| 发明名称 |
NOISE SUPPRESSION SYSTEMS |
| 摘要 |
An apparatus or system includes a component that generates or transfers noise having a frequency within a noise frequency range. The component may include a boundary. The apparatus or system may be an engine in some examples. The engine may additionally include a micro-perforated sheet positioned a distance from the boundary. The micro-perforated sheet may include a plurality of micro-perforated holes, and may be configured to absorb sound within an absorption frequency range based on parameters of the micro-perforated sheet. The parameters may include the distance from the boundary and dimensions of the micro-perforated holes, and may be set such that the absorption frequency range overlaps the noise frequency range. |
| 申请公布号 |
US2014271134(A1) |
申请公布日期 |
2014.09.18 |
| 申请号 |
US201314045657 |
申请日期 |
2013.10.03 |
| 申请人 |
Kohler Co. |
发明人 |
LE ROY Tyler W.;BAUMANN Todd A.;PAIROLERO Nicholas T.;SNYDER Dale D.;ADAMS Amy |
| 分类号 |
F01P11/12 |
主分类号 |
F01P11/12 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An engine comprising:
a component that generates or transfers noise having a frequency within a noise frequency range, the component comprising a boundary; a micro-perforated sheet positioned a distance from the boundary and comprising a plurality of micro-perforated holes, the micro-perforated sheet configured to absorb sound within an absorption frequency range based on parameters of the micro-perforated sheet; wherein the parameters include the distance from the boundary and dimensions of the micro-perforated holes, and wherein the parameters are set such that the absorption frequency range overlaps the noise frequency range. |
| 地址 |
Kohler WI US |
