| 摘要 |
<p>PURPOSE:To prevent generation of bad odor in specific operations and burn the adsorbed unburnt fire particles, by causing a controller to control a first opening/closing valve, a second opening/closing valve, and a flow control valve in response to the sensor signals from a first and a second temperature sensor. CONSTITUTION:A bypass pipe passage 17 is connected to exhaust pipe passage 13 positioning at the front and rear sides of a converter 16, and a filter chamber 19, which is filled with fibrous active carbon 18, is provided to the bypass passage 17. Further, a recovering pipe passage 24, which is intended to guide an exhaust gas, having flown out from the filter chamber 19, to an inlet of the converter 16, is provided in a manner that the passage 24 branches from the passage 17. The sensor outputs of first and second temperature sensors 31, 32 are connected to control inputs of a controller 33, the control outputs of which are connected to stepping motors 27 to 30. The exhaust gas is guided to the bypass passage 17 and has unburnt fire particles therein adsorbed by the active carbon 18 in the filter chamber 19. This prevents the generation of bad odor and causes burning of the unburnt fire particles adsorbed.</p> |
