JPS56146096A - Blower - Google Patents
BlowerInfo
- 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
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
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)
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 |
-
1980
- 1980-04-15 JP JP4972280A patent/JPS56146096A/en active Pending
Cited By (12)
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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