公开(公告)号：US20110131960A1

公开(公告)日：2011-06-09

申请号：US12631479

申请日：2009-12-04

申请人： Stephen Thomas ,  James Reynolds ,  Sean Keidel ,  Michael Shovels

发明人： Stephen Thomas ,  James Reynolds ,  Sean Keidel ,  Michael Shovels

IPC分类号： F01N3/10

CPC分类号： F01N3/208 ,  Y02A50/2325 ,  Y02T10/24

摘要： An NOx injection system for treating a vehicle exhaust system comprises an injector for injecting a select material into the vehicle exhaust system and including an electrical coil. An impedance element is connected in series with a flyback diode across the coil. An injector firing control circuit is electrically connected to the injector for driving the coil, the switching circuit operating in an on mode to fire the injector and in an off mode to turn off the injector. The impedance element increases reverse voltage to increase injector turn off response.

摘要翻译： 用于处理车辆排气系统的NOx注入系统包括用于将选择材料注入车辆排气系统并包括电线圈的注射器。 阻抗元件与线圈上的回扫二极管串联连接。 喷射器点火控制电路电连接到用于驱动线圈的喷射器，切换电路在打开模式下操作以对喷射器进行点火并处于关闭模式以关闭喷射器。 阻抗元件增加反向电压以增加喷射器关闭响应。

公开(公告)号：US08468810B2

公开(公告)日：2013-06-25

申请号：US12631479

申请日：2009-12-04

申请人： Stephen Thomas ,  James Reynolds ,  Sean Keidel ,  Michael Shovels

发明人： Stephen Thomas ,  James Reynolds ,  Sean Keidel ,  Michael Shovels

IPC分类号： F01N3/00

CPC分类号： F01N3/208 ,  Y02A50/2325 ,  Y02T10/24

摘要： An NOx injection system for treating a vehicle exhaust system comprises an injector for injecting a select material into the vehicle exhaust system and including an electrical coil. An impedance element is connected in series with a flyback diode across the coil. An injector firing control circuit is electrically connected to the injector for driving the coil, the switching circuit operating in an on mode to fire the injector and in an off mode to turn off the injector. The impedance element increases reverse voltage to increase injector turn off response.

摘要翻译： 用于处理车辆排气系统的NOx注入系统包括用于将选择材料注入车辆排气系统并包括电线圈的注射器。 阻抗元件与线圈上的回扫二极管串联连接。 喷射器点火控制电路电连接到用于驱动线圈的喷射器，切换电路以开启模式操作以对喷射器进行点火并处于关闭模式以关闭喷射器。 阻抗元件增加反向电压以增加喷射器关闭响应。