EP4050221A4 - Centrifugal fan and air supply device - Google Patents

Centrifugal fan and air supply device Download PDF

Info

Publication number
EP4050221A4
EP4050221A4 EP20914498.9A EP20914498A EP4050221A4 EP 4050221 A4 EP4050221 A4 EP 4050221A4 EP 20914498 A EP20914498 A EP 20914498A EP 4050221 A4 EP4050221 A4 EP 4050221A4
Authority
EP
European Patent Office
Prior art keywords
supply device
air supply
centrifugal fan
centrifugal
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
EP20914498.9A
Other languages
German (de)
French (fr)
Other versions
EP4050221A1 (en
Inventor
Weiwei Zhang
Yong Yu
Kun Hu
Zhengen LIU
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.)
Midea Group Co Ltd
GD Midea Environment Appliances Manufacturing Co Ltd
Original Assignee
Midea Group Co Ltd
GD Midea Environment Appliances Manufacturing Co Ltd
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
Priority claimed from CN202010060619.7A external-priority patent/CN113137381A/en
Priority claimed from CN202010060655.3A external-priority patent/CN113137401B/en
Application filed by Midea Group Co Ltd, GD Midea Environment Appliances Manufacturing Co Ltd filed Critical Midea Group Co Ltd
Publication of EP4050221A1 publication Critical patent/EP4050221A1/en
Publication of EP4050221A4 publication Critical patent/EP4050221A4/en
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
    • F04D29/40—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
    • F04D29/422—Discharge tongues
    • 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
    • F04D17/162—Double suction 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
    • F04D29/40—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP20914498.9A 2020-01-19 2020-06-18 Centrifugal fan and air supply device Pending EP4050221A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN202010060619.7A CN113137381A (en) 2020-01-19 2020-01-19 Centrifugal fan for bladeless air supply device
CN202010060655.3A CN113137401B (en) 2020-01-19 2020-01-19 Centrifugal fan and air supply device
PCT/CN2020/096821 WO2021143044A1 (en) 2020-01-19 2020-06-18 Centrifugal fan and air supply device

Publications (2)

Publication Number Publication Date
EP4050221A1 EP4050221A1 (en) 2022-08-31
EP4050221A4 true EP4050221A4 (en) 2022-12-21

Family

ID=76863511

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20914498.9A Pending EP4050221A4 (en) 2020-01-19 2020-06-18 Centrifugal fan and air supply device

Country Status (2)

Country Link
EP (1) EP4050221A4 (en)
WO (1) WO2021143044A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050281669A1 (en) * 2004-06-16 2005-12-22 Lg Electronics Inc. Centrifugal fan
US20160047386A1 (en) * 2013-03-21 2016-02-18 Panasonic Intellectual Property Management Co., Ltd. Single suction centrifugal blower
WO2019082949A1 (en) * 2017-10-27 2019-05-02 三菱電機株式会社 Centrifugal blower, blowing device, air conditioner, and refrigeration cycle device
CN110145493A (en) * 2019-04-24 2019-08-20 宁波方太厨具有限公司 A kind of centrifugal blower volute for range hood

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5286162A (en) * 1993-01-04 1994-02-15 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Method of reducing hydraulic instability
US10480398B2 (en) * 2013-09-30 2019-11-19 Borgwarner Inc. Controlling turbocharger compressor choke
CN207145321U (en) * 2017-08-31 2018-03-27 广东美的制冷设备有限公司 multi-wing centrifugal fan and air conditioner
CN109973438B (en) * 2019-04-24 2021-01-19 宁波方太厨具有限公司 Volute of centrifugal fan

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050281669A1 (en) * 2004-06-16 2005-12-22 Lg Electronics Inc. Centrifugal fan
US20160047386A1 (en) * 2013-03-21 2016-02-18 Panasonic Intellectual Property Management Co., Ltd. Single suction centrifugal blower
WO2019082949A1 (en) * 2017-10-27 2019-05-02 三菱電機株式会社 Centrifugal blower, blowing device, air conditioner, and refrigeration cycle device
CN110145493A (en) * 2019-04-24 2019-08-20 宁波方太厨具有限公司 A kind of centrifugal blower volute for range hood

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2021143044A1 *

Also Published As

Publication number Publication date
EP4050221A1 (en) 2022-08-31
WO2021143044A1 (en) 2021-07-22

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