| 摘要 |
<p>PURPOSE: To enable even and stable capturing of exhaust particulates and regeneration of a filter with a simple structure and a low manufacturing cost. CONSTITUTION: A regenerating heater 11a is arranged while being in contact with an inner periphery of a filter element 11. A plurality of exhaust holes 11b are regularly formed on the heater 11a. A circular groove 11f is formed around a cylindrical center axis of the heater 11a on an inner peripheral surface between the adjacent exhaust holes 11b, so as to recess to the outer peripheral side (to the side of the filter element 11). When capturing particulates in exhaust gas, exhaust gas passing the exhaust holes 11b enters a back surface of a heating part of the heater 11a compared to the conventional heater. Whole of the filter can be utilized as a capturing area for particulates. Unevenness of a capturing state is suppressed. It is thus possible to satisfactorily regenerate the filter while suppressing increase of pressure loss, uneven regeneration and excessive consumption of power.</p> |
