EP2904270A1 - Carter pour un ventilateur axial - Google Patents

Carter pour un ventilateur axial

Info

Publication number
EP2904270A1
EP2904270A1 EP13717754.9A EP13717754A EP2904270A1 EP 2904270 A1 EP2904270 A1 EP 2904270A1 EP 13717754 A EP13717754 A EP 13717754A EP 2904270 A1 EP2904270 A1 EP 2904270A1
Authority
EP
European Patent Office
Prior art keywords
housing according
diffuser
housing
longitudinal axis
opening
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
EP13717754.9A
Other languages
German (de)
English (en)
Other versions
EP2904270B1 (fr
Inventor
Oliver Haaf
Matthias Maschke
Dieter Best
Thomas Sauer
Sebastian Bundschuh
Sven BECK
Markus ENGERT
Jürgen Schöne
Alexander LUST
Sebastian Hoss
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.)
Ebm Papst Mulfingen GmbH and Co KG
Original Assignee
Ebm Papst Mulfingen 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 Ebm Papst Mulfingen GmbH and Co KG filed Critical Ebm Papst Mulfingen GmbH and Co KG
Priority to EP13717754.9A priority Critical patent/EP2904270B1/fr
Publication of EP2904270A1 publication Critical patent/EP2904270A1/fr
Application granted granted Critical
Publication of EP2904270B1 publication Critical patent/EP2904270B1/fr
Active 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
    • F04D29/66—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/002—Axial flow 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
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/545—Ducts
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/64—Mounting; Assembling; Disassembling of axial pumps
    • F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
    • F04D29/646—Mounting or removal of 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
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
    • 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
    • F24F13/20—Casings or covers
    • 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
    • F24F7/007—Ventilation with forced flow
    • 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
    • F05D2250/20—Three-dimensional
    • F05D2250/29—Three-dimensional machined; miscellaneous
    • F05D2250/294—Three-dimensional machined; miscellaneous grooved

