US20240229802A1 - Fan, more particularly radial or diagonal fan - Google Patents

Fan, more particularly radial or diagonal fan Download PDF

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Publication number
US20240229802A1
US20240229802A1 US18/558,578 US202218558578A US2024229802A1 US 20240229802 A1 US20240229802 A1 US 20240229802A1 US 202218558578 A US202218558578 A US 202218558578A US 2024229802 A1 US2024229802 A1 US 2024229802A1
Authority
US
United States
Prior art keywords
cover disk
nozzle plate
impeller
fan according
fan
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
US18/558,578
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English (en)
Inventor
Frieder Loercher
Alexander Herold
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
Assigned to ZIEHL-ABEGG SE reassignment ZIEHL-ABEGG SE ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HEROLD, ALEXANDER, LOERCHER, FRIEDER
Publication of US20240229802A1 publication Critical patent/US20240229802A1/en
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
    • 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
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • 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
    • F04D29/28—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
    • F04D29/26—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
    • F04D29/288—Part of the wheel having an ejecting effect, e.g. being bladeless diffuser
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps

Definitions

  • the present disclosure relates to a fan, more particularly a radial or diagonal fan.
  • the fan includes a motor, an impeller driven in rotation by the motor, an inlet nozzle and a nozzle plate extending around the inlet nozzle.
  • the impeller essentially consists of a base disk, a cover disk and several wings extending between them.
  • the preceding object is solved, in an embodiment, by a fan with the features of claim 1 .
  • the nozzle plate then has an edge that is folded towards the pressure side, while the cover disk is rounded on its outer edge towards the suction side.
  • the fold of the nozzle plate and the rounding of the cover disk are shaped and dimensioned in such a way that the outflow from the impeller close to the cover disk interacts with the bend of the nozzle plate.
  • the imaginary extension of the cover disk 8 or its curvature area 7 in the form of the (middle) exit direction 33 intersects with the nozzle plate 2 or its outer fold 6 .
  • the middle exit direction 33 advantageously, in an embodiment, intersects with the nozzle plate 2 or its outer fold 6 over the entire, rather angular circumference of the nozzle plate 2 , but at least over a large area of the circumference of more than 95%. This ensures the advantageous interaction of the flow flowing out of the impeller 3 with the nozzle plate 2 or its outer fold 6 .
  • FIG. 5 shows a view from the outflow side of the fan 1 as shown in FIGS. 1 to 4 .
  • the stator 12 of the motor 4 with the electronics pot 21 integrated thereon can be seen.
  • the stator 12 is attached to the suspension 13 or its motor support plate 20 with fasteners 15 .
  • the base disk 10 and the cover disk 8 of the impeller 3 can be seen, since the latter has a larger outer diameter than the former.
  • Such an embodiment is particularly suitable for an installation condition in which the flow continues to flow axially after the fan, i.e., an installation situation that limits radially downstream of the fan impeller.
  • the ratio of the outside diameter of the base disk 10 to the outside diameter of the cover disk 8 is approximately between 85% and 95%.
  • FIG. 6 The illustration in FIG. 6 is intended to show only by way of example how an interaction between the air flow emerging from an impeller 3 can take place due to the curved area with the fold 6 of the nozzle plate 2 . It is based on a simulation.
  • the streamlines 31 shown are based on local velocity vectors that are projected onto the streamline plane shown.
  • FIG. 7 is, comparable to FIG. 6 , a schematic, perspective representation of a flow pattern calculated by simulation in the exit area of a fan such as the one from FIGS. 1 to 5 at a second operating point, which is characterized by a rather higher delivery volume flow, based on speed, impeller diameter and exit area.
  • the cover disk 8 With the curved outer area 7 and a flow exit surface 29 .
  • the main delivery volume flow emerging from the impeller is, as can be seen from the streamlines 31 , directed away from the nozzle plate 2 and, seen in section, flows in a direction obliquely away from the nozzle plate 2 or its imaginary radial extension.
  • FIG. 7 is intended to show only by way of example how an interaction between the air flow emerging from an impeller 3 can take place due to the curved area with the fold 6 of the nozzle plate 2 . It is based on a simulation.
  • the streamlines 31 shown are based on local velocity vectors that are projected onto the streamline plane shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US18/558,578 2021-05-04 2022-04-25 Fan, more particularly radial or diagonal fan Pending US20240229802A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102021204491.3A DE102021204491A1 (de) 2021-05-04 2021-05-04 Ventilator, insbesondere Radial- oder Diagonalventilator
DE102021204491.3 2021-05-04
PCT/DE2022/200074 WO2022233372A1 (de) 2021-05-04 2022-04-25 Ventilator, insbesondere radial- oder diagonalventilator

