JPS5744799A - Cooling fan of radiator for automobile - Google Patents

Cooling fan of radiator for automobile

Info

Publication number
JPS5744799A
JPS5744799A JP11972980A JP11972980A JPS5744799A JP S5744799 A JPS5744799 A JP S5744799A JP 11972980 A JP11972980 A JP 11972980A JP 11972980 A JP11972980 A JP 11972980A JP S5744799 A JPS5744799 A JP S5744799A
Authority
JP
Japan
Prior art keywords
chord length
angle
fan
central angle
radiator
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
JP11972980A
Other languages
Japanese (ja)
Inventor
Susumu Yamazaki
Hajime Fujita
Kunihiro Noto
Hiroaki Mizoguchi
Reijiro Takahashi
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 Ltd
Original Assignee
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 Ltd filed Critical Hitachi Ltd
Priority to JP11972980A priority Critical patent/JPS5744799A/en
Publication of JPS5744799A publication Critical patent/JPS5744799A/en
Pending legal-status Critical Current

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE: To increase the air flow and the strength of the fan and decrease the noise and the draft resistance by a method wherein the optimum ranges of the chord length, central angle, degree of advance and setting angle of a rotating blade are specified.
CONSTITUTION: Let C2, θ2, δ2, C1, and θ1 be the maximum chord length, the central angle at the maximum chord length C2, the degree of advance, the setting angle, the chord length at the root of the blade and th central angle at the chord length C1. Then the range of the ratio θ2/θ1 is rendered to be 0.70W0.95, that of the ratio δ2/C2 0.15W0.30 and that of the angle α2 18W27°. By adopting the values within the ranges mentioned above, the fan have an excellent aerodynamic performance and as well as the reduction of the noise and yet the draft resistance and the increase of the strength of the fan can be resulted.
COPYRIGHT: (C)1982,JPO&Japio
JP11972980A 1980-09-01 1980-09-01 Cooling fan of radiator for automobile Pending JPS5744799A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11972980A JPS5744799A (en) 1980-09-01 1980-09-01 Cooling fan of radiator for automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11972980A JPS5744799A (en) 1980-09-01 1980-09-01 Cooling fan of radiator for automobile

Publications (1)

Publication Number Publication Date
JPS5744799A true JPS5744799A (en) 1982-03-13

Family

ID=14768672

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11972980A Pending JPS5744799A (en) 1980-09-01 1980-09-01 Cooling fan of radiator for automobile

Country Status (1)

Country Link
JP (1) JPS5744799A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4930990A (en) * 1989-09-15 1990-06-05 Siemens-Bendix Automotive Electronics Limited Quiet clutch fan blade
US20090155076A1 (en) * 2007-12-18 2009-06-18 Minebea Co., Ltd. Shrouded Dual-Swept Fan Impeller
JP2013249787A (en) * 2012-06-01 2013-12-12 Daikin Industries Ltd Propeller fan

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4930990A (en) * 1989-09-15 1990-06-05 Siemens-Bendix Automotive Electronics Limited Quiet clutch fan blade
US20090155076A1 (en) * 2007-12-18 2009-06-18 Minebea Co., Ltd. Shrouded Dual-Swept Fan Impeller
JP2013249787A (en) * 2012-06-01 2013-12-12 Daikin Industries Ltd Propeller fan

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