Definitions

  • the present invention relates to a housing for a fan or fan, in particular for an axial fan, comprising a wall ring with an inlet nozzle portion and an outflow connected thereto annular diffuser with an inflow opening and an outflow opening and a holder for an electric motor of the fan, in an interior of the housing is arranged.
  • the present invention is based on the object, on the one hand a
  • the outer diffuser is formed from at least two partial ring sections, which by means of mechanical
  • Connecting means are connected to its outer peripheral surface, and the holder of several on one inner peripheral surface of the diffuser with one end fastened ble, circumferentially spaced, in the edge region of its Inflow opening attachable struts, which are mounted with its other end to a motor flange of a motor housing of the electric motor.
  • the outer diffuser is formed of four partial ring sections and four equally spaced struts are provided, which are in particular formed of two parallel spokes.
  • the outer diffuser according to the invention consists of plastic, and the mechanical connection of the individual partial ring sections takes place with the aid of screws or rivets or through
  • the outer diffuser expands conically from its inflow opening to its outflow opening with a cone angle ⁇ of 10 ° to 18 °, in particular 12 ° to 15 °, relative to its central axis X-X.
  • the course of the peripheral wall of the diffuser can be made both straight and curved from the inflow opening to the outflow opening.
  • the diffuser has a height measured in the direction of the longitudinal axis XX above vanes of the axial fan arranged in the wall ring, which is greater than / equal to 200 mm to 800 mm, with a ratio of L: D1 of 0.25 to 1, 0, preferably 0.25 to 0.8, where L is the height of the outer diffuser measured in the direction of
  • the invention provides that within the outer diffuser centric to its central axis an inner diffuser is arranged, which extends from the inflow opening to the outflow opening and a closed
  • Motor flange of the motor housing of the electric motor is connectable.
  • the inner diffuser has a connection area for the motor flange
  • Circumferential wall having a circular flow cross-section and forms an annular portion which in an air duct section with a polygonal, in particular quadrangular cross-section, in particular with rounded corners, passes.
  • This air guide section has in particular starting from the
  • the inventive arrangement and design of the inner diffuser prevents a hub backflow and optimizes the efficiency.
  • Outflow opening a circular protective grid is arranged, which is connected with its outer peripheral edge with the outer diffuser.
  • the inner diffuser is also connected to the protective grid by placing on the protective grid on its side pointing in the outflow direction
  • End cover rests which is detachably connected to the Heilleitabsammlung of the inner diffuser via fastening means such that the protective grille is enclosed between the end cap and the Heilleitabites.
  • the protective grid according to the invention preferably has square meshes.
  • a large mesh size for example, from 30 mm to a maximum of 40 mm, in square mesh advantage.
  • Fig. 1 is a perspective view from above of an inventive
  • Housing with therein electric motor with mounted fan wheel, 2 shows a section along the section line II-II in Fig. 1,
  • Fig. 3 is a perspective view from below of an inventive
  • FIG. 5 is a perspective view of an interior diffuser according to the invention without end cap
  • FIG. 6 is a partial view of another embodiment of a
  • Fig. 7 is a perspective view of a housing according to the invention.
  • FIG. 8 shows a detail according to FIG. 7 at A, FIG.
  • Fig. 10 is a partial view of FIG. 8 with attached inner diffuser.
  • This inlet nozzle section 3 encloses a circular cross-section
  • annular outer diffuser 6 is connected at the free end of the inlet nozzle section 3, which has an in particular circular inflow opening 7 and an in particular circular outflow opening 8.
  • the flow direction of a medium to be transported through the housing by means of the axial fan 1 is indicated by Z.
  • the axial fan 1 consists of an electric motor 9 to which a paddle wheel 1 1 is drivingly connected.
  • the outer diffuser 6 preferably consists of at least two partial ring sections 12, wherein in the illustrated embodiment, four partial annular sections 12 are shown, which by means of mechanical connection means 13 to an outer
  • Peripheral surface of the outer diffuser 6 are interconnected. Everyone
  • Partial ring portion 12 extends over a certain peripheral region, so that in the assembled state, the partial ring sections 12 are connected to a circumferentially closed ring member.
  • the outer diffuser 6 is
  • the connecting means 13 may be, for example, screws, rivets or a locking connection.
  • the housing according to the invention has a holder of at least three struts 14, which circumferentially have mutually equal distances. These struts 14 are fastened in the edge region of the inflow opening 7 on the inner peripheral surface of the outer diffuser 6. At its other end, the struts 14 can be fastened to a motor flange 16 of the electric motor 9 or a housing 17 of the electric motor 9.
  • the struts 14 are expediently connected to one another via an annular flange 14 a, wherein the annular flange 14 a by means of connecting means, for. B. screws is attached to the motor flange 16.
  • the struts 14 form a supporting star with the annular flange 14a.
  • the outer diffuser 6 has a height L measured in the direction of the longitudinal axis XX above vanes wheel 1 1 arranged in the wall ring 2 or the inlet nozzle section 3 and in particular greater than or equal to 200 mm up to and including 800 mm is.
  • L / D1 preferably 0.25 to 1, 0, in particular 0.25 to 0.8 is provided, wherein D1 is the diameter of the inflow opening 7 of the outer diffuser 6.
  • the outer diffuser 6 widens conically from its inflow opening 7 to its outflow opening 8 with respect to its center axis X-X
  • the outer diffuser 6 has, on its outer side, in the region of the inflow opening 7 corresponding to the number of struts 14, d.
  • H. in the present embodiment has four mounting portions 18.
  • These attachment regions 18 are in particular outwardly flared at an angle ⁇ between 90 ° and 90 ° + ⁇ and preferably have an angled portion 19 at their free end.
  • This angled portion 19 extends at an angle ⁇ to the longitudinal axis X-X.
  • This bend 19 abuts against a tab 21, which is formed on the ends of the struts 14 and also at the angle ß to the longitudinal axis X-X is arranged.
  • an inner diffuser 26 is arranged in particular within the outer diffuser 6.
  • the arrangement of the inner diffuser 26 is centric to the longitudinal axis XX.
  • the inner diffuser 26 extends from the inflow opening 7 to the outflow opening 8 and has a closed circumferential wall 27. In the region of the inflow opening 7, the inner diffuser 26 can be connected to the motor flange 16 of the motor housing 17. For this purpose, the inner diffuser 26 in the connection region with the motor flange 16 in the
  • the air guide portion 29 has, starting from the annular
