EP4278093A1 - Ventilateur doté d'un diffuseur étagé - Google Patents

Ventilateur doté d'un diffuseur étagé

Info

Publication number
EP4278093A1
EP4278093A1 EP22850712.5A EP22850712A EP4278093A1 EP 4278093 A1 EP4278093 A1 EP 4278093A1 EP 22850712 A EP22850712 A EP 22850712A EP 4278093 A1 EP4278093 A1 EP 4278093A1
Authority
EP
European Patent Office
Prior art keywords
impeller
housing
flow
fan
cover ring
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.)
Pending
Application number
EP22850712.5A
Other languages
German (de)
English (en)
Inventor
Frieder Loercher
Andreas Gross
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.)
Ziehl Abegg SE
Original Assignee
Ziehl Abegg 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 Ziehl Abegg SE filed Critical Ziehl Abegg SE
Publication of EP4278093A1 publication Critical patent/EP4278093A1/fr
Pending legal-status Critical Current

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
    • F04D29/26—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
    • F04D29/326—Rotors specially for elastic fluids for axial flow pumps for axial flow fans comprising a rotating shroud
    • 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
    • F04D17/06—Helico-centrifugal 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
    • 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
    • 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
    • F04D29/164—Sealings between pressure and suction sides especially adapted for elastic fluid pumps of an axial 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
    • 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
    • F04D29/542—Bladed diffusers
    • 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
    • F04D29/547—Ducts having a special shape in order to influence fluid flow
    • 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
    • F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
    • F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
    • F04D29/684—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps by fluid injection
    • 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 fan, in particular an axial or diagonal fan.
  • the fan comprises a housing and an impeller arranged therein which is driven in rotation by an electric motor.
  • the impeller has blades that extend between a hub ring and a shroud.
  • the present invention is based on the object of essentially eliminating, or at least reducing, the disadvantages or problems occurring in the prior art.
  • the main aim is to provide particularly quiet and efficient fans that are particularly insensitive to increased pressure in terms of noise generation and pressure increase.
  • the fans according to the invention should differ from competitive products.
  • a so-called jump diffuser is formed in the generic fan in the direction of flow after the impeller and after the exit from the area of the cover ring in the form of a sudden widening of the flow cross section.
  • the fan according to the invention preferably has a cylindrical housing, in which case the jump diffuser can be implemented after the flow exits from the cover ring.
  • the contour of the cover ring interacts with the housing contour both with regard to the main flow and with regard to the secondary flow in the fan, with an imaginary outflow-side extension of the cover ring contour not intersecting the housing inner contour.
  • the main flow flows into the impeller through an inlet nozzle.
  • the housing is flowed through via inner and outer flow areas.
  • a secondary flow flows back as a partial flow of the air exiting the impeller between the cover ring and the contour of the housing and re-enters the area of the impeller via a radial gap between the inlet nozzle and the cover ring.
  • the secondary flow is a proportionately small partial flow of the air exiting the impeller, which can influence the main flow in an area close to the circumferential cover ring in such a way that it stabilizes the flow there.
  • the secondary flow is regularly subject to a strong twist, since it is influenced by the rotational movement of the impeller.
  • a guide device can be arranged downstream of the impeller in the direction of flow, which device can have additional load-bearing properties.
  • the tracking device influences the flow in the area of the jump diffuser.
  • the vane and jump diffuser cooperate to have an effect on the secondary flow which causes the main flow to "suck" onto the inner contour of the housing.
  • the flow in the region of the jump diffuser can be influenced in a targeted manner by designing an intermediate ring of the guide device, with the intermediate ring advantageously being oriented less parallel to the axis and more at an angle of incidence with respect to the axial direction. This results in a low-noise fan with high efficiency due to pressure recovery.
  • a supporting guide device can be provided as an integral part of the housing, the housing preferably being made of plastic injection moulding.
  • Such manufacture of the housing is of fundamental advantage, in particular when it comes to a lightweight construction and inexpensive manufacture of the housing.
  • the support function for the motor and impeller can be taken over by a special suspension, which advantageously consists of steel or another metallic material.
  • a special suspension which advantageously consists of steel or another metallic material.
