EP3592985B1 - Kit de pièces et méthode pour produire une soufflante radiale - Google Patents

Kit de pièces et méthode pour produire une soufflante radiale Download PDF

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Publication number
EP3592985B1
EP3592985B1 EP18769301.5A EP18769301A EP3592985B1 EP 3592985 B1 EP3592985 B1 EP 3592985B1 EP 18769301 A EP18769301 A EP 18769301A EP 3592985 B1 EP3592985 B1 EP 3592985B1
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EP
European Patent Office
Prior art keywords
fan
housing part
fan wheel
axis
parts 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.)
Active
Application number
EP18769301.5A
Other languages
German (de)
English (en)
Other versions
EP3592985A1 (fr
Inventor
Wolfgang Laufer
Peter Ragg
Arno Karwath
Francisco Rojo
Raul ROSAS
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 St Georgen GmbH and Co KG
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Ebm Papst St Georgen GmbH and Co KG
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Publication of EP3592985A1 publication Critical patent/EP3592985A1/fr
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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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • 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
    • F04D29/08—Sealings
    • F04D29/16—Sealings between pressure and suction sides
    • F04D29/161—Sealings between pressure and suction sides especially adapted for elastic fluid pumps
    • F04D29/162—Sealings between pressure and suction sides especially adapted for elastic fluid pumps of a centrifugal flow wheel
    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/30—Vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • 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
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • 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
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/626—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
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • 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
    • F05D2230/00—Manufacture
    • F05D2230/60—Assembly methods
    • 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
    • F05D2230/00—Manufacture
    • F05D2230/60—Assembly methods
    • F05D2230/61—Assembly methods using limited numbers of standard modules which can be adapted by machining
    • 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
    • F05D2230/00—Manufacture
    • F05D2230/80—Repairing, retrofitting or upgrading methods
    • 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
    • F05D2240/00—Components
    • F05D2240/55—Seals

Definitions

  • the present invention relates to a set of parts for the production of a radial fan and its use.
  • a centrifugal fan typically has a housing with a chamber in which a fan rotates about an axis, an inlet opening adjacent to the axis, and an outlet opening located at the periphery of the chamber.
  • the relationship between the speed of the fan wheel, the pressure difference between the inlet and outlet openings and the volume flow depends on the geometry of the fan wheel and the chamber containing it and is a characteristic of every fan model. The requirements for this connection vary depending on the application for which the radial fan is intended. If a fan is used for cooling purposes, for example, then its volume flow should vary as little as possible with the pressure difference in order to be able to maintain a sufficient cooling air flow even under unfavorable conditions, e.g. when the cross section of the cooling air path is restricted.
  • a fan is used to ventilate a patient, then a strong dependence of the volume flow on the pressure difference is desired in order, on the one hand, to be able to provide a high volume flow when the patient breathes in, but on the other hand not to hinder his exhalation due to a high counter pressure .
  • the aim of the present invention is to create a set of parts and a method with which fans can be provided cost-effectively with a relationship between pressure difference and volume flow that is adapted to a specific application.
  • the fan wheel is specifically optimized in a suitable manner with regard to a desired relationship between pressure and volume flow and is required in several versions in order to be able to represent different relationships, an application-specific modification of the housing parts can be dispensed with.
  • Cost advantages arise, on the one hand, from the fact that the non-application-specific parts can be provided cost-effectively in large quantities, but also from the fact that the application-specific fan wheels are necessarily smaller than the housing parts that delimit the wheel chamber that accommodates them, and therefore with small-format, relatively simple ones and accordingly cost-effective tools can be manufactured.
  • the advantage of simple production comes into play particularly when the fan wheels each have a base plate and the base plate have blade blades that protrude in the axial direction with free edges facing away from the base plate, since these can generally be formed with only two tool parts that can move relative to one another in the direction of the axis, while for the production of the housing parts, especially if they have locking means that interact with one another, also in Tool parts that move in the radial direction are required.
