EP2574794A2 - Composant d'aération - Google Patents

Composant d'aération Download PDF

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Publication number
EP2574794A2
EP2574794A2 EP20120186254 EP12186254A EP2574794A2 EP 2574794 A2 EP2574794 A2 EP 2574794A2 EP 20120186254 EP20120186254 EP 20120186254 EP 12186254 A EP12186254 A EP 12186254A EP 2574794 A2 EP2574794 A2 EP 2574794A2
Authority
EP
European Patent Office
Prior art keywords
housing
flow direction
link
ventilation component
component according
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
EP20120186254
Other languages
German (de)
English (en)
Other versions
EP2574794A3 (fr
EP2574794B1 (fr
Inventor
Thomas Wolters
Jochen Hampel
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.)
Trox SE
Original Assignee
Gebrueder Trox GmbH
Trox SE
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 Gebrueder Trox GmbH, Trox SE filed Critical Gebrueder Trox GmbH
Priority to PL12186254T priority Critical patent/PL2574794T3/pl
Priority to EP12186254.4A priority patent/EP2574794B1/fr
Priority to NO12186254A priority patent/NO2574794T3/no
Publication of EP2574794A2 publication Critical patent/EP2574794A2/fr
Publication of EP2574794A3 publication Critical patent/EP2574794A3/fr
Application granted granted Critical
Publication of EP2574794B1 publication Critical patent/EP2574794B1/fr
Active 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
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • F04D17/165—Axial entry and discharge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
    • 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
    • F04D29/663—Sound attenuation
    • F04D29/664—Sound attenuation by means of sound absorbing material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/065—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit fan combined with single duct; mounting arrangements of a fan in a duct
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F24F2013/242—Sound-absorbing material

