| 摘要 |
PURPOSE:To resolve a problem of air pollution, and acquire an energy saving effect while miniaturizing a device and cutting its cost by providing a leakage gas guiding part for guiding leakage gas to the engine intake side. CONSTITUTION:On the holding part of a holding member for a catalyst 1 is provided a closed container in which a space S for introducing leakage gas at the holding part is formed to surround the holding part. And, an outlet 7a for the leakage gas is formed at a suitable position of the closed container 7. The base end of a pipeline 5, whose fore end is connected to the intake side pipeline of an engine 3, for guiding the leakage gas to an engine intake side, or effective utilization of heat energy existing in the leakage gas is connected to the outlet 7a. Thereby, flowing out of the leakage gas into the atmosphere is avoided while attempting miniaturization and cost cutting of the device, so that a problem of air pollution can be resolved. Further, heat energy existing in the leakage gas is effectively utilized in engine operation to cause an energy saving effect. |
