JPS6336616U - - Google Patents

Description

[Brief explanation of drawings]

FIG. 1 is a configuration diagram showing the normal state of the reproducing apparatus according to the embodiment of the present invention when the filter is not regenerated. FIG. 2 is a main part configuration diagram showing the state when the filter is being regenerated. FIG. 3 is a configuration diagram showing a normal state of a reproducing apparatus according to another embodiment of the present invention when the filter is not regenerated. FIG. 4 is a main part configuration diagram showing the state when the filter is being regenerated. 1: Engine, 3a, 3b: Exhaust passage, 4: Particulate collector, 5: Filter, 6: Bypass passage, 8: Opening/closing valve, 15: Combustion chamber (air heating means), 16: Switching valve, 33: Air tank (heated air introduction means), 40: electric heater (air heating means).

Claims (1)

[Claims for Utility Model Registration] A particulate collector provided in an exhaust passage of an engine, a filter provided in the collector, an exhaust passage upstream of the collector, and a downstream part of the collector. a bypass passage directly connected to the side exhaust passage;
an on-off valve for opening and closing the bypass passage; an air heating means disposed downstream of the filter; an introduction means for introducing air heated by the heating means into the filter; and a switching valve that communicates with either the exhaust passage or the air heating means, and the switching valve is switched so as to open the on-off valve and communicate the downstream side of the filter with the air heating means. A regenerating device for a particulate filter, wherein heated air is introduced by a means to burn and remove collected particulate matter in the filter.