JPS54109609A - Electric fan - Google Patents

Electric fan

Info

Publication number
JPS54109609A
JPS54109609A JP1652078A JP1652078A JPS54109609A JP S54109609 A JPS54109609 A JP S54109609A JP 1652078 A JP1652078 A JP 1652078A JP 1652078 A JP1652078 A JP 1652078A JP S54109609 A JPS54109609 A JP S54109609A
Authority
JP
Japan
Prior art keywords
fan
bearing
guide plate
base
fixing 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
JP1652078A
Other languages
Japanese (ja)
Inventor
Masao Hata
Fumio Joraku
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 JP1652078A priority Critical patent/JPS54109609A/en
Publication of JPS54109609A publication Critical patent/JPS54109609A/en
Pending legal-status Critical Current

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE: To prevent dust flow into a bearing by flowing a part of return guide vane side high-pressure gas from a return flow course of a shell of a fixing guide plate among the base of the fixing guide plate, the base of the fan, and the basic plate of the fan, not through in the bearing.
CONSTITUTION: High pressure gas discharged from a fan 15 passes through a diffuser 31 and an air duct of a return guide vane 32 and flows fron an air vent 24 of a bearing supporter 14 into a motor. A part of the gas flows back from a small gap between the connection piece 38 of the fixing guide plate 16 and a shell 33 because an atmospheric pressure between the basic plate 60 of the fan 15 and the base 29 of the fixing guide plate 16 is lower than the space on the return guide vane 32. As a part of high-pressure gas including fine dust flowing into the motor 1 is prevented from running back through the internal of the bearing 12 into upper stream of the fan, no fine dust may from lodging in the bearing 12.
COPYRIGHT: (C)1979,JPO&Japio
JP1652078A 1978-02-17 1978-02-17 Electric fan Pending JPS54109609A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1652078A JPS54109609A (en) 1978-02-17 1978-02-17 Electric fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1652078A JPS54109609A (en) 1978-02-17 1978-02-17 Electric fan

Publications (1)

Publication Number Publication Date
JPS54109609A true JPS54109609A (en) 1979-08-28

Family

ID=11918541

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1652078A Pending JPS54109609A (en) 1978-02-17 1978-02-17 Electric fan

Country Status (1)

Country Link
JP (1) JPS54109609A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103498815A (en) * 2013-10-01 2014-01-08 湖北双剑鼓风机股份有限公司 Efficient flow adjusting device of compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103498815A (en) * 2013-10-01 2014-01-08 湖北双剑鼓风机股份有限公司 Efficient flow adjusting device of compressor

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