PURPOSE: To conduct a cleaning work of an exhaust system efficiently and make the shape of an exhaust pipe simple and reduce the manufacturing cost by installing a removable wall face coating member on a face facing a region where a reaction by-product attaches.
CONSTITUTION: A shield sleeve 14 is set in a section facing a space 5 on an inner face of an inlet flange 4. An exhaust chamber 20 connected to an exhaust cylinder 15 which is connected to the inlet flange 4 has a flat box 17 whose end face is closed by a removable cover 19. Exhaust gas flows into the inlet flange 4 through a lower end of the space 5 facing the inner face of the inlet flange 4 and it is suddenly cooled at a point when it is circulated in a connection channel 21 and a reaction by-product attaches the shield sleeve 14 and an inner face of a box 22 in connection channel. In order to eliminate the attached reaction by-product, the cover 19 is removed and the box 22 in the connection channel is taken out and the inlet flange 4 is removed and the shield sleeve 14 is taken out and then the shield sleeve 14 and the box 22 in the connection channel are cleaned.
SATO TAKAYUKI
KAIHATSU HIDEKI
