EP2473744A1 - Boîtier de ventilateur radial - Google Patents

Boîtier de ventilateur radial

Info

Publication number
EP2473744A1
EP2473744A1 EP10740627A EP10740627A EP2473744A1 EP 2473744 A1 EP2473744 A1 EP 2473744A1 EP 10740627 A EP10740627 A EP 10740627A EP 10740627 A EP10740627 A EP 10740627A EP 2473744 A1 EP2473744 A1 EP 2473744A1
Authority
EP
European Patent Office
Prior art keywords
radial fan
wall
boundary wall
radial
partially
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
EP10740627A
Other languages
German (de)
English (en)
Other versions
EP2473744B1 (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
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 Behr GmbH and Co KG filed Critical 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

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
    • F04D29/40—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 radial fan housing device for ventilation devices, in particular for ventilation devices of motor vehicles, which have at least one boundary wall which, at least in regions, delimits a radial fan mounting space. Furthermore, 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 the case of a first application (such as, for example, in a radiator of a motor vehicle), a high air throughput (and thus a high cooling output) primarily counts, in other applications, for example, a particularly low operating noise is present (for example, in the ventilation of a motor vehicle interior). in the foreground.
  • a first application such as, for example, in a radiator of a motor vehicle
  • a high air throughput and thus a high cooling output
  • a particularly low operating noise is present (for example, in the ventilation of a motor vehicle interior). in the foreground.
  • radial fans For ventilation of interior spaces, in particular of motor vehicle interior spaces, 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 replaceable.
  • 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 which has at least one boundary wall which delimits at least a radial fan receiving space in such a way that at least one boundary wall is formed at least in sections as an adjustable boundary wall which is adjustable at least in sections.
  • this 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. This means that the adjustment bar does not necessarily relate to an initial adaptation of the tongue device at the time of mounting the radial fan housing device or the complete radial fan arrangement. Rather, it is possible to make the adjustment of the adjustable boundary wall at later times.
  • the adaptability is not only possible, for example, in a workshop and / or by trained specialist personnel, but on the contrary by the user of the device (for example, a motor vehicle driver) can be performed, or the adjustment even takes place automatically , It is particularly useful in this case if the adaptability of the adjustable boundary wall during operation of the radial fan arrangement can be carried out.
  • 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 may be any portion of any boundary wall of the radial fan housing 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 regions which lie in the region 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.
  • At least one adjustable boundary wall is formed at least partially as a wall device pivotable about an axis of rotation.
  • the corresponding wall device may for example be mounted in the manner of a hinge and pivoted by a corresponding movement, it is particularly advantageous if the pivotable wall device is designed as a rigid wall element, as this may possibly reduce the manufacturing cost.
  • a small force at a large displacement or a large force at a small adjustment (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 "softer" and thereby avoid unnecessary air turbulence, which could possibly lead to increased operating noise.
  • At least one adjustable boundary wall 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.
  • Cross section or a similar change of the air passage cross-section can be effected. This may prove to be particularly efficient and / or noiseless if necessary.
  • at least one adjustable boundary wall is formed at least as elastic wall means. With such a design, in particular unnecessary turbulence can be prevented by edge-like transitions particularly effective.
  • the control of the adjustable boundary wall may prove to be particularly simple, 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 shown 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 wall is provided, which moreover also have possibly only a 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.
  • the actuating elements and / or actuators can also be made smaller and / or simpler, which can reduce the costs of the overall arrangement and can further increase the reliability of the overall arrangement. It when at least a first wall portion of the radial fan receiving space is arranged in front of at least a second wall portion of the radial fan receiving space is particularly advantageous. Experiments have shown that it is usually particularly effective when such a structure is chosen. In other words, an adjustable boundary wall in a " rear" part of the airflow can usually cause a greater noise reduction, in particular in the case of widely varying operating conditions of the radial fan arrangement. As a rule, a particularly simple but nevertheless effective overall construction of the radial fan arrangement can be achieved with such a design Floor or ceiling panels as well as wall areas which form a transition area from the actual housing spiral to an air outlet channel.
  • 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 limiting wall or walls can be generated or introduced into the radial fan arrangement.
  • the actuators need not necessarily be electrical, pneumatic, magnetic or other actuators. Rather, these may also be mechanical actuators or coupling elements such as, for example, cables, torsion bars, coupling rods, control buttons, operating levers and the like.
  • a blower device in particular a blower device for a motor vehicle, with at least one radial fan housing device which has 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 with the structure described above.
  • the air conditioning system then has the advantages and properties already described in an analogous manner.
  • FIG. 1 shows a first embodiment of a radial fan in a schematic view from above
