A noise-reducing automobile exhaust pipe device
An automotive exhaust, thin-walled technology, applied in the direction of exhaust devices, mufflers, engine components, etc., can solve the problem that the number and location of thin-walled inner liner are not suitable, and the automobile exhaust pipe does not achieve the best noise reduction effect. and other problems, to achieve the effect of enhancing the noise reduction function and prolonging the service life
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[0021] Embodiments of the present invention: as figure 1 , figure 2 As shown, a noise-reducing automobile exhaust pipe device includes a cylinder body 9, an upper joint 3, a lower joint 14, an inlet muffler 1 and an outlet muffler 16, and the inlet muffler 1 passes through the upper joint 3 into the cylinder body 9 Inside, the outlet muffler 16 is penetrated into the cylinder 9 by the lower joint 14 entrance, the part where the inlet muffler 1 and the outlet muffler 16 are installed in the cylinder 9 is provided with a muffler hole 4 , and the inner wall of the cylinder 9 is provided with a protrusion 7 .
[0022] The cylinder body 9 is provided with a first thin-walled inner container 6, a second thin-walled inner container 10, and a third thin-walled inner container 11 in sequence, passing through the first partition 5, the second partition 8, and the third partition respectively. The partition 12 is connected with the cylinder body 9 and divides the cylinder body 9 into f...
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