Publications (1)

Publication Number Publication Date
US20240229802A1 true US20240229802A1 (en) 2024-07-11

Family

ID=81750538

Family Applications (1)

Application Number Title Priority Date Filing Date
US18/558,578 Pending US20240229802A1 (en) 2021-05-04 2022-04-25 Fan, more particularly radial or diagonal fan

Country Status (7)

Country Link
US (1) US20240229802A1 (https=)
EP (1) EP4314564A1 (https=)
JP (1) JP2024517441A (https=)
CN (1) CN117242265A (https=)
BR (1) BR112023022311A2 (https=)
DE (1) DE102021204491A1 (https=)
WO (1) WO2022233372A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20240280279A1 (en) * 2023-02-21 2024-08-22 Rheem Manufacturing Company Systems and Methods for Air Handler Systems with a Backwards Curved Centrifugal Fan or Mixed Flow Fan

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3946648A (en) * 1972-02-28 1976-03-30 Buttner-Schilde-Haas Aktiengesellschaft Roof ventilator
US4357914A (en) * 1978-11-16 1982-11-09 Suddeutsche Kuhlerfabrik, Julius Fr. Behr Gmbh & Co. Kg Cooling system for internal combustion engines
JP2012207600A (ja) * 2011-03-30 2012-10-25 Minebea Co Ltd 遠心ファン
US20150275922A1 (en) * 2013-05-10 2015-10-01 Lg Electronics Inc. Centrifugal fan and method of manufacturing the same
US20150377238A1 (en) * 2014-06-27 2015-12-31 Minebea Co., Ltd. Centrifugal fan
JP2016023598A (ja) * 2014-07-22 2016-02-08 ミネベア株式会社 遠心式ファン
US20170030378A1 (en) * 2015-07-31 2017-02-02 Minebea Co., Ltd. Centrifugal fan
WO2017071963A1 (de) * 2015-10-28 2017-05-04 Ebm-Papst Mulfingen Gmbh & Co. Kg Ventilatorrad und ventilator
US20180030994A1 (en) * 2015-02-11 2018-02-01 Ebm-Papst Mulfingen Gmbh & Co. Kg Ventilator wheel and ventilator
CN107781190A (zh) * 2016-08-30 2018-03-09 洛森通风设备(上海)有限公司 后部出风的离心风机
US20180142700A1 (en) * 2015-04-28 2018-05-24 Ziehl-Abegg Se Diagonal or radial fan having a guide device
EP3101280B1 (en) * 2014-01-27 2019-02-27 Mitsubishi Electric Corporation Centrifugal fan and air conditioning device
CN109931289A (zh) * 2019-03-29 2019-06-25 上海理工大学 一种无蜗壳风机的无叶扩压器
CN109973410A (zh) * 2019-04-11 2019-07-05 浙江科贸智能机电股份有限公司 一种无蜗壳离心通风机
US20190353364A1 (en) * 2016-12-23 2019-11-21 Ziehl-Abegg Se Fan system and arrangement of one or more such fan systems in a flow duct

