JCQ depurant-muffler is adopted on 49ZQ engine using small rare-earth element balls as catalyst and took the method of quadrature frequency band optimization to opetmize the configuration parameters.
用于492Q发动机的JCQ净声器采用稀土小球为催
剂,用正交频带加权
法
选
声器结
,取得良好的
声、净
性能。