The carburetor is also called "carburetor". A component used in an engine to form a combustible mixture between fuel and air. A simple vaporizer is mainly composed of a float chamber, a metering hole, a nozzle, a throat, and a throttle (commonly known as the throttle). The part above the throat is called the intake chamber, and the part below the throat is called the mixing chamber.
Air enters the upper part of the throat through the air filter, forming a high-speed airflow at the throat, creating a negative pressure zone; the gasoline in the float chamber is ejected from the nozzle through the measuring hole under the effect of the pressure difference between the float chamber and the throat, and is sprayed at a high speed. The air flow is atomized to form a mixed gas. The formation process of the combustible mixture starts in the carburetor. During the intake and compression process, the oil droplets continue to evaporate and continue to mix with the air until the end of the compression stroke and the beginning of ignition. A uniform and good combustible mixture plays a key role. With the change of engine operating conditions, the carburetor is required to change the concentration and quantity of the combustible mixture accordingly.
The carburetor is equipped with compensation devices for idle speed, starting, enrichment, and acceleration. The type of vaporizer is divided into 3 types according to the air flow mode: up suction, down suction and flat suction; according to the number of throats, it is divided into three types: single throat, double throat and triple throat; divided by the number of mixing chambers It is single-chamber and double-chamber.