  • the hub ring of the impeller can have a large-area opening to the rotor of the motor, as a result of which the cooling of the motor is particularly beneficial.
  • the ratio of the outlet diameter of the housing should not fall below a particular minimum at its outflow-side edge to the inner outlet diameter of the cover ring, in other words, the ratio should be >1.05. This characterizes the widening of the cross section of the flow channel after the impeller.
  • the jump diffuser for the main flow results after the impeller.
  • the cover ring of the impeller can run approximately parallel to the impeller axis or at a small angle of incidence to the impeller axis over an area.
  • the hub ring of the impeller can have a distinct character with an increasing diameter in the direction of flow. This also favors the flow.
  • the outlet diameter of the inlet nozzle is slightly smaller than the outlet diameter on the cover ring of the impeller. This configuration is preferably based on a ratio of the outlet diameter of the housing to the outlet diameter of the inlet nozzle >1.05.
  • openings can be formed in the housing, which flow connect the area assigned to the secondary flow between the inlet nozzle or the cover ring of the impeller and the housing with an area outside the housing.
  • FIG. 2 shows the fan from FIG. 1 in a perspective view seen from the inflow side
  • 3 is a perspective view of the fan from FIGS. 1 and 2 seen from the outflow side
  • FIG. 5 is a perspective view of a further embodiment of a fan according to the invention seen from the outflow side and in section on a plane through the fan axis, with openings being provided in the housing,
  • FIG. 6 shows a further embodiment of a fan according to the invention in a perspective view seen from the outflow side and in section on a plane through the fan axis, with swirl correction elements being provided on the housing,
  • FIG. 7 shows a perspective view of a further embodiment of a fan according to the invention, seen from the outflow side and in section on a plane through the fan axis, with swirl correction elements on the housing extending axially beyond the impeller,
  • FIGS. 1 to 4 shows the fan from FIGS. 1 to 4 in a plane view seen from the outflow side
  • FIG. 9 shows a further fan according to the invention in a plan view seen from the outflow side, in which the strut elements have an alternating direction of inclination
  • FIG. 10 shows a further embodiment of a fan according to the invention in a perspective view from the outflow side and in section on a plane through the fan axis, with no lines t driving is provided and a suspension takes over the support function, and
  • FIG. 11 in a perspective view seen from the outflow side and in section on a plane through the fan axis, a further embodiment of a fan according to the invention, with an inner guide device being provided and a suspension taking on the carrying function.
  • Fig. 1 shows a perspective view of a fan 1 according to the invention with a housing 2 seen from the outflow side and in a section on a plane through the fan axis Essentially consists of a hub ring 4, an intermediate ring 5, guide vanes 3 extending in between, and strut vanes 3a, which extend between the intermediate ring 5 and the inner contour 11 of the housing 2.
  • the impeller 19 consists essentially of a hub ring 21, a circumferential cover ring 16 and vanes 22 extending in between.
  • the impeller 22 is attached to a hub ring 21 by means of fastening provisions 30 ( Figure 2) on the rotor 35 of a motor 34, here advantageously an external rotor motor .
  • the impeller 19, driven by the motor 34 rotates about the fan axis and thereby conveys air or another conveying medium from an inflow side to an outflow side (roughly from left to right in the view of FIG. 1).
  • the inlet nozzle 9 On the inflow side, there is an inlet nozzle 9 which, with its outflow end 37 , lies radially inside the cover ring 16 of the impeller 19 , a radial gap being formed between the inlet nozzle 9 and the cover ring 16 .
  • the inlet nozzle 9 is attached to the housing 2 and, depending on the embodiment, can advantageously also be designed as an integral component with the housing 2 .
  • the guide device 15 is arranged downstream of the impeller 19 within the housing 2 , with an air duct (outer flow area) 6 and thus an air flow being created between the intermediate ring 5 of the guide device 15 and the inner contour 11 of the housing 2 . Part of the air flowing out of the impeller flows through the air duct 6 Air.
  • the inner flow area 7 is interspersed with guide vanes/guide elements 3 (in the exemplary embodiment 17 pieces, advantageously 9-23 pieces), which stabilize the near-axis, twisted flow exiting the impeller 19 and flowing into the guide device by reducing the twist in the flow and also reduce backflow in the hub area. This increases the efficiency.
  • the hub ring 4 and the intermediate ring 5 of the guide device 15 run essentially over the entire circumference around the axis.
  • the hub ring 4 surrounds an inner receiving area 8 in which, for example, the drive motor 34 of the fan 1 with its stator 36 can be arranged.
  • the receiving area 8 is not flowed through or advantageously has a low air volume flow (0.1%-2% of the total air volume flow) flowing through it in order to be able to transport away the waste heat produced by the engine.
  • the flow through the receiving area 8 can also take place counter to the main conveying direction, in particular if it is driven by a pressure difference between the outflow and inflow sides.
