| 摘要 |
The invention relates to a method and apparatus for attenuating sound of exhaust gases of an engine, the method comprising leading the exhaust gases of the engine through an inlet duct (2) to a sound attenuation space separated from the surroundings and further through an outlet duct (3) out of the sound attenuation space. The sound attenuation space formed by the casing part (1) is provided with an ejection space (6), to which the exhaust gases from the engine are arranged to be directed, and a recirculation space (8). A part of the exhaust gas flow directed to the ejection space (6) is arranged to flow to the recirculation space (8) and stay in continuous circulation in such a manner that the recirculated part of the exhaust gas flow is accommodated by means of an ejector effect to the exhaust gas flow coming from the engine and directed to the ejection space (6). |
