Full back pressure formula car amortization blast pipe

The utility model relates to a full back pressure formula car amortization blast pipe. This kind of full back pressure formula car amortization blast pipe including outer tube and interior network management, outside the network management, inlays between outer tube and interior network management and is equipped with the cotton layer of amortization including outer pipe box is established, outer tube one end is equipped with the waste gas entry, and the outer tube other end is equipped with exhaust outlet, and the waste gas entry linkage has first interior intubate, and the intranet pipe box is established at first interpolation outside of tubes, the outer tube is stretched out behind network management and the cotton layer of amortization in the intubate is passed in the second to the intraductal interior intubate of second of having put of intranet, and exhaust outlet overlaps and establishes at second interpolation outside of tubes. The utility model discloses simple structure, reasonable in design, waste gas gets into the intraductal chamber of intranet through first interior intubate, and the interior intracavity of network management assaults each other including the air current, makes airflow flow velocity slow down, through slowly being flowed out by exhaust outlet in the second after the intubate to reach the pressure that slows down waste gas, the amortization performance has been improved behind the cotton layer of waste gas noise process amortization.