Definitions

  • the invention relates to a ventilation component, comprising a channel-shaped housing of preferably rectangular or square cross-section, wherein in the housing at least one centrifugal fan and at least one silencer for flowing gases are provided, wherein in particular the silencer is arranged in the flow direction behind the centrifugal fan and at least one Having filled with an absorbent material backdrop.
  • a centrifugal fan includes an impeller driven by a drive motor.
  • the impeller usually has a cover plate and a support disc, between which impeller blades are arranged.
  • the air is usually sucked parallel to the drive axis of the centrifugal fan and deflected by the rotation of the radial impeller by 90 ° and blown out radially.
  • the radial fans used in the present field do not have a housing disposed around the impeller.
  • Known mufflers have several juxtaposed scenes on. Two adjacent scenes form between each a flow channel.
  • the scenes work according to the absorption principle or according to the absorption resonance principle or according to the resonance principle.
  • the scenes are with their top and bottom with the inside of a gate frame or the housing in contact.
  • the distance in known ventilation components between the edges of the impeller blades, which face the backdrop of the slotted silencer, on the one hand and the backdrop on the other hand corresponds to the diameter of the support plate of the intended radial fan. Falling below this distance is not possible because otherwise the performance of the ventilation component would be significantly reduced by the pressure losses of the muffler.
  • the flow rate is sometimes very low in the flow channels located in the middle of the housing.
  • the object of the invention is to avoid the aforementioned disadvantages and to provide a ventilation component with a silencer, which has a lower pressure loss with the same or optimized sound attenuation.
  • each associated with a centrifugal fan backdrop the area between the outer dimensions of the scenery seen in the flow direction is filled at least partially, that each backdrop is located at a distance to the next adjacent component and thus each backdrop on all sides of a circumferential space is surrounded to flow of the gas, so that each backdrop can be flowed around on all sides by the flowing gas, wherein the housing cross-section corresponding to the number of provided in a region of the housing cross-sections scenes number of theoretical housing cross-sectional portions each block having respect to its associated Gescousquer4.000teil Scheme between 55% and 90%, preferably locked between 64% and 81% of the theoretically free flow cross-section of the housing cross-sectional portion.
  • the housing cross-sectional partial area corresponds to the housing cross-section.
  • a total of four theoretical housing cross-sectional portions are provided.
  • the size of the housing cross-sectional portions may be identical or different. It is of course possible for a housing cross-sectional portion to be subdivided into housing cross-sectional lower regions.
  • At least one, preferably each, backdrop can not be flowed through even in the flow direction.
  • the area between the outer dimensions of the scenery is only partially filled in a backdrop, it is advisable that the seen in the flow direction rear area of the backdrop is filled.
  • the backdrop can also be filled over its complete, extending parallel to the flow direction length.
  • the free space along the flow around the longitudinal extent of the backdrop ie, seen in the flow direction, consistent.
  • the outer dimensions of the backdrop for example, parallel to the adjacent walls of the housing.
  • Each backdrop for example, consist of several layers that are directly adjacent to each other. Due to the spaced arrangement of each backdrop to the inner wall of the housing and / or the adjacent backdrop, the sound energy can not only on the two parallel aligned to the flow direction side surfaces but u. a. also penetrate over the top and the bottom of each backdrop in the backdrop in question. At the same time due to the all-round flow around the pressure loss is reduced at least the same high sound attenuation.
  • each backdrop which is possibly interrupted at most only by a holding structure holding the respective backdrop.
  • holding structure for holding any backdrop, for example in the area of the top and bottom, holding rods.
  • Other support structures such. As wires or cables that fix the gate in the interior of the housing, are of course conceivable.
  • each link is preferably arranged at a very small distance from the impeller of the centrifugal fan.
  • the geometric distance between the upstream side of a backdrop on the one hand and the edges of the impeller blades, which are arranged assigning the backdrop of the slotted silencer, on the other hand understood. It lends itself, though the aforementioned distance between the edges of the impeller blades, which are arranged facing the backdrop of the slotted silencer, and the upstream front of each backdrop between 1 to 20 cm, preferably between 5 to 10 cm, is located.
  • the ventilation component according to the invention also has a particularly short overall length.
  • Each scenery consists of a sound absorbing effect absorbing material or is filled with such a material.
  • At least one backdrop can be made for example of rock wool.