  • Opening surface of the mecanical portion 28th and A 2 i is the opening area of the inner diffuser at its end adjacent to the protective grille 36.
  • the Heilleitabites 29 has rounded corners 32. In these corners 32 Anschlußdome 33 are provided with screw holes.
  • the inner diffuser 26 is dimensioned such that the motor housing 17 of the electric motor 9 can be accommodated in its interior. To attach the inner diffuser 26 to the motor flange 16, the inner diffuser 26 at the motor flange 16 facing the end of the
  • annular portion 28 preferably radially inwardly facing
  • screws are attached.
  • holes 60 are provided in the mounting flange, through which the fastening means extend.
  • stiffening portions 35 are stiffening portions 35 in the angular range between the
  • Attachment tabs 34 and the inner diffuser 26 integrally formed.
  • Protective grid 36 is arranged, which is connected with its outer peripheral edge 37 with the outer diffuser 6 in the edge region of its discharge opening 8. This can be a screw connection.
  • the protective grid 36 is formed from individual grid wires 38 which are arranged in a crosswise manner so as to form quadrangular, preferably square meshes 39.
  • the outer diffuser 6 has, in its peripheral region encompassing the discharge opening 8, recesses 41 which are adapted to the contour of the grid wires 38, so that the grid wires 38 are received in these recesses 41.
  • the guard 36 has radially inwardly projecting mounting tabs, which with on the inside of the
  • Outer diffuser 6 trained attachment lugs 42 cooperate and are connected by screws, which are screwed into the mounting lugs 42, with the outer diffuser 6.
  • the inner diffuser 26 preferably has a cover plate 43, which on the protective grid 36 on its in
  • connection domes 33 serve in the corners 32 of the inner diffuser 26, in which the screws are screwed through the end cover 43 into the connection domes 33.
  • this likewise has recesses 44 which are adapted to the shape and size of the grid wires 38.
  • the inner diffuser 26 is in the region of its
  • Ring section 28 in particular in the diffuser interior projecting bulges 46 has. Through the channels formed by the bulges 46 extend the spokes of the struts 14 in the assembled state, so that the outer wall portion of the inner diffuser 26 is not interrupted by the struts 14, but also forms a closed wall surface in this area.
  • a diffuser unit according to the invention consisting of the outer diffuser 6 and the inner diffuser 26 including the protective grid 36 and the end cover 13 may expediently in its preassembled state with the fan unit consisting of fan 1, the wall ring 2 and the supporting star formed from the struts 14 and the annular flange 14a be connected by plugging and screwing.
  • the screwing is advantageously carried out as described for Fig. 4, wherein the outer diffuser 6 z. B. is screwed with eight screws 22.
  • the plug connection takes place between the inner diffuser 26 and the supporting star in the region of the annular flange 14a.
  • Ring flange 14 a are fixed, with which in particular a non-positive or a frictional connection between the annular flange 14a and the inner diffuser 26 is made.
  • These latching connectors 50 are preferably formed as snap hooks, see Fig. 9.
  • These snap hooks comprise a cylindrical mounting portion 51, which preferably has an external thread 52, with which it is screwed into a threaded bore in the annular flange 14a.
  • the attachment portion 51 has a central longitudinal axis XX. In the axial direction of the longitudinal axis XX, a latching section 53 adjoins the attachment section 51. Between the attachment portion 51 and the
  • Locking portion 53 is in particular a plate-shaped stopper portion 54 is present, which limits the Einschraubweg the attachment portion 51.
  • the latching portion 53 comprises a central shaft 55 which terminates in particular in a frusto-conical tip 56, wherein the tip 56 forms the smaller frusto-conical surface with its end face. In the transition region between the tip 56 and the shaft 55 z.
  • Locking arms 57 molded. These latching arms 57 extend in the axial direction of the longitudinal axis XX on the attachment portion 51 and extend obliquely to the longitudinal axis XX that they form an angle ⁇ of 36 ° ⁇ 3 ° together in a plane passing through the longitudinal axis XX, vertical plane. At their free ends, the latching arms 57 each have an angle section 58 on the end, which is angled relative to the latching arms 57 such that it extends in the direction of the longitudinal axis XX. Here, a radial distance A between the ends of the latching arms 57 is greater than a radial distance B between the ends of the angle sections 58.
  • the latching connector 50 is preferably made as a plastic molding.
  • the abutment portion 54 has circumferentially advantageously two opposing flats 59, which can serve as a key surfaces for a wrench.
  • four latching connectors 50 are respectively screwed on the annular flange 4 a offset by 90 ° to each other.
  • Fig. 8 the screwed state of a latching connector 50 according to the invention can be seen.
  • Fig. 10 the mounting position of an internal diffuser 26 according to the invention of the diffuser unit is shown in detail where in particular the locking connection between the inner diffuser 26 and the Detent connector 50 can be seen.
  • the inner diffuser 26 has for this purpose in his
  • the angle sections 58 Preload on.
  • the angle sections 58 have here such an inclination to the longitudinal axis X-X that self-locking is given, so that the locking arms 57 can not be moved due to occurring force in the case of operation from the mounting detent position. A release is only possible by a manual
  • Rastverbinders 50 also on an invention, in particular for
  • FIG. 6 a further embodiment of a housing according to the invention is shown in partial view.
  • the wall ring 2 protrudes with his
  • an axial gap between these two parts 47 formed can enter through the air from the outside into the interior of the outer diffuser 6.
  • the air entering through the axial gap 47 flows parallel to the air conveyed in the diffuser interior, so that there is no flow running transversely to the conveyed air, which could result in disturbing turbulences.
  • the embodiment of the housing according to the invention makes it possible for the outer diffuser 6, the inner diffuser 26, the protective grid 36 and the struts 14 to be prefabricated with the axial fan 1 consisting of electric motor 9 and impeller 1 1 as a structural unit , This unit can then be fixed on site with an already preassembled wall ring 2.
  • the invention is not limited to the illustrated and described embodiments, but also includes all the same in the context of the invention embodiments. Furthermore, the invention has hitherto not been limited to the feature combinations defined in the claims, but may also be defined by any other combination of specific features of all individual features disclosed overall. This means that in principle virtually every individual feature of the independent claims can be omitted or replaced by at least one individual feature disclosed elsewhere in the application. In this respect, the claims are to be understood merely as a first formulation attempt for an invention.