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Publication number Priority date Publication date Assignee Title
JPH0723778B2 (ja) * 1988-12-20 1995-03-15 ダイキン工業株式会社 空気調和装置
SE508332C2 (sv) * 1995-09-07 1998-09-28 Pm Luft Radialfläkthjul
JP3487238B2 (ja) * 1999-10-12 2004-01-13 ダイキン工業株式会社 送風機のベルマウス構造
EP1455094A1 (de) * 2003-03-04 2004-09-08 Ziehl-Abegg AG Radiallüfterrad
JP4872997B2 (ja) * 2008-02-28 2012-02-08 ダイキン工業株式会社 送風機及び該送風機を備えた空気調和機
JP2009228499A (ja) * 2008-03-21 2009-10-08 Daikin Ind Ltd 送風機及びこれを用いた空気調和機
KR101625061B1 (ko) 2014-03-27 2016-05-27 엘지전자 주식회사 원심팬
US11846301B2 (en) * 2016-03-15 2023-12-19 Trane International Inc. Aligning a centerline of a motor shaft in a fan assembly
DE102017110642A1 (de) 2017-05-16 2018-11-22 Ebm-Papst Mulfingen Gmbh & Co. Kg Gebläseanordnung mit Strömungsteilungsdüse
DE102018211808A1 (de) * 2018-07-16 2020-01-16 Ziehl-Abegg Se Ventilator und Leiteinrichtung für einen Ventilator

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3946648A (en) * 1972-02-28 1976-03-30 Buttner-Schilde-Haas Aktiengesellschaft Roof ventilator
US4357914A (en) * 1978-11-16 1982-11-09 Suddeutsche Kuhlerfabrik, Julius Fr. Behr Gmbh & Co. Kg Cooling system for internal combustion engines
JP2012207600A (ja) * 2011-03-30 2012-10-25 Minebea Co Ltd 遠心ファン
US20150275922A1 (en) * 2013-05-10 2015-10-01 Lg Electronics Inc. Centrifugal fan and method of manufacturing the same
EP3101280B1 (en) * 2014-01-27 2019-02-27 Mitsubishi Electric Corporation Centrifugal fan and air conditioning device
US20150377238A1 (en) * 2014-06-27 2015-12-31 Minebea Co., Ltd. Centrifugal fan
JP2016023598A (ja) * 2014-07-22 2016-02-08 ミネベア株式会社 遠心式ファン
US20180030994A1 (en) * 2015-02-11 2018-02-01 Ebm-Papst Mulfingen Gmbh & Co. Kg Ventilator wheel and ventilator
US20180142700A1 (en) * 2015-04-28 2018-05-24 Ziehl-Abegg Se Diagonal or radial fan having a guide device
US20170030378A1 (en) * 2015-07-31 2017-02-02 Minebea Co., Ltd. Centrifugal fan
WO2017071963A1 (de) * 2015-10-28 2017-05-04 Ebm-Papst Mulfingen Gmbh & Co. Kg Ventilatorrad und ventilator
CN107781190A (zh) * 2016-08-30 2018-03-09 洛森通风设备(上海)有限公司 后部出风的离心风机
US20190353364A1 (en) * 2016-12-23 2019-11-21 Ziehl-Abegg Se Fan system and arrangement of one or more such fan systems in a flow duct
CN109931289A (zh) * 2019-03-29 2019-06-25 上海理工大学 一种无蜗壳风机的无叶扩压器
CN109973410A (zh) * 2019-04-11 2019-07-05 浙江科贸智能机电股份有限公司 一种无蜗壳离心通风机

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20240280279A1 (en) * 2023-02-21 2024-08-22 Rheem Manufacturing Company Systems and Methods for Air Handler Systems with a Backwards Curved Centrifugal Fan or Mixed Flow Fan

Also Published As

Publication number Publication date
BR112023022311A2 (pt) 2023-12-26
DE102021204491A1 (de) 2022-11-10
JP2024517441A (ja) 2024-04-22
WO2022233372A1 (de) 2022-11-10
EP4314564A1 (de) 2024-02-07
CN117242265A (zh) 2023-12-15

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