JPS5793700A - Blower - Google Patents

Blower

Info

Publication number
JPS5793700A
JPS5793700A JP16921980A JP16921980A JPS5793700A JP S5793700 A JPS5793700 A JP S5793700A JP 16921980 A JP16921980 A JP 16921980A JP 16921980 A JP16921980 A JP 16921980A JP S5793700 A JPS5793700 A JP S5793700A
Authority
JP
Japan
Prior art keywords
bell mouth
projection piece
eddy current
sirrocco
noise
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
JP16921980A
Other languages
Japanese (ja)
Inventor
Isamu Nakajima
Takao Komai
Kiyoshi Sakuma
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP16921980A priority Critical patent/JPS5793700A/en
Publication of JPS5793700A publication Critical patent/JPS5793700A/en
Pending legal-status Critical Current

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE: To reduce noise by installing a projection piece on the inner surface of the bell mouth of a Sirrocco-type blower, and preventing generation of eddy current on the back of the bell mouth.
CONSTITUTION: A bell mouth 4 is constituted by forming the projection piece 6 having the same dimension of height the curvature radius R of the bell mouth 4, in the projecting state in the horizontal direction from the inner surface of the bell mouth 4, with the same distance as the outer diameter of a Sirrocco fan 1 apart from the center of the bell mouth 4. The turbulence of the eddy current which is liable to be formed on the back of the bell mouth 4 can be shielded by the projection piece 6 which reaches the crossing point A from the inner surface of the bell mouth 4, and thus noise can be reduced.
COPYRIGHT: (C)1982,JPO&Japio
JP16921980A 1980-12-01 1980-12-01 Blower Pending JPS5793700A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16921980A JPS5793700A (en) 1980-12-01 1980-12-01 Blower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16921980A JPS5793700A (en) 1980-12-01 1980-12-01 Blower

Publications (1)

Publication Number Publication Date
JPS5793700A true JPS5793700A (en) 1982-06-10

Family

ID=15882415

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16921980A Pending JPS5793700A (en) 1980-12-01 1980-12-01 Blower

Country Status (1)

Country Link
JP (1) JPS5793700A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6030286A (en) * 1997-01-19 2000-02-29 Denso Corporation Centrifugal blower having a plurality of sub blades
JP2012036827A (en) * 2010-08-06 2012-02-23 Daikin Industries Ltd Sirocco fan
US20120113588A1 (en) * 2010-11-05 2012-05-10 Lenovo (Singapore) Pte. Ltd. Flow rectifying cooling apparatus and a method for rectifying flow in a cooling apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6030286A (en) * 1997-01-19 2000-02-29 Denso Corporation Centrifugal blower having a plurality of sub blades
JP2012036827A (en) * 2010-08-06 2012-02-23 Daikin Industries Ltd Sirocco fan
US20120113588A1 (en) * 2010-11-05 2012-05-10 Lenovo (Singapore) Pte. Ltd. Flow rectifying cooling apparatus and a method for rectifying flow in a cooling apparatus
US8427827B2 (en) * 2010-11-05 2013-04-23 Lenovo (Singapore) Pte. Ltd. Flow rectifying cooling apparatus and a method for rectifying flow in a cooling apparatus

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