JPS5517254A - Cooling air passage of electric motor - Google Patents

Cooling air passage of electric motor

Info

Publication number
JPS5517254A
JPS5517254A JP8903378A JP8903378A JPS5517254A JP S5517254 A JPS5517254 A JP S5517254A JP 8903378 A JP8903378 A JP 8903378A JP 8903378 A JP8903378 A JP 8903378A JP S5517254 A JPS5517254 A JP S5517254A
Authority
JP
Japan
Prior art keywords
fan
cooling air
electric motor
air passage
guide
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
JP8903378A
Other languages
Japanese (ja)
Inventor
Mitsusachi Ishikawa
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.)
Koki Holdings Co Ltd
Original Assignee
Hitachi Koki 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 Hitachi Koki Co Ltd filed Critical Hitachi Koki Co Ltd
Priority to JP8903378A priority Critical patent/JPS5517254A/en
Publication of JPS5517254A publication Critical patent/JPS5517254A/en
Pending legal-status Critical Current

Links

Landscapes

  • Motor Or Generator Cooling System (AREA)

Abstract

PURPOSE: To effectively utilize a blade area and prevent a pressure loss of a fan by controlling the cooling air flow at the inport of the fan.
CONSTITUTION: A fan 4 and a guide-ring 5 having a projection 8 are equipped in a housing 1. In this case, D1<Df is set (wherein D1 is a diameter of a guide-ring in the fan side, Df is an outer diameter of the fan. Then, the cooling air flows to the central direction of the fan 4. Thus, a cooling efficiency is improved by effectively utilizing the total blade area of the fan.
COPYRIGHT: (C)1980,JPO&Japio
JP8903378A 1978-07-20 1978-07-20 Cooling air passage of electric motor Pending JPS5517254A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8903378A JPS5517254A (en) 1978-07-20 1978-07-20 Cooling air passage of electric motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8903378A JPS5517254A (en) 1978-07-20 1978-07-20 Cooling air passage of electric motor

Publications (1)

Publication Number Publication Date
JPS5517254A true JPS5517254A (en) 1980-02-06

Family

ID=13959575

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8903378A Pending JPS5517254A (en) 1978-07-20 1978-07-20 Cooling air passage of electric motor

Country Status (1)

Country Link
JP (1) JPS5517254A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51147704A (en) * 1975-06-13 1976-12-18 Mitsubishi Electric Corp Rotary machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51147704A (en) * 1975-06-13 1976-12-18 Mitsubishi Electric Corp Rotary machine

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