  • the outer flow-through region 6 has a smaller number (three to eight) of strut elements 3a, which in particular assume the static connection of the intermediate ring 5 to the housing 2 . Due to the small number of strut elements 3a, little additional noise is caused in this area as a result of the interaction of the flow emerging from the impeller and strut elements 3a.
  • the strut elements can be arranged at the maximum distance from the impeller, for example close to the outlet end of the housing or relatively close to the downstream end of the intermediate ring of the guide device.
  • the housing 2 together with the strut wing 3a, the guide device 15 with the intermediate ring 5, the guide vanes 3 and the hub ring 4 can advantageously be made in one piece using plastic injection moulding.
  • the inlet nozzle 9 is a separate part that is attached to the housing 2 after the impeller 19 has been installed.
  • the inlet nozzle 9 can also be integrated in one piece on the housing.
  • the guide device 15 together with the strut wing 3a is or are a separate part or parts which are attached to the housing 2 when the impeller 19 is placed therein.
  • the flow cross-section expands abruptly. In this respect, a jump diffuser after the impeller 19 is formed. Due to the cross-sectional enlargement, the flow rate is reduced and an additional static pressure is built up, whereby the degree of reaction and thus the static efficiency is increased. Due to the lower velocities, the generation of noise in downstream components around which the air flows is reduced, for example in the downstream guide device 15 with its guide elements 3, possibly strut elements 3a and intermediate ring 5 or also in the case of suspensions.
  • a fan is realistic that is low-noise and has a high level of efficiency, namely as a result of the pressure recovery through the jump diffuser with the associated reduction in the flow rate.
  • a return flow in the hub area is also greatly reduced by the guide device 15 .
  • low noise generation is ensured by a small number of strut wings 3a.
  • the inner contour 11 of the housing 2 can nevertheless be approximately in the shape of a cylinder jacket and does not have to have a conical contour, as is otherwise usual with diffusers. This can significantly simplify the manufacturability of the housing 2, in particular in plastic injection molding, but also in sheet metal construction.
  • Fig. 2 shows a perspective view of the fan 1 with the housing 2 according to the invention from Fig. 1 seen from the inflow side Air on the rotor 35 of the motor 34 provides cooling.
  • the wings 22 of the impeller 19 are opposite to the direction of rotation, which is clockwise here, sickled backwards. This means that the radially outer wing areas lag behind the radially inner ones in the direction of rotation. However, such an impeller can also be swept forward, depending on the required operating point.
  • inflow-side attachment provisions 24 for attaching the fan 1 to a ventilation system or device provided, for example by screws.
  • outflow-side attachment provisions 23 for attaching the fan 1 to an air-conditioning system or device, also here, for example, by means of screws.
  • Fig. 3 shows a perspective view of the fan 1 with the housing 2 according to the invention from Figs. 1 and 2, seen from the outflow side.
  • the stator 36 of the motor 35 is located within a receiving area 8 within the hub ring 4 the guide device 15 is arranged.
  • the guide device 15 has a large number, for example 13-23, of inner guide vanes 3, which suppress or at least reduce any backflow near the hub.
  • In the outer flow area 6 only a few strut wings 3a are arranged, for example 4-9.
  • the jump diffuser can also be recognized here by the distance between the trailing edge 32 of the peripheral ring 16 of the impeller 19 and the inner contour 11 of the housing 2.
  • Fig. 4 shows in a side view and in section on a plane through the axis the fan 1 and the housing 2 according to FIGS. 1, 2 and 3.
  • the jump diffuser which the housing 2 forms with the cover ring 16 of the impeller, can be well characterized.
  • DA 12 is the outlet diameter of the housing 2, i.e. the diameter of the housing 2 at its outflow edge 25.
  • DL 13 is the inner diameter of the circumferential ring 16 at its outflow edge 32.
  • DD 14 is the inner diameter of the inlet nozzle 9 on its outflow side Edge 37.
  • the ratio DA/DL>1.05 is advantageous, which characterizes the widening of the cross section of the flow channel after the impeller 19.
  • a jump diffuser for the main flow results after the impeller 19.
  • the impeller 19 has a cover ring 16 which, in the exemplary embodiment, runs approximately parallel to the fan axis over large areas or is only set at a small angle to it.
  • the hub ring 21 of the impeller 19 has a pronounced conical character with increasing diameter in flow direction.
  • On its outflow-side edge 32, the inner contour of the cover ring 16 has an angle of attack relative to the fan axis.
  • the geometric outflow direction 31 from the impeller 19 is therefore not axially parallel, but points slightly radially outwards in the direction of flow, approximately at an angle of 5° to 15° as seen in the plane section. This is advantageous for the way the special jump diffuser works.