  • the surface of the rock wool is preferably laminated with a glass silk fabric to prevent unwanted extraction of rock wool particles.
  • the backdrop in question 3 for example, have a perforated plate.
  • Each slide can be designed to be open, for example, in the area of its outer sides. But it is also quite possible that one or more of the flowing gas facing outer side (s) is open and another outer side is formed closed.
  • a closed design chamber plates of a thickness of up to 0.35-0.5 mm are commonly used.
  • a closed on all sides scenery is of course possible.
  • the backdrop is completely surrounded by a sheet metal. Then it is a Resonatorkulisse.
  • Resonator sheets can have a thickness between 0.5 mm and 2 mm. Of course, it is possible that seen in the flow direction several scenes are arranged one behind the other.
  • the inflow-side and / or the outflow-side end face in the region of their Edges rounded or beveled. As a result, the pressure loss is reduced due to the better flow around. This also leads to a lower formation of intrinsic noises.
  • At least one slide is centered in its associated housing cross-sectional portion in a first direction and / or a second direction orthogonal to the first direction.
  • all scenes are centered in their respective associated housing cross-sectional portion in a first direction and / or a second direction orthogonal to the first direction.
  • At least one, in particular each, radial fan in each case exclusively a single, block-like trained backdrop, in particular in the form of a cuboid associated.
  • the block-like backdrop also cavities may be provided, which contribute to the sound absorption.
  • the scenery is flowed around from all sides, with the scenery with no outside in contact with the housing and / or the (the) adjacent backdrop (s).
  • the pressure loss when using a suitably designed backdrop can be further reduced because due to the circumferential clearance, the radially outward from the radial fan air can continue to flow directly over the circumferential space in the flow direction.
  • a ventilation component is particularly suitable for use in a decentralized ventilation unit, for example in an underfloor ventilation unit.
  • a use of the ventilation component according to the invention in an air conditioning central system is possible.
  • the ventilation component according to the invention comes due to the shorter "distance range" significantly better acoustic properties between the impeller and the scenery.
  • the dimensions in at least one backdrop can be seen constant in the flow direction, so that thus the width of the free space - in parallel aligned walls of the housing - is constant in the flow direction.
  • the dimensions can be seen in the flow direction, in particular stepwise, increase and thus the width of the free space seen in the flow direction - in parallel aligned walls of the housing - decrease.
  • the increase in the dimensions of the slide in the flow direction may be formed continuously or discontinuously.
  • the housing has a corresponding, for example, step-like course, so that then the width, ie the height, of the free space seen in the flow direction remains constant.
  • the dimensions in the direction of flow decrease as seen in at least one backdrop, and thus the width of the free space seen in the flow direction increases - with parallel walls of the housing - increases.
  • the reduction in the dimensions of the link in the flow direction may be formed continuously or discontinuously.
  • the width, d. H. the height, the free space seen in the flow direction constant.
  • the dimensions can be seen discontinuously, in particular stepwise, reduce in at least one backdrop in the flow direction and thus can - seen in parallel walls of the housing - the width of the free space in the flow direction increase.
  • the dimensions can be seen in at least one backdrop in the flow direction in particular reduce continuously and thus can - seen in parallel walls of the housing - the width of the free space in the flow direction increase.
  • the angle ⁇ between an outer side and pointing in the direction of flow center axis of the gate between 4 ° and 10 °, preferably 7.5 °, amount.
  • the backdrop is designed in the manner of a diffuser. Due to the design of the scenery as a diffuser part of the dynamic pressure can be converted into static pressure.
  • At least one slide can have a recess for receiving part of the radial fan, in particular the drive motor, on the inlet side facing the radial fan.
  • At least one slide can have a quadrangular, in particular rectangular, cross section with four, in particular parallel to the housing aligned, outer sides.
  • the transition region of two adjacent outer sides may be touched or rounded.
  • the centrifugal fan or the centrifugal fans can be arranged upstream of a common diaphragm in the flow direction, which has at least one opening, in particular for each centrifugal fan in each case an associated opening for the passage of the flow medium to the intake of the centrifugal fan or radial fans. Between the diaphragm and the radial fan and a connection piece may be provided.
  • At least two side by side and / or superposed arrangements are each provided comprising a radial fan and a muffler with a filled with an absorbent material backdrop.
  • Such a configuration can be arranged within an air-conditioning system so that a common inlet and a common outlet are provided.
