| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To raise the exhaust temperature so that particulate matter collected in a DPF (Diesel Particulate Filter) can be removed. <P>SOLUTION: When a fore-and-aft differential pressureΔPg of the DPF4 exceeds a predetermined differential pressureΔPh, regeneration processing of the DPF4 is performed by raising the exhaust temperature by increasing the output of an engine 1. Engine output increased in the regeneration processing of the DPF4 is accumulated by an accumulator 14 as energy of pressure oil. Thus, the PM collected by the DPF4 can be removed from the DPF4. Since the engine output increased for removing the PM can be recovered in the form effectively easily usable later for a working machine for driving respective parts by hydraulic pressure, an apparatus constitution for using the recovered energy can be simplified, and a cost increase can be reduced. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
