JPS5623599A - Cooling fan for radiator - Google Patents

Cooling fan for radiator

Info

Publication number
JPS5623599A
JPS5623599A JP9922679A JP9922679A JPS5623599A JP S5623599 A JPS5623599 A JP S5623599A JP 9922679 A JP9922679 A JP 9922679A JP 9922679 A JP9922679 A JP 9922679A JP S5623599 A JPS5623599 A JP S5623599A
Authority
JP
Japan
Prior art keywords
fan
air
flow
boss portion
rear direction
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
JP9922679A
Other languages
Japanese (ja)
Inventor
Shoichi Kamimura
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor 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
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP9922679A priority Critical patent/JPS5623599A/en
Priority to DE19792951775 priority patent/DE2951775A1/en
Priority to FR7931607A priority patent/FR2445457B1/en
Priority to GB7944514A priority patent/GB2041103B/en
Publication of JPS5623599A publication Critical patent/JPS5623599A/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
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • F04D29/329—Details of the hub

Landscapes

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

Abstract

PURPOSE: To form positively the flow of air in the rear direction of fan boss and increase the air amount of the fan by providing an air flow guide means in the fan boss portion so as to introduce the flow of air in a conical form in the rear direction of the fan.
CONSTITUTION: By setting the effective rooted portion as the rotary blade of the fan blade 4 to a pitch angle of 60W70° at r1=1.1r0 to 1.2r0 (where r0 is the radius of the fan boss portion 5, at which maximum air amount is obtained and less wind noise occurs, air is allowed to introduce in a conical air flow form having its top in front of the fan 3. Also, a spiral groove as the air flow guide means 8 is formed on the periphery of the fan boss portion 5. Thus, the flow of air in the rear direction of the fan boss portion 5 can be positively formed, the generation of a pressure- lowering region can be prevented, and the air amount of the fan can be increased.
COPYRIGHT: (C)1981,JPO&Japio
JP9922679A 1978-12-26 1979-08-03 Cooling fan for radiator Pending JPS5623599A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP9922679A JPS5623599A (en) 1979-08-03 1979-08-03 Cooling fan for radiator
DE19792951775 DE2951775A1 (en) 1978-12-26 1979-12-21 COOLING FAN
FR7931607A FR2445457B1 (en) 1978-12-26 1979-12-24 RADIATOR COOLING FAN FOR A MOTOR VEHICLE
GB7944514A GB2041103B (en) 1978-12-26 1979-12-28 Radiator cooling fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9922679A JPS5623599A (en) 1979-08-03 1979-08-03 Cooling fan for radiator

Publications (1)

Publication Number Publication Date
JPS5623599A true JPS5623599A (en) 1981-03-05

Family

ID=14241742

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9922679A Pending JPS5623599A (en) 1978-12-26 1979-08-03 Cooling fan for radiator

Country Status (1)

Country Link
JP (1) JPS5623599A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5844298A (en) * 1981-09-09 1983-03-15 Matsushita Electric Ind Co Ltd Blower
JPS59105098U (en) * 1982-12-30 1984-07-14 ダイキン工業株式会社 mixed flow blower
JPS6348993U (en) * 1986-09-17 1988-04-02
JPS6453496U (en) * 1987-09-30 1989-04-03
US6065936A (en) * 1997-04-25 2000-05-23 Kabushiki Kaisha Copal Axial fan, method of manufacturing impeller for axial fan, and mold for manufacturing impeller for axial fan
CN100389267C (en) * 2004-07-06 2008-05-21 鸿富锦精密工业（深圳）有限公司 Fan blade structure
US7945350B2 (en) * 2009-07-07 2011-05-17 General Electric Company Wind turbine acoustic emission control system and method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5844298A (en) * 1981-09-09 1983-03-15 Matsushita Electric Ind Co Ltd Blower
JPS59105098U (en) * 1982-12-30 1984-07-14 ダイキン工業株式会社 mixed flow blower
JPS6218717Y2 (en) * 1982-12-30 1987-05-13
JPS6348993U (en) * 1986-09-17 1988-04-02
JPS6453496U (en) * 1987-09-30 1989-04-03
US6065936A (en) * 1997-04-25 2000-05-23 Kabushiki Kaisha Copal Axial fan, method of manufacturing impeller for axial fan, and mold for manufacturing impeller for axial fan
US6276923B1 (en) 1997-04-25 2001-08-21 Nidec Copal Corporation Mold for manufacturing an impeller for an axial fan
CN100389267C (en) * 2004-07-06 2008-05-21 鸿富锦精密工业（深圳）有限公司 Fan blade structure
US7945350B2 (en) * 2009-07-07 2011-05-17 General Electric Company Wind turbine acoustic emission control system and method

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