Gasoline engine exhaust silencer composed of porous pipes
An exhaust muffler, gasoline engine technology, applied in the direction of engine components, machines/engines, exhaust devices, etc., can solve problems such as unsatisfactory, low maximum engine power, large power loss, etc., achieve soft and stable sound, and reduce noise pollution Effect
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[0045] Example
[0046] like Figure 1 to Figure 6 As shown, a gasoline engine exhaust muffler composed of multi-hole tubes of the present invention includes a front end cover, an outer cylinder 1, a tail cover and a tail pipe 2 connected in sequence; it also includes a muffler assembly arranged in the outer cylinder 1. , wherein the muffler assembly includes a first porous tube 3, a second porous tube 4 and a glass fiber supporting porous tube 5, the front end cover is composed of an inner front end cover 6 and an outer front end cover 7, and the tail cover is composed of an inner tail cover 8 It is combined with the outer tail cover 9 to form.
[0047] Specifically, the wall of the first porous pipe 3 in this embodiment is provided with 216 first muffler holes 10 , and the diameter d1 of the first muffler holes 10 is 3.5 mm, and two adjacent first muffler holes 10 are provided. The center distance L1 of the hole 10 is 14.92 mm. The first porous tube 3 is built into the sec...
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