JP2007252938A5 - - Google Patents
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- Publication number
- JP2007252938A5 JP2007252938A5 JP2007122432A JP2007122432A JP2007252938A5 JP 2007252938 A5 JP2007252938 A5 JP 2007252938A5 JP 2007122432 A JP2007122432 A JP 2007122432A JP 2007122432 A JP2007122432 A JP 2007122432A JP 2007252938 A5 JP2007252938 A5 JP 2007252938A5
- Authority
- JP
- Japan
- Prior art keywords
- hole
- noise reduction
- sound
- heat conversion
- noise
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 72
- 239000000428 dust Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 3
- 230000001902 propagating Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 210000003746 Feathers Anatomy 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000000644 propagated Effects 0.000 description 1
- 230000002463 transducing Effects 0.000 description 1
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007122432A JP2007252938A (ja) | 2007-05-07 | 2007-05-07 | 騒音低減装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007122432A JP2007252938A (ja) | 2007-05-07 | 2007-05-07 | 騒音低減装置 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003071698A Division JP2004279779A (ja) | 2003-03-17 | 2003-03-17 | 騒音低減装置 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012202249A Division JP5533965B2 (ja) | 2012-09-14 | 2012-09-14 | 掃除機 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007252938A JP2007252938A (ja) | 2007-10-04 |
JP2007252938A5 true JP2007252938A5 (zh) | 2007-11-22 |
Family
ID=38627726
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007122432A Pending JP2007252938A (ja) | 2007-05-07 | 2007-05-07 | 騒音低減装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2007252938A (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015100426A1 (de) * | 2015-01-13 | 2016-07-14 | Alfred Kärcher Gmbh & Co. Kg | Reinigungsgerät und Verfahren zur Lärmminderung bei einem Reinigungsgerät |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0271300A (ja) * | 1988-05-06 | 1990-03-09 | Toushiyou Eng Kk | 吸音体とそれを利用した吸音ダクト |
JPH02301609A (ja) * | 1989-05-15 | 1990-12-13 | Fujitsu Ltd | 消音器 |
JP3346084B2 (ja) * | 1995-03-27 | 2002-11-18 | 東海ゴム工業株式会社 | 吸音装置 |
JPH10333686A (ja) * | 1997-05-28 | 1998-12-18 | Sharp Corp | 消音器 |
JP3486629B2 (ja) * | 1998-09-21 | 2004-01-13 | 学校法人立命館 | 共鳴器型吸音装置 |
JP2000214860A (ja) * | 1999-01-21 | 2000-08-04 | Tokai Rubber Ind Ltd | レゾネ―ト式吸音体 |
JP3317936B2 (ja) * | 1999-09-02 | 2002-08-26 | 鹿島建設株式会社 | 低周波音低減装置 |
JP3882451B2 (ja) * | 2000-03-03 | 2007-02-14 | いすゞ自動車株式会社 | 防音型エンジンフード |
JP2002356934A (ja) * | 2001-06-04 | 2002-12-13 | Univ Tokyo | 板材を二重に用いた遮音構造 |
JP2003063322A (ja) * | 2001-08-24 | 2003-03-05 | Inoac Corp | アンダーカバー |
-
2007
- 2007-05-07 JP JP2007122432A patent/JP2007252938A/ja active Pending
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