JP2001034272A5 - - Google Patents

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Publication number
JP2001034272A5
JP2001034272A5 JP1999234466A JP23446699A JP2001034272A5 JP 2001034272 A5 JP2001034272 A5 JP 2001034272A5 JP 1999234466 A JP1999234466 A JP 1999234466A JP 23446699 A JP23446699 A JP 23446699A JP 2001034272 A5 JP2001034272 A5 JP 2001034272A5
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JP
Japan
Prior art keywords
sound wave
sound
focal point
reflecting plate
introduction port
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.)
Granted
Application number
JP1999234466A
Other languages
English (en)
Japanese (ja)
Other versions
JP2001034272A (ja
JP4300543B2 (ja
Filing date
Publication date
Application filed filed Critical
Priority to JP23446699A priority Critical patent/JP4300543B2/ja
Priority claimed from JP23446699A external-priority patent/JP4300543B2/ja
Publication of JP2001034272A publication Critical patent/JP2001034272A/ja
Publication of JP2001034272A5 publication Critical patent/JP2001034272A5/ja
Application granted granted Critical
Publication of JP4300543B2 publication Critical patent/JP4300543B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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JP23446699A 1999-07-19 1999-07-19 消音装置 Expired - Lifetime JP4300543B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23446699A JP4300543B2 (ja) 1999-07-19 1999-07-19 消音装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23446699A JP4300543B2 (ja) 1999-07-19 1999-07-19 消音装置

Publications (3)

Publication Number Publication Date
JP2001034272A JP2001034272A (ja) 2001-02-09
JP2001034272A5 true JP2001034272A5 (https=) 2006-09-28
JP4300543B2 JP4300543B2 (ja) 2009-07-22

Family

ID=16971456

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23446699A Expired - Lifetime JP4300543B2 (ja) 1999-07-19 1999-07-19 消音装置

Country Status (1)

Country Link
JP (1) JP4300543B2 (https=)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5122859B2 (ja) * 2007-04-24 2013-01-16 エムケー精工株式会社 消音壁
JP6185219B2 (ja) * 2011-05-31 2017-08-23 株式会社日立製作所 移動車両用遮音装置
CN105869619B (zh) * 2016-05-10 2023-11-24 叶小民 鱼鳞降噪机
CN109028349B (zh) * 2018-06-15 2021-08-24 青岛海信日立空调系统有限公司 隔音罩、空调室外机以及降噪方法

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