发明申请
- 专利标题： Noise reduction device
- 专利标题（中）： 降噪装置
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申请号： US11889813申请日： 2007-08-16
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公开(公告)号： US20080135328A1公开(公告)日： 2008-06-12
- 发明人: Shoichi Takeda , Yukito Obinata , Tsuyoshi Arai , Naoki Gohdo , Yoshiyuki Takizawa , Yuuki Nakamura
- 申请人： Shoichi Takeda , Yukito Obinata , Tsuyoshi Arai , Naoki Gohdo , Yoshiyuki Takizawa , Yuuki Nakamura
- 申请人地址： JP Nagano-ken
- 专利权人： MK SEIKO CO., LTD.
- 当前专利权人： MK SEIKO CO., LTD.
- 当前专利权人地址： JP Nagano-ken
- 优先权： JP330242/2006 20061207
- 主分类号： F01N1/06
- IPC分类号： F01N1/06 ; F16F15/00
摘要：
A plurality of openings are provided on the surface of a body casing which comprises a noise reduction chamber, and plate members (a reflecting plate and a sound waves introduction plate) are provided extending from an edge of each opening to the noise reduction chamber. The opening edges at which these plate members are attached have acute corners or rounded corners.
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