公开(公告)号：US4645031A

公开(公告)日：1987-02-24

申请号：US721397

申请日：1985-04-09

申请人： Hideo Omura ,  Toshiyuki Kaminaga ,  Hirofumi Takei

发明人： Hideo Omura ,  Toshiyuki Kaminaga ,  Hirofumi Takei

IPC分类号： F01N1/02 ,  F01N1/06 ,  F01N1/08 ,  F02B75/02

CPC分类号： F01N1/089 ,  F01N1/02 ,  F01N1/06 ,  F01N1/084 ,  F01N2490/155 ,  F02B2075/027

摘要： An exhaust passage has an upstream end connected to an engine combustion chamber and a downstream end open to the atmosphere. A device substantially equalizes natural frequencies of the exhaust passage respectively corresponding to third-degree and fourth-degree modes of standing pressure waves developing in the exhaust passage. A pressure damper is connected to a point of the exhaust passage at which an antinode of the third-degree or fourth-degree mode lies.

摘要翻译： 排气通道具有连接到发动机燃烧室的上游端和向大气敞开的下游端。 装置基本上使排气通道的固有频率相等地对应于在排气通道中形成的立体压力波的三度和四度模式。 压力阻尼器连接到排气通道的三度或四度模式的波腹处的点处。