公开(公告)号：US20110265466A1

公开(公告)日：2011-11-03

申请号：US13138150

申请日：2009-10-07

申请人： Satoshi Ikeda ,  Akihiro Uto ,  Naoto Noguchi

发明人： Satoshi Ikeda ,  Akihiro Uto ,  Naoto Noguchi

IPC分类号： F01N1/00

CPC分类号： F16K1/223 ,  F02D9/04 ,  F02D9/101 ,  F02D9/102 ,  F02M26/70

摘要： An exhaust throttle valve 1 includes a housing 2 formed with a gas passage 2a, first and second valve shafts 3 and 4 rotatably journaled in the housing 2, a large valve body 5 connected to the first valve shaft, and a small valve body 6 connected the second valve shaft.A communication hole 17 is provided in the large valve body, and urging means that urges the small valve body in a direction of abutting against the large valve body is provided in the second valve shaft.When the large valve body closes the gas passage and pressure of a gas in the gas passage increases from a state where the small valve body closes the communication hole (FIG. 2(b)), the small valve body is separated from the large valve body against an urging force of the urging means to open the communication hole (FIG. 2(c)).With an easy configuration, exhaust gas pressure can be adjusted without depending on a gas temperature deference.

摘要翻译： 排气节流阀1包括形成有气体通道2a的壳体2，可旋转地轴颈支撑在壳体2中的第一和第二阀轴3和4，连接到第一阀轴的大阀体5和连接到第一阀轴的小阀体6 第二阀轴。 连接孔17设置在大阀体中，并且在第二阀轴上设置有向小阀体抵靠大阀体的方向推压小阀体的推压机构。 当大阀体关闭气体通道并且气体通道中气体的压力从小阀体关闭连通孔的状态（图2（b））增加时，小阀体与大阀门分离 抵抗施力装置的作用力打开连通孔（图2（c））。 通过简单的配置，可以调节排气压力，而不依赖于气体温度差。