发明名称 |
Dual frequency side branch resonator |
摘要 |
A side branch resonator for attenuating sound waves of first and second frequencies, the side branch resonator comprising a discharge branch; a resonator branch; an inlet branch flow connected to the discharge branch having an axis, the resonator branch having a wall which defines a resonator branch interior; the resonator branch having an open resonator branch end and a closed resonator branch end; the resonator further comprising an attenuation member for attenuating the first frequency sound waves. The attenuation member is located in the resonator branch interior a first distance from the axis and upstream from the resonator branch closed end. The closed resonator branch end is located a second distance from the axis to provide attenuation of the second frequency sound waves.
|
申请公布号 |
US5996733(A) |
申请公布日期 |
1999.12.07 |
申请号 |
US19980197630 |
申请日期 |
1998.11.20 |
申请人 |
THERMO KING CORPORATION |
发明人 |
DETUNCQ, JON A.;GLEASON, STEVEN M. |
分类号 |
F02M35/12;(IPC1-7):F01N1/02 |
主分类号 |
F02M35/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|