Raywin Powertrain Technology Co.,Ltd.

  The coordination among its various components is crucial, with the main component in the carburetor being the main fuel supply system. Besides ensuring the normal operation of the engine at idle and low loads, the main fuel supply system gradually leans out the mixture supplied by the carburetor as the throttle opening increases, approaching the most economical composition under load. The working principle of the main fuel supply system in a carburetor is as follows:

  The foam tube in the carburetor's fuel supply system corrects the fuel delivery in advance. After the fuel is foamed, it becomes easier to be suctioned and dispersed. As the various permeable holes successively expose themselves above the oil surface, the main metering jet gradually approaches the main nozzle, resulting in a gradual increase in the mixture's concentration. The carburetor introduces a minimal amount of air into the main nozzle to reduce the pressure difference inside and outside the main metering jet, thereby decreasing the gasoline's flow velocity and flow rate. This satisfies the ideal fuel delivery characteristics of the carburetor.