公开(公告)号：US20140271134A1

公开(公告)日：2014-09-18

申请号：US14045657

申请日：2013-10-03

Applicant: Kohler Co.

Inventor： Tyler W. LE ROY ,  Todd A. BAUMANN ,  Nicholas T. PAIROLERO ,  Dale D. SNYDER ,  Amy ADAMS

IPC: F01P11/12

CPC classification number: F01P11/12 ,  F04D29/4213 ,  F04D29/424 ,  F04D29/582 ,  F04D29/665

Abstract: 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.

Abstract translation: 装置或系统包括产生或传送噪声频率范围内的频率的噪声的部件。 组件可以包括边界。 在一些示例中，装置或系统可以是发动机。 发动机可以另外包括位于距离边界一定距离的微孔板。 微孔板可以包括多个微穿孔，并且可以被配置为基于微孔板的参数吸收吸收频率范围内的声音。 参数可以包括距离微孔的边界和尺寸的距离，并且可以被设置为使得吸收频率范围与噪声频率范围重叠。