MY123770A - Propeller fan and outside unit for air-conditioner using thereof - Google Patents

Propeller fan and outside unit for air-conditioner using thereof

Info

Publication number
MY123770A
MY123770A MYPI96005533A MYPI19965533A MY123770A MY 123770 A MY123770 A MY 123770A MY PI96005533 A MYPI96005533 A MY PI96005533A MY PI19965533 A MYPI19965533 A MY PI19965533A MY 123770 A MY123770 A MY 123770A
Authority
MY
Malaysia
Prior art keywords
propeller fan
fan
air
negative pressure
reduce
Prior art date
Application number
MYPI96005533A
Inventor
Yoneyama Hiroyasu
Mochizuki Yoshihiko
Mori Yutaka
mochizuki Masaaki
Nagai Makoto
Satoh Ryoji
Otaguro Toshio
Original Assignee
Hitachi Shimizu Eng Co Ltd
Hitachi 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 Hitachi Shimizu Eng Co Ltd, Hitachi Ltd filed Critical Hitachi Shimizu Eng Co Ltd
Publication of MY123770A publication Critical patent/MY123770A/en

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
    • F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
    • F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers 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
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • F04D29/384—Blades characterised by form
    • F04D29/386—Skewed blades

Landscapes

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

Abstract

A PLURALITY OF CIRCUMFERENTIAL RIBS (4) ARE FORMED ON THE NEGATIVE PRESSURE SURFACE OF EACH OF FAN BLADES (7) OF A PROPELLER FAN (1) AND PROJECTED IN A DIRECTION FROM THE POSITIVE PRRESSURE SIDE TO THE NEGATIVE PRESSURE SIDE OF THE PROPELLER FAN (1), AND A PLURALITY OF RADIAL RIBS (5) WHICH ARE FORMED ON THE NEGATIVE PRRESSURE SURFACE (19) OF EACH OF THE FAN BLADES (7), AND PROJECTED IN A DIRECTION FROM THE POSITIVE PRESSURE TO THE NEGATIVE PRESSURE SIDE OF THE PROPELLER FAN (1), THEREBY THE FAN BLADES (7) CAN BE THIN SO AS TO REDUCE THE QUANTITY OF A MATERIAL TO BE USED, AND CAN REDUCE INFLUENCE CAUSED BY THE RIBS (4,5) UPON THE STREAMS OF THE AIR SO AS TO RESTRAIN GENERATION OF NOISE WHILE IT IS POSSIBLE TO AIM AT ENHANCING THE RIGIDITY IN THE AXIAL AND RADIAL DIRECTIONS OF THE FAN (1), AND THEREBY IT IS POSSIBLE TO PROVIDE A THIN AND NOISELESS PROPELLER FAN (1) EVEN HAVING A LARGE DIAMETER SO AS TO ENHANCE THE MOLDABILITY, AND TO SHORTEN THE MOLDING TIME WHILE REDUCING THE QUANTITY OF THE MATERIAL TO BE USED SO AS TO REDUCE THE MANUFACTURING COST.(FIGURE 11)
MYPI96005533A 1996-03-06 1996-12-27 Propeller fan and outside unit for air-conditioner using thereof MY123770A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1996/000540 WO1997033091A1 (en) 1996-03-06 1996-03-06 Propeller fan and outdoor machine using the same for air-conditioners

Publications (1)

Publication Number Publication Date
MY123770A true MY123770A (en) 2006-06-30

Family

ID=14153001

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI96005533A MY123770A (en) 1996-03-06 1996-12-27 Propeller fan and outside unit for air-conditioner using thereof

Country Status (3)

Country Link
JP (1) JP3468529B2 (en)
MY (1) MY123770A (en)
WO (1) WO1997033091A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5515222B2 (en) * 2007-02-13 2014-06-11 ダイキン工業株式会社 Blower impeller
DE102012023734A1 (en) * 2012-12-05 2014-06-05 Wilo Se Centrifugal pump especially for sewage or dirty water
BR112017021169B1 (en) 2015-04-08 2022-11-22 Horton, Inc FAN BLADE AND AXIAL FLOW FAN OPERATION METHOD
CN107956716A (en) * 2017-11-09 2018-04-24 重庆馨艺科技有限公司 A kind of electric fan flabellum
JP7122953B2 (en) * 2018-12-13 2022-08-22 三菱電機株式会社 propeller fan

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS48702U (en) * 1971-05-24 1973-01-08
JPS582398U (en) * 1981-06-30 1983-01-08 日産デイ−ゼル工業株式会社 internal combustion engine cooling fan
JPH0361193U (en) * 1989-10-18 1991-06-14
JPH03199697A (en) * 1989-12-28 1991-08-30 Toshiba Corp Cross flow fan for air conditioner and method for manufacturing the same
JP3256277B2 (en) * 1992-06-11 2002-02-12 松下電工株式会社 Propeller fan
JPH06108996A (en) * 1992-09-25 1994-04-19 Toshiba Corp fan
JPH089999B2 (en) * 1992-10-23 1996-01-31 アイシン化工株式会社 Fan blade structure
JP2950063B2 (en) * 1992-11-18 1999-09-20 三菱電機株式会社 Outdoor unit of air conditioner
JP2762884B2 (en) * 1992-11-25 1998-06-04 ダイキン工業株式会社 Blow mechanism
JPH06173896A (en) * 1992-12-04 1994-06-21 Toshiba Corp Outdoor unit of blower and air conditioner

Also Published As

Publication number Publication date
JP3468529B2 (en) 2003-11-17
WO1997033091A1 (en) 1997-09-12

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