| 摘要 |
<p>PURPOSE: To suppress excessive increase of a combustion temperature in a combustive purge of particulates accumulated in a filter and to maintain combustion at the same time so as to carry out filter regeneration in a short time. CONSTITUTION: A filter regenerative device is provided with a filter 1 collecting particulates, an air blowing means 10 feeding particulate combustion gas, and a sucking pipe 17 arranged in the vicinity of an exhaust trap 18, and combustion gas passed through the filter 1 is sucked by means of the air blowing means 10 via the sucking pipe 17. According to a combustion condition inside the filter 1, a minimum quantity of oxygen required for combustion is fed to the filter 1, so that excessive increase of a combustion temperature is suppressed, and mechanical breakage of the filter 1 is prevented. At the same time, combustion is maintained, so that a filter regeneration processing time is shortened, and practical convenience for a machine using an internal combustion engine can be provided.</p> |
