The principle of a car silencer is that its exhaust pipe is composed of two pipes of different lengths, which are separated before they meet. Because the difference between the lengths of the two pipes is equal to half of the wavelength of the sound waves emitted by the car, the two columns of sound waves cancel each other and interfere with each other to reduce the sound intensity when superimposed during superposition, so that the sound is reduced, so as to achieve the effect of sound attenuation.

When the engine is operating, the valve will expand as the temperature rises. If there is no gap between the valve and its transmission parts in the cold state or the gap is too small, then in the hot state, the heated expansion of the valve and its transmission parts will inevitably cause the valve to close tightly, causing the engine to leak during the compression stroke and the power stroke Gas, so that the power drops, even in severe cases, it is not easy to start. In order to eliminate this phenomenon, when the engine is coldly assembled, a certain gap is left in the valve and its transmission mechanism to compensate for the expansion of the valve after heating. This gap is called the valve gap.

What is exhaust system This article contains the following:Application of Resistant Muffler SystemCharacteristics of Resistant Muffler Application of Resistant Muffler SystemThere are many kinds of exhaust muffler system designed and manufactured by micro perforated acoustic structure, the main typ

What is exhaust mufflerExhaust Muffler refers to the airflow pipe with noise propagation at the same time, which can be attenuated or reflected back by using the pipe with sound-absorbing lining and the elbow or the pipe with sudden change of cross section area and other discontinuous acoustic imped

How exhaust muffler works This article contains the following:Working principleStructure Working principle As a necessary part of automobile, automobile muffler is mainly used to reduce the noise produced when the engine of motor vehicle works. Because the difference of the length of the two pipes i

History of exhaust muffler With the development of exhaust muffler market in China, the application and research and development of core production technology will become the focus of the industry. This article contains the following:Development historyDesign Construction Development history Early

Development of exhaust muffler In 2012, the production capacity of the mainstream enterprises in the domestic exhaust silencing system industry was further improved, and the scale of the enterprises was gradually expanded. The product structure began to enter the adjustment, the product level increa

Qingdao Greatwall Automotive Parts Co., Ltd was established in 2013. It is located in Qingdao, a coastal city in the southeast of Shandong Peninsula known as"Eastern Switzerland'. GRWA is a group company that integrates research and development, production and sales of auto parts. We mainly deals in