JPS55107099A - Blower driven by electric motor - Google Patents

Blower driven by electric motor

Info

Publication number
JPS55107099A
JPS55107099A JP1370479A JP1370479A JPS55107099A JP S55107099 A JPS55107099 A JP S55107099A JP 1370479 A JP1370479 A JP 1370479A JP 1370479 A JP1370479 A JP 1370479A JP S55107099 A JPS55107099 A JP S55107099A
Authority
JP
Japan
Prior art keywords
air flow
vane
air
collision
fan
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
JP1370479A
Other languages
Japanese (ja)
Inventor
Masami Fukumoto
Masao Torigoe
Seiichi Taniguchi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP1370479A priority Critical patent/JPS55107099A/en
Publication of JPS55107099A publication Critical patent/JPS55107099A/en
Pending legal-status Critical Current

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE: To reduce noise developed by air flow collision by providing a notch in the peripheral end of a fan which disturbs the state of air flow at the discharge and diffuses thereby the energy with which the air pulses collide with the tongue.
CONSTITUTION: The fan 4 consists of three parts, the front shroud 8, vane 9, and rear shroud 10. A rectangular notch 13 is made near the outlet 11 of the vane 9 as shown in the figure, and at the same time the front shroud 8 is mounted along the upper curved face of the vane 9 to form a concave face that faces the inlet 12. By this configuration the state of air flow at the discharge near the fan outlet becomes not uniform, and, as shown in the figure, the air flow develops into air pulses that are nearly its three divisions and collides with the tongue. The energy at the time of the collision is, therefore, diffused and loudness of the sound that was developed by air collision is reduced.
COPYRIGHT: (C)1980,JPO&Japio
JP1370479A 1979-02-07 1979-02-07 Blower driven by electric motor Pending JPS55107099A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1370479A JPS55107099A (en) 1979-02-07 1979-02-07 Blower driven by electric motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1370479A JPS55107099A (en) 1979-02-07 1979-02-07 Blower driven by electric motor

Publications (1)

Publication Number Publication Date
JPS55107099A true JPS55107099A (en) 1980-08-16

Family

ID=11840589

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1370479A Pending JPS55107099A (en) 1979-02-07 1979-02-07 Blower driven by electric motor

Country Status (1)

Country Link
JP (1) JPS55107099A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0795688A3 (en) * 1993-10-18 1997-10-01 Hitachi, Ltd. Centrifugal Fluid Assembly
EP0870928A1 (en) * 1997-04-10 1998-10-14 Whirlpool Corporation Circulating centrifugal pump for a diswasher
JP2010042040A (en) * 2008-08-08 2010-02-25 Toshiba Corp Electric blower and vacuum cleaner

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0795688A3 (en) * 1993-10-18 1997-10-01 Hitachi, Ltd. Centrifugal Fluid Assembly
US5857834A (en) * 1993-10-18 1999-01-12 Hitachi, Ltd. Centrifugal fluid machine
US5971705A (en) * 1993-10-18 1999-10-26 Hitachi, Ltd. Centrifugal fluid machine
EP0984167A3 (en) * 1993-10-18 2000-09-27 Hitachi, Ltd. Centrifugal fluid assembly
US6139266A (en) * 1993-10-18 2000-10-31 Hitachi, Ltd. Centrifugal fluid machine
US6290460B1 (en) 1993-10-18 2001-09-18 Hitachi, Ltd. Centrifugal fluid machine
US6312222B1 (en) 1993-10-18 2001-11-06 Hitachi, Ltd. Centrifugal fluid machine
US6364607B2 (en) 1993-10-18 2002-04-02 Hitachi, Ltd. Centrifugal fluid machine
US6371724B2 (en) 1993-10-18 2002-04-16 Hitachi, Ltd. Centrifugal fluid machine
EP0870928A1 (en) * 1997-04-10 1998-10-14 Whirlpool Corporation Circulating centrifugal pump for a diswasher
JP2010042040A (en) * 2008-08-08 2010-02-25 Toshiba Corp Electric blower and vacuum cleaner

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