Landscapes

  • 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)
  • Jet Pumps And Other Pumps (AREA)

Abstract

L'invention concerne un carter pour un ventilateur ou un aérateur, en particulier un ventilateur axial, comprenant un anneau mural (2) présentant une section de tuyère d'entrée (3), et un diffuseur extérieur (6), de forme annulaire, relié côté sortie, avec l'anneau mural (2), présentant une ouverture d'entrée (7) et une ouverture de sortie (8), ainsi qu'un support destiné à un moteur électrique (9) du ventilateur et qui est disposé dans l'espace intérieur du carter. Le diffuseur extérieur (6) est formé d'au moins deux sections annulaires partielles qui sont reliées, par des moyens de liaison mécaniques, à sa surface circonférentielle extérieure. Le support est formé par plusieurs entretoises (14) qui peuvent être fixées dans la région marginale de son ouverture d'entrée (7), à distance sur la périphérie, pouvant être fixées, par une extrémité, à une surface circonférentielle intérieure, du diffuseur extérieur (6), lesdites entretoises pouvant être montées, par leur autre extrémité, à un flasque moteur (16) d'une carcasse (17) du moteur électrique (9).
EP13717754.9A 2012-10-08 2013-04-12 Boîtier pour un ventilateur axial Active EP2904270B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13717754.9A EP2904270B1 (fr) 2012-10-08 2013-04-12 Boîtier pour un ventilateur axial

