Where can I hear the mysterious sound of Harley motorcycles? Think of Marlboro cigarettes. That's just tobacco wrapped in paper. In addition to its competitors, Marlboro also has its winning secrets. This part comes from advertising, while the other part comes from culture. There is always someone who smokes Marlboro cigarettes. Such people promote and strengthen the brand image, which can attract more people of the same kind to enter the brand.
For Harry, although it has also done some advertising, its trademark impression mainly comes from other aspects:
The above factors, combined with other ways, have created a very unique resonance and promotional effect in the minds of the general public, which is extremely attractive. The mystery of Harley was introduced earlier, and now the unique charm of Harley motorcycles is introduced.
Undeniably, Harley motorcycles have a unique sound, especially when the motorcycle muffler is removed. Voice is also a mysterious part. Acoustics is related to engine design.
As long as you understand the working principle of a car engine, you will understand how a four stroke gasoline engine works. Every two revolutions, the piston undergoes four strokes: intake, compression, combustion, and exhaust. When the grass cutter is idling, you can hear the "bang bang" sound during each stroke. What you actually hear is the sound produced by the compressed gas emissions inside the cylinder when the exhaust valve is opened. Every time the crankshaft rotates, the exhaust valve opens and makes a loud bang.
