WO2017207293A1 - Ventilateur - Google Patents

Ventilateur Download PDF

Info

Publication number
WO2017207293A1
WO2017207293A1 PCT/EP2017/062025 EP2017062025W WO2017207293A1 WO 2017207293 A1 WO2017207293 A1 WO 2017207293A1 EP 2017062025 W EP2017062025 W EP 2017062025W WO 2017207293 A1 WO2017207293 A1 WO 2017207293A1
Authority
WO
WIPO (PCT)
Prior art keywords
edge
curved portion
fan
rotor
curvature
Prior art date
Application number
PCT/EP2017/062025
Other languages
English (en)
Inventor
Giuseppe De' Longhi
Raffaele TOFFOLO
Original Assignee
De' Longhi Appliances S.R.L. Con Unico Socio
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 De' Longhi Appliances S.R.L. Con Unico Socio filed Critical De' Longhi Appliances S.R.L. Con Unico Socio
Publication of WO2017207293A1 publication Critical patent/WO2017207293A1/fr

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
    • F04D29/66—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
    • 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
    • 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
    • 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
    • F04D29/30—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
    • F04D29/66—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

Definitions

  • each point of the exit surface behaves, from an acoustic point of view, like a monopole source.
  • the fan 10 in accordance with the present invention can have a compression ratio between delivery pressure and suction pressure comprised between 1 and 1.5, preferably between 1 and 1.2.

Landscapes

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

Abstract

L'invention concerne un ventilateur, lequel ventilateur comprend un corps de support (11) comportant une ouverture d'entrée (13) et une ouverture de sortie (14) par l'intermédiaire desquelles un courant d'air est admis et évacué, respectivement, et un rotor (12) installé dans le corps de support (11) et comportant un moyeu au moins partiellement conique (16) relié à un moteur (17) et une pluralité de pales (18) fixées au moyeu (16). Chaque pale (18) comporte un bord d'entrée (20) positionné au voisinage de ladite ouverture d'entrée (13), un bord de sortie (21), un bord latéral interne (22) relié à la surface externe dudit moyeu (16), et un bord latéral externe (23) opposé audit bord latéral interne (22). Chaque pale (18) est définie par au moins un profil de générateur (26) qui s'étend à partir dudit bord d'entrée (20) jusque audit bord de sortie (21), et comporte une première partie incurvée (27) qui s'étend à partir du bord d'entrée (20) vers l'intérieur de la pale (18) et au moins une seconde partie incurvée (28) qui s'étend à partir dudit bord de sortie (21) vers l'intérieur de ladite pale (18) et qui a une courbure plus accentuée que la courbure de ladite première partie incurvée (27).
PCT/EP2017/062025 2016-05-18 2017-05-18 Ventilateur WO2017207293A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUA2016A003576A ITUA20163576A1 (it) 2016-05-18 2016-05-18 Ventilatore
IT102016000051287 2016-05-18

Publications (1)

Publication Number Publication Date
WO2017207293A1 true WO2017207293A1 (fr) 2017-12-07

Family

ID=57045259

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/062025 WO2017207293A1 (fr) 2016-05-18 2017-05-18 Ventilateur

Country Status (2)

Country Link
IT (1) ITUA20163576A1 (fr)
WO (1) WO2017207293A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112177974A (zh) * 2020-10-27 2021-01-05 德州明联空调设备有限公司 一种直流圆柱离心式叶轮及风机
CN112805474A (zh) * 2018-10-15 2021-05-14 日立建机株式会社 工程机械
WO2022103868A1 (fr) * 2020-11-10 2022-05-19 Greenheck Fan Corporation Ensemble ventilateur efficace

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100202886A1 (en) * 2007-11-26 2010-08-12 Toru Iwata Centrifugal fan
GB2486019A (en) * 2010-12-02 2012-06-06 Dyson Technology Ltd Fan impeller
CN103291655A (zh) * 2013-06-24 2013-09-11 浙江理工大学 一种带分流叶片的无叶风扇涡轮装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100202886A1 (en) * 2007-11-26 2010-08-12 Toru Iwata Centrifugal fan
GB2486019A (en) * 2010-12-02 2012-06-06 Dyson Technology Ltd Fan impeller
CN103291655A (zh) * 2013-06-24 2013-09-11 浙江理工大学 一种带分流叶片的无叶风扇涡轮装置

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112805474A (zh) * 2018-10-15 2021-05-14 日立建机株式会社 工程机械
US11680583B2 (en) 2018-10-15 2023-06-20 Hitachi Construction Machinery Co., Ltd. Construction machine
CN112805474B (zh) * 2018-10-15 2024-03-05 日立建机株式会社 工程机械
CN112177974A (zh) * 2020-10-27 2021-01-05 德州明联空调设备有限公司 一种直流圆柱离心式叶轮及风机
WO2022103868A1 (fr) * 2020-11-10 2022-05-19 Greenheck Fan Corporation Ensemble ventilateur efficace
US11668314B2 (en) 2020-11-10 2023-06-06 Greenheck Fan Corporation Efficient fan assembly
US11971047B2 (en) 2020-11-10 2024-04-30 Greenheck Fan Corporation Efficient fan assembly

Also Published As

Publication number Publication date
ITUA20163576A1 (it) 2017-11-18

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