  • 2 shows a partial cross section through a second embodiment of a radial fan with adjustable boundary wall
  • 3 shows a partial cross section through a third embodiment of a radial fan with adjustable boundary wall
  • 4 shows a partial cross section through a fourth exemplary embodiment of a radial fan with adjustable boundary wall
  • Flg. 5 shows a partial cross section through a fifth exemplary embodiment of a radial fan with adjustable boundary wall
  • 6 shows a partial cross section through a sixth embodiment of a radial fan with adjustable Begre ⁇ zungswand;
  • FIG. 7 shows a seventh exemplary embodiment of a radial fan in a schematic plan view from above
  • FIG. 8 shows an eighth exemplary embodiment of a radial fan in a schematic plan view from above
  • FIG. 9 shows a ninth embodiment for a radial fan in a schematic plan view from above.
  • a first embodiment of a radial fan 1 is 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 with the help of the radial IDfterrads 4 to be conveyed air is drawn perpendicular to the plane of FIG. 1 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 gap between the outside of the radial fan 4 and the radial boundary walls 6 of the radial fan housing 2.
  • the air conveyed by the radial fan 4 vri rtri the radial fan housing 2 via a Beerausströmkanal 7.
  • the Heilausströmkanal 7 is located in a region between a so-called radial fan blade 8 and an opposite channel wall.
  • 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 along the air channel 5, steadily increases. So that the air flow speed in the air duct 5 remains approximately constant and in particular does not assume 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 is shaped in the form of a logarithmic spiral or an archival spiral (linear spiral).
  • the air duct 5 is usually optimized for a maximum air delivery rate of the radial fan 4.
  • the design of the radial fan housing 2 is accordingly too large and usually cause noise, especially low-frequency noise, which are perceived as particularly disturbing. If the air duct 5 of the spiral were to be turned downwards, a poor efficiency of the radial fan 1 due to the high air back pressure in the air duct 5 would occur at high air delivery rates.
  • the air velocity in the air duct 5 would increase excessively, which would also result in high operating noise (in particular high noise at higher frequencies). This too is undesirable.
  • the radial boundary wall 6 is designed in two parts in the case of the radial fan casing 2 shown in FIG.
  • 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.
  • an actuator 14 is provided, which in the present example has a servomotor 15 which drives a toothed rack 16, which in turn is fastened to the pivotable wall 12.
  • a servomotor 15 which drives a toothed rack 16, which in turn is fastened to the pivotable wall 12.
  • FIGS. 2 to 4 show different possibilities (in each case in a cross section along the plane A - A in FIG. 1) of how a pivotable wall 12 can be realized without it having to result in (disadvantageous) air loss from the radial fan housing 2 .
  • FIGS. 2, 3 and 4 different positions of the pivotable wall 12 are shown in respective figures a and b.
  • an air seal in the lateral direction is realized by engaging several cover walls 17 or bottom walls 18 into one another.
  • the respective cover or bottom walls 17, 18 form a kind of lamellar seal or labyrinth seal.
  • a type of bellows 19 is provided, which reliably prevents the passage of air.
  • a pivotable wall 12 is positioned within a housing wall closed by means of a cover wall 17, a bottom wall 18 and an additional side wall 20.
  • 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 in each case in a cross section along the plane AA in FIG. 1, it is explained that it is not only possible to provide a movable wall 12 as a replacement or supplement to 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. The pivoting of the lid walls 22 or the pivotable bottom walls 23 takes place in the embodiment shown in FIG.
  • FIGS. 7 to 8 each show in a schematic plan view from above that radial fans 1 are also possible in which a part of the radial boundary wall 6 is designed as an elastically deformable wall 25 (or a plurality of walls 25) (elastically deformable walls 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, in terms of its thickness and material properties, is designed such that it has a certain "inherent rigidity.” This makes it possible, for example, in the exemplary embodiment shown in FIG. 7, for the elastically deformable wall 25 is connected to the rack 16 of an actuator 14 at a single attachment point 26. Owing to the inherent stiffness of the elastically deformable wall 25, a correspondingly "flowing" shaping of the elastically deformable wall 25 results over its entire length.
  • the elastically deformable wall 25 is provided in another area of the radial boundary wall 6. Otherwise, however, the embodiment shown in FIG. 8 is similar to the embodiment shown in FIG. 7. In Flg.
  • the elastically deformable wall 25 is connected at two attachment points 26 to the toothed racks 16 of two different (in particular also differently controllable) actuators 14. By means of a corresponding activation of the two actuators 14 which is independent of one another, it is possible to realize different " wavy" surface contours of the elastically deformable wall 25, which are particularly advantageous for an air flow through the air channel 5.
  • the contour of the deformable wall 25 can be further optimized also more than two attachment points 26 may be provided.

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)

Abstract

La présente invention concerne un dispositif de boîtier de ventilateur radial (2) destiné à des dispositifs de ventilation (1) de véhicules automobiles, qui présentent au moins une paroi limite (6) qui délimite au moins par zones un espace de réception de ventilateur radial (3). Selon l'invention, au moins une paroi limite (6) se présente au moins par sections (11) sous la forme d'une paroi limite réglable (12, 20, 23, 25).
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 true EP2473744A1 (fr) 2012-07-11
EP2473744B1 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
See references of WO2011023508A1 *

Also Published As

Publication number Publication date
DE102009039408A1 (de) 2011-03-03
EP2473744B1 (fr) 2016-12-21
WO2011023508A1 (fr) 2011-03-03

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