公开(公告)号：US06260658B1

公开(公告)日：2001-07-17

申请号：US09178215

申请日：1998-10-23

申请人： Jahn D. Darrell ,  Robert A. Noreen ,  Ronald E. Flitsch ,  Scott E. Oehlke

发明人： Jahn D. Darrell ,  Robert A. Noreen ,  Ronald E. Flitsch ,  Scott E. Oehlke

IPC分类号： E04F1704

CPC分类号： F01D25/30 ,  F02C7/045 ,  F02M35/12

摘要： The present disclosure relates to a generally rectangular frame including two spaced-apart and substantially parallel end members interconnected by two spaced part and substantially parallel length members. The length members defined inwardly facing channels. Two spaced-apart perforated members are secured within the inwardly facing channels between the two spaced-apart length members. Sound absorbing material is compressed between the perforated members.

摘要翻译： 本公开涉及一种大致矩形的框架，其包括两个间隔开且基本上平行的端部构件，两个间隔件由两个间隔开的部分和基本上平行的长度构件互 长度构件定义向内的通道。 两个间隔开的穿孔构件固定在两个间隔开的长度构件之间的面向内的通道内。 吸声材料在穿孔构件之间被压缩。