公开(公告)号：US5063744A

公开(公告)日：1991-11-12

申请号：US415918

申请日：1989-10-02

申请人： Shinobu Ishiyama ,  Teruo Kumai ,  Kazuyoshi Ishisaka ,  Toshiyuki Maehara ,  Makoto Fujimori ,  Kimio Nemoto

发明人： Shinobu Ishiyama ,  Teruo Kumai ,  Kazuyoshi Ishisaka ,  Toshiyuki Maehara ,  Makoto Fujimori ,  Kimio Nemoto

IPC分类号： F02B37/013 ,  F02B37/16 ,  F02B37/18

CPC分类号： F02B37/16 ,  F02B37/004 ,  F02B37/013 ,  F02B37/127 ,  F02B37/18 ,  F02B37/186 ,  Y02T10/144

摘要： In a sequential turbocharger system having a first stage large volume turbo-charger and a second stage small volume turbocharger, a diaphragm actuator is provided for an exhaust bypass valve bypassing a turbine of the small volume turbocharger. The diaphragm actuator has a two step characteristic in relation to an opening of the exhaust bypass valve, so that an increased speed of opening of the exhaust bypass valve is obtained when the pressure downstream of the compressor of the first turbocharger is equal to the pressure downstream of the compressor of the second turbocharger.

摘要翻译： 在具有第一级大容积涡轮增压器和第二级小容积涡轮增压器的顺序涡轮增压器系统中，为旁路小容积涡轮增压器的涡轮的排气旁路阀提供隔膜致动器。 隔膜致动器相对于排气旁通阀的开度具有两步特性，使得当第一涡轮增压器的压缩机的下游压力等于下游的压力时，可以获得提高排气旁通阀的打开速度 的第二涡轮增压器的压缩机。