JPS56146096A - Blower - Google Patents

Blower

Info

Publication number
JPS56146096A
JPS56146096A JP4972280A JP4972280A JPS56146096A JP S56146096 A JPS56146096 A JP S56146096A JP 4972280 A JP4972280 A JP 4972280A JP 4972280 A JP4972280 A JP 4972280A JP S56146096 A JPS56146096 A JP S56146096A
Authority
JP
Japan
Prior art keywords
sound absorbing
absorbing material
fan casing
porous sound
hard porous
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
JP4972280A
Other languages
Japanese (ja)
Inventor
Ken Morinushi
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 JP4972280A priority Critical patent/JPS56146096A/en
Publication of JPS56146096A publication Critical patent/JPS56146096A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To simplify structure extremely, select formation freely in high accuracy, eliminate the danger of the exfoliation of the surface due to the exposure of a sound absorbing material to a wind and improve sound absorbing characteristics by forming a fan casing by the hard porous sound absorbing material.
CONSTITUTION: A fan casing 8 is formed by a hard porous sound absorbing material. Thus, since the roles of three sections of conventional fan casings, soft porous sound absorbing materials and perforated plates can be substituted for only the fan casing 8 made up by the hard porous sound absorbing material, structure is simplified extremely, the form is freely selected and the accuracy of dimensions can be improved. And since the unevenness of an inner wall surface of the fan casing 8 made of the hard porous sound absorbing material can be decreased excessively as compared to conventional perforated plates, aerodynamic characteristics are hardly deteriorated, a sound absorbing effect is excellent and the exfoliation of the surface due to exposure to a wind can be prevented.
COPYRIGHT: (C)1981,JPO&Japio
JP4972280A 1980-04-15 1980-04-15 Blower Pending JPS56146096A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4972280A JPS56146096A (en) 1980-04-15 1980-04-15 Blower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4972280A JPS56146096A (en) 1980-04-15 1980-04-15 Blower

Publications (1)

Publication Number Publication Date
JPS56146096A true JPS56146096A (en) 1981-11-13

Family

ID=12839075

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4972280A Pending JPS56146096A (en) 1980-04-15 1980-04-15 Blower

Country Status (1)

Country Link
JP (1) JPS56146096A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61277900A (en) * 1985-06-03 1986-12-08 Nippon Denso Co Ltd Air blower
JPS6355400A (en) * 1986-08-26 1988-03-09 Matsushita Electric Works Ltd Casing for reducing noise of fan
JPS63150497A (en) * 1986-12-15 1988-06-23 Matsushita Electric Ind Co Ltd Sound absorbing impeller device
JPH02173397A (en) * 1988-12-23 1990-07-04 Mitsubishi Electric Corp Low noise electric blower
JPH02173398A (en) * 1988-12-23 1990-07-04 Mitsubishi Electric Corp Low noise electric blower
JPH0294399U (en) * 1989-01-12 1990-07-26
JPH0441996A (en) * 1990-06-07 1992-02-12 Mitsubishi Electric Corp Ventilating fan
US6575695B1 (en) * 1999-11-30 2003-06-10 Maruyama Mfg. Co., Inc. Centrifugal blower and power working machine
JP2007092672A (en) * 2005-09-29 2007-04-12 Matsushita Electric Ind Co Ltd Blower
JP2010164203A (en) * 2009-01-13 2010-07-29 Panasonic Corp Ceiling-embedded ventilator
JP2011169295A (en) * 2010-02-22 2011-09-01 Mitsubishi Electric Corp Blower
JP2015140917A (en) * 2014-01-30 2015-08-03 三菱重工業株式会社 Piping

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61277900A (en) * 1985-06-03 1986-12-08 Nippon Denso Co Ltd Air blower
JPS6355400A (en) * 1986-08-26 1988-03-09 Matsushita Electric Works Ltd Casing for reducing noise of fan
JPS63150497A (en) * 1986-12-15 1988-06-23 Matsushita Electric Ind Co Ltd Sound absorbing impeller device
JPH02173397A (en) * 1988-12-23 1990-07-04 Mitsubishi Electric Corp Low noise electric blower
JPH02173398A (en) * 1988-12-23 1990-07-04 Mitsubishi Electric Corp Low noise electric blower
JPH0294399U (en) * 1989-01-12 1990-07-26
JPH0441996A (en) * 1990-06-07 1992-02-12 Mitsubishi Electric Corp Ventilating fan
US6575695B1 (en) * 1999-11-30 2003-06-10 Maruyama Mfg. Co., Inc. Centrifugal blower and power working machine
JP2007092672A (en) * 2005-09-29 2007-04-12 Matsushita Electric Ind Co Ltd Blower
JP2010164203A (en) * 2009-01-13 2010-07-29 Panasonic Corp Ceiling-embedded ventilator
JP2011169295A (en) * 2010-02-22 2011-09-01 Mitsubishi Electric Corp Blower
JP2015140917A (en) * 2014-01-30 2015-08-03 三菱重工業株式会社 Piping

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