JPS5574338A - Totally-enclosed-fan-cooled rotary machine - Google Patents

Totally-enclosed-fan-cooled rotary machine

Info

Publication number
JPS5574338A
JPS5574338A JP14497978A JP14497978A JPS5574338A JP S5574338 A JPS5574338 A JP S5574338A JP 14497978 A JP14497978 A JP 14497978A JP 14497978 A JP14497978 A JP 14497978A JP S5574338 A JPS5574338 A JP S5574338A
Authority
JP
Japan
Prior art keywords
fan
diameter
external fan
totally
enclosed
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
JP14497978A
Other languages
Japanese (ja)
Inventor
Yoshihisa Sasaki
Jusaburo Shibayama
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP14497978A priority Critical patent/JPS5574338A/en
Publication of JPS5574338A publication Critical patent/JPS5574338A/en
Pending legal-status Critical Current

Links

Landscapes

  • Motor Or Generator Cooling System (AREA)

Abstract

PURPOSE: To improve cooling effect without arranging particularly a larger type of external fan therefor by keeping the ratio of the diameter of an external fan provided on a shaft end to the equivalent diameter of an intake window provided on a fan cover for the external fan within a range of specified values.
CONSTITUTION: An external fan 3 having a plural blade 9 is provided on a rotary shaft 8 at its end, and a fan cover 1 for the external fan 3 is provided on the outside. In this case, the diameter D of an intake window 2 is selected so as to have the ratio A/D of the diameter A of the external fan 3 to the diameter D of the intake window 2 for the fan cover 1 at 0.9 up to 1.1 exclusive. By arranging such as described, a current resistance of a cooling air 7 is decreased, and thus a cooling effect can be improved.
COPYRIGHT: (C)1980,JPO&Japio
JP14497978A 1978-11-25 1978-11-25 Totally-enclosed-fan-cooled rotary machine Pending JPS5574338A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14497978A JPS5574338A (en) 1978-11-25 1978-11-25 Totally-enclosed-fan-cooled rotary machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14497978A JPS5574338A (en) 1978-11-25 1978-11-25 Totally-enclosed-fan-cooled rotary machine

Publications (1)

Publication Number Publication Date
JPS5574338A true JPS5574338A (en) 1980-06-04

Family

ID=15374646

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14497978A Pending JPS5574338A (en) 1978-11-25 1978-11-25 Totally-enclosed-fan-cooled rotary machine

Country Status (1)

Country Link
JP (1) JPS5574338A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0511707U (en) * 1991-07-23 1993-02-12 関西電力株式会社 Substation equipment for distribution

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0511707U (en) * 1991-07-23 1993-02-12 関西電力株式会社 Substation equipment for distribution

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