How many gas horns are there in the truck?
An automobile horn. It can be divided into an electric motor, an air pump, a horn, an electric air horn and a mechanical air horn. Electric air horn by DC motor pump to produce compressed air, sounding device by flame retardant hose to the compressed air into the air horn (copper, silica gel or paper plates) sound, followed by the sound amplification and enlargement of sound to alert, warning function. Electric air horn from two to four or more horn tube. The car comes with a pump (brake pump or electric pump) to provide air pressure, car horn switch connected electronic switch, as shown in the diagram is a kind of electric air horn. Mechanical air horn pronunciation device and other air horn as is changed into a manual by the electric pump, mainly applicable to the fans on the football game, bicycles and other places lack of power.
Generally only install a horn, an air horn has two horn tubes, there are three, four pipes, the volume increases is not obvious. Some large buses have two sets of speakers and four sets, which makes no sense except to increase the waste gas flow. In addition, I have encountered freight trucks, there is only one horn to install the train, but the voice is much larger than the ordinary gas horn.
Vehicle mounted electric pneumatic horn mainly has 12V, 24V and other specifications, mainly applicable to motorcycles, automobiles. 24V pneumatic horn is mainly used in container trucks, medium trucks, large buses and other large vehicles. Air horn horn length divided into different audio level, the longer the length of sound is low and the length of the short sound more high.
There is usually a gas horn in a truck.Generally only install a horn, an air horn has two horn tubes, there are three, four pipes, the volume increases is not obvious. Some large buses have two sets of speakers and four sets, which makes no sense except to increase the waste gas flow.
