EP0694697A1 - Roue pour une soufflante radial - Google Patents

Roue pour une soufflante radial Download PDF

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Publication number
EP0694697A1
EP0694697A1 EP95109573A EP95109573A EP0694697A1 EP 0694697 A1 EP0694697 A1 EP 0694697A1 EP 95109573 A EP95109573 A EP 95109573A EP 95109573 A EP95109573 A EP 95109573A EP 0694697 A1 EP0694697 A1 EP 0694697A1
Authority
EP
European Patent Office
Prior art keywords
blades
component
impeller
hub body
cover
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.)
Withdrawn
Application number
EP95109573A
Other languages
German (de)
English (en)
Inventor
Martin Dr. Ring
Norbert Smetana
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.)
Braun GmbH
Original Assignee
Braun GmbH
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 Braun GmbH filed Critical Braun GmbH
Publication of EP0694697A1 publication Critical patent/EP0694697A1/fr
Withdrawn legal-status Critical Current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
    • F04D29/26—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
    • F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
    • F04D29/285—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors the compressor wheel comprising a pair of rotatable bladed hub portions axially aligned and clamped together
    • 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
    • F04D29/02—Selection of particular materials
    • F04D29/023—Selection of particular materials 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
    • F04D29/26—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
    • 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
    • F05D2230/20—Manufacture essentially without removing material
    • F05D2230/21—Manufacture essentially without removing material by casting
    • 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
    • F05D2230/50—Building or constructing in particular ways
    • F05D2230/51—Building or constructing in particular ways in a modular way, e.g. using several identical or complementary parts or features
    • 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
    • F05D2230/50—Building or constructing in particular ways
    • F05D2230/53—Building or constructing in particular ways by integrally manufacturing a component, e.g. by milling from a billet or one piece construction

Definitions

  • the invention relates to an impeller for a radial blower, in particular for small motor-operated devices with fans, such as kitchen machines, hairdryers, vacuum cleaners, power tools, with a hub body arranged on a shaft, a plurality of rotor blades, a cover disk and a base disk, with hub bodies, rotor blades and cover plate consist in one piece from an axially demoldable, cast-technically manufactured first component.
  • the impeller is to be designed in such a way that the advantages which are possible in the case of casting production with axial demolding can be used in the aerodynamically favorable shaping without having to deal with disadvantages due to complicated joining processes or losses in efficiency.
  • the bottom disk consists of an axially demoldable, casting-made second component and is fastened to the shaft and / or the hub body by means of an axially joinable plug connection.
  • the outer surface of the cover disk which is opposite a surrounding housing, has a significantly greater extent in the axial direction than the thickness of the cover disk in the remaining area.
  • the diameter of the cover disk is expediently larger in the inlet area than the largest diameter of the integrally molded hub body, which enables a favorable design of the casting mold with regard to the axial demolding.
  • leading and trailing edges of the moving blades are preferred in order to improve efficiency and reduce running noise run perpendicular to the direction of flow.
  • the hub body 2 has essentially the shape of a truncated cone, advantageously with a curved outer surface on the cover disk 4 and on the hub body.
  • the left side of the illustration shows a first embodiment in which the hub 2 of the first component 9 and the second component 5 designed as a base plate are fastened on the shaft 1, for which purpose the components 9, 5 are pushed onto the shaft 1 in succession or together from above until they rest against the stop 6.
  • the dimensions can be chosen so that the restoring forces of the components deformed elastically when pushed on are sufficient for permanent fastening.
  • all joining aids known for such cases can also be used (e.g. wedge, thermal expansion, etc.).
  • the right side of the illustration shows a second embodiment, in which the base plate 5 is fastened on the hub body 2 of the first component 9.
  • This version has the advantage that only one component 10 has to be pushed onto the shaft 1 and that other joining aids can be used for the attachment of the second component 5 on the first 9 than for the attachment of the hub 2 on the shaft 1.
  • the blades 3 can have further blades 8 (shown in dashed lines) arranged for better flow guidance, which are preferably molded onto the second component 5 and which either rest against the inner wall 11 of the cover plate 4 or have a small gap S with respect to the latter.
  • Fig. 2 shows in detail that the cover plate 4 has a larger extension 4a on the edge than the thickness of the cover plate 4 in the rest of the area.
  • FIG 3 shows in detail how the entry area can be designed when the entry edges 13 of the blades 3 formed on the cover plate 4 form an angle a> 45 ° with the main axis of the impeller 10.
  • the inlet cross-section of the cover plate 4 is expediently changed with an annular part 4b to improve the flow guidance, the inflow cross-section 16 then being smaller than the cross-section at D1.
  • the cross section 16 no longer has to be circular.
  • an essential feature of all embodiments is that the inner diameter D1 of the cover disk 4 is equal to or larger than the outer diameter D2 of the hub body 2. In this way it is possible to use simple, axially interlocking molded parts, the first, the cover disk 4, the blades 3 and the To manufacture hub body 2 comprising component 9 in one piece by casting. This applies equally to the simple shape of the base plate 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP95109573A 1994-07-30 1995-06-21 Roue pour une soufflante radial Withdrawn EP0694697A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4427115 1994-07-30
DE4427115A DE4427115C1 (de) 1994-07-30 1994-07-30 Laufrad für ein Radialgebläse