  • the inlet opening is provided in the complementary housing part, then when one of the fan wheels is mounted in the wheel chamber, its base plate should face the base housing part and the blades should face the complementary housing part (3).
  • the outlet should lie approximately in the plane of the fan wheel and is therefore expediently delimited on the one hand by the base housing part and on the other hand by the complementary housing part.
  • interfaces for attachment to a motor shaft can be, for example, passages with an identical, non-round cross section into which the shaft can be inserted in a torque-locking manner, or flanges spaced along the axis on both sides of a passage, which, for example, allow the fan wheel to be clamped between a shoulder of the shaft and a screwed-on nut.
  • the complementary housing part has a structure that extends concentrically around the axis on the wall delimiting the wheel chamber on, and the fan wheels are provided with contours on the free edges of their blades, which form a labyrinth seal with the concentric structure.
  • the concentric structure can be a circumferential groove, which is opposite to projections on the edges of the blades, or the concentric structure can have a projection extending around the axis, which is opposite to recesses in the free edges.
  • the first and second fan wheels differ in the number and/or the length of the blades.
  • Other features such as the shape of the base plate, the axial extent of the blades, their wall thickness or the course of their free edges, can remain the same from one fan wheel to the other within the limits set by the manufacturing accuracy.
  • the effort for construction and for the production of molds for the various fan wheels can be limited by the fact that the shape of the second fan wheel is derived from that of the first fan wheel by adding at least one blade, i.e. that the first fan wheel is used in the production of the second The shape used would fit in and fill it apart from the added blade.
  • the radius of an end near the axis of the added blade should be larger than that of an end near the axis of at least one blade of the first fan wheel.
  • each fan wheel necessarily have an inner edge oriented transversely to the air flow direction, past which the blown air enters a channel between two air blades.
  • this distance can be used for Blade wheels of a single fan wheel can be different.
  • the set of parts includes two fan wheels, which are separated by the distance between the ones closest to their axis distinguish inner edge from the axis.
  • the inner edge closest to the axis of at least one fan wheel should lie at least partially within a cylinder that is concentric to the axis and whose diameter corresponds to the diameter of the inlet opening.
  • the fan wheel is preferably mounted on the base housing part, opposite the inlet opening of the complementary housing part.
  • Installation space for a motor driving the fan wheel is also expediently provided on the base housing part.
  • Fig. 1 shows an exploded view of a basic housing part 1, a fan wheel 2 and a complementary housing part 3 of a radial fan.
  • the cutting plane of the Fig. 1 runs along an axis of rotation 4 of the fan wheel 2.
  • the basic housing part 1 comprises a base plate 5, an outer wall 6 and an elastic buffer ring 7, via which the base plate 5 is connected to the outer wall 6 to form an outer cup.
  • An electric motor 9 is accommodated concentrically in the outer cup, forming an annular cooling air channel 8, and is enclosed by an intermediate wall 11 supported on a shoulder 10 of the outer wall 6.
  • the electric motor 9 comprises a shaft 12, a rotor 13, a stator 14, a circuit board 15 which carries an inverter for supplying the stator 14, and a housing which encloses the mentioned components 12-15.
  • the housing comprises an inner cup 16 and a lid 17 which closes the inner cup 16 and through whose central opening the shaft 12 projects.
  • the intermediate wall 11 and the cover 17 exposed in an opening in the intermediate wall form a central plateau 18 around the axis of rotation 4.
  • An edge region of the intermediate wall 11 surrounding the plateau 18 springs back into the interior of the outer cup and, together with the outer wall 6, delimits a channel 19 , which extends around the axis of rotation 4 with a cross-section that gradually increases along the circumference of the cup.
  • the fan wheel 2 has a base plate 20 oriented transversely to the axis of rotation 4, the diameter of which is not larger than that of the plateau 18.
