JPS5566696A - Centrifugal fan with backswept wing - Google Patents

Centrifugal fan with backswept wing

Info

Publication number
JPS5566696A
JPS5566696A JP14083978A JP14083978A JPS5566696A JP S5566696 A JPS5566696 A JP S5566696A JP 14083978 A JP14083978 A JP 14083978A JP 14083978 A JP14083978 A JP 14083978A JP S5566696 A JPS5566696 A JP S5566696A
Authority
JP
Japan
Prior art keywords
blades
ratio
periphery
centrifugal fan
arrow
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
JP14083978A
Other languages
Japanese (ja)
Inventor
Osamu Inoue
Chikau Suma
Tomoshi Higuchi
Junichi Mukaikubo
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 JP14083978A priority Critical patent/JPS5566696A/en
Publication of JPS5566696A publication Critical patent/JPS5566696A/en
Pending legal-status Critical Current

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE: To reduce the noise generated during operation of a centrifugal fan by selecting the ratio of the inside diameter to the outside diameter at the suction side end of a multiplicity of blades formed along the periphery of the disc to fall within the range of 0.8 ± 0.2.
CONSTITUTION: The blades 2 are arranged at intervals required on the front periphery of the disk 1, setting the internal and external diameters D2 and D1 of the blades 2 on the inhaling side 4 in the ratio of 0.8 ± 0.02. When the fan is turned in the direction of an arrow, the air inhaled from the inhaling side 4 is sent forth to the periphery passing through between the blades 2 as shown by the arrow. Even if the ratio between the external and internal diameters of the blades is gradually changed so as to measure the input and noise levels in each condition, the measured results indicate that motor load W and the noise level dB are the lowest at that value above.
COPYRIGHT: (C)1980,JPO&Japio
JP14083978A 1978-11-15 1978-11-15 Centrifugal fan with backswept wing Pending JPS5566696A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14083978A JPS5566696A (en) 1978-11-15 1978-11-15 Centrifugal fan with backswept wing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14083978A JPS5566696A (en) 1978-11-15 1978-11-15 Centrifugal fan with backswept wing

Publications (1)

Publication Number Publication Date
JPS5566696A true JPS5566696A (en) 1980-05-20

Family

ID=15277906

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14083978A Pending JPS5566696A (en) 1978-11-15 1978-11-15 Centrifugal fan with backswept wing

Country Status (1)

Country Link
JP (1) JPS5566696A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000044711A (en) * 1998-12-30 2000-07-15 전주범 Blade of sirocco fan of air conditioner
US6217285B1 (en) * 1996-08-08 2001-04-17 Sanyo Electric Co., Ltd. Impeller for a centrifugal blower
KR100380228B1 (en) * 2000-05-16 2003-04-16 엘지전자 주식회사 Sirocco fan of Window type Air conditioner

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49102194U (en) * 1972-12-26 1974-09-03

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49102194U (en) * 1972-12-26 1974-09-03

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6217285B1 (en) * 1996-08-08 2001-04-17 Sanyo Electric Co., Ltd. Impeller for a centrifugal blower
CN1083947C (en) * 1996-08-08 2002-05-01 三洋电机株式会社 Impeller for centrifugal fan
KR20000044711A (en) * 1998-12-30 2000-07-15 전주범 Blade of sirocco fan of air conditioner
KR100380228B1 (en) * 2000-05-16 2003-04-16 엘지전자 주식회사 Sirocco fan of Window type Air conditioner

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