Environmental protective muffler has the function of oxygen supplement, catalyse and silencing of motorcycle purifier all in one. This product has the advantage of greatly saving space, lowing cost, it is not only in accordance with EU III standard, but also control the temperature under 900â„?/span>. While it remove contamination in high efficiency , it successfully disperses the heat created, make the whole carrier not into fusion, avoid aging of activator due to heat aging and rapid life shortening.

Self-adaptable second air supplement inlet valve the self-adaptable second air supplement inlet valve designed can make use of engine power effect, i.e. passive air supplement method, to realize optimized control on quantity and timing of oxygen supplement, reliable action, good flexible control, easy for maintenance and long life; it can prevent bad influence on vehicle performance, guarantee the even distribution of air flow while passing activator, avoid overheat, fatigue or agglomeration of activator, is provided with good discharge power effect; prevent the increase of whole vehicle noise and the occurrence of discharge leakage; it controls cost. Purifier temperature field, purifier collocation selection, purifier specification confirmation and purifier heatisolation layer and shock absorption test have been carried out on product and is in accordance with whole vehicle test result of EU II and EU III

Research and development of high efficient activator  carry out whole activator performance evaluation and part of surface feature on simulated motorcycle discharge purifying device and actual engine discharge device with prepared activator, screen out some of the good formula with low temperature inflammation and catalyzing performance

Activator matches with second air valve  Activator prepared according to these formula will be loaded on activator on whole metal activator carrier and regulate through matching