  • the assemblies are disposed between the inlet and the outlet in the housing so that the air flowing into the housing is "split up" onto the various assemblies.
  • At least one link can be arranged in the housing such that the link has a distance to the adjacent inner wall of the housing, which in particular is in each case 5 to 10% of the corresponding inner dimension of the housing.
  • At least one slide can be arranged in the housing such that the slide has a distance from the boundaries G of its housing cross-sectional portion, in particular is 5 to 10% of the corresponding dimension of the housing cross-section portion. If the ventilation component has only one slide, the housing cross-sectional partial area corresponds to the housing cross-section. Then, the walls of the housing, the limits G represent. In an embodiment with, for example, four scenes total of four theoretical housing cross-sectional portions are provided. The four boundaries of each housing cross-sectional portion are formed by two walls of the housing and by the two virtual theoretical limits G.
  • a ventilation component which comprises a channel-shaped housing 1 with a rectangular cross-section, in which a radial fan 2 and a muffler for flowing gases are provided, wherein the muffler has a filled with an absorbent material backdrop 3. Since each one in the Fig. 1 to 3 . 9 to 11 such as 14 to 19 illustrated ventilation component only has a gate 3, the housing cross-sectional portion I corresponds to the housing cross-section.
  • the gate 3 is arranged behind the radial fan 2 as seen in the flow direction 4.
  • the centrifugal fan 2 is driven by a drive motor 5, which is arranged on the downstream side of the centrifugal fan 2.
  • a drive motor 5 is arranged on the downstream side of the centrifugal fan 2.
  • About a shaft of the centrifugal fan 2 and the drive motor 5 are interconnected.
  • the centrifugal fan 2 includes an impeller 2a driven by the drive motor 5.
  • the impeller 2a has a cover disk 2b and a support disk 2c, between which a plurality of impeller blades 2d are arranged.
  • the support disk 2c is arranged on the side facing the drive motor 5 side of the impeller 2a.
  • a diaphragm 6 In the flow direction 4 seen in front of the centrifugal fan 2, a diaphragm 6 is arranged, which has a rectangular opening 7 for the passage of the gas to the intake of the centrifugal fan 2 out. Between the rectangular opening 7 in the aperture 6 and the suction of the centrifugal fan 2, a connecting piece 8 is provided.
  • the radial fan 2 with the drive motor 5 and the diaphragm 6 are fixed to a lower-side support structure 9, which is attached to the housing 1.
  • each link 3 is formed as a single block-like design 3, wherein the slide 3 is arranged in the housing 1, that on all sides there is a distance from the housing 1. This results in a circumferential free space 10 for the flow of gas, which is interrupted only in the lower region of the support structure 9. In this way the backdrop 3 is surrounded on all sides by the flowing gas.
  • the dimensions of the link 3 seen in the flow direction 4 decreases continuously, so that the link 3 seen in the side view has the shape of a truncated pyramid.
  • the angle ⁇ between the outside and pointing in the direction of flow 4 center axis of the link 3 is in the illustrated embodiment about 7 °.
  • the backdrop 3 is formed in the manner of a diffuser.
  • each transitional area of two adjacent outer sides of the gate 3 is touched.
  • a backdrop 3 shown which is designed as a cuboid.
  • Fig. 7a to c show an embodiment in which the dimensions of the link 3 seen in the flow direction 4 at a point 11 increase in size and consequently the width of the free space 10 seen in the flow direction 4 - if the walls of the housing 1 are parallel - decreases in the area 11 , Both arranged one behind the other in the flow direction 4 Subregions of the gate 3 have in the illustrated embodiment, parallel side surfaces.
  • Fig. 8a to c an embodiment is shown in which the inflow-side region of the gate 3 is cuboid-shaped and reduce the dimensions of the gate 3 to the downstream end.
  • the free space 10 initially having a constant width increases toward the downstream end, provided that the walls of the housing 1 are arranged in parallel.
  • the gate 3 on the radial fan 2 facing upstream side has a recess 12 into which projects a part of the drive motor 5 of the centrifugal fan 2. This reduces the overall length of the ventilation component.
  • the recess 12 is in detail in FIG Fig. 4c shown.
  • the drive motor 5 is arranged in the hub of the centrifugal fan 2.
  • centrifugal fans 2 are also referred to as fans with integrated directly in the impeller or flanged drive motor.
  • the radial fan 2 has therefore seen in the flow direction 4 has a very short length.
  • the distance between the edges of the impeller blades 2d, which face the gate 3, on the one hand and the link 3 on the other hand is very small, so that the overall length of the ventilation component is very low.
  • Fig. 9 and 10 is for better illustration of the structural design of the respective centrifugal fan 2, the respective gate 3 is not shown.
  • a ventilation component which in turn has a channel-shaped housing 1 with a rectangular cross-section.
  • four radial fans 2 are arranged in the housing 1, wherein each radial fan 2 is assigned a respective muffler.
  • Each muffler has a filled with an absorbent material backdrop 3. Since four scenes 3 are arranged in the housing 1, the housing cross-section has a corresponding number, namely four, theoretical housing cross-sectional portions I-IV.