  • the imaginary straight tangential extension of the cover ring inner contour 31 does not intersect the inner contour 11 of the housing 2 efficient mode of operation of the jump diffuser.
  • the outlet diameter DD 14 of the inlet nozzle 9 is only slightly smaller than the outlet diameter DL 13 on the shroud 16 of the impeller 19. In the case of impellers that are more diagonally shaped with more conically shaped shroud rings, DD 14 can also be significantly smaller than DL 13. In any case, DD 14 is pronounced overall smaller than the outlet diameter DA 12, DA / DD > 1.05 is particularly advantageous. This makes it possible, among other things, that the contour of the inlet nozzle 9 can be fitted in a radial area between the diameters DD 14 and DA 12 . As a result, the inner contour 11 of the housing 2 can be designed essentially cylindrical overall, and the inlet nozzle 9 is located radially inside it.
  • FIG 5 shows a further embodiment of a fan 1 according to the invention in a perspective view seen from the outflow side and in section on a plane through the fan axis, openings 17 being provided in the housing 2 .
  • the openings 17 connect the area assigned to the secondary flow between the inlet nozzle 9 and the housing 2 or between the cover ring 16 of the impeller 19 and the housing 2 with an area outside the housing.
  • the pressure level of the area outside of the housing 2 in the area of the openings 17 can correspond to an inflow side of the fan, to an outflow side or it can have an independent pressure level that is more or less decoupled from the fan 1 or its inflow side and outflow side.
  • FIG. 6 shows a further embodiment of a fan 1 according to the invention in a perspective view seen from the outflow side and in section on a plane through the fan axis, with twist correction elements 20 being formed on the housing 2 .
  • They are designed axially, for example, in an area of the inlet nozzle 9 and/or the cover ring 16 of the impeller 19 .
  • they cover the radial gap between the inlet nozzle 9 and the cover ring 16. They protrude radially inwards from the inner contour 11 of the housing 2.
  • similar elements can also be attached to the inlet nozzle 9 on the side facing the housing 2 .
  • the shape of the swirl correction elements 20 can be straight and parallel to the fan axis.
  • Fig. 7 a further embodiment of a fan 1 according to the invention is shown in a perspective view seen from the outflow side and in section on a plane through the fan axis, with relatively long swirl correction elements 20a on the housing 2 extending axially over the impeller 19 or its cover ring 16 extend out.
  • the twist correction elements 20a lead to a greater reduction in twist and can also have a positive influence on the main flow emerging from the impeller 19 , which then emerges from the housing 2 at the edge 25 on the outflow side.
  • the main flow can be directed more parallel to the axis in order to avoid excessive swirl components in the area of the outer contour 11 of the housing 2 .
  • FIG. 8 shows the fan 1 from FIGS. 1 to 4 in a planar view, seen here from the outflow side.
  • FIGS are twisted / tilted in relation to an imaginary radial ray starting from the fan axis.
  • the angle between the inflow edge of the strut vanes 3a and an imaginary radial ray emanating from the fan axis is greater than 25° everywhere or on average.
  • the strut wings 3a are strongly inclined or sickled. This leads to a reduced generation of rotating sounds.
  • the strut wings 3a are inclined counterclockwise in the direction from radially inside to outside, relative to the direction of rotation of the impeller.
  • FIG. 10 shows a further embodiment of a fan 1 according to the invention in a perspective view seen from the outflow side and in section on a plane through the fan axis, wherein no guide device is provided.
  • the suspension 27 assumes the supporting function. It is advantageously made of steel or another metallic material and therefore achieves the necessary rigidity with small cross-sectional areas, as a result of which the generation of noise is minimized. Such a suspension can also be designed inclined to the radial direction and/or have an aerodynamically optimized cross-sectional shape. It is also conceivable that a touch protection grid is integrated on the suspension.
  • the suspension 27 is fastened to fastening arrangements 28 on the housing 2, advantageously screwed. After the outflow-side edge 32 of the peripheral cover ring 16 of the impeller 19 for the main flow, a kind of jump diffuser is formed, since the flow cross section expands rather abruptly to the larger cross section of the inner contour 11 of the housing 2 .
  • FIG. 11 shows a further embodiment of a fan 1 according to the invention in a perspective view seen from the outflow side and in section on a plane through the fan axis, with an inner guide device 15 being provided and a suspension 27 taking on the carrying function. Strut wings 3a are consequently not formed.
  • the embodiment is similar to that shown in FIG. 10, except for the inner guide wheel 15 with an intermediate ring 5 and guide elements 3, which prevents or reduces a backflow in the hub area and thus increases the efficiency.
  • Hub ring of a guide device Inner contour of the housing Outlet diameter of the housing Outlet diameter of the impeller Outlet diameter of the inlet nozzle Guide device Circumferential cover ring of an impeller Openings in the housing
  • Twist correction elements a Long twist correction elements Hub ring of the impeller

