JPS55123395A - Electric blower - Google Patents

Electric blower

Info

Publication number
JPS55123395A
JPS55123395A JP2921179A JP2921179A JPS55123395A JP S55123395 A JPS55123395 A JP S55123395A JP 2921179 A JP2921179 A JP 2921179A JP 2921179 A JP2921179 A JP 2921179A JP S55123395 A JPS55123395 A JP S55123395A
Authority
JP
Japan
Prior art keywords
inlet
fan
setting
ratio
inner diameter
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
JP2921179A
Other languages
Japanese (ja)
Inventor
Yuji Matsuura
Motoyuki Tanaka
Yasunori Hatano
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 TEC Corp
Original Assignee
Tokyo 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 Tokyo Electric Co Ltd filed Critical Tokyo Electric Co Ltd
Priority to JP2921179A priority Critical patent/JPS55123395A/en
Publication of JPS55123395A publication Critical patent/JPS55123395A/en
Pending legal-status Critical Current

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  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE: To reduce, in an electric blower having an fan of which the ratio of diametrical section area between, and the outer diameters of, the inlet and outlet, the generation of turbulent flow at the inlet of a fan cover by setting the ratio of the inner diameter between the inlet of a fan cover and the fan to a specified value.
CONSTITUTION: Setting is made as follows: the ratio of diametrical section area when d1h1/d2h2=0.85W1.10, outer diameter d2=90W130mm wherein the inner diameter and the height of the inlet 4, and the outer diameter of the outlet 5, of the fan 6 are d1, h1 and h2 respectivively. According to the characteristic diagram illustrating the relation between the efficiency η and the noise L (phon) of the blower, the efficiency η can be raised and noise L can be reduced by setting to d3/d1= 0.85W0.90 wherein the inner diameter of the inlet 8 of a fan cover 9 is d3.
COPYRIGHT: (C)1980,JPO&Japio
JP2921179A 1979-03-13 1979-03-13 Electric blower Pending JPS55123395A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2921179A JPS55123395A (en) 1979-03-13 1979-03-13 Electric blower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2921179A JPS55123395A (en) 1979-03-13 1979-03-13 Electric blower

Publications (1)

Publication Number Publication Date
JPS55123395A true JPS55123395A (en) 1980-09-22

Family

ID=12269848

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2921179A Pending JPS55123395A (en) 1979-03-13 1979-03-13 Electric blower

Country Status (1)

Country Link
JP (1) JPS55123395A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5173020A (en) * 1991-02-19 1992-12-22 Carrier Corporation Collector silencer for a centrifugal compressor
GB2575477A (en) * 2018-07-11 2020-01-15 Dyson Technology Ltd A centrifugal impeller assembly

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52150806A (en) * 1976-06-09 1977-12-14 Matsushita Electric Ind Co Ltd Motor fan

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52150806A (en) * 1976-06-09 1977-12-14 Matsushita Electric Ind Co Ltd Motor fan

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5173020A (en) * 1991-02-19 1992-12-22 Carrier Corporation Collector silencer for a centrifugal compressor
GB2575477A (en) * 2018-07-11 2020-01-15 Dyson Technology Ltd A centrifugal impeller assembly
WO2020012183A1 (en) * 2018-07-11 2020-01-16 Dyson Technology Limited A centrifugal impeller assembly

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