公开(公告)号：US20110264356A1

公开(公告)日：2011-10-27

申请号：US12999953

申请日：2010-03-31

申请人： Shingo Korenaga ,  Teruaki Haibara ,  Shigeki Miyashita

发明人： Shingo Korenaga ,  Teruaki Haibara ,  Shigeki Miyashita

IPC分类号： F02D41/30

CPC分类号： F02D41/40 ,  F01N3/0256 ,  F02D35/02 ,  F02D2041/389 ,  F02D2200/063 ,  F02M51/061 ,  F02M57/005 ,  F02M2200/242 ,  Y02T10/44

摘要： The present invention has an object to make abnormal combustion of an internal combustion engine detectable by simple means at low cost. For this purpose, an abnormal combustion detecting device provided by the present invention uses a direct injection injector as means for detecting abnormal combustion. In the direct injection injector relating to the abnormal combustion detecting device, a sack chamber is provided at a tip end of a nozzle body, and a nozzle hole is formed to cause the sack chamber and a combustion chamber to communicate with each other. A needle is housed inside the nozzle body, and the sack chamber is opened and closed by the needle, whereby a fuel is directly injected into the combustion chamber. The abnormal combustion detecting device detects lift of the needle from a closing position by, for example, a sensor, and determines that abnormal combustion occurs in the combustion chamber by the fact that lift of the needle is detected at a non-operational time of the direct injection injector.

摘要翻译： 本发明的目的是通过简单的手段低成本地检测内燃机的异常燃烧。 为此，本发明提供的异常燃烧检测装置使用直接喷射喷射器作为检测异常燃烧的装置。 在与异常燃烧检测装置相关的直接喷射喷射器中，在喷嘴体的前端设有袋室，形成喷嘴孔，使袋室和燃烧室相互连通。 针头容纳在喷嘴体内，袋体由针打开和关闭，燃料直接喷入燃烧室。 异常燃烧检测装置通过例如传感器来检测针从关闭位置的升力，并且通过以下事实来确定在燃烧室中发生异常燃烧，即在所述燃烧室的非操作时间检测到针的提升 直喷式注射器。