Publications (1)

Publication Number Publication Date
EP0694697A1 true EP0694697A1 (fr) 1996-01-31

Family

ID=6524589

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95109573A Withdrawn EP0694697A1 (fr) 1994-07-30 1995-06-21 Roue pour une soufflante radial

Country Status (2)

Country Link
EP (1) EP0694697A1 (fr)
DE (1) DE4427115C1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1075605C (zh) * 1995-10-03 2001-11-28 株式会社日立制作所 电动吸尘器
DE102015101938A1 (de) * 2015-02-11 2016-08-11 Ebm-Papst Mulfingen Gmbh & Co. Kg Ventilatorrad und Ventilator
JP2020133596A (ja) * 2019-02-26 2020-08-31 三菱重工コンプレッサ株式会社 インペラ及び回転機械
CN111720360A (zh) * 2019-03-22 2020-09-29 株式会社京浜 离心叶轮
US11015610B2 (en) * 2016-07-27 2021-05-25 Denso Corporation Centrifugal blower

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3719280B2 (ja) * 1996-02-14 2005-11-24 株式会社デンソー 遠心式送風機
BR0115868B1 (pt) * 2000-12-04 2011-09-20 conjunto de ventilador centrìfugo, método para fabricação de rotor centrìfugo e método de montagem do conjunto de ventilador centrìfugo.
KR100748966B1 (ko) * 2005-01-25 2007-08-13 엘지전자 주식회사 송풍장치
JP5606358B2 (ja) * 2011-02-24 2014-10-15 三菱重工業株式会社 インペラ及びこれを備えたロータ並びにインペラの製造方法
JP2013047479A (ja) 2011-08-29 2013-03-07 Mitsubishi Heavy Ind Ltd インペラ及びこれを備えた回転機械並びにインペラの製造方法
JP5907723B2 (ja) * 2011-12-26 2016-04-26 三菱重工業株式会社 回転機械の製造方法
JP6309884B2 (ja) * 2014-11-25 2018-04-11 三菱重工業株式会社 インペラ、及び回転機械
US10808714B2 (en) * 2015-11-23 2020-10-20 Denso Corporation Turbofan