  • Each link 3 is arranged in the flow direction 4 behind its associated centrifugal fan 2, so that in the in Fig. 12 View shown each backdrop 3 the upstream seen in the flow direction 4, its associated radial fan 2 hidden.
  • the diaphragm 6 In the flow direction 4 seen in front of the four centrifugal fans 2, the diaphragm 6 is arranged, which has four rectangular openings 7 for the passage of the gas to the intake of the respective centrifugal fan 2.
  • Each link 3 is formed as a single block-like design gate 3, wherein each link 3 is arranged in the housing 1, that on all sides there is a distance from the housing 1 and the adjacent link 3. This creates around each backdrop 3 around a circumferential space 10 for the flow of gas, which is interrupted only in the respective lower region of a backdrop 3 of the support structure 9. In this way, each backdrop 3 is surrounded on all sides by the flowing gas.
  • Fig. 12 illustrated embodiment corresponds to the distance between two scenes 3 approximately twice the distance between a gate 3 to the adjacent inner wall of the housing. 1
  • each link 3 is fixed in the region of its lower-side upstream edge by means of a support structure 9 on the housing 1.
  • the support structure 9 of each link 3 consists of two feet.
  • the centrifugal fans 2 may be attached to the diaphragm 6, for example. The direction of rotation of the four centrifugal fans 2 is the same.
  • each link 3 viewed in the side view has the shape of a truncated pyramid.
  • the angle ⁇ between the outside and pointing in the direction of flow 4 center axis of the link 3 is in the illustrated embodiment about 7 °.
  • each link 3 is formed in the manner of a diffuser.
  • FIGS. 14 to 17 an alternative embodiment of a ventilation component according to the invention is shown.
  • the backdrop 3 of a total of 5 components 3a-3e are four insulating panels 3b-3e arranged at right angles to each other and forming a quadrangle, the insulating panels 3b-3d enclosing the drive motor 5 laterally and laterally, while the lower insulating panel 3e only extends approximately as far as the drive motor 5 in the flow direction 4 borders.
  • the cavity formed by the four insulating panels 3b-3e seen in the flow direction 4 behind the drive motor 5 completely by a Dämmklotz 3a filled, with its four sides with one of the four insulation boards 3b-3e in contact.
  • a sound insulation and / or sound damping plate as sound insulation and / or sound damping material 13.
  • the free space 10 is formed in this embodiment between the inside of the sound-absorbing and / or sound-damping plate and the relevant outer side of one of the four insulating panels 3b-3e.
  • Fig. 18 an alternative embodiment is shown.
  • the lower insulation board 3a extends into the region of the front edge of the drive motor 5, so that the drive motor 5 is circumferentially completely surrounded by the four insulating panels 3b-3e.
  • the insulation boards 3b-3e form the recess 12 in the region of the end facing the flow direction 4.
  • Fig. 19 are shown in sectional drawings possible cross-sectional shapes of a housing 1, wherein for reasons of clarity, only a gate 3 and the result of the arrangement of the link 3 in the housing 1 resulting free space 10 are located.
  • the height or width of the free space 10 is determined in the direction of the indicated arrows.
  • the one end of each arrow is perpendicular to the surface of the gate 3 or on the corresponding tangent to a curved backdrop 3.
  • the other end of the arrow is perpendicular to the adjacent inner side of the wall of the housing 1 and on the corresponding tangent in a curved Housing 1.
  • Fig. 19c are in the details V and W on an enlarged scale, the areas I of an inner corner and in detail U on an enlarged scale, the area E of a corner Fig. 19c shown.
  • Fig. 19b it is a round housing 1.
  • the space 10 has the same width at each point.
  • Fig. 19c an embodiment is shown in which the distances between the housing 1 and the gate 3 are different from each other. However, except in the eight areas E located in the eight corners, and except in the eight areas I located in the eight inside corners, each distance is within the claimed area.
  • FIG. 20 Based on Fig. 20 the housing cross-sectional portions I-IV are explained. In Fig. 20 For the sake of clarity, only four juxtaposed scenes 3 are shown in the housing 1.
  • both the outer dimensions of each slide 3 and the walls of the housing 1 are parallel.
  • the housing cross-section has a corresponding number, namely four, theoretical housing cross-sectional portions I-IV.
  • Each of these four housing cross-sectional portions I-IV is formed in the present case by two adjacent walls of the housing 1 and by two virtual boundaries G. The latter are therefore shown only by dashed lines.
  • each link 3 obstructs between 84% and 88% of the relevant housing cross-sectional subarea I or II or III or IV, respectively, relative to its associated housing cross-sectional portion I or II or III or IV.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP12186254.4A 2011-09-30 2012-09-27 Composant d'aération Active EP2574794B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL12186254T PL2574794T3 (pl) 2011-09-30 2012-09-27 Wentylacyjny element konstrukcyjny
EP12186254.4A EP2574794B1 (fr) 2011-09-30 2012-09-27 Composant d'aération
NO12186254A NO2574794T3 (fr) 2011-09-30 2012-09-27

