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JPS57105597A - Multiblade fan - Google Patents

Multiblade fan

Info

Publication number
JPS57105597A
JPS57105597A JP18197580A JP18197580A JPS57105597A JP S57105597 A JPS57105597 A JP S57105597A JP 18197580 A JP18197580 A JP 18197580A JP 18197580 A JP18197580 A JP 18197580A JP S57105597 A JPS57105597 A JP S57105597A
Authority
JP
Japan
Prior art keywords
impeller
side plate
multiblade fan
plate
blade
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
JP18197580A
Other languages
Japanese (ja)
Inventor
Susumu Yamazaki
Kunihiro Noto
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 JP18197580A priority Critical patent/JPS57105597A/en
Publication of JPS57105597A publication Critical patent/JPS57105597A/en
Pending legal-status Critical Current

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE: To reduce the noise of the multiblade fan by a method wherein an impeller diameter at a side plate side is made larger than that at a main plate side as well as the inclination of the outer peripheral surface of blade arrangement to the axis of rotation is made at a specified angle.
CONSTITUTION: Because the impeller diameter at the side plate 5 side D2s is larger than that at the main plate 4 side D2h, the blade loading at the side plate 5 side is reduced, resulting in reducing the occurrence of separation of flow. Accordingly, elementary stream lines of flow within the impeller 1 are shaped as indicated with lines with an arrow head 92, 92' and 92". Especially the stream line 92 near the side plate 5 holds its shape nearly normaly to the axis of rotation 7. As a result, the distribution of the outlet velocity Cm2 of the impeller is nearly uniform along a blade width b2, resulting in reducing the noise of the multiblade fan.
COPYRIGHT: (C)1982,JPO&Japio
JP18197580A 1980-12-24 1980-12-24 Multiblade fan Pending JPS57105597A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18197580A JPS57105597A (en) 1980-12-24 1980-12-24 Multiblade fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18197580A JPS57105597A (en) 1980-12-24 1980-12-24 Multiblade fan

Publications (1)

Publication Number Publication Date
JPS57105597A true JPS57105597A (en) 1982-07-01

Family

ID=16110133

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18197580A Pending JPS57105597A (en) 1980-12-24 1980-12-24 Multiblade fan

Country Status (1)

Country Link
JP (1) JPS57105597A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61116198U (en) * 1984-12-29 1986-07-22
KR100416777B1 (en) * 2001-08-01 2004-01-31 엘지전자 주식회사 Turbo fan
JP2014029149A (en) * 2012-06-26 2014-02-13 Denso Corp Centrifugal multi-blade fan

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61116198U (en) * 1984-12-29 1986-07-22
KR100416777B1 (en) * 2001-08-01 2004-01-31 엘지전자 주식회사 Turbo fan
JP2014029149A (en) * 2012-06-26 2014-02-13 Denso Corp Centrifugal multi-blade fan

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