| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To remove particulate matter collected in a DPF by raising the exhaust temperature. <P>SOLUTION: A working machine executes the regeneration processing of the DPF4 by raising the exhaust temperature through the increase in the output of an engine 1 when a fore-and-aft pressure differenceΔPg of the DPF4 exceeds a predetermined pressure differenceΔPh. The engine output increased during the regeneration processing of the DPF4 is accumulated in an accumulator 14 taken as the energy of pressure oil. By so doing, the PM collected in 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 the working machine for driving respective parts by hydraulic pressure, an apparatus constitution for using the recovered energy can be simplified so that a cost increase can be suppressed. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