  • One side of the base plate 20 lies closely adjacent to the plateau 18 in the assembled state.
  • An axial passage 47 of the fan wheel 2 is provided to receive the end of the shaft 12.
  • the passage 47 is formed in a sleeve made of metal, in particular brass, onto which the base plate 20 and blades 21 of the fan wheel 2 are molded, and whose inner diameter is coordinated with the diameter of the shaft 12 so that the fan wheel 2 passes through Can be mounted on the shaft 12 by pressing.
  • Blade blades 21 protrude in the axial direction on a side of the base plate 20 facing away from the plateau 18. This side can be in the shape of a cone or a hyperboloid of revolution.
  • FIG. 2 The basic housing part 1 and the fan wheel 2 mounted on the shaft 12 can be seen in a top view. You can clearly see the channel 19, which, starting from a starting point 22, gradually widens, extends in a counterclockwise direction around the fan wheel 2 and merges into an outlet 23 branching off tangentially to the circumference of the fan wheel 2.
  • the blades 21 have the shape of ribs which extend spirally from an inner end 33 facing the axis of rotation 4 to the edge of the base plate 20.
  • the intermediate wall 11 has one or more openings 24 through which the channel 19 communicates with the cooling air duct 8 near the starting point 22. These openings 24 are in Fig. 2 covered by the fan wheel 2 and therefore shown with dashed lines. Another passage 25 between the channel 19 and the cooling air duct 8 is located at the outlet 23.
  • the rotation of the fan wheel 2 generates a higher pressure in front of the passage 25 than at the openings 24, so that air enters the cooling air duct 8 via the passage 25, absorbs waste heat from the motor 9 there and leaves the cooling air duct 8 again via the openings 24.
  • a radial wall 26 between the motor 9 and the outer wall 6 divides the cooling air channel 8 and forces the sucked in air to almost completely circle the motor 9 on the way from the passage 25 to the openings 24.
  • the complementary housing part 3 has an end wall 28 which extends around an inlet opening 27 about the axis of rotation 4, the funnel-shaped inner surface 29 of which, in the assembled state, lies opposite the free edges 30 of the air blades 21 facing away from the base plate 20 at a short distance.
  • the funnel-shaped inner surface 29 extends radially beyond the edge of the base plate 20 and meets an inside of the outer wall 6.
  • the end wall 28 thus delimits a wheel chamber 31 in the fully assembled fan, in which the fan wheel 2 rotates, as well as, together with the Channel 19, a blown air channel 32 extending around the wheel chamber 31, in which the rotation of the fan wheel 2 generates an excess pressure.
  • Fig. 3 shows a section along the axis of rotation 4 and a radius through the complementary housing part 3 and a rotating body obtained by rotating the fan wheel 2 about the axis of rotation 4.
  • edges 30, starting from the inner end 33 first run steeply towards the end wall 28 along an inner edge 40 and then, beyond a vertex 41, along a large part of their length together with the inner surface 29 of the end wall 28, a gap 42 of essentially limit constant width.
  • the inner surface 29 is divided by a flat groove 43 into an inner and an outer section 44, 45, both of which are convexly curved.
  • the channel 43 is opposite projections 46 on the edges 30 of the blades 21. If a high pressure difference between outlet 23 and inlet opening 27 drives a backflow of air along the gap 42 to the inlet opening 27, then this tends to move the channel 43 in a direction tangential to both sections 44, 45 (in Fig. 3 indicated by a thin dashed line) and comes under the influence of the blades 21. This means that a high pressure difference between the outlet 23 and the inlet opening 27 can be maintained at a given speed of the fan wheel 2.
  • annular flange 34 extends around the inner surface 29 perpendicular to the axis of rotation 4.
  • a flange 35 lies opposite it on an upper edge of the outer wall 6.
  • Both flanges 34, 35 each have an annular groove 36.
  • a sealing ring 37 which engages in both annular grooves 36 in the assembled state, seals the blown air channel 32 radially to the outside.
