EP3798451A4 - Propeller fan and air conditioner outdoor unit provided with propeller fan - Google Patents

Propeller fan and air conditioner outdoor unit provided with propeller fan Download PDF

Info

Publication number
EP3798451A4
EP3798451A4 EP19810828.4A EP19810828A EP3798451A4 EP 3798451 A4 EP3798451 A4 EP 3798451A4 EP 19810828 A EP19810828 A EP 19810828A EP 3798451 A4 EP3798451 A4 EP 3798451A4
Authority
EP
European Patent Office
Prior art keywords
propeller fan
air conditioner
outdoor unit
unit provided
conditioner outdoor
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
EP19810828.4A
Other languages
German (de)
French (fr)
Other versions
EP3798451A8 (en
EP3798451A1 (en
Inventor
Tsuyoshi Eguchi
Yosihiro Hara
Kazunari Tanaka
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.)
Mitsubishi Heavy Industries Thermal Systems Ltd
Original Assignee
Mitsubishi Heavy Industries Thermal Systems 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
Application filed by Mitsubishi Heavy Industries Thermal Systems Ltd filed Critical Mitsubishi Heavy Industries Thermal Systems Ltd
Publication of EP3798451A1 publication Critical patent/EP3798451A1/en
Publication of EP3798451A8 publication Critical patent/EP3798451A8/en
Publication of EP3798451A4 publication Critical patent/EP3798451A4/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
    • F04D29/386—Skewed blades
    • 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
    • F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0029—Axial fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/38—Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
    • 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
    • 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
    • F05D2240/307—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 tip 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
    • F05D2250/00—Geometry
    • F05D2250/90—Variable geometry

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
  • Other Air-Conditioning Systems (AREA)
EP19810828.4A 2018-05-30 2019-05-24 Propeller fan and air conditioner outdoor unit provided with propeller fan Pending EP3798451A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018103741A JP7150480B2 (en) 2018-05-30 2018-05-30 Propeller fan and outdoor unit for air conditioner provided with the same
PCT/JP2019/020593 WO2019230582A1 (en) 2018-05-30 2019-05-24 Propeller fan and air conditioner outdoor unit provided with propeller fan

Publications (3)

Publication Number Publication Date
EP3798451A1 EP3798451A1 (en) 2021-03-31
EP3798451A8 EP3798451A8 (en) 2021-05-19
EP3798451A4 true EP3798451A4 (en) 2021-11-03

Family

ID=68698358

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810828.4A Pending EP3798451A4 (en) 2018-05-30 2019-05-24 Propeller fan and air conditioner outdoor unit provided with propeller fan

Country Status (3)

Country Link
EP (1) EP3798451A4 (en)
JP (1) JP7150480B2 (en)
WO (1) WO2019230582A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116050028B (en) * 2023-03-30 2023-06-20 陕西空天信息技术有限公司 Impeller blade determination method, computer-readable storage medium, and electronic device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62265499A (en) * 1986-05-13 1987-11-18 Mitsubishi Heavy Ind Ltd Axial fan with moving blade of variable
JPH08284887A (en) * 1995-04-11 1996-10-29 Toyo Radiator Co Ltd Fan
JP5079063B2 (en) * 2010-08-25 2012-11-21 三菱電機株式会社 Propeller, blower and heat pump device
JP2014058902A (en) * 2012-09-18 2014-04-03 Daikin Ind Ltd Propeller fan
US20150044058A1 (en) * 2013-08-08 2015-02-12 Mitsubishi Electric Corporation Axial flow fan and air-conditioning apparatus having the same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5396512A (en) * 1977-02-01 1978-08-23 Torin Corp Axiallflow disc wheel
EP0945625B1 (en) * 1998-03-23 2004-03-03 SPAL S.r.l. Axial flow fan
JP2002048094A (en) * 2000-08-07 2002-02-15 Komatsu Ltd Fan
JP2005121310A (en) * 2003-10-17 2005-05-12 Hitachi Ltd Air conditioner
JP4467952B2 (en) * 2003-11-10 2010-05-26 東芝キヤリア株式会社 Propeller fan, outdoor unit for air conditioner using this
JP6132380B2 (en) * 2012-02-06 2017-05-24 ミネベアミツミ株式会社 Impeller structure of axial fan

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62265499A (en) * 1986-05-13 1987-11-18 Mitsubishi Heavy Ind Ltd Axial fan with moving blade of variable
JPH08284887A (en) * 1995-04-11 1996-10-29 Toyo Radiator Co Ltd Fan
JP5079063B2 (en) * 2010-08-25 2012-11-21 三菱電機株式会社 Propeller, blower and heat pump device
JP2014058902A (en) * 2012-09-18 2014-04-03 Daikin Ind Ltd Propeller fan
US20150044058A1 (en) * 2013-08-08 2015-02-12 Mitsubishi Electric Corporation Axial flow fan and air-conditioning apparatus having the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2019230582A1 *

Also Published As

Publication number Publication date
EP3798451A8 (en) 2021-05-19
WO2019230582A1 (en) 2019-12-05
EP3798451A1 (en) 2021-03-31
JP7150480B2 (en) 2022-10-11
JP2019206958A (en) 2019-12-05

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Inventor name: EGUCHI, TSUYOSHI

Inventor name: HARA, YOSIHIRO

Inventor name: TANAKA, KAZUNARI

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