| 摘要 |
The present invention relates to a fixing structure of an exhausting device for a rear-wheel drive vehicle having a diesel engine mounted thereon and, more specifically, to a fixing structure of an exhausting device of a vehicle having dynamic stiffness increased by improving the mounting stiffness of a high-capacity postprocessing device mounted in response to the strengthened environmental regulations of a diesel engine. The fixing structure of an exhausting device for a rear-wheel drive diesel vehicle according to the present invention has a structure such that a bracket is fixed using a coupling bolt applied to a coupling portion between an engine and a transmission, is connected to a fixing bracket at the upper end of a postprocessing device, and is fixed to a fixing bracket at the lower part of the housing of the postprocessing device using an L-shaped bracket having a reinforcing rib applied to a boss protruding from the side surface of the transmission to enhance stiffness and improve assemblability. The fixing structure of a high-capacity exhausting device of a diesel rear-wheel drive vehicle according to the present invention can mitigate the vibration of an exhausting system by changing the natural frequency of the exhausting system via the modification of the mounting position and shape of the fixing bracket, can increase the dynamic stiffness of the exhausting system, and can reduce costs, weight, etc. via a reduction in engine development time and the modification of the bracket shape by applying an existing bolt and a transmission coupling bolt. |
