Motorcycle sound eliminator with dual catalysts

Abstract

The invention discloses a motorcycle sound eliminator with dual catalysts, which comprises a sound eliminator body front section, a sound eliminator partition plate, a front catalytic converter, a back catalytic converter and a catalyst sleeve, wherein the front catalytic converter and the back catalytic converter are installed in the sound eliminator body front section by the catalyst sleeve; a hole is arranged on the sound eliminator partition plate; the tail of the back catalytic converter is arranged in the hole; and the front of the catalyst sleeve penetrates through a front port of the sound eliminator body front section. The inner diameter of the front port of the sound eliminator body front section is matched with the maximal outer diameter of the catalyst sleeve. The invention solves the problems of chromium plating and internal paint filling of the sound eliminator on the premise of ensuring no cost improvement and can assemble and weld catalysts after internal paint filling or chromium plating, thereby ensuring that the catalysts are not eroded and covered so as to ensure the converting effect of the catalysts, greatly improving the production feasibility of the sound eliminator and having the advantages of simple structure and high operability.

Description

technical field [0001] The invention relates to a motorcycle muffler, in particular to a motorcycle muffler with dual catalysts. Background technique [0002] With the strict implementation of National III emission standards, more and more motorcycle mufflers are equipped with dual catalysts. The structure of the motorcycle muffler with double catalyst in the prior art is as follows: figure 1 As shown, the front catalytic converter 3 and the rear catalytic converter 4 are installed in the front section 1 of the muffler body through the catalytic sleeve 5 . The rear catalytic converter 4 is supported by the muffler partition 2 in the muffler, the catalyst sleeve 5 is supported by the front port of the front section 1 of the muffler body, the front end of the catalyst sleeve 5 is connected to the tail of the exhaust pipe 6, and the exhaust gas comes out of the exhaust pipe 6 into the catalytic converter for purification. In order to purify the effect, the diameter of the re...

AI Technical Summary

Problems solved by technology

However, because the paint cannot be poured inside, many internal parts of the muffler have to be made of stainless steel or aluminum plate, resulting in a great increase in cost

In order to control the cost, some manufacturers do not do internal painting at all, so it is difficult to guarantee the product quality

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