Landscapes

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

Abstract

L'invention concerne un ventilateur, en particulier un ventilateur axial ou diagonal, comprenant un boîtier et un impulseur disposé en son sein et entraîné par un moteur électrique et ayant des aubes s'étendant entre une bague de moyeu et une bague de recouvrement, un diffuseur étagé étant formé sous la forme d'une expansion abrupte de la section transversale d'écoulement dans la direction d'écoulement en aval de l'impulseur et après la sortie de la région de la bague de recouvrement.
EP22850712.5A 2022-01-14 2022-12-22 Ventilateur doté d'un diffuseur étagé Pending EP4278093A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022200382.9A DE102022200382A1 (de) 2022-01-14 2022-01-14 Ventilator
PCT/DE2022/200313 WO2023134823A1 (fr) 2022-01-14 2022-12-22 Ventilateur doté d'un diffuseur étagé

Publications (1)

Publication Number Publication Date
EP4278093A1 true EP4278093A1 (fr) 2023-11-22

Family

ID=85151020

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22850712.5A Pending EP4278093A1 (fr) 2022-01-14 2022-12-22 Ventilateur doté d'un diffuseur étagé

Country Status (3)

Country Link
EP (1) EP4278093A1 (fr)
DE (1) DE102022200382A1 (fr)
WO (1) WO2023134823A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022210553A1 (de) 2022-10-06 2024-04-11 Ziehl-Abegg Se Nachleiteinrichtung für einen Ventilator und Ventilator mit einer Nachleiteinrichtung

