Car silencer is used to reduce the motor vehicle engine when the noise generated parts, because the length difference of the two pipes is equal to half the wavelength of the sound wave emitted by the car, so that the two columns of sound waves in the superposition of interference and offset each other to weaken the sound intensity, so that the sound is reduced, so that the effect of noise reduction.
According to the muffler principle and structure, automobile mufflers can be divided into resistance mufflers, resistance mufflers and impedance compound mufflers
1. Resistant muffler Resistant muffler is in the interior through pipes, partitions and other components to form an expansion chamber, resonance chamber and other muffler units, sound waves in the propagation of reflection and interference, reduce sound energy to achieve the purpose of noise reduction. Resistant muffler noise attenuation frequency band is limited, usually, low and middle-frequency band noise suppression effect is good, high-frequency noise suppression effect is poor, truck use resistant muffler.
2. Resistive muffler E is a muffler filled with sound-absorbing material around the pipe through which the internal exhaust gas passes to absorb sound energy to achieve the purpose of noise reduction. The noise reduction effect is good for medium and high frequency, and it is used as an automobile exhaust muffler, which is usually combined with a resistant muffler. -
3. Impedance compound muffler is a muffler composed of a resistant muffler unit and a sound-absorbing material, which has the common characteristics of a resistant and resistant muffler. It has a good noise reduction effect on low, medium and high-frequency noise.
| Number |
Material |
End closure size(Length*wide) |
| 1 |
Aluminized |
5.8"*3.3" |
| 2 |
Aluminized |
6.3"*3.9" |
| 3 |
Aluminized |
6.3"*4.6" |
| 4 |
Aluminized |
6.5"*5.2" |
| 5 |
Aluminized |
6.6"*6.2" |
| 6 |
Aluminized |
8.4"*6.3" |
| 7 |
Aluminized |
8.7"*6.8" |
| 8 |
Aluminized |
9.1"*7.9" |
| 9 |
Aluminized |
9.1"*8.5" |
| 10 |
Aluminized |
9.4"*3.9" |
| 11 |
Aluminized |
9.8"*3.8" |
| 12 |
Aluminized |
10.2"*7.3" |
| 13 |
Aluminized |
10.1"*6.3" |
| 14 |
Aluminized |
10.5"*6.0" |
| 15 |
Aluminized |
10.6"*5.9" |
| 16 |
Aluminized |
10.9"*5.0" |
| 17 |
Aluminized |
11.4"*6.7" |
| 18 |
Aluminized |
11.5"*5.7" |
| 19 |
Aluminized |
12.2"*8.4" |
| 20 |
Aluminized |
12.8"*7.1" |
Installation Instructions
The main function of the muffler
The exhaust noise of the engine is reduced, and the high-temperature exhaust gas can be discharged safely and effectively. As a part of the exhaust pipe, the muffler should ensure that the exhaust is smooth, the resistance is small and the strength is sufficient. The muffler should be subjected to 500ºC~700ºC high temperature exhaust to ensure that it is not damaged and does not lose the noise reduction effect within the specified driving mileage of the car.
Dezhou Fujiya Auto Parts Technology Company, which focuses on automotive exhaust treatment system research and development, production, and sales of high-tech enterprises. Since its inception, the company has been committed to providing customers worldwide with high-quality automotive three-way catalytic converters, diesel particulate filters (DPF), tailpipes, and mufflers.
Core product
1. Automobile three-way catalytic converter
2. Diesel Particulate Filter (DPF)
3. Car mufflers
4. Exhaust manifold
5. Corrugated pipe
6. Exhaust pipe
7. Car exhaust tips
Enterprise advantage
• Technological innovation: The company has a professional R&D team, and constantly invests R & D resources to ensure the product technology is leading.
• Quality assurance: The company has passed the ISO 9001 quality management system certification to ensure that every product meets international standards
• Customized services: The company provides customized solutions that can adjust product specifications and performance according to customer needs
• Global layout: excellent quality and active after-sales service, the company's products are exported to many countries and regions around the world.
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