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" |
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.
Installation Instructions
The installation position of the car muffler
The automobile muffler is an important part of the automobile exhaust system, and its main function is to reduce the noise generated when the engine works. The installation location of the muffler usually depends on the specific design and spatial layout of the vehicle. The following are common installation locations and related specifications:
1. Installation position
• Middle position of the chassis: The front muffler is usually small in size and thin in diameter, and is installed in the middle position of the vehicle chassis
• Rear position of the chassis: The rear muffler is larger and is usually installed at the rear position of the vehicle chassis
• Rear section: For trucks and some large vehicles, the muffler is usually installed in the rear section, near the bottom of the car
• Under the car or on both sides of the rear: The mufflers of SUVs, vans, pickup trucks and other vehicles may be mounted on the back of the car or on both sides of the rear of the car
1. Car muffler
Automotive mufflers are mainly used to reduce engine exhaust noise and ensure that high-temperature exhaust gas can be safely and effectively discharged. Its main applications include:
Reduce exhaust noise: By changing the pipe structure and using sound absorbing materials, mufflers can significantly reduce exhaust noise
Optimize engine performance: The muffler design should ensure smooth exhaust and low resistance to improve engine efficiency
2. Industrial mufflers
Industrial mufflers are widely used in various industrial production environments to reduce mechanical noise and protect workers' health. Its applications include:
• Mechanical manufacturing: reduce the noise generated by machine tools, stamping equipment, etc
Automotive manufacturing: Reduce noise generated by engines, exhaust systems, etc
• Compressed air system: Control noise generated by pneumatic components to improve production efficiency
• Air duct system: reduce the noise inside the air duct and improve the working environment
3. Marine silencer
Marine mufflers are used to reduce the noise pollution inside and outside the ship and improve the comfort and safety of the ship. Its applications include:
• Air conditioning and ventilation systems: Reduce noise generated by air conditioning and ventilation equipment
• Main engine and generator: Reduce the noise generated by the main engine and generator exhaust system
• Air duct muffler: installed in the exhaust duct to reduce noise propagation
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. 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.
Payment: Telegraphic transfer, LC
Leading time: 30%TT in advance, 70% balance will pe paid before shippment.
Packing: Wooden case or Paper box
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