EP4242469A1 - Dispositif de protection destiné à agencer en aval une roue mobile pouvant tourner autour d'un axe de rotation - Google Patents

Dispositif de protection destiné à agencer en aval une roue mobile pouvant tourner autour d'un axe de rotation Download PDF

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Publication number
EP4242469A1
EP4242469A1 EP23157454.2A EP23157454A EP4242469A1 EP 4242469 A1 EP4242469 A1 EP 4242469A1 EP 23157454 A EP23157454 A EP 23157454A EP 4242469 A1 EP4242469 A1 EP 4242469A1
Authority
EP
European Patent Office
Prior art keywords
wires
protective device
area
flow
predetermined
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
EP23157454.2A
Other languages
German (de)
English (en)
Inventor
Marc Schneider
Andreas LUCIUS
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
Publication of EP4242469A1 publication Critical patent/EP4242469A1/fr
Pending legal-status Critical Current

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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
    • F04D29/70—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
    • 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
    • F04D29/40—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
    • 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

Definitions

  • protective grilles that are acoustically more suitable can, for example, be up to 4 dB quieter than protective grilles that are less acoustically suitable.
  • the ratio d/D of the distance d to the wire diameter D of two immediately adjacent wires of the wires in a predetermined area along the common curve around the point of maximum flow velocity, i.e. around the maximum of the flow velocity and in particular of all wires in this area and preferably exclusively in this preferred range is less than 3, in particular less than 2.6, or greater than 4.
  • the common curve can transition from the second region radially inwards into a third region and, for example, bend sharply, which is inclined towards the first region. The curve is then convex in the direction of flow.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP23157454.2A 2022-03-08 2023-02-20 Dispositif de protection destiné à agencer en aval une roue mobile pouvant tourner autour d'un axe de rotation Pending EP4242469A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022105365.2A DE102022105365A1 (de) 2022-03-08 2022-03-08 Schutzvorrichtung zur Anordnung stromab eines um eine Rotationsachse rotierbaren Laufrades

Publications (1)

Publication Number Publication Date
EP4242469A1 true EP4242469A1 (fr) 2023-09-13

Family

ID=85285001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23157454.2A Pending EP4242469A1 (fr) 2022-03-08 2023-02-20 Dispositif de protection destiné à agencer en aval une roue mobile pouvant tourner autour d'un axe de rotation

Country Status (2)

Country Link
EP (1) EP4242469A1 (fr)
DE (1) DE102022105365A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9746003B2 (en) * 2011-08-18 2017-08-29 Ziehl-Abegg Ag Motor suspension for fans, preferably axial-flow fans, as well as method for manufacturing an air grille of such a motor suspension
CN212003771U (zh) * 2020-03-12 2020-11-24 浙江科贸实业有限公司 一种轴流风机的网罩
WO2022140319A1 (fr) * 2020-12-23 2022-06-30 Rheem Manufacturing Company Ensemble grille pour unité de traitement d'air

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014102370A1 (de) 2014-02-24 2015-08-27 Ebm-Papst St. Georgen Gmbh & Co. Kg Strömungsgleichrichter sowie Lüfteranordnung mit Strömungsgleichrichter
DE202014105284U1 (de) 2014-11-04 2014-12-08 Ebm-Papst Mulfingen Gmbh & Co. Kg Schutzgitter mit verbessertem Wirkungsgrad- und Geräuschverhalten
DE102015107907A1 (de) 2015-05-20 2016-11-24 Ebm-Papst Mulfingen Gmbh & Co. Kg Ebenes Strömungsleitgitter
DE102015115308A1 (de) 2015-09-10 2017-03-16 Ebm-Papst Mulfingen Gmbh & Co. Kg Strömungsleitgitter zur Anordnung an einem Ventilator
DE202018106508U1 (de) 2018-11-16 2019-01-03 Ebm-Papst Mulfingen Gmbh & Co. Kg Variabel mit unterschiedlichen Düsen kombinierbarer Diagonalventilator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9746003B2 (en) * 2011-08-18 2017-08-29 Ziehl-Abegg Ag Motor suspension for fans, preferably axial-flow fans, as well as method for manufacturing an air grille of such a motor suspension
CN212003771U (zh) * 2020-03-12 2020-11-24 浙江科贸实业有限公司 一种轴流风机的网罩
WO2022140319A1 (fr) * 2020-12-23 2022-06-30 Rheem Manufacturing Company Ensemble grille pour unité de traitement d'air

Also Published As

Publication number Publication date
DE102022105365A1 (de) 2023-09-14

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