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP12187622.1A EP2716915B1 (fr) 2012-10-08 2012-10-08 Boîtier pour un ventilateur axial
EP13717754.9A EP2904270B1 (fr) 2012-10-08 2013-04-12 Boîtier pour un ventilateur axial
PCT/EP2013/057667 WO2014056630A1 (fr) 2012-10-08 2013-04-12 Carter pour un ventilateur axial

Publications (2)

Publication Number Publication Date
EP2904270A1 true EP2904270A1 (fr) 2015-08-12
EP2904270B1 EP2904270B1 (fr) 2019-02-27

Family

ID=47172289

Family Applications (2)

Application Number Title Priority Date Filing Date
EP12187622.1A Active EP2716915B1 (fr) 2012-10-08 2012-10-08 Boîtier pour un ventilateur axial
EP13717754.9A Active EP2904270B1 (fr) 2012-10-08 2013-04-12 Boîtier pour un ventilateur axial

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP12187622.1A Active EP2716915B1 (fr) 2012-10-08 2012-10-08 Boîtier pour un ventilateur axial

Country Status (7)

Country Link
US (1) US10107306B2 (fr)
EP (2) EP2716915B1 (fr)
CN (1) CN104755764B (fr)
ES (1) ES2537709T3 (fr)
HU (1) HUE026127T2 (fr)
PT (1) PT2716915E (fr)
WO (1) WO2014056630A1 (fr)

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USD818103S1 (en) * 2014-12-02 2018-05-15 Ebm-Papst Mulfingen Gmbh & Co. Kg Ventilator
DE102015201704A1 (de) * 2015-01-30 2016-08-04 Ebm-Papst Mulfingen Gmbh & Co. Kg Aufnahmesystem
CN104763658B (zh) * 2015-03-12 2017-04-26 福建亚伦电子电器科技有限公司 风机
DE102015205424A1 (de) * 2015-03-25 2016-09-29 Ebm-Papst Mulfingen Gmbh & Co. Kg Nachleitrad
CN105443446B (zh) * 2015-12-02 2018-04-13 珠海格力电器股份有限公司 电风扇机头锁紧结构和电风扇
CN105736480B (zh) * 2016-04-28 2020-06-02 深圳市大雅医疗技术有限公司 小型风机及其进风口降噪装置及采用该风机的呼吸机
DE102017130767A1 (de) * 2017-12-20 2019-06-27 Minebea Mitsumi Inc. Strömungsoptimierter axialer Lüfter
WO2019169812A1 (fr) * 2018-03-07 2019-09-12 广东美的制冷设备有限公司 Conduit d'air intermédiaire pour climatiseur, et climatiseur associé
CN108332399A (zh) * 2018-03-07 2018-07-27 广东美的制冷设备有限公司 空调的中间风道以及空调
DE102018004605B4 (de) * 2018-06-11 2022-09-01 Felix Müller Lüfteraufsatz zur Optimierung der Mischungsventilation

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Also Published As

Publication number Publication date
US10107306B2 (en) 2018-10-23
CN104755764A (zh) 2015-07-01
EP2904270B1 (fr) 2019-02-27
CN104755764B (zh) 2017-03-08
EP2716915A1 (fr) 2014-04-09
EP2716915B1 (fr) 2015-03-18
PT2716915E (pt) 2015-07-07
US20150267716A1 (en) 2015-09-24
WO2014056630A1 (fr) 2014-04-17
HUE026127T2 (hu) 2016-05-30
ES2537709T3 (es) 2015-06-11

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