| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent generation of scuff and seizure by the fact that an oil deposited on a cylinder liner by collision of a fuel with an inner surface of the cylinder liner is diluted by making an injection timing of late post-injection earlier when deposited particulate of DPF is removed. <P>SOLUTION: In the DPF regenerative device, DPF (dark smoke removal device) 1 for removing a fine solid substance in an exhaust gas and a load detector 3 in a multi-cylinder engine provided with a plurality of cylinders and provided with a fuel injection device capable of controlling a fuel injection timing by a fuel injection valve 21 for performing injection of the fuel into the cylinder are provided, and an injection cylinder control device 2 is provided. The injection cylinder control device is constituted such that it stops the main fuel injection of at least one cylinder set by the fuel injection timing out of the plurality of cylinders at a low load operation area where a detection value of load is not more than a constant load, performs the late post-injection and makes the injection timing of the late post-injection approach a top dead center. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
