The original muffler with silencer-based resistive, power consumption, noise reduction is not ideal. After careful argument, Weifang Huadong gas engine providers, application three combinations of noise reduction technology, will transform the new combined muffler muffler. The main components of the modular muffler muffler damping have to spray chamber, perforated muffler cover and sound absorbing insulation and sound absorption resonance plate. Sound source through the first stage of the spray chamber muffler vibration, noise may be low frequency sound energy source sufficiently resistant to dissipation. The current domestic gas fuel buses and related infrastructure components industry is not perfect, Shandong East China gas engine partners, users of the gas engine electronic control technology is also felt mystery, and domestic gas engine electronic control skeptical. In Beijing, Shanghai as the representative of developed cities, East China gas engine, mainly imported gas engines. In recent years, domestic gas engine not only in supporting the power range to achieve a broadened, but also a breakthrough in the field of supporting, Weifang Huadong gas engine service, during operation of the fault repair rate is greatly reduced. Initially the gas turbines are designed for a mine working conditions, the resulting unit is running noise is generally 95 ~ 110 dB (A). Noise standard GB 3096-93 urban regional environmental noise situation downtown were strict rules for class 2 area (residential, commercial, industrial, mixed zone) daytime and 60 dB (A), the night of 50dB (A); For Class 1 area (residential, cultural and educational institution area) daytime and 55 dB (A), the night of 45 dB (A). East China gas engine vendors _ Shandong East China (certification) _ East China gas engine provided by Weifang Huadong Engine Co., Ltd. Weifang Huadong Engine Co., Ltd. (www.hdchai.com) is an industry leader in Shandong Weifang, the internal combustion engine, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Weifang Huadong leadership with the staff warmly welcome all inquiries negotiations to create a better future Weifang Huadong.