| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an exhaust pipe injection system that can accurately monitor the lowering of injection pressure which occurs in fuel piping by exhaust pipe injection, and can properly feedback-control an exhaust injection amount. <P>SOLUTION: The exhaust pipe injection system 11 comprises: an exhaust pipe injector 16 which injects fuel to an exhaust pipe of an internal combustion engine; a supply pump 12 which liquid-feeds fuel to the exhaust pipe injector 16 via the fuel piping 24; a pressure compensation means 28 arranged in the vicinity of the exhaust pipe injector 16 of the fuel piping 24; a fuel pressure sensor 29 arranged at the fuel piping 24 upstream of the pressure compensation means 28; and an injection control means 27 which adjusts the injection amount of the exhaust pipe injector 16 on the basis of a monitoring value of the fuel pressure sensor 29. <P>COPYRIGHT: (C)2012,JPO&INPIT |