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1162898A (ja) * 1997-08-22 1999-03-05 Mitsubishi Heavy Ind Ltd 斜流フアン
CN101652573B (zh) * 2007-04-05 2012-02-01 博格华纳公司 环形风扇和护罩空气导向系统
DE202011004708U1 (de) 2010-08-12 2011-07-14 Ziehl-Abegg Ag Ventilator
DE102013223983A1 (de) * 2013-11-25 2015-05-28 Ebm-Papst Mulfingen Gmbh & Co. Kg Lüfterbaueinheit
DE102018211808A1 (de) 2018-07-16 2020-01-16 Ziehl-Abegg Se Ventilator und Leiteinrichtung für einen Ventilator
DE202018106512U1 (de) 2018-11-16 2019-01-03 Ebm-Papst Mulfingen Gmbh & Co. Kg Diagonalventilator mit optimiertem Gehäuse
DE102018128792A1 (de) * 2018-11-16 2020-05-20 Ebm-Papst Mulfingen Gmbh & Co. Kg Kompakter Diagonalventilator mit Nachleiteinrichtung
DE102018128824A1 (de) * 2018-11-16 2020-05-20 Ebm-Papst Mulfingen Gmbh & Co. Kg Diagonalventilator mit Gehäuse
DE202018106508U1 (de) 2018-11-16 2019-01-03 Ebm-Papst Mulfingen Gmbh & Co. Kg Variabel mit unterschiedlichen Düsen kombinierbarer Diagonalventilator
DE102019220232A1 (de) * 2019-12-19 2021-06-24 Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg Kühlerlüfter

Also Published As

Publication number Publication date
DE102022200382A1 (de) 2023-07-20
WO2023134823A1 (fr) 2023-07-20

Similar Documents

Publication Publication Date Title
EP2778432B1 (fr) Agencement de ventilateur avec redresseur de courant
EP1276994B1 (fr) Ventilateur, notamment pour la ventilation de systemes electroniques
DE2855909C2 (de) Axial oder halbaxialdurchströmtes Lauf- oder Vorleitrad mit in Strömungsrichtung zunehmendem Nabendurchmesser, insbesondere zur Kühlung von Brennkraftmaschinen in Fahrzeugen
EP3824190A1 (fr) Ventilateur et équipement conducteur pour un ventilateur
WO2011038884A1 (fr) Ventilateur diagonal
DE102011015784A1 (de) Ventilator
EP2886874A1 (fr) Roue radiale pour un ventilateur à tambour et ventilateur doté d'une telle roue radiale
WO2016110373A1 (fr) Soufflante à canal latéral pour un moteur à combustion interne
WO2023134823A1 (fr) Ventilateur doté d'un diffuseur étagé
EP3009682B1 (fr) Ventilateur axial avec diffuseur interne et externe
EP1757814A1 (fr) Compresseur centrifuge
DE102018211809A1 (de) Gehäuse für einen Ventilator und Ventilator
EP2329149B1 (fr) Ventilateur diagonal
DE4023724A1 (de) Radialventilator
EP1122444B1 (fr) Ventilateur radial et buse pour ventilateur radial
DE3542214A1 (de) Ventilator
WO2018060068A1 (fr) Aubes à tracé en forme de s dans la direction d'écoulement pour des roues à aubes à type de construction radiale
EP1582750B1 (fr) Boitier et soufflante avec un boitier et une roue
WO2021143972A1 (fr) Boîtier pour un ventilateur et ventilateur doté d'un boîtier correspondant
EP1046822B1 (fr) Soufflante et boítier helicoidal
DE102020200363A1 (de) Tragmodul für einen Ventilator und Ventilator mit einem entsprechenden Tragmodul
EP0264486B1 (fr) Ventilateur, particulièrement ventilateur-canal
EP4314564A1 (fr) Ventilateur, plus particulièrement ventilateur radial ou diagonal
WO2013143671A1 (fr) Ventilateur, notamment pour un usage dans le domaine technique de la climatisation et du froid
WO2022128011A1 (fr) Ventilateur et carter en volute pour ventilateur

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20230816

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR