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1. 发明申请

WO2016161514A1 OPERATING A GASEOUS FUEL INJECTOR 审中-公开
标题翻译：操作气体燃料喷射器
公开(公告)号：WO2016161514A1
公开(公告)日：2016-10-13
申请号：PCT/CA2016/050401
申请日：2016-04-07
申请人： WESTPORT POWER INC.
发明人： WELCH, Alan B , BLAIR, Colin W. , KARIMI SHARIF, Hamed
IPC分类号： F02D41/30 , F02D19/02 , F02D41/22 , F02M21/02
CPC分类号： F02D19/024 , F02D19/026 , F02D19/027 , F02D19/0642 , F02D41/0027 , F02D41/221 , F02D41/2467 , F02D41/3005 , F02D2041/225 , F02D2200/0614 , F02M21/0254 , F02M21/0275 , Y02T10/32 , Y02T10/36
摘要： Fuel injection accuracy of gaseous fuel injectors is important for efficient engine operation. However, the performance of the injectors varies from part to part and across their lifetime, and when an injector is under performing according to its specification it is often unknown what is causing the problem. An apparatus for operating a gaseous fuel injector in an engine comprises a mass flow sensor that generates a signal representative of the mass flow rate of the gaseous fuel in a supply conduit in the engine. A controller connected with the injector and the mass flow sensor is programmed to actuate the injector to introduce gaseous fuel into the engine; determine the actual mass flow rate of the gaseous fuel based on the signal representative of the mass flow rate; calculate a difference between the actual mass flow rate and a desired mass flow rate; and adjust at least one of on-time of the gaseous fuel injector and a magnitude of an injector activation signal by respective amounts based on the difference when the absolute value of the difference is greater than a predetermined value.
摘要翻译：气体燃料喷射器的燃油喷射精度对于有效的发动机运转是重要的。然而，喷射器的性能在一段时间和整个寿命期间不同，并且当喷射器根据其规格执行时，通常不清楚是什么导致问题。用于在发动机中操作气体燃料喷射器的装置包括质量流量传感器，其产生表示发动机中的供应管道中的气体燃料的质量流率的信号。与喷射器和质量流量传感器连接的控制器被编程为致动喷射器以将气体燃料引入发动机; 基于表示质量流量的信号，确定气体燃料的实际质量流量; 计算实际质量流量和所需质量流量之间的差; 并且当差的绝对值大于预定值时，基于差异来调节气体燃料喷射器的接通时间和喷射器启动信号的大小中的至少一个。

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