公开(公告)号：US20140109882A1

公开(公告)日：2014-04-24

申请号：US14057228

申请日：2013-10-18

申请人： Johannes Hoegl ,  Silke Haag ,  Guenther Koessler ,  Andreas Pape ,  Thomas Herges ,  Cam Lai Ngo ,  Guido Schock

发明人： Johannes Hoegl ,  Silke Haag ,  Guenther Koessler ,  Andreas Pape ,  Thomas Herges ,  Cam Lai Ngo ,  Guido Schock

IPC分类号： F02B37/12

CPC分类号： F02B37/12 ,  F02B33/44 ,  F02B37/00 ,  F02M25/0818 ,  Y02T10/144

摘要： A method for monitoring the leak tightness of a fuel tank system is provided, the fuel tank system being provided for supplying fuel to a supercharged internal combustion engine. A pressure accumulator is filled from the supercharged intake manifold area of the internal combustion engine. The pressure from the pressure accumulator is transferred to the fuel tank system, which includes in particular the fuel tank and, if necessary, an activated carbon filter. The pressure curve in the closed fuel tank system is observed. A leak in the fuel tank system may be inferred on the basis of the pressure curve, if necessary.

摘要翻译： 提供了一种用于监测燃料箱系统的泄漏密封性的方法，所述燃料箱系统用于向增压内燃机供应燃料。 蓄压器由内燃机的增压进气歧管区域填充。 来自蓄压器的压力被传递到燃料箱系统，其特别地包括燃料箱和必要时包括活性炭过滤器。 观察封闭燃油箱系统的压力曲线。 如果需要，可以基于压力曲线来推断燃料箱系统中的泄漏。