  • brackets 38 projecting over the flange 34 are distributed. These are intended to accommodate projections 39 (see Fig. 1) when assembling the housing. Fig. 2 ) to be snapped onto the outer wall 6 of the basic housing part 1 and thus permanently connect the housing parts 1, 3 to one another.
  • brackets 38 and projections 39 With a foil hinge through which the two housing parts can be folded on top of each other after attaching the fan wheel 2.
  • Fig. 4 shows the fan wheel 2 of the Fig. 1 and 2 once again on its own, to make it clearer how this fan wheel 2 differs from others Fig. 5-7 shown fan wheels 2, 2", 2'" of the parts set according to the invention differs and in which the fan wheels are similar.
  • the diameter of the base plate 20 and the shape of the passage 47 receiving the shaft 12 are identical for all fan wheels, and preferably also the curvature of the side of the base plate 20 carrying the blades 21.
  • the blades 21 of the fan wheel 2 are also on the fan wheels 2 ', 2 " the 5 and 6
  • the number, wall thickness and course of the edge 30 are identical.
  • Fig. 5 There is a blade in every space between two blades 21, in the case of the fan wheel 2".
  • Fig. 6 two additional blades 21' each inserted.
  • the additional blades 21' double or triple the frequency with which an outer end of a blade sweeps past the starting point 22 and causes turbulence there, compared to the fan wheel 2.
  • the additional blades 21' block the space that the turbulence needs. to be able to spread and thereby dampen them strongly.
  • a dampening of the flow noise of the fan wheel and on the other hand, an increase in frequency, which shifts part of the operating noise spectrum out of the audible frequency range when the fan speed is suitable. Both contribute to the fact that the fan wheels 2 ', 2" have reduced operating noise compared to the fan wheel 2.
  • the additional blades 21' narrow the passage cross section of the wheel chamber 31 and thereby lead to higher flow losses and lower efficiency. Therefore, a user will generally select the fan wheel 2 for commercial applications in already noisy environments where operating costs are low are an important criterion, whereas the paddle wheels 2', 2" are preferred for applications in the private sector where a strong operating noise is clearly noticeable.
  • the inner ends 33 'of the additional blades 21' are arranged at a greater distance from the axis 4 than the inner ends 33 of the blades 21. While the inner edges 40 of the blades 21 are largely within the radius r the inlet opening 27, corresponding edges 40 'of the additional blades 21' lie outside.
  • the fan wheel 2'" the Fig. 7 is very similar to the fan wheel 2' Fig. 5 .
  • the number of blades is the same on both; The difference between the two is that in the case of the fan wheel 2'", the inner ends 33 of all blades 21' lie beyond the radius r of the inlet opening 27.
  • Fig. 8 illustrates the influence of these design differences using the pressure-volume flow characteristics of the fan wheels 2, 2" and 2"'.
  • the characteristics are shown in arbitrary units, as the values differ in individual cases depending on the dimensions of the fan wheels and the speed; However, they are recorded for fan wheels with the same dimensions at the same speed and are therefore comparable.
  • the strongest dependence of the volume flow V on the pressure difference ⁇ p is with fan wheel 2. This is therefore well suited to infer the volume flow from the easily and reliably measurable pressure increase and to generate a predetermined volume flow by controlling the speed depending on the pressure.
  • the 2" fan wheel achieves the highest values of volume flow and pressure in comparison and is therefore suitable for building a fan with high power density.