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP11183516 2011-09-30
EP12186254.4A EP2574794B1 (fr) 2011-09-30 2012-09-27 Composant d'aération

Publications (3)

Publication Number Publication Date
EP2574794A2 true EP2574794A2 (fr) 2013-04-03
EP2574794A3 EP2574794A3 (fr) 2013-06-05
EP2574794B1 EP2574794B1 (fr) 2018-01-24

Family

ID=46880639

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12186254.4A Active EP2574794B1 (fr) 2011-09-30 2012-09-27 Composant d'aération

Country Status (7)

Country Link
EP (1) EP2574794B1 (fr)
DK (1) DK2574794T3 (fr)
ES (1) ES2666297T3 (fr)
HU (1) HUE038879T2 (fr)
NO (1) NO2574794T3 (fr)
PL (1) PL2574794T3 (fr)
PT (1) PT2574794T (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3013426A1 (fr) * 2013-11-20 2015-05-22 Atlantic Climatisation Et Ventilation Unite de ventilation a piege a son
FR3034504A1 (fr) * 2015-04-03 2016-10-07 Atlantic Climatisation & Ventilation Module de ventilation d'un systeme de ventilation pour habitation
EP3228873A1 (fr) * 2016-04-04 2017-10-11 Trox GmbH Ventilateur centrifuge dans une canalisation, avec un dispoditif de blocage placé en aval du ventilateur et concentrique avec celui-ci
EP3372838A1 (fr) * 2017-03-07 2018-09-12 ebm-papst Mulfingen GmbH & Co. KG Dispositif de conduite d'air
EP3744606A1 (fr) * 2019-05-27 2020-12-02 ALSTOM Transport Technologies Dispositif de ventilation pour véhicule comportant au moins un élément d'absorption acoustique et véhicule associé

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
GB1198549A (en) * 1967-06-29 1970-07-15 Par Acoustics Ltd Silencers.
FR2226003A5 (fr) * 1973-04-12 1974-11-08 Frederiksen Mogens
DE2513946C2 (de) * 1975-03-29 1981-11-26 Gebrüder Trox, GmbH, 4133 Neukirchen-Vluyn Kulissenschalldämpfer
DE9110195U1 (de) * 1991-08-17 1991-10-24 Neuhaus, Gerhard, Dipl.-Ing., 6301 Fernwald Ventilator
DK183691A (da) * 1991-11-08 1993-05-09 Novenco As Ventilations- og filtermodul til renrumsventilation

Non-Patent Citations (1)

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

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3013426A1 (fr) * 2013-11-20 2015-05-22 Atlantic Climatisation Et Ventilation Unite de ventilation a piege a son
EP2894414A1 (fr) * 2013-11-20 2015-07-15 Atlantic Climatisation et Ventilation Unite de ventilation à piege à son
FR3034504A1 (fr) * 2015-04-03 2016-10-07 Atlantic Climatisation & Ventilation Module de ventilation d'un systeme de ventilation pour habitation
EP3228873A1 (fr) * 2016-04-04 2017-10-11 Trox GmbH Ventilateur centrifuge dans une canalisation, avec un dispoditif de blocage placé en aval du ventilateur et concentrique avec celui-ci
EP3372838A1 (fr) * 2017-03-07 2018-09-12 ebm-papst Mulfingen GmbH & Co. KG Dispositif de conduite d'air
EP3744606A1 (fr) * 2019-05-27 2020-12-02 ALSTOM Transport Technologies Dispositif de ventilation pour véhicule comportant au moins un élément d'absorption acoustique et véhicule associé
FR3096641A1 (fr) * 2019-05-27 2020-12-04 Alstom Transport Technologies Dispositif de ventilation pour véhicule comportant au moins un élément d'absorption acoustique et véhicule associé

Also Published As

Publication number Publication date
EP2574794A3 (fr) 2013-06-05
NO2574794T3 (fr) 2018-06-23
EP2574794B1 (fr) 2018-01-24
HUE038879T2 (hu) 2018-12-28
ES2666297T3 (es) 2018-05-03
DK2574794T3 (en) 2018-05-07
PL2574794T3 (pl) 2018-07-31
PT2574794T (pt) 2018-04-24

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