EP4350151A4 - PROPELLER FAN AND AIR CONDITIONING - Google Patents

PROPELLER FAN AND AIR CONDITIONING

Info

Publication number
EP4350151A4
EP4350151A4 EP21942926.3A EP21942926A EP4350151A4 EP 4350151 A4 EP4350151 A4 EP 4350151A4 EP 21942926 A EP21942926 A EP 21942926A EP 4350151 A4 EP4350151 A4 EP 4350151A4
Authority
EP
European Patent Office
Prior art keywords
air conditioning
propeller fan
propeller
fan
conditioning
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
EP21942926.3A
Other languages
German (de)
French (fr)
Other versions
EP4350151A1 (en
Inventor
Taku IWASE
Tetsushi Kishitani
Hideshi OBARA
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.)
Hitachi Johnson Controls Air Conditioning Inc
Original Assignee
Hitachi Johnson Controls Air Conditioning Inc
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 Hitachi Johnson Controls Air Conditioning Inc filed Critical Hitachi Johnson Controls Air Conditioning Inc
Publication of EP4350151A1 publication Critical patent/EP4350151A1/en
Publication of EP4350151A4 publication Critical patent/EP4350151A4/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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • F04D29/384—Blades characterised by form
    • 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
    • F05D2240/00—Components
    • F05D2240/20—Rotors
    • F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05D2240/303—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the leading edge of a rotor blade
    • 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
    • F05D2240/00—Components
    • F05D2240/20—Rotors
    • F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05D2240/304—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the trailing edge of a rotor blade

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP21942926.3A 2021-05-25 2021-05-25 PROPELLER FAN AND AIR CONDITIONING Pending EP4350151A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/019737 WO2022249270A1 (en) 2021-05-25 2021-05-25 Propeller fan and air conditioner

Publications (2)

Publication Number Publication Date
EP4350151A1 EP4350151A1 (en) 2024-04-10
EP4350151A4 true EP4350151A4 (en) 2025-03-19

Family

ID=84229550

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21942926.3A Pending EP4350151A4 (en) 2021-05-25 2021-05-25 PROPELLER FAN AND AIR CONDITIONING

Country Status (4)

Country Link
EP (1) EP4350151A4 (en)
JP (1) JP7591654B2 (en)
CN (1) CN116964333A (en)
WO (1) WO2022249270A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB459206A (en) * 1936-06-05 1937-01-04 Hartzell Industries Improvements in or relating to rotatable air ventilating screw propellers
US2243189A (en) * 1937-06-04 1941-05-27 Emerson Electric Mfg Co Fan blade
EP1111188A2 (en) * 1999-12-21 2001-06-27 General Electric Company Swept airfoil with barrel shaped leading edge
CN102003412A (en) * 2010-12-03 2011-04-06 陈新 Wing shaped blade of high-pressure axial fan
US20200308968A1 (en) * 2019-03-27 2020-10-01 Rolls-Royce Deutschland Ltd & Co Kg Rotor blade of a turbomachine
WO2020234997A1 (en) * 2019-05-21 2020-11-26 三菱電機株式会社 Axial fan, blower, and refrigeration cycle apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7374403B2 (en) * 2005-04-07 2008-05-20 General Electric Company Low solidity turbofan
US8083487B2 (en) * 2007-07-09 2011-12-27 General Electric Company Rotary airfoils and method for fabricating same
CN105008723B (en) 2013-02-22 2017-08-15 日立空调·家用电器株式会社 Screw ventilation and the air conditioner for possessing the screw ventilation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB459206A (en) * 1936-06-05 1937-01-04 Hartzell Industries Improvements in or relating to rotatable air ventilating screw propellers
US2243189A (en) * 1937-06-04 1941-05-27 Emerson Electric Mfg Co Fan blade
EP1111188A2 (en) * 1999-12-21 2001-06-27 General Electric Company Swept airfoil with barrel shaped leading edge
CN102003412A (en) * 2010-12-03 2011-04-06 陈新 Wing shaped blade of high-pressure axial fan
US20200308968A1 (en) * 2019-03-27 2020-10-01 Rolls-Royce Deutschland Ltd & Co Kg Rotor blade of a turbomachine
WO2020234997A1 (en) * 2019-05-21 2020-11-26 三菱電機株式会社 Axial fan, blower, and refrigeration cycle apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2022249270A1 *

Also Published As

Publication number Publication date
EP4350151A1 (en) 2024-04-10
WO2022249270A1 (en) 2022-12-01
JP7591654B2 (en) 2024-11-28
JPWO2022249270A1 (en) 2022-12-01
CN116964333A (en) 2023-10-27

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Effective date: 20250217

RIC1 Information provided on ipc code assigned before grant

Ipc: F04D 29/38 20060101AFI20250211BHEP