  • a fan with this fan wheel can limit pressure fluctuations in an application with fluctuating volume flow, for example in a
  • the ventilator prevents strong increases in pressure if the volume flow is interrupted during the patient's exhalation phase, thus enabling calm inhalation afterwards.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (13)

  1. Kit de pièces pour soufflante radiale, comportant une première roue de soufflante (2), une partie de boîtier de base (1) et une partie de boîtier complémentaire (3), qui peuvent être assemblées pour former une chambre de roue (31) entourant la roue de soufflante (2) et présentant une ouverture d'entrée (27) et une sortie (23), dans lequel au moins une seconde roue de soufflante (2', 2", ...) est prévue, dont la forme diffère de celle de la première roue de soufflante (2) et qui peut être montée dans la chambre de roue (31) à la place de la première roue de soufflante (2) et de manière à pouvoir tourner autour d'un axe (4),
    caractérisé en ce que
    la partie de boîtier complémentaire (3) présente, sur une paroi (28) délimitant la chambre de roue (31), une structure (43-45) s'étendant concentriquement autour de l'axe (4), en ce que les roues de soufflante (2, 2', 2", ...) présentent des contours (46) sur les bords libres (30) de leurs pales (21, 21'), qui forment un joint labyrinthe avec la structure concentrique (43-45), et en ce que la première et la seconde roue de soufflante (2, 2', 2", ...) se distinguent par le nombre et/ou la longueur des pales (21, 21').
  2. Kit de pièces selon la revendication 1, caractérisé en ce que les roues de soufflante (2, 2', 2", ...) ont une plaque de base (20) et des pales (21) dépassant de la plaque de base (20) dans la direction axiale avec des bords libres (30) tournés à l'opposé de la plaque de base (20).
  3. Kit de pièces selon la revendication 1 ou 2, caractérisé en ce que l'ouverture d'entrée (27) est prévue dans la partie de boîtier complémentaire (3) et qu'à l'état assemblé l'une des roues de soufflante (2, 2', 2", ...), dont la plaque de base (20) est tournée vers la partie de boîtier de base (1), et les pales (21) sont tournées vers la partie de boîtier complémentaire (3).
  4. Kit de pièces selon l'une quelconque des revendications précédentes, caractérisé en ce que la sortie (23) est délimitée par la partie de boîtier de base (1) et la partie de boîtier complémentaire (3).
  5. Kit de pièces selon l'une quelconque des revendications précédentes, caractérisé en ce que les roues de soufflante (2, 2', 2", ...) présentent des interfaces identiques (47) de fixation sur un arbre (12) d'un moteur (9).
  6. Kit de pièces selon l'une des revendications précédentes, caractérisé en ce que la forme de la seconde roue de soufflante (2', 2", ...) est dérivée de celle de la première roue de soufflante (2) en ajoutant au moins une pale (21').
  7. Kit de pièces selon la revendication 6, caractérisé en ce que le rayon d'une extrémité (33') proche de l'axe de la pale ajoutée (21') est plus grand que celui d'une extrémité (33) proche de l'axe d'au moins une pale (21) de la première roue de soufflante (2).
  8. Kit de pièces selon l'une quelconque des revendications précédentes, caractérisé en ce que les pales (21, 21') de chaque roue de soufflante (2, 2', 2", ...) présentent un bord intérieur (40, 40') orienté transversalement à la direction du flux d'air, et en ce que le kit de pièces comprend deux roues de soufflante (2, 2‴), qui se distinguent par la distance entre leur bord intérieur (40, 40') le plus proche de l'axe et l'axe (4).
  9. Kit de pièces selon la revendication 8, caractérisé en ce que dans le cas d'au moins une roue de soufflante (2, 2', 2"), le bord intérieur (40) le plus proche de l'axe se trouve au moins partiellement à l'intérieur d'un cylindre concentrique à l'axe (4) dont le diamètre correspond au diamètre de l'ouverture d'entrée (27).
  10. Kit de pièces selon la revendication 8 ou 9, caractérisé en ce que, dans le cas d'au moins une roue de soufflante (2‴), le bord intérieur (40') le plus proche de l'axe se trouve à l'extérieur d'un cylindre concentrique à l'axe (4), dont le diamètre correspond au diamètre de l'ouverture d'entrée (27).