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB718751A (en) * 1952-11-21 1954-11-17 Rowland Rodway A new or improved fan or impeller
FR1155080A (fr) * 1956-07-24 1958-04-22 Normacem Sa Perfectionnement à la ventilation des machines
FR1299702A (fr) * 1961-06-16 1962-07-27 Lyonnaise Ventilation Perfectionnements à la construction des ventilateurs centrifuges et analogues
US3285187A (en) * 1965-11-05 1966-11-15 Msl Ind Inc Impeller for use in centrifugal pump or blower and a method of manufacture thereof
US3584968A (en) * 1969-10-06 1971-06-15 Howard I Furst Fan construction
US3782851A (en) * 1973-01-02 1974-01-01 Outboard Marine Corp Die castable centrifugal fan
FR2335714A1 (fr) * 1975-12-17 1977-07-15 Webasto Werk Baier Kg W Roue de ventilateur, notamment roue de soufflante a air chaud pour appareil de chauffage de vehicule
DE2713636B1 (de) * 1977-03-28 1978-07-13 Siemens Ag Geblaeserad,insbesondere fuer Verbrennungsluftgeblaese
DE3520218A1 (de) * 1984-06-08 1985-12-12 Hitachi, Ltd., Tokio/Tokyo Laufrad fuer ein radialgeblaese
DE3700230A1 (de) 1987-01-07 1988-07-21 Hauni Werke Koerber & Co Kg Luefterrad
EP0377847A1 (fr) * 1988-12-19 1990-07-18 Alcatel SEL Aktiengesellschaft Ventilateur à haute pression
DE4109646A1 (de) 1991-03-23 1992-09-24 Bosch Gmbh Robert Laufrad fuer einen radialluefter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4220227A1 (de) * 1992-06-20 1993-12-23 Bosch Gmbh Robert Laufrad für einen Radiallüfter

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB718751A (en) * 1952-11-21 1954-11-17 Rowland Rodway A new or improved fan or impeller
FR1155080A (fr) * 1956-07-24 1958-04-22 Normacem Sa Perfectionnement à la ventilation des machines
FR1299702A (fr) * 1961-06-16 1962-07-27 Lyonnaise Ventilation Perfectionnements à la construction des ventilateurs centrifuges et analogues
US3285187A (en) * 1965-11-05 1966-11-15 Msl Ind Inc Impeller for use in centrifugal pump or blower and a method of manufacture thereof
US3584968A (en) * 1969-10-06 1971-06-15 Howard I Furst Fan construction
US3782851A (en) * 1973-01-02 1974-01-01 Outboard Marine Corp Die castable centrifugal fan
FR2335714A1 (fr) * 1975-12-17 1977-07-15 Webasto Werk Baier Kg W Roue de ventilateur, notamment roue de soufflante a air chaud pour appareil de chauffage de vehicule
DE2713636B1 (de) * 1977-03-28 1978-07-13 Siemens Ag Geblaeserad,insbesondere fuer Verbrennungsluftgeblaese
DE3520218A1 (de) * 1984-06-08 1985-12-12 Hitachi, Ltd., Tokio/Tokyo Laufrad fuer ein radialgeblaese
DE3700230A1 (de) 1987-01-07 1988-07-21 Hauni Werke Koerber & Co Kg Luefterrad
EP0377847A1 (fr) * 1988-12-19 1990-07-18 Alcatel SEL Aktiengesellschaft Ventilateur à haute pression
DE4109646A1 (de) 1991-03-23 1992-09-24 Bosch Gmbh Robert Laufrad fuer einen radialluefter

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1075605C (zh) * 1995-10-03 2001-11-28 株式会社日立制作所 电动吸尘器
DE102015101938A1 (de) * 2015-02-11 2016-08-11 Ebm-Papst Mulfingen Gmbh & Co. Kg Ventilatorrad und Ventilator
US11015610B2 (en) * 2016-07-27 2021-05-25 Denso Corporation Centrifugal blower
US11608834B2 (en) 2016-07-27 2023-03-21 Denso Corporation Centrifugal blower
JP2020133596A (ja) * 2019-02-26 2020-08-31 三菱重工コンプレッサ株式会社 インペラ及び回転機械
CN111608952A (zh) * 2019-02-26 2020-09-01 三菱重工压缩机有限公司 叶轮以及旋转机械
EP3702624A1 (fr) * 2019-02-26 2020-09-02 Mitsubishi Heavy Industries Compressor Corporation Turbine et machine rotative
US11022135B2 (en) 2019-02-26 2021-06-01 Mitsubishi Heavy Industries Compressor Corporation Impeller and rotating machine
CN111608952B (zh) * 2019-02-26 2021-11-02 三菱重工压缩机有限公司 叶轮以及旋转机械
CN111720360A (zh) * 2019-03-22 2020-09-29 株式会社京浜 离心叶轮
CN111720360B (zh) * 2019-03-22 2022-06-24 日立安斯泰莫株式会社 离心叶轮

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Publication number Publication date
DE4427115C1 (de) 1995-04-06

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