial (2) pour des dispositifs de ventilation (1), en particulier pour des dispositifs de ventilation (1) de véhicules automobiles, présentant au moins une paroi de délimitation (6) qui délimite au moins par zones un espace de logement de ventilateur radial (3), où au moins une paroi de délimitation (6) est conçue au moins par sections (11) comme une paroi de délimitation mobile (12, 20, 23, 25), caractérisé en ce que la paroi de délimitation mobile (6) au moins au nombre de un est mobile au moins par sections et la paroi de délimitation mobile (12, 20, 23, 25) au moins au nombre de un est conçue comme un dispositif de paroi (12) pouvant pivoter autour d'un axe de rotation.
  2. Dispositif de boîtier de ventilateur radial (2) selon la revendication 1, caractérisé en ce qu'au moins une paroi de délimitation mobile (12, 20, 23, 25) délimite l'espace de logement de ventilateur radial (3) au moins par zones dans la direction axiale (20, 23) et / ou radiale (12, 25).
  3. Dispositif de boîtier de ventilateur radial (2) selon la revendication 1 ou 2, caractérisé en ce qu'au moins une paroi de délimitation mobile (12, 20, 23, 25) est conçue au moins en partie comme un dispositif de paroi déplaçable, en particulier comme un dispositif de paroi déplaçable au moins en partie le long d'une normale à la surface.
  4. Dispositif de boîtier de ventilateur radial (2) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins une paroi de délimitation mobile (12, 20, 23, 25) est conçue au moins en partie comme un dispositif de paroi élastique (25).
  5. Dispositif de boîtier de ventilateur radial (2) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins une première zone de paroi (10) de l'espace de logement de ventilateur radial (3) est conçue de façon rigide et au moins une seconde zone de paroi (11) de l'espace de logement de ventilateur radial (3) est conçue comme une paroi de délimitation mobile (12, 25).
  6. Dispositif de boîtier de ventilateur radial (2) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins une première zone de paroi (10) de l'espace de logement de ventilateur radial (3) est disposée, dans la direction d'écoulement, en amont au moins d'une seconde zone de paroi (11) de l'espace de logement de ventilateur radial (3).
  7. Dispositif de boîtier de ventilateur radial (2) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il existe seulement une première zone de paroi (10) de l'espace de logement de ventilateur radial (3) et / ou seulement une seconde zone de paroi (11) de l'espace de logement de ventilateur radial (3).
  8. Dispositif de boîtier de ventilateur radial (2) selon l'une quelconque des revendications précédentes, caractérisé par au moins un actionneur (14) et / ou par au moins un élément de couplage (16) pour un actionneur (15).
  9. Dispositif de pulseur (1), en particulier dispositif de pulseur (1) pour un véhicule automobile, présentant au moins un dispositif de boîtier de ventilateur radial (2) selon l'une quelconque des revendications 1 à 8.
  10. Système de climatisation, en particulier système de climatisation d'un véhicule automobile, présentant au moins un dispositif de boîtier de ventilateur radial (2) selon l'une quelconque des revendications 1 à 8 et / ou au moins un dispositif de pulseur (1) selon la revendication 9.
  11. Procédé de fonctionnement d'un agencement de ventilateur radial (1), caractérisé en ce qu'au moins une partie (11) au moins d'une paroi de délimitation (6) de l'espace de logement de ventilateur radial (3) de l'agencement de ventilateur radial (1) est modifiée au moins par moments et / ou au moins par zones au cours du fonctionnement de l'agencement de ventilateur radial (1), tandis que la paroi de délimitation (6) est conçue comme un dispositif de paroi (12) pouvant pivoter autour d'un axe de rotation.
  12. Procédé selon la revendication 11, caractérisé en ce que la modification se produit au moins en partie et / ou au moins par moments, en fonction des conditions de fonctionnement de l'agencement de ventilateur radial (1), en particulier en fonction du débit d'air, de la vitesse de rotation du ventilateur radial (4), de la puissance du ventilateur radial (4) de l'acoustique dans le climatiseur et / ou dans le véhicule, et / ou en fonction de la contre-pression d'air.
EP10740627.4A 2009-08-31 2010-08-04 Boîtier de ventilateur radial Not-in-force EP2473744B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009039408A DE102009039408A1 (de) 2009-08-31 2009-08-31 Radiallüftergehäuse
PCT/EP2010/061347 WO2011023508A1 (fr) 2009-08-31 2010-08-04 Boîtier de ventilateur radial

Publications (2)

Publication Number Publication Date
EP2473744A1 EP2473744A1 (fr) 2012-07-11
EP2473744B1 true EP2473744B1 (fr) 2016-12-21

Family

ID=42989581

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10740627.4A Not-in-force EP2473744B1 (fr) 2009-08-31 2010-08-04 Boîtier de ventilateur radial

Country Status (3)

Country Link
EP (1) EP2473744B1 (fr)
DE (1) DE102009039408A1 (fr)
WO (1) WO2011023508A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170274731A1 (en) * 2016-03-28 2017-09-28 Denso International America, Inc. Hvac blower adjustable divergence

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190626130A (en) * 1906-11-19 1907-10-17 Hammersley Heenan Improvements in and relating to Centrifugal Fans.
CH319466A (de) * 1952-12-01 1957-02-28 Ley Hans Einrichtung an Flügelradfördergebläsen zur Anpassung derselben an das zu fördernde Gut
DE1975808U (de) * 1963-07-13 1967-12-28 Gebhardt K G W Einstelleinrichtung fuer ventilatoren zur luftmengendosierung.
DE2437804A1 (de) * 1974-08-06 1976-02-19 Kaup Karl Heinz Radial-ventilator mit regelbarer spirale
IT1236257B (it) * 1989-12-20 1993-01-27 Euroclima Spa Dispositivo di variazione continua della massa volumetrica su ventilatori centrifughi

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE102009039408A1 (de) 2011-03-03
EP2473744A1 (fr) 2012-07-11
WO2011023508A1 (fr) 2011-03-03

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