  11. Kit de pièces selon l'une quelconque des revendications précédentes, caractérisé en ce que la roue de soufflante (2, 2', 2", ...) est montée sur la partie de boîtier de base (1).
  12. Kit de pièces selon l'une des revendications précédentes, caractérisé en ce qu'un espace de montage pour un moteur (9) est prévu sur la partie de boîtier de base (1).
  13. Procédé de fabrication d'une soufflante radiale comportant les étapes consistant à fournir un kit de pièces selon l'une des revendications précédentes, à sélectionner l'une des roues de soufflante (2, 2', 2", ...) du kit de pièces ; et assembler la roue de soufflante sélectionnée avec la partie de boîtier de base (1) et la partie de boîtier complémentaire (3).
EP18769301.5A 2017-09-21 2018-09-04 Kit de pièces et méthode pour produire une soufflante radiale Active EP3592985B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017008855.1A DE102017008855A1 (de) 2017-09-21 2017-09-21 Teilesatz und Verfahren für die Fertigung eines Radiallüfters
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DE102020118650A1 (de) * 2020-07-15 2022-01-20 Ventilatorenfabrik Oelde, Gesellschaft mit beschränkter Haftung Radialventilator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69633714T2 (de) * 1995-08-28 2005-03-10 Toto Ltd., Kita-Kyushu Verfahren zum entwurf für ein mehrschaufel-radiallüfterrad und mehrschaufel-radiallüfterrad
CN103486085A (zh) * 2012-06-12 2014-01-01 富瑞精密组件（昆山）有限公司 离心风扇

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4902199A (en) * 1986-10-14 1990-02-20 Xerox Corporation Universal blower
DE4115485A1 (de) * 1991-05-11 1992-11-12 Mulfingen Elektrobau Ebm Antriebseinheit fuer doppelluefter
US5893705A (en) * 1996-12-13 1999-04-13 General Electric Company Integrated motor and blower apparatus having two back-to-back coupled rotors
US6589013B2 (en) * 2001-02-23 2003-07-08 Macro-Micro Devices, Inc. Fluid flow controller
DE20309621U1 (de) * 2003-03-24 2003-09-18 Motoren Ventilatoren Gmbh Radialgebläse
TWI235204B (en) * 2003-10-31 2005-07-01 Delta Electronics Inc Centrifugal fan and its housing
JP5005181B2 (ja) * 2005-04-01 2012-08-22 日本電産サーボ株式会社 遠心ファン
TWI299072B (en) * 2005-06-02 2008-07-21 Delta Electronics Inc Centrifugal fan
US7591633B2 (en) * 2005-09-13 2009-09-22 Trane International, Inc. Centrifugal blower for air handling equipment
US8427020B2 (en) * 2006-04-20 2013-04-23 Carefusion 212, Llc Blower assembly with integral injection molded suspension mount
TWI465184B (zh) * 2010-12-20 2014-12-11 Sunonwealth Electr Mach Ind Co 風扇模組
CN104251229A (zh) * 2013-06-28 2014-12-31 苏州宝时得电动工具有限公司 离心式叶轮及包括该离心式叶轮的吹吸装置
DE102016001484A1 (de) * 2016-02-11 2017-08-17 Ebm-Papst St. Georgen Gmbh & Co. Kg Lüftereinheit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69633714T2 (de) * 1995-08-28 2005-03-10 Toto Ltd., Kita-Kyushu Verfahren zum entwurf für ein mehrschaufel-radiallüfterrad und mehrschaufel-radiallüfterrad
CN103486085A (zh) * 2012-06-12 2014-01-01 富瑞精密组件（昆山）有限公司 离心风扇

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EP3592985A1 (fr) 2020-01-15
WO2019057482A1 (fr) 2019-03-28
US20200182255A1 (en) 2020-06-11
DE202018105036U1 (de) 2018-10-24
CN208793265U (zh) 2019-04-26
US11359640B2 (en) 2022-06-14

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