发明申请
- 专利标题: Multi-chamber noise control system
- 专利标题(中): 多室噪声控制系统
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申请号: US11638826申请日: 2006-12-14
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公开(公告)号: US20080144852A1公开(公告)日: 2008-06-19
- 发明人: Robert G. Rebandt , Ming-te Cheng , Takeshi Abe
- 申请人: Robert G. Rebandt , Ming-te Cheng , Takeshi Abe
- 专利权人: Ford Global Technologies, LLC
- 当前专利权人: Ford Global Technologies, LLC
- 主分类号: G10K11/16
- IPC分类号: G10K11/16
摘要:
A noise control system is operable within a box-like structure provided by the dual bulkhead plenum of the vehicle dashboard positioned within the transfer path along which the noise is being transmitted from the source of the generated noise to the receiver of the noise in the passenger compartment of an automobile. The plenum is divided into discrete chambers into each of which is provided a counter noise generating apparatus to create a counteracting noise offsetting the noise generated at the source. The acoustic resonance of the chambers amplifies the noise control energy. The geometry of the individual chambers can be varied to optimize the packaging and sound control or shaping strategy. The sound energy permitted to pass through the plenum to the driver's side of the passenger compartment can be tuned to be different than the noise received in the passenger's side.
公开/授权文献
- US08005235B2 Multi-chamber noise control system 公开